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US5270946A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for controlling selection of batteries

Assignee: Toshiba Corp
•
Filing: 1992-07-02
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Granted: 1993-12-14
•
Expires: 2012-07-02
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Abstract

Abstract In a battery-driven computer system, a flip-flop circuit selects one of two switches for switching a power supply to the computer system in accordance with the terminal voltages of batteries detected by detecting circuits. When the first switch is switched on, the first battery coupled to the first switch supplies its power to the computer system. In this case, the second switch is switched off and the power from the second battery coupled to the second switch is not supplied to the computer system. When the terminal voltage of the first battgnal representing the power condition of the batteries.

Inventors

  • 👤 Kazuya Shibasaki
  • 👤 Hironori Ito
  • 👤 Yasuhiro Ohashi
  • 👤 Masahiko Kasashima

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 16:45
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/50; H02J7/575; G; G06; G06F; G06F1/00; G06F1/26; G06F1/263; H02J9/00; H02J9/04; H02J9/06; H02J9/061

Claims Analysis

Total Claims: 56
Claim 1
Independent Claim 180 words
An apparatus for supplying power to a device, the apparatus comprising: a plurality of batteries, each battery having a terminal; detecting means for detecting voltages of the batteries; means for selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the device while conducting a positive current through the terminal of the first battery; means for selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the device, and for isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; means for reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage; and signaling means for signaling a power condition of the first battery when the detected voltage in the first battery is less than the predetermined voltage.
Claim 2
Independent Claim 180 words
An apparatus for supplying power to a device, the apparatus comprising: a plurality of batteries, each battery having a terminal; detecting means for detecting voltages of the batteries; means for selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the device while conducting a positive current through the terminal of the first battery; means for selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the device, and for isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; means for reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage; and signaling means for signaling a power condition of the first battery when the detected voltage in the first battery is less than the predetermined voltage.
Claim 3
Dependent Claim 23 words
The apparatus according to claim 1, wherein the detecting means includes comparing means for comparing voltages of the batteries with the predetermined voltage.
Claim 4
Dependent Claim 22 words
The apparatus according to claim 1, wherein the signaling means includes light-indicating means for representing the power condition of the first battery.
Claim 5
Dependent Claim 25 words
The apparatus according to claim 1, wherein the signaling means includes voice-outputting means for voice-outputting a signal representing the power condition of the first battery.
Claim 6
Dependent Claim 40 words
The apparatus according to claim 1, wherein the signaling means includes: light-indicating means for providing alight indication representing the power condition of the first battery; and voice-outputting means for voice-outputting a signal representing the power condition of the first battery.
Claim 7
Dependent Claim 48 words
The apparatus according to claim 1, wherein the detecting means includes means for generating a first signal to indicate a voltage level of the first battery, and wherein the means for selecting the second battery includes means for isolating the first battery in response to the first signal.
Claim 8
Dependent Claim 63 words
The apparatus according to claim 1, wherein the detecting means includes means for generating a first signal to indicate a voltage level of the first battery, and a second signal to indicate a voltage level of the second battery, and wherein the means for selecting the second battery includes means for isolating the first battery in response to the first and second signals.
Claim 9
Dependent Claim 188 words
An information processing system comprising: a computer system; a plurality of batteries for supplying power to the computer system, each battery having a terminal; detecting means for detecting voltages of the batteries; and means for selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the computer system while conducting a positive current through the terminal of the first battery; means for selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the computer system, and for isolating the first battery from the computer system while conducting a current no less than zero through the terminal of the first battery; means for reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage; and signaling means for signaling a power condition of the first battery when the detected voltage in the first battery is less than the predetermined voltage.
Claim 10
Dependent Claim 188 words
An information processing system comprising: a computer system; a plurality of batteries for supplying power to the computer system, each battery having a terminal; detecting means for detecting voltages of the batteries; and means for selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the computer system while conducting a positive current through the terminal of the first battery; means for selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the computer system, and for isolating the first battery from the computer system while conducting a current no less than zero through the terminal of the first battery; means for reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage; and signaling means for signaling a power condition of the first battery when the detected voltage in the first battery is less than the predetermined voltage.
Claim 11
Dependent Claim 23 words
The apparatus according to claim 8, wherein the detecting means includes comparing means for comparing voltages of the batteries with the predetermined voltage.
Claim 12
Dependent Claim 22 words
The apparatus according to claim 8, wherein the signaling means includes light-indicating means for representing the power condition of the first battery.
Claim 13
Dependent Claim 25 words
The apparatus according to claim 8, wherein the signaling means includes voice-outputting means for voice-outputting a signal representing the power condition of the first battery.
Claim 14
Dependent Claim 41 words
The apparatus according to claim 8, wherein the signaling means includes: light-indicating means for providing a light indication representing the power condition of the first battery and voice-outputting means for voice-outputting a signal representing the power condition of the first battery.
Claim 15
Dependent Claim 48 words
The apparatus according to claim 8, wherein the detecting means includes means for generating a first signal to indicate a voltage level of the first battery, and wherein the means for selecting the second battery includes means for isolating the first battery in response to the first signal.
Claim 16
Dependent Claim 63 words
The apparatus according to claim 8, wherein the detecting means includes means for generating a first signal to indicate a voltage level of the first battery, and a second signal to indicate a voltage level of the second battery, and wherein the means for selecting the second battery includes means for isolating the first battery in response to the first and second signals.
Claim 17
Dependent Claim 179 words
In a system having a device and a plurality of batteries, each battery having a terminal, a method for supplying power to the device, the method comprising the steps of: detecting voltages of the plurality of batteries; selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the device while conducting a positive current through the terminal of the first battery; selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the device, and isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage; and signaling a power condition of the first battery when the detected voltage in the first battery is less than the predetermined voltage.
Claim 18
Dependent Claim 179 words
In a system having a device and a plurality of batteries, each battery having a terminal, a method for supplying power to the device, the method comprising the steps of: detecting voltages of the plurality of batteries; selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the device while conducting a positive current through the terminal of the first battery; selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the device, and isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage; and signaling a power condition of the first battery when the detected voltage in the first battery is less than the predetermined voltage.
Claim 19
Dependent Claim 23 words
The method according to claim 15, wherein the detecting step includes the step of comparing voltages of the batteries with the predetermined voltage.
Claim 20
Dependent Claim 26 words
The method according to claim 15, wherein the signaling step includes the step of providing a light indication representing the power condition of the first battery.
Claim 21
Dependent Claim 25 words
The method according to claim 15, wherein the signalling step includes the step of voice-outputting a signal representing the power condition of the first battery.
Claim 22
Dependent Claim 38 words
The method according to claim 15, wherein the signaling step includes the steps of: providing a light indication representing the power condition of the first battery; and voice-outputting a signal representing the power condition of the first battery.
Claim 23
Dependent Claim 50 words
The method according to claim 15, wherein the detecting step includes the substep of generating a first signal to indicate a voltage level of the first battery, and wherein the step of selecting the second battery includes the substep of isolating the first battery in response to the first signal.
Claim 24
Dependent Claim 62 words
The method according to claim 15, wherein the detecting step includes the substep of generating a first signal to indicate a voltage level of the first battery, and a second signal to indicate a voltage level of the second battery, and wherein the step of selecting the second battery includes isolating the first battery in response to the first and second signals.
Claim 25
Independent Claim 137 words
An apparatus for supplying power to a device, the apparatus comprising: a plurality of batteries, each battery having a terminal; detecting means for detecting voltages of the batteries; calculating means for calculating power consumption of the first battery from the detected voltages in the first battery, to obtain remaining power of the first battery; and means for selecting a second battery from the plurality of batteries when the remaining power in the first battery is less than a predetermined power, to supply power from the second battery to the device, and for isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; and signaling means for signaling a power condition of the first battery when the obtained remaining power is less than the predetermined power.
Claim 26
Independent Claim 137 words
An apparatus for supplying power to a device, the apparatus comprising: a plurality of batteries, each battery having a terminal; detecting means for detecting voltages of the batteries; calculating means for calculating power consumption of the first battery from the detected voltages in the first battery, to obtain remaining power of the first battery; and means for selecting a second battery from the plurality of batteries when the remaining power in the first battery is less than a predetermined power, to supply power from the second battery to the device, and for isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; and signaling means for signaling a power condition of the first battery when the obtained remaining power is less than the predetermined power.
Claim 27
Dependent Claim 23 words
The apparatus according to claim 22, wherein the apparatus further comprises displaying means for displaying the remaining power obtained by the calculating means.
Claim 28
Dependent Claim 22 words
The apparatus according to claim 22, wherein the signaling means includes light-display mans for representing the power condition of the first battery.
Claim 29
Dependent Claim 25 words
The apparatus according to claim 22, wherein the signaling means includes voice-outputting means for voice-outputting a signal representing the power condition of the first battery.
Claim 30
Dependent Claim 37 words
The apparatus according to claim 22, wherein the calculating means further includes means for calculating power consumption of the second battery from the detected voltages in the second battery, to obtain remaining power of the second battery.
Claim 31
Independent Claim 155 words
An apparatus for supplying power to a device, the apparatus comprising: a plurality of batteries, each battery having a terminal; detecting means for detecting voltages of the batteries; means for selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the device while conducting a positive current through the terminal of the first battery; means for selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the device, and for isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; and means for reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage.
Claim 32
Independent Claim 155 words
An apparatus for supplying power to a device, the apparatus comprising: a plurality of batteries, each battery having a terminal; detecting means for detecting voltages of the batteries; means for selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the device while conducting a positive current through the terminal of the first battery; means for selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the device, and for isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; and means for reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage.
Claim 33
Dependent Claim 162 words
An information processing system comprising: a computer system; a plurality of batteries for supplying power to the computer system, each battery having a terminal; detecting means for detecting voltages of the batteries; means for selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the computer system while conducting a positive current through the terminal of the first battery; means for selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the computer system, and for isolating the first battery from the computer system while conducting a current no less than zero through the terminal of the first battery; and means for reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage.
Claim 34
Dependent Claim 162 words
An information processing system comprising: a computer system; a plurality of batteries for supplying power to the computer system, each battery having a terminal; detecting means for detecting voltages of the batteries; means for selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the computer system while conducting a positive current through the terminal of the first battery; means for selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the computer system, and for isolating the first battery from the computer system while conducting a current no less than zero through the terminal of the first battery; and means for reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage.
Claim 35
Independent Claim 114 words
An apparatus for supplying power to a device, the apparatus comprising: a plurality of batteries, each battery having a terminal; detecting means for detecting voltages of the batteries; calculating means for calculating power consumption of the first battery from the detected voltages in the first battery, to obtain remaining power of the first battery; and means for selecting a second battery from the plurality of batteries when the remaining power in the first battery is less than a predetermined power, to supply power from the second battery to the device, and for isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery.
Claim 36
Independent Claim 114 words
An apparatus for supplying power to a device, the apparatus comprising: a plurality of batteries, each battery having a terminal; detecting means for detecting voltages of the batteries; calculating means for calculating power consumption of the first battery from the detected voltages in the first battery, to obtain remaining power of the first battery; and means for selecting a second battery from the plurality of batteries when the remaining power in the first battery is less than a predetermined power, to supply power from the second battery to the device, and for isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery.
Claim 37
Dependent Claim 157 words
In a system having a device and a plurality of batteries, each battery having a terminal, a method for supplying power to the device, the method comprising the steps of: detecting voltages of the plurality of batteries; selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the device while conducting a positive current through the terminal of the first battery; selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the device, and isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; and reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage.
Claim 38
Dependent Claim 157 words
In a system having a device and a plurality of batteries, each battery having a terminal, a method for supplying power to the device, the method comprising the steps of: detecting voltages of the plurality of batteries; selecting a first battery from the plurality of batteries when a detected voltage in the first battery is larger than a predetermined voltage, to supply power from the first battery to the device while conducting a positive current through the terminal of the first battery; selecting a second battery from the plurality of batteries when the detected voltage in the first battery is less than the predetermined voltage, to supply power from the second battery to the device, and isolating the first battery from the device while conducting a current no less than zero through the terminal of the first battery; and reselecting the first battery when the detected voltage in the second battery is less than the predetermined voltage.
Claim 39
Independent Claim 80 words
An apparatus for supplying power to a device, the apparatus comprising: first and second batteries for supplying power to the device; first detecting means for detecting a voltage of the first battery; second detecting means for detecting a voltage of the second battery; first signaling means, responsive to the first detecting means, for signaling a power condition of the first battery; and second signaling means, responsive to the second detecting means, for signaling a power condition of the second battery.
Claim 40
Independent Claim 80 words
An apparatus for supplying power to a device, the apparatus comprising: first and second batteries for supplying power to the device; first detecting means for detecting a voltage of the first battery; second detecting means for detecting a voltage of the second battery; first signaling means, responsive to the first detecting means, for signaling a power condition of the first battery; and second signaling means, responsive to the second detecting means, for signaling a power condition of the second battery.
Claim 41
Dependent Claim 25 words
The apparatus according to claim 31, wherein the first and second signaling means each includes a light emitting diode for signaling a low battery state.
Claim 42
Dependent Claim 24 words
The apparatus according to claim 31, wherein the first and second signaling means each includes a light emitting diode; and a speaker for signaling.
Claim 43
Dependent Claim 20 words
The apparatus according to claim 31, further comprising display means for displaying remaining energies of the first and second batteries;
Claim 44
Dependent Claim 78 words
An information processing system comprising: a computer system; first and second batteries for supplying power to the computer system; first detecting means for detecting a voltage to the first battery; second detecting means for detecting a voltage of the second battery; first signaling means, responsive to the first detecting means, for signaling a power condition of the first battery; and second signaling means, responsive to the second detecting means, for signaling a power condition of the second battery.
Claim 45
Dependent Claim 78 words
An information processing system comprising: a computer system; first and second batteries for supplying power to the computer system; first detecting means for detecting a voltage to the first battery; second detecting means for detecting a voltage of the second battery; first signaling means, responsive to the first detecting means, for signaling a power condition of the first battery; and second signaling means, responsive to the second detecting means, for signaling a power condition of the second battery.
Claim 46
Dependent Claim 25 words
The apparatus according to claim 35, wherein the first and second signaling means each includes a light emitting diode for signaling a low battery state.
Claim 47
Dependent Claim 22 words
The apparatus according to claim 35, wherein the first and second signaling means each includes a light emitting diode; and a speaker.
Claim 48
Dependent Claim 20 words
The apparatus according to claim 35, further comprising display means for displaying remaining energies of the first and second batteries.
Claim 49
Independent Claim 81 words
An apparatus for supplying power to a device, the apparatus comprising: first and second batteries for supplying power to the device; first detecting means for detecting a power dissipation of the first battery; second detecting means for detecting a power dissipation of the second battery; computing means, responsive to the first and second detecting means, for computing respective remaining capacities of the first and second batteries; and displaying means for displaying the respective remaining capacities of the first and second batteries.
Claim 50
Independent Claim 81 words
An apparatus for supplying power to a device, the apparatus comprising: first and second batteries for supplying power to the device; first detecting means for detecting a power dissipation of the first battery; second detecting means for detecting a power dissipation of the second battery; computing means, responsive to the first and second detecting means, for computing respective remaining capacities of the first and second batteries; and displaying means for displaying the respective remaining capacities of the first and second batteries.
Claim 51
Dependent Claim 15 words
The apparatus according to claim 39, wherein the computing means comprises a central processing unit.
Claim 52
Dependent Claim 28 words
The apparatus according to claim 39, wherein the displaying means includes means for displaying a ratio of remaining energies to initial energies of the first and second batteries.
Claim 53
Dependent Claim 79 words
An information processing system, comprising: a computer system; first and second batteries for supplying power to the computer system; first detecting means for detecting a power dissipation of the first battery; second detecting means for detecting a power dissipation of the second battery; computing means, responsive to the first and second detecting means, for computing remaining respective capacities of the first and second batteries; and displaying means for displaying the respective remaining capacities of the first and second batteries.
Claim 54
Dependent Claim 79 words
An information processing system, comprising: a computer system; first and second batteries for supplying power to the computer system; first detecting means for detecting a power dissipation of the first battery; second detecting means for detecting a power dissipation of the second battery; computing means, responsive to the first and second detecting means, for computing remaining respective capacities of the first and second batteries; and displaying means for displaying the respective remaining capacities of the first and second batteries.
Claim 55
Dependent Claim 15 words
The system according to claim 42, wherein the computing means comprises a central processing unit.
Claim 56
Dependent Claim 28 words
The system according to claim 42, wherein the displaying means includes means for displaying a ratio of remaining energies to initial energies of the first and second batteries.

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3.5 Years (Year 4) 1996-12-13 1997-06-14 1997-12-14 $2000.00 Window Closed / Lapsed
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