EP0432689A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Remaining-amount-of-battery detecting device
Assignee: Canon Inc
•
Filing: 1990-12-10
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Granted: —
•
Expires: 2010-12-10
Abstract
Abstract A remaining-amount-of-battery detecting device according to the present invention detects the remaining amount of battery power. The device is arranged to measure the open-circuit voltage of a battery and detect the remaining amount of battery power on the basis of the measured open-circuit voltage of the battery, so that it is possible to accurately detect the remaining amount of battery power.
Inventors
- 👤 Koji Takahashi
- 👤 Isao Harigaya
- 👤 Hiroyuki Takimoto
- 👤 Kazumitsu Tobe
- 👤 Takayuki Saeki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 15:35
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/36; G01R31/3644; G01R31/3648; G01R31/374; G01R31/385; G01R31/386
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
51 words
A remaining-amount-of-battery detecting device for detecting a remaining amount of a battery, comprising: (A) measuring means for measuring an open-circuit voltage of the battery; and (B) detecting means for detecting the remaining amount of the battery on the basis of the open-circuit voltage of the battery measured by said measuring means.
Claim 2
Dependent Claim
74 words
A remaining-amount-of-battery detecting device according to claim 1, wherein said detecting means includes: (A) data holding means for holding data indicative of the relation between the open-circuit voltage of the battery and the remaining amount of the battery; and (B) comparing and detecting means for detecting the remaining amount of the battery by comparing the open-circuit voltage of the battery measured by said measuring means with the data held in said data holding means.
Claim 3
Dependent Claim
68 words
A remaining-amount-of-battery detecting device according to claim 1, wherein said measuring means includes: (A) characteristic measuring means for measuring each output which is provided by the battery when a respective one of loads of different kinds is connected to the battery; and (B) arithmetic means for calculating the open-circuit voltage of the battery on the basis of the output of the battery measured by said characteristic measuring means.
Claim 4
Dependent Claim
25 words
A remaining-amount-of-battery detecting device according to claim 1, further comprising display means for displaying the remaining amount of the battery detected by said detecting means.
Claim 5
Dependent Claim
23 words
A remaining-amount-of-battery detecting device according to claim 4, wherein said display means is arranged to display a remaining service time of the battery.
Claim 6
Dependent Claim
86 words
A remaining-amount-of-battery detecting device for detecting a remaining amount of a battery, comprising: (A) measuring means for measuring an open-circuit voltage of the battery; (B) remaining-amount-value-signal outputting means for outputting a signal indicative of a remaining-amount value of the battery corresponding to the open-circuit voltage detected by said measuring means; and (C) correcting means for correcting the remaining-amount value of the battery indicated by the signal outputted by said remaining-amount-value-signal outputting means in accordance with the amount of variation of the open-circuit voltage of the battery.
Claim 7
Dependent Claim
68 words
A remaining-amount-of-battery detecting device according to claim 6, wherein said measuring means includes: (A) characteristic measuring means for measuring each output which is provided by the battery when a respective one of loads of different kinds is connected to the battery; and (B) arithmetic means for calculating the open-circuit voltage of the battery on the basis of the output of the battery measured by said characteristic measuring means.
Claim 8
Dependent Claim
75 words
A remaining-amount-of-battery detecting device according to claim 6, wherein said remaining-amount-value-signal outputting means includes: (A) data holding means for holding data indicative of the relation between the open-circuit voltage of the battery and the remaining amount of the battery; and (B) comparing and detecting means for detecting the remaining amount of the battery by comparing the open-circuit voltage of the battery measured by said measuring means with the data held in said data holding means.
Claim 9
Dependent Claim
25 words
A remaining-amount-of-battery detecting device according to claim 6, further comprising display means for displaying the remaining-amount value of the battery corrected by said correcting means.
Claim 10
Dependent Claim
23 words
A remaining-amount-of-battery detecting device according to claim 9, wherein said display means is arranged to display a remaining service time of the battery.
Claim 11
Dependent Claim
121 words
A remaining-amount-of-battery detecting device for detecting a remaining amount of a battery, comprising: (A) temperature compensating means for effecting temperature compensation of a plurality of outputs, each of which is provided by the battery when a respective one of different loads is connected to the battery; (B) open-circuit-voltage detecting means for detecting an open-circuit voltage of the battery on the basis of said plurality of outputs of the battery which are temperature-compensated by said temperature compensating means; and (C) remaining-amount-of-battery detecting means for detecting the remaining amount of the battery by comparing the open-circuit voltage detected by said open-circuit-voltage detecting means with data indicative of the relation between the open-circuit voltage of the battery and the remaining amount of the battery.
Claim 12
Dependent Claim
76 words
A remaining-amount-of-battery detecting device according to claim 11, wherein said remaining-amount-of-battery detecting means includes: (A) data holding means for holding data indicative of the relation between the open-circuit voltage of the battery and the remaining amount of the battery; and (B) comparing and detecting means for detecting the remaining amount of the battery by comparing the open-circuit voltage of the battery detected by said open-circuit-voltage detecting means with the data held in said data holding means.
Claim 13
Dependent Claim
26 words
A remaining-amount-of-battery detecting device according to claim 11, further comprising display means for displaying the remaining amount of the battery detected by said remaining-amount-of-battery detecting means.
Claim 14
Dependent Claim
23 words
A remaining-amount-of-battery detecting device according to claim 13, wherein said display means is arranged to display a remaining service time of the battery.
Claim 15
Dependent Claim
100 words
A remaining-amount-of-battery detecting device for detecting a remaining amount of a battery, comprising: (A) open-circuit-voltage calculating means, including a plurality of kinds of operating states having different load resistances, for calculating an open-circuit voltage of the battery from outputs of the battery which are detected after and before a change from one operating mode to another; and (B) remaining-amount-of-battery detecting means for finding the remaining amount of the battery by comparing the open-circuit voltage calculated by said open-circuit-voltage calculating means with data indicative of the relation between the open-circuit voltage of the battery and the remaining amount of the battery.
Claim 16
Dependent Claim
76 words
A remaining-amount-of-battery detecting device according to claim 15, wherein said remaining-amount-of-battery detecting means includes: (A) data holding means for holding data indicative of the relation between the open-circuit voltage of the battery and the remaining amount of the battery; and (B) comparing and detecting means for detecting the remaining amount of the battery by comparing the open-circuit voltage of the battery calculated by said open-circuit-voltage calculating means with the data held in said data holding means.
Claim 17
Dependent Claim
26 words
A remaining-amount-of-battery detecting device according to claim 15, further comprising display means for displaying the remaining amount of the battery detected by said remaining-amount-of-battery detecting means
Claim 18
Dependent Claim
23 words
A remaining-amount-of-battery detecting device according to claim 17, wherein said display means is arranged to display a remaining service time of the battery.
Claim 19
Dependent Claim
70 words
A remaining-amount-of-battery detecting device according to claim 15, wherein said plurality of kinds of operating states include at least a stop mode, a recording-pause mode and a recording mode which are operable in either of recording and reproducing apparatus, said open-circuit-voltage calculating means being arranged to calculate the open-circuit voltage of the battery from outputs of the battery detected before and after a change from one operating state to another.
Claim 20
Dependent Claim
101 words
A remaining-amount-of-battery detecting device for detecting a remaining amount of a battery, comprising: (A) measuring means for measuring an output of the battery; (B) memory means for storing data relative to the discharge characteristics of a plurality of kinds of batteries; and (C) detecting means for identifying the kind of battery in use on the basis of a measurement result provided by said measuring means and said data stored in said memory means, and detecting a remaining-amount value of the battery on the basis of data corresponding to the battery in use from among said data stored in said memory means.
Claim 21
Dependent Claim
22 words
A remaining-amount-of-battery detecting device according to claim 20, wherein said measuring means is arranged to measure an open-circuit voltage of the battery.
Claim 22
Dependent Claim
36 words
A remaining-amount-of-battery detecting device according to claim 21, wherein said memory means stores data indicative of the relation between the open-circuit voltage of each of various kinds of batteries and the remaining amount of the battery.
Claim 23
Dependent Claim
89 words
A remaining-amount-of-battery detecting device according to claim 21, wherein said measuring means is further arranged to measure the amount of variation of the open-circuit voltage of the battery, said detecting means being arranged to identify the kind of battery in use on the basis of the amount of variation of the open-circuit voltage of the battery measured by said measuring means, and detect a remaining-amount value of the battery on the basis of data corresponding to the battery in use from among said data stored in said memory means.
Claim 24
Dependent Claim
25 words
A remaining-amount-of-battery detecting device according to claim 20, further comprising display means for displaying the remaining amount of the battery detected by said detecting means.
Claim 25
Dependent Claim
23 words
A remaining-amount-of-battery detecting device according to claim 24, wherein said display means is arranged to display a remaining service time of the battery.
Claim 26
Dependent Claim
108 words
A remaining-amount-of-battery detecting device for detecting a remaining amount of a battery, comprising: (A) remaining-amount detecting means including a plurality of kinds of operating modes for detecting the remaining amount of the battery on the basis of a variation of the output of the battery with a change from one operating mode to another; (B) consumed-amount detecting means for detecting a consumed amount of the battery if the same operating mode continues for a predetermined time; and (C) correcting means for correcting the remaining amount of the battery detected by said remaiming-amount detecting means by using the consumed amount of the battery detected by said consumed-amount detecting means.
Claim 27
Dependent Claim
109 words
A remaining-amount-of-battery detecting device according to claim 26, wherein said remaining-amount detecting means includes: (A) open-circuit-voltage detecting means for detecting an open-circuit voltage of the battery on the basis of a variation of the output of the battery with a change from one operating mode to another; (B) data holding means for holding data indicative of the relation between the open-circuit voltage of the battery and the remaining amount of the battery; and (C) comparing and detecting means for detecting the remaining amount of the battery by comparing the open-circuit voltage of the battery detected by said open-circuit-voltage detecting means with the data held in said data holding means.
Claim 28
Dependent Claim
25 words
A remaining-amount-of-battery detecting device according to claim 26, further comprising display means for displaying the remaining amount of the battery corrected by said correcting means.
Claim 29
Dependent Claim
23 words
A remaining-amount-of-battery detecting device according to claim 28, wherein said display means is arranged to display a remaining service time of the battery.
Claim 30
Dependent Claim
95 words
A remaining-amount-of-battery detecting device for detecting a remaining amount of a battery, comprising: (A) remaining-amount detecting means for detecting the remaining amount of the battery by comparing a previously memorized characteristic of the remaining amount of the battery with a measured value of the battery; and (B) identifying means for determining whether a power source is a battery on the basis of the remaining amount of the power source in use, detected by said remaining-amount detecting means, and inhibiting a detecting operation of said remaining-amount detecting means if the power source is not a battery.
Claim 31
Dependent Claim
115 words
A remaining-amount-of-battery detecting device according to claim 30, wherein said remaining-amount detecting means includes: (A) open-circuit-voltage detecting means including a plurality of operating modes for detecting an open-circuit voltage of the battery on the basis of a variation of the output of the battery with a change from one operating mode to another; (B) data holding means for holding data indicative of the relation between the open-circuit voltage of the battery and the remaining amount of the battery; and (C) comparing and detecting means for detecting the remaining amount of the battery by comparing the open-circuit voltage of the battery detected by said open-circuit-voltage detecting means with the data held in said data holding means.
Claim 32
Dependent Claim
26 words
A remaining-amount-of-battery detecting device according to claim 30, further comprising display means for displaying the remaining amount of the battery detected by said remaining-amount detecting means.
Claim 33
Dependent Claim
23 words
A remaining-amount-of-battery detecting device according to claim 32, wherein said display means is arranged to display a remaining service time of the battery.
Claim 34
Dependent Claim
40 words
A remaining-amount-of-battery detecting device according to claim 30, wherein said identifying means is arranged to determine whether a power source in use is a battery on the basis of the amount of variation of the remaining amount of the battery.
References Cited (Backward Citations)
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