Power supply and method for use in a computer system to confirm a save operation of the computer system and to stop a supply of power to the computer system after confirmation

Claim 2

A power supply system for use in a computer comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section having coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal, a low batter display section, means for monitoring a voltage and a current of said battery, changing a reference voltage value in accordance with a detected current value, comparing a detected voltage value with said reference voltage value and causing said low battery display section to indicate a low battery when said detected voltage value is below said reference voltage value, and means for dividing a level of said low battery into first through third sub-levels in accordance with said detected current value, causing said low battery display section to indicate said low battery upon detection of said first sub-level, sending said power off request signal to said computer system upon detection of said second sub-level, and outputting said power off signal to said power output section.

Claim 3

The power supply system according to claim 1, wherein said power output section includes means for supplying power to said battery for a charging operation, and wherein said power control section includes a charge completion display section, means for calculating a charged capacitance and a remaining capacitance of said battery and a charging time based on a value of a current flowing from said battery, means for determining the completion of charging said battery from said calculated charged capacitance, remaining capacitance and charging time, and means for causing said charge completion display section to indicate said completion of charging.

Claim 4

The power supply system according to claim 1, wherein said power output section includes an AC adapter input voltage display section, means for detecting an input voltage of said AC adapter, and means for causing said AC adapter input voltage display section to indicate a voltage abnormality when said voltage abnormality occurs.

Claim 5

The power supply system according to claim 1, wherein said power output section includes power switch means for indicating ON/OFF modes of power supply to a computer system assembly, disk switch means for indicating ON/OFF modes of power supply to a disk drive, and reset switch means for indicating a system initialization, and wherein said power control section includes means for detecting an ON or OFF signal from said power switch, disk switch and reset switch, and means for outputting a signal to either supply power or inhibit the supply of power to said power output section.

Claim 6

The power supply system according to claim 1, wherein said power control section includes analog-to-digital converter means for converting voltage values and current values from said battery and said AC adapter into digital values.

Claim 7

The power supply system according to claim 1, wherein said computer system is a small size personal computer.

Claim 8

The power supply system according to claim 1, wherein said externally-supplied power off request signal is sent to said computer system when a power provided on said computer system is turned off.

Claim 9

The power supply system according to claim 1, wherein said externally-supplied power off request signal is sent to said computer system when a disk drive switch provided on said computer system is turned off.

Claim 10

The power supply system according to claim 1, wherein said externally-supplied power off request signal is sent to said computer system when power of said battery is below a predetermined value.

Claim 11

The power supply system according to claim 1, wherein said power control section includes means for informing said computer system of a battery's remaining capacitance in response to a battery remaining capacitance check request from said computer system.

Claim 14

A power supply system for use in a computer having a main memory, registers and a battery backed-up random access memory (RAM), comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section having coupling means for connecting said power control system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, the computer system saving at least contents of the main memory and the registers into the battery backed-up RAM in response to the system power off request signal, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, and means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal.

Claim 15

A power supply system for use in a computer having a main memory, registers and a battery backed-up random access memory (RAM), comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section having coupling means for connecting said power control system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, the computer system saving at least contents of the main memory and the registers into the battery backed-up RAM in response to the system power off request signal, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, and means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal.

Claim 16

The power supply system according to claim 12, wherein said power output section includes means for supplying power to said battery for a charging operation, and wherein said power control section includes a charge completion display section, means for calculating a charged capacitance and a remaining capacitance of said battery and a charging time based on a value of a current flowing from said battery, means for determining the completion of charging said battery from said calculated charged capacitance, remaining capacitance and charging time, and means for causing said charge completion display section to indicate said completion of charging.

Claim 17

The power supply system according to claim 12, wherein said power output section includes an AC adapter input voltage display section, means for detecting an input voltage of said AC adapter, and means for causing said AC adapter input voltage display section to indicate a voltage abnormality when said voltage abnormality occurs.

Claim 18

The power supply system according to claim 12, wherein said computer system includes power switch means for indicating ON/OFF modes of power supply to a computer system assembly, disk switch means for indicating ON/OFF modes of power supply to a disk drive, and reset switch means for indicating a system initialization, and wherein said power control section includes means for detecting an ON or OFF signal from said power switch, disk switch and reset switch, and means for outputting a signal to either supply power or inhibit the supply of power to said power output section.

Claim 19

The power supply system according to claim 12, wherein said power control section includes analog-to-digital converter means for converting voltage values and current values from said battery and said AC adapter into digital values.

Claim 20

The power supply system according to claim 12, wherein said computer system is a small size personal computer.

Claim 21

The power supply system according to claim 12, wherein said externally-supplied power off request signal is sent to said computer system when a power provided on said computer system is turned off.

Claim 22

The power supply system according to claim 12, wherein said externally-supplied power off request signal is sent to said computer system when a disk drive switch provided on said computer system is turned off.

Claim 23

The power supply system according to claim 12, wherein said externally-supplied power off request signal is sent to said computer system when power of said battery is below a predetermined value.

Claim 24

The power supply system according to claim 12, wherein said power control section includes means for informing said computer system of a battery's remaining capacitance in response to a battery remaining capacitance check request from said computer system.

Claim 25

A power supply system for use in a computer having a disk drive, comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section having coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal, and means for performing a disk drive power off sequence if said receiving means receives no acknowledgment signal during a predetermined period of time.

Claim 26

A power supply system for use in a computer having a disk drive, comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section having coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal, and means for performing a disk drive power off sequence if said receiving means receives no acknowledgment signal during a predetermined period of time.

Claim 27

The power supply system according to claim 22, wherein said power output section includes means for supplying power to said battery for a charging operation, and wherein said power control section includes a charge completion display section, means for calculating a charged capacitance and a remaining capacitance of said battery and a charging time based on a value of a current flowing from said battery, means for determining the completion of charging said battery from said calculated charged capacitance, remaining capacitance and charging time, and means for causing said charge completion display section to indicate said completion of charging.

Claim 28

The power supply system according to claim 22, wherein said power output section includes an AC adapter input voltage display section, means for detecting an input voltage of said AC adapter, and means for causing said AC adapter input voltage display section to indicate a voltage abnormality when said voltage abnormality occurs.

Claim 29

The power supply system according to claim 22, wherein said computer system includes power switch means for indicating ON/OFF modes of power supply to a computer system assembly, disk switch means for indicating ON/OFF modes of power supply to a disk drive, and reset switch means for indicating a system initialization, and wherein said power control section includes means for detecting an ON or OFF signal from said power switch, disk switch and reset switch, and means for outputting a signal to either supply power or inhibit the supply of power to said power output section.

Claim 30

The power supply system according to claim 22, wherein said power control section includes analog-to-digital converter means for converting voltage values and current values from said battery and said AC adapter into digital values.

Claim 31

The power supply system according to claim 22, wherein said computer system is a small size personal computer.

Claim 32

The power supply system according to claim 22, wherein said system power off request signal is sent to said computer system when a power provided on said computer system is turned off.

Claim 33

The power supply system according to claim 22, wherein said system power off request signal is sent to said computer system when a disk drive switch provided on said computer system is turned off.

Claim 34

The power supply system according to claim 22, wherein said externally-supplied power off request signal is sent to said computer system when power of said battery is below a predetermined value.

Claim 35

The power supply system according to claim 22, wherein said power control section includes means for informing said computer system of a battery's remaining capacitance in response to a battery remaining capacitance check request from said computer system.

Claim 36

A power supply system for use in a computer comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including means including a microcomputer for charging the battery and for detecting completion of a charge operation when any of the following conditions is satisfied: when the battery voltage drops from a peak value by a given value; when a charged capacitance of the battery becomes 150%, provided that a nominal capacitance of the battery is 100%; and when a charging time of the battery exceeds 10 hours.

Claim 37

A power supply system for use in a computer comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including means including a microcomputer for charging the battery and for detecting completion of a charge operation when any of the following conditions is satisfied: when the battery voltage drops from a peak value by a given value; when a charged capacitance of the battery becomes 150%, provided that a nominal capacitance of the battery is 100%; and when a charging time of the battery exceeds 10 hours.

Claim 38

The power supply system according to claim 32, wherein said power output section includes means for supplying power to said battery for a charging operation, and wherein said power control section includes a charge completion display section, means for calculating a charged capacitance and a remaining capacitance of said battery and a charging time based on a value of a current flowing from said battery, means for determining the completion of charging said battery from said calculated charged capacitance, remaining capacitance and charging time, and means for causing said charge completion display section to indicate said completion of charging.

Claim 39

The power supply system according to claim 32, wherein said power control section includes an AC adapter input voltage display section, means for detecting an input voltage of said AC adapter, and means for causing said AC adapter input voltage display section to indicate a voltage abnormality when said voltage abnormality occurs.

Claim 40

The power supply system according to claim 32, wherein said computer system includes power switch means for indicating ON/OFF modes of power supply to a computer system assembly, disk switch means for indicating ON/OFF modes of power supply to a disk drive, and reset switch means for indicating a system initialization, and wherein said power control section includes means for detecting an ON or OFF signal from said power switch, disk switch and reset switch, and means for outputting a signal to either supply power or inhibit the supply of power to said power output section.

Claim 41

The power supply system according to claim 32, wherein said power control section includes analog-to-digital converter means for converting voltage values and current values from said battery and said AC adapter into digital values.

Claim 42

The power supply system according to claim 32, wherein said computer system is a small size personal computer.

Claim 43

The power supply system according to claim 32, wherein an externally-supplied power off request signal is sent to said computer system when a power provided on said computer system is turned off.

Claim 44

The power supply system according to claim 32, wherein an externally-supplied power off request signal is sent to said computer system when a disk drive switch provided on said computer system is turned off.

Claim 45

The power supply system according to claim 32, wherein an externally-supplied power off request signal is sent to said computer system when power of said battery is below a predetermined value.

Claim 46

The power supply system according to claim 32, wherein said power control section includes means for informing said computer system of a battery's remaining capacitance in response to a battery remaining capacitance check request from said computer system.

Claim 47

The power supply system according to claim 41, wherein said power control section includes means for detecting the completion of the charge operation after a predetermined period of time has elapsed from the charging operation.

Claim 48

A power supply system for use in a computer comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including controller means for automatically detecting a presence or absence of the AC adapter and the battery from a first reference voltage representing a driving voltage of the controller means, a second reference voltage representing a maximum voltage of the battery, and an analog input voltage input to the power control section such that the presence of both the AC adapter and the battery are detected when the analog input voltage is less than the second reference voltage, the absence of the AC adapter and the presence of the battery are detected when the analog input voltage is between the first reference voltage and the second reference voltage, and the presence of the AC adapter and the absence of the battery are detected when the analog input voltage is greater than or equal to the second reference voltage.

Claim 49

A power supply system for use in a computer comprising: a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including controller means for automatically detecting a presence or absence of the AC adapter and the battery from a first reference voltage representing a driving voltage of the controller means, a second reference voltage representing a maximum voltage of the battery, and an analog input voltage input to the power control section such that the presence of both the AC adapter and the battery are detected when the analog input voltage is less than the second reference voltage, the absence of the AC adapter and the presence of the battery are detected when the analog input voltage is between the first reference voltage and the second reference voltage, and the presence of the AC adapter and the absence of the battery are detected when the analog input voltage is greater than or equal to the second reference voltage.

Claim 50

The power supply system according to claim 43, wherein said power output section includes means for supplying power to said battery for a charging operation, and wherein said power control section includes a charge completion display section, means for calculating a charged capacitance and a remaining capacitance of said battery and a charging time based on a value of a current flowing from said battery, means for determining the completion of charging said battery from said calculated charged capacitance, remaining capacitance and charging time, and means for causing said charge completion display section to indicate said completion of charging.

Claim 51

The power supply system according to claim 43, wherein said power control section includes an AC adapter input voltage display section, means for detecting an input voltage of said AC adapter, and means for causing said AC adapter input voltage display section to indicate a voltage abnormality when said voltage abnormality occurs.

Claim 52

The power supply system according to claim 43, wherein said computer system includes power switch means for indicating ON/OFF modes of power supply to a computer system assembly, disk switch means for indicating ON/OFF modes of power supply to a disk drive, and reset switch means for indicating a system initialization, and wherein said power control section includes means for detecting an ON or OFF signal from said power switch, disk switch and reset switch, and means for outputting a signal to either supply power or inhibit the supply of power to said power output section.

Claim 53

The power supply system according to claim 43, wherein said power control section includes analog-to-digital converter means for converting voltage values and current values from said battery and said AC adapter into digital values.

Claim 54

The power supply system according to claim 43, wherein said computer system is a small size personal computer.

Claim 55

The power supply system according to claim 43, wherein an externally-supplied power off request signal is sent to said computer system when a power provided on said computer system is turned off.

Claim 56

The power supply system according to claim 43, wherein an externally-supplied power off request signal is sent to said computer system when a disk drive switch provided on said computer system is turned off.

Claim 57

The power supply system according to claim 43, wherein an externally-supplied power off request signal is sent to said computer system when power of said battery is below a predetermined value.

Claim 58

The power supply system according to claim 43, wherein said power control section includes means for informing said computer system of a battery's remaining capacitance in response to a battery remaining capacitance check request from said computer system.

Claim 59

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section having coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal, a low batter display section, means for monitoring a voltage and a current of said battery, changing a reference voltage value in accordance with a detected current value, comparing a detected voltage value with said reference voltage value and causing said low battery display section to indicate a low battery when said detected voltage value is below said reference voltage value, and means for dividing a level of said low battery into first through third sub-levels in accordance with said detected current value, causing said low battery display section to indicate said low battery upon detection of said first sub-level, sending said power off request signal to said computer system upon detection of said second sub-level, and outputting said power off signal to said power output section.

Claim 60

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section having coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal, a low batter display section, means for monitoring a voltage and a current of said battery, changing a reference voltage value in accordance with a detected current value, comparing a detected voltage value with said reference voltage value and causing said low battery display section to indicate a low battery when said detected voltage value is below said reference voltage value, and means for dividing a level of said low battery into first through third sub-levels in accordance with said detected current value, causing said low battery display section to indicate said low battery upon detection of said first sub-level, sending said power off request signal to said computer system upon detection of said second sub-level, and outputting said power off signal to said power output section.

Claim 61

The system according to claim 53, wherein said data processor assembly includes means for, upon reception of said power off request signal from said power control section, causing said central processing unit to interrupt a currently running program, saving information necessary to continue said interrupted program to said backup memory, and returning said acknowledgment signal to said power control section.

Claim 62

The system according to claim 54, wherein said power control section includes means for waiting for said acknowledgment signal from said data processor assembly and for sending a time out signal to said data processor assembly and a control signal to said power output section when said acknowledgment signal is not received upon the elapse of a predetermined period of time, thereby stopping the supply of power to said disk drive.

Claim 63

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, the computer system saving at least contents of the program storage means into the backup memory in response to said system power off request signal, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, and means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal,

Claim 64

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, the computer system saving at least contents of the program storage means into the backup memory in response to said system power off request signal, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, and means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal,

Claim 65

The system according to claim 56, wherein said data processor assembly includes means for, upon reception of said power off request signal from said power control section, causing said central processing unit to interrupt a currently running program, saving information necessary to continue said interrupted program to said backup memory, and returning said acknowledgment signal to said power control section.

Claim 66

The system according to claim 57, wherein said power control section includes means for waiting for said acknowledgment signal from said data processor assembly and for sending a time out signal to said data processor assembly and a control signal to said power output section when said acknowledgment signal is not received upon the elapse of a predetermined period of time, thereby stopping the supply of power to said disk drive.

Claim 67

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, and means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal; and means for performing a disk drive power off sequence if said receiving means receives no acknowledgment signal during a predetermined period of time.

Claim 68

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including coupling means for connecting said power control section to said computer system through a serial transmission path, means including a microcomputer for detecting a degradation of said power supply section output voltage indicative of impending power failure, for receiving an externally-supplied power off request signal and subsequently transmitting a system power off request signal through said serial transmission path to command a save operation to be performed by said computer system, and for receiving an acknowledgment signal through said serial transmission path to confirm the completion of said save operation, and means for transmitting said power off signal to said power output section to inhibit the supply of power through said power output section after receipt of said acknowledgment signal; and means for performing a disk drive power off sequence if said receiving means receives no acknowledgment signal during a predetermined period of time.

Claim 69

The system according to claim 59, wherein said data processor assembly includes means for, upon reception of said power off request signal from said power control section, causing said central processing unit to interrupt a currently-running program, saving information necessary to continue said interrupted program to said backup memory, and returning said acknowledgment signal to said power control section.

Claim 70

The system according to claim 59, wherein said power control section includes means for waiting for said acknowledgment signal from said data processor assembly and for sending a time out signal to said data processor assembly and a control signal to said power output section when said acknowledgment signal is not received upon the elapse of a predetermined period of time, thereby stopping the supply of power to said disk drive.

Claim 71

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including means including a microcomputer for charging the battery and for detecting completion of a charge operation when any of the following conditions is satisfied: when the battery voltage drops from a peak value by a given value; when a charged capacitance of the battery becomes 150%, provided that a nominal capacitance of the battery is 100%; and when a charging time of the battery exceeds 10 hours.

Claim 72

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including means including a microcomputer for charging the battery and for detecting completion of a charge operation when any of the following conditions is satisfied: when the battery voltage drops from a peak value by a given value; when a charged capacitance of the battery becomes 150%, provided that a nominal capacitance of the battery is 100%; and when a charging time of the battery exceeds 10 hours.

Claim 73

The system according to claim 62, wherein said data processor assembly includes means for, upon reception of said power off request signal from said power control section, causing said central processing unit to interrupt a currently-running program, saving information necessary to continue said interrupted program to said backup memory, and returning a power off acknowledgment signal to said power control section.

Claim 74

The system according to claim 63, wherein said power control section includes means for waiting for said power off acknowledgment signal from said data processor assembly and for sending a time out signal to said data processor assembly and a control signal to said power output section when said power off acknowledgment signal is not received upon the elapse of a predetermined period of time, thereby stopping the supply of power to said disk drive.

Claim 75

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including controller means for automatically detecting a presence or absence of the AC adapter and the battery from a first reference voltage representing a driving voltage of the controller means, a second reference voltage representing a maximum voltage of the battery, and an analog input voltage input to the power control section such that the presence of both the AC adapter and the battery are detected when the analog input voltage is less than the second reference voltage, the absence of the AC adapter and the presence of the battery are detected when the analog input voltage is between the first reference voltage and the second reference voltage, and the presence of the AC adapter and the absence of the battery are detected when the analog input voltage is greater than or equal to the second reference voltage.

Claim 76

A portable computer system comprising: a data processor assembly including, a central processing unit, program storage means for storing a program for controlling said central processing unit and a data processing result, a backup memory, and a disk drive; a serial transmission path coupled to said data processor assembly; a power supply section comprising any of a battery and an AC adapter, said power supply section having an output voltage; a power output section coupled to said power supply section and including coupling means for supplying power from said power supply section to said computer system, and means, responsive to a power off signal, for inhibiting the supply of all power to said computer system; and a power control section including controller means for automatically detecting a presence or absence of the AC adapter and the battery from a first reference voltage representing a driving voltage of the controller means, a second reference voltage representing a maximum voltage of the battery, and an analog input voltage input to the power control section such that the presence of both the AC adapter and the battery are detected when the analog input voltage is less than the second reference voltage, the absence of the AC adapter and the presence of the battery are detected when the analog input voltage is between the first reference voltage and the second reference voltage, and the presence of the AC adapter and the absence of the battery are detected when the analog input voltage is greater than or equal to the second reference voltage.

Claim 77

The system according to claim 65, wherein said data processor assembly includes means for, upon reception of said power off request signal from said power control section, causing said central processing unit to interrupt a currently-running program, saving information necessary to continue said interrupted program to said backup memory, and returning a power off acknowledgment signal to said power control section.

Claim 78

The system according to claim 66, wherein said power control section includes means for waiting for said power off acknowledgment signal from said data processor assembly and for sending a time out signal to said data processor assembly and a control signal to said power output section when said power off acknowledgment signal is not received upon the elapse of a predetermined period of time, thereby stopping the supply of power to said disk drive.