EP0622883A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Communication apparatus and power supply device therefor
Assignee: Canon Inc
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Filing: 1994-04-26
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Granted: —
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Expires: 2014-04-26
Abstract
Abstract A power supply device for a communication apparatus includes a main power supply for supplying electric power to respective units of a communication apparatus main body, a main power supply control unit for ON/OFF-controlling the main power supply, and a battery for supplying electric power to the main power supply control unit. When the main power supply is ON, the main power supply control unit receives power supply from the main power supply. When the main power supply is OFF, the main power supply control unit receives power supply from the battery.
Inventors
- 👤 Yuji C/O Canon Kabushiki Kaisha Kurosawa
- 👤 Koichi C/O Canon Kabushiki Kaisha Abe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 20:30
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00885; H04N1/23; H02; H02J; H02J7/00; H02J7/34; H02J7/35; H02J9/00; H02J9/04; H02J9/06; H02J9/061; H04N1/00888; H04N1/00896; H04N1/00901; H04N1/32; H04N1/32496; H04N1/327; H04N1/32765; H04N1/32767; H04N1/32769; Y; Y02; Y02B; Y02B10/00; Y02B10/70
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
93 words
A power supply device for a communication apparatus, comprising: a main power supply for supplying electric power to respective units of a communication apparatus main body; main power supply control means for ON/OFF-controlling said main power supply; and a battery for supplying electric power to said main power supply control means, wherein when said main power supply is ON, said main power supply control means receives power supply from said main power supply, and when said main power supply is OFF, said main power supply control means receives power supply from said battery.
Claim 2
Dependent Claim
13 words
A device according to claim 1, wherein said battery comprises a secondary battery.
Claim 3
Dependent Claim
13 words
A device according to claim 1, wherein said battery comprises a solar cell.
Claim 4
Dependent Claim
15 words
A device according to claim 2, wherein said main power supply charges said secondary battery.
Claim 5
Dependent Claim
22 words
A device according to claim 4, wherein said main power supply charges said secondary battery when said main power supply is ON.
Claim 6
Dependent Claim
62 words
A device according to claim 1, wherein said battery comprises a secondary battery and a solar cell, and while said solar cell outputs electric power, said main power supply control means receives power supply from said solar cell, and while said solar cell does not output any electric power, said main power supply control means receives power supply from said secondary battery.
Claim 7
Dependent Claim
14 words
A device according to claim 6, wherein said solar cell charges said secondary battery.
Claim 8
Dependent Claim
48 words
A device according to claim 7, wherein when said main power supply is ON, said secondary battery is charged by said main power supply, and when said main power supply is OFF, and said solar cell outputs electric power, said secondary battery is charged by said solar cell.
Claim 9
Dependent Claim
31 words
A device according to claim 1, wherein said main power supply control means turns on said main power supply in accordance with an input start signal or to charge said battery.
Claim 10
Dependent Claim
24 words
A device according to claim 9, wherein the start signal is input to main body control means for controlling said communication apparatus main body.
Claim 11
Dependent Claim
51 words
A device according to claim 9 or 10, wherein the start signal is one of a ringing signal from a line, a key input signal of operation means operated by an operator, a document detect signal, an input signal of a communication start key, and an off-hook signal of a handset.
Claim 12
Dependent Claim
38 words
A device according to claim 1, wherein said main power supply control means turns off said main power supply on the basis of a control signal from main body control means for controlling said communication apparatus main body.
Claim 13
Dependent Claim
34 words
A device according to claim 12, wherein the control signal is output from said main body control means to said main power supply control means in accordance with end of charging of said battery.
Claim 14
Dependent Claim
40 words
A device according to claim 13, wherein said battery comprises a secondary battery, and the end of charging of said secondary battery is detected when a measurement value of a timer for measuring a charging time reaches a predetermined value.
Claim 15
Independent Claim
25 words
A device according to any one of claims 1 to 10 and 12 to 14, wherein said main power supply comprises a switching power supply.
Claim 16
Independent Claim
50 words
A device according to any one of claims 2, 4 to 8, 13, and 14, wherein said main power supply control means comprises a timer, and starts said main power supply to charge said secondary battery when said main power supply is not started for a predetermined period of time.
Claim 17
Independent Claim
24 words
A device according to any one of claims 1 to 10 and 12 to 14, wherein said communication apparatus comprises an image communication apparatus.
Claim 18
Dependent Claim
15 words
A device according to claim 17, wherein said image communication apparatus comprises a facsimile apparatus.
Claim 19
Dependent Claim
76 words
A power supply device comprising: a main power supply for supplying electric power to respective units of an apparatus main body; and main power supply control means for ON/OFF-controlling said main power supply, wherein when an AC input to said main power supply is started, said main power supply is automatically started for a predetermined period of time required for initializing said main power supply control means, and supplies electric power to said main power supply.
Claim 20
Dependent Claim
21 words
A device according to claim 19, further comprising: a battery for supplying electric power to said main power supply control means.
Claim 21
Dependent Claim
13 words
A device according to claim 20, wherein said battery comprises a secondary battery.
Claim 22
Dependent Claim
13 words
A device according to claim 20, wherein said battery comprises a solar cell.
Claim 23
Dependent Claim
55 words
A device according to claim 21, wherein when said main power supply is ON, said secondary battery is charged by said main power supply, and said main power supply control means monitors a voltage of said secondary battery and turns off said main power supply in accordance with end of charging of said secondary battery.
Claim 24
Dependent Claim
56 words
A device according to claim 21, wherein when said main power supply is ON, said secondary battery is charged by said main power supply, and said main power supply control means measures a charging time of said secondary battery and turns off said main power supply when the charging time reaches a predetermined period of time.
Claim 25
Independent Claim
25 words
A device according to any one of claims 19 to 24, wherein said power supply device is a power supply device for a communication apparatus.
Claim 26
Dependent Claim
15 words
A device according to claim 25, wherein said communication apparatus comprises an image communication apparatus.
Claim 27
Dependent Claim
15 words
A device according to claim 26, wherein said image communication apparatus comprises a facsimile apparatus.
Claim 28
Dependent Claim
85 words
A power supply device comprising: a main power supply for supplying electric power to respective units of an apparatus main body; main power supply control means for ON/OFF-controlling said main power supply; and a secondary battery for supply electric power to said main power supply control means, wherein said main power supply control means monitors a voltage from said secondary battery, and turns on said main power supply on the basis of the voltage from said secondary battery so as to charge said secondary battery.
Claim 29
Dependent Claim
20 words
A device according to claim 28, wherein said power supply device is a power supply device for a communication apparatus.
Claim 30
Dependent Claim
15 words
A device according to claim 29, wherein said communication apparatus comprises an image communication apparatus.
Claim 31
Dependent Claim
15 words
A device according to claim 30, wherein said image communication apparatus comprises a facsimile apparatus.
Claim 32
Dependent Claim
63 words
A power supply device comprising: a main power supply for supplying electric power to respective units of an apparatus main body; and main power supply control means for ON/OFF-controlling said main power supply, wherein said main power supply is turned on when a signal is input from said main power supply control means, and is turned off when the signal is not input.
Claim 33
Dependent Claim
133 words
A power supply device comprising: a main power supply for supplying electric power to respective units of an apparatus main body; main power supply control means for ON/OFF-controlling said main power supply; a secondary battery for supplying electric power to said main power supply control means, wherein when said main power supply is ON, said main power supply control means receives power supply from said main power supply, and said secondary battery is charged by said main power supply, and when said main power supply is OFF, said main power supply control means receives power supply from said secondary battery, said device further comprises a timer for measuring a time, and said main power supply control means starts said main power supply when the time measured by said timer reaches a predetermined time.
Claim 34
Dependent Claim
120 words
A power supply device comprising: a main power supply for supplying electric power to respective units of an apparatus main body; main power supply control means for ON/OFF-controlling said main power supply; a battery for supplying electric power to said main power supply control means, wherein when said main power supply is ON, said main power supply control means receives power supply from said main power supply, and when said main power supply is OFF, said main power supply control means receives power supply from said battery, said device further comprises interface means with an external terminal, and when an operation request is supplied from said external terminal, said main power supply control means turns on said main power supply.
Claim 35
Dependent Claim
45 words
A device according to claim 34, wherein said main power supply control means switches an operation mode between a first mode for preferentially executing an operation of said apparatus main body, and a second mode for preferentially executing an operation requested by said external terminal.
Claim 36
Dependent Claim
70 words
A device according to claim 35, wherein when the operation request is supplied from said external terminal in the first mode, said main power supply control means switches the operation mode from the first mode to the second mode to execute an operation requested by said external terminal, and switches the operation mode from the second mode to the first mode when the operation requested by said external terminal ends.
References Cited (Backward Citations)
No citation records indexed.
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