Patent US4866471A successfully refreshed from Google Patents.
US4866471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery check device for camera
Assignee: Canon Inc
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Filing: 1989-02-17
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Granted: 1989-09-12
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Expires: 2009-02-17
Abstract
Abstract A battery check device for a camera which is capable of accurately making a battery check without being affected by temperature comprises detecting means for detecting the service condition of a battery; comparison means for comparing the detection value obtained by the service condition detecting means with a reference value; informing means for informing the photographer of the service capacity of the battery in response to the output of the comparison means; and changing means for changing the reference value to change thereby the informing state of the informing means according to temperature.
Inventors
- 👤 Kiyoshi Ikuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:40
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/36; G01R31/3644; G01R31/3648; G03; G03B; G03B17/00; G03B17/18; G03B7/00; G03B7/26
Claims Analysis
Total Claims: 68
Claim 1
Independent Claim
104 words
A battery check device for a camera, comprising: (a) detecting means for detecting the service condition of a battery, said service condition detecting means including a counter means for counting the number of performances of the operation of said camera; (b) comparison means for comparing the detection value obtained by the service condition detecting means with a reference value; (c) informing means for informing the user of the service capacity of said battery in response to the output of said comparison means; and (d) changing means for changing the reference value to change thereby the informing state of said informing means according to temperature.
Claim 2
Dependent Claim
104 words
A battery check device for a camera, comprising: (a) detecting means for detecting the service condition of a battery, said service condition detecting means including a counter means for counting the number of performances of the operation of said camera; (b) comparison means for comparing the detection value obtained by the service condition detecting means with a reference value; (c) informing means for informing the user of the service capacity of said battery in response to the output of said comparison means; and (d) changing means for changing the reference value to change thereby the informing state of said informing means according to temperature.
Claim 3
Dependent Claim
31 words
A device according to claim 1, wherein said comparison means includes reference value setting means for setting as said reference value a value which corresponds to the life of said battery.
Claim 4
Dependent Claim
37 words
A device according to claim 1, wherein said comparison means includes a reference operable times setting means for setting as said reference value a predetermined number of times for which the operation of said camera is performable.
Claim 5
Dependent Claim
110 words
A battery check device for a camera, comprising: (a) detecting means for detecting the service condition of a battery; (b) comparison means for comparing the detecting value obtained by the service condition detecting means with a reference value, said comparison means including a reference value setting means for setting a value corresponding to a maximum performable number of times of the operation of said camera; (c) informing means for informing the user of the service capacity of said battery in response to the output of said comparison means; and (d) changing means for changing the reference value to change thereby the informing state of said informing means according to temperature.
Claim 6
Dependent Claim
110 words
A battery check device for a camera, comprising: (a) detecting means for detecting the service condition of a battery; (b) comparison means for comparing the detecting value obtained by the service condition detecting means with a reference value, said comparison means including a reference value setting means for setting a value corresponding to a maximum performable number of times of the operation of said camera; (c) informing means for informing the user of the service capacity of said battery in response to the output of said comparison means; and (d) changing means for changing the reference value to change thereby the informing state of said informing means according to temperature.
Claim 7
Dependent Claim
30 words
A device according to claim 4, wherein said informing means includes a remaining capacity informing means for informing the user of the remaining amount of the capacity of said battery.
Claim 8
Dependent Claim
24 words
A device according to claim 5, wherein said remaining capacity informing means includes display means for displaying stepwise the consumed degree of the battery.
Claim 9
Dependent Claim
14 words
A device according to claim 4, wherein said informing means includes a display means.
Claim 10
Dependent Claim
28 words
A device according to claim 4, wherein said changing means includes means for setting said reference value at a lower value in response to a rise of temperature.
Claim 11
Dependent Claim
15 words
A device according to claim 4, wherein said changing means includes an analog changing circuit.
Claim 12
Dependent Claim
15 words
A device according to claim 4, wherein said changing means includes a digital changing circuit.
Claim 13
Dependent Claim
23 words
A device according to claim 4 wherein said service condition detecting means including voltage detecting means for detecting the voltage of said battery.
Claim 14
Dependent Claim
43 words
A device according to claim 4, wherein said comparison means includes reference value setting means for setting a value corresponding to a value at which a warning is to be given with regard to an approaching end of the life of said battery.
Claim 15
Dependent Claim
24 words
A device according to claim 4, wherein said comparison means includes reference voltage setting means for setting a predetermined voltage as said reference value.
Claim 16
Dependent Claim
27 words
A device according to claim 4, wherein said informing means includes warning means for giving a warning about an approaching end of the life of said battery.
Claim 17
Dependent Claim
37 words
A device according to claim 4, wherein said changing means includes means for setting said reference value at a higher value in response to an increase in the number of performances of the operation of said camera.
Claim 18
Dependent Claim
104 words
A battery check device for an apparatus comprising: (a) detecting means for detecting the service condition of a battery, said service condition detecting means including a counter means for counting the number of performances of the operation of said apparatus; (b) comparison means for comparing the detection value obtained by the service condition detecting means with a reference value; (c) informing means for informing the user of the service capacity of said battery in response to the output of said comparison means; and (d) changing means for changing the reference value to change thereby the informing state of said informing means according to temperature.
Claim 19
Dependent Claim
104 words
A battery check device for an apparatus comprising: (a) detecting means for detecting the service condition of a battery, said service condition detecting means including a counter means for counting the number of performances of the operation of said apparatus; (b) comparison means for comparing the detection value obtained by the service condition detecting means with a reference value; (c) informing means for informing the user of the service capacity of said battery in response to the output of said comparison means; and (d) changing means for changing the reference value to change thereby the informing state of said informing means according to temperature.
Claim 20
Dependent Claim
31 words
A device according to claim 16, wherein said comparison means includes reference value setting means for setting as said reference value a value which corresponds to the life of said battery.
Claim 21
Dependent Claim
37 words
A device according to claim 16, wherein said comparison means includes a reference operable times setting means for setting as said reference value a predetermined number of times for which the operation of said camera is performable.
Claim 22
Dependent Claim
110 words
A battery check device for an apparatus comprising: (a) detecting means for detecting the service condition of a battery; (b) comparison means for comparing the detection value obtained by the service condition detecting means with a reference value, said comparison means including a reference value setting means for setting a value corresponding to a maximum performable number of times of the operation of said apparatus; (c) informing means for informing the user of the service capacity of said battery in response to the output of said comparison means; and (d) changing means for changing the reference value to change thereby the informing state of said informing means according to temperature.
Claim 23
Dependent Claim
110 words
A battery check device for an apparatus comprising: (a) detecting means for detecting the service condition of a battery; (b) comparison means for comparing the detection value obtained by the service condition detecting means with a reference value, said comparison means including a reference value setting means for setting a value corresponding to a maximum performable number of times of the operation of said apparatus; (c) informing means for informing the user of the service capacity of said battery in response to the output of said comparison means; and (d) changing means for changing the reference value to change thereby the informing state of said informing means according to temperature.
Claim 24
Dependent Claim
30 words
A device according to claim 19, wherein said informing means includes a remaining capacity informing means for informing the user of the remaining amount of the capacity of said battery.
Claim 25
Dependent Claim
24 words
A device according to claim 20, wherein said remaining capacity informing means includes display means for displaying stepwise the consumed degree of the battery.
Claim 26
Dependent Claim
14 words
A device according to claim 19, wherein said informing means includes a display means.
Claim 27
Dependent Claim
28 words
A device according to claim 19, wherein said changing means includes means for setting said reference value at a lower value in response to a rise of temperature.
Claim 28
Dependent Claim
15 words
A device according to claim 19, wherein said changing means includes an analog changing circuit.
Claim 29
Dependent Claim
15 words
A device according to claim 19, wherein said changing means includes a digital changing circuit.
Claim 30
Dependent Claim
17 words
A device according to claim 19 including voltage detecting means for detecting the voltage of said battery.
Claim 31
Dependent Claim
43 words
A device according to claim 19, wherein said comparison means includes reference value setting means for setting a value corresponding to a value at which a warning is to be given with regard to an approaching end of the life of said battery.
Claim 32
Dependent Claim
24 words
A device according to claim 19, wherein said comparison means includes reference voltage setting means for setting a predetermined voltage as said reference value.
Claim 33
Dependent Claim
27 words
A device according to claim 19, wherein said informing means includes warning means for giving a warning about an approaching end of the life of said battery.
Claim 34
Dependent Claim
37 words
A device according to claim 19, wherein said changing means includes means for setting said reference value at a higher value in response to an increase in the number of performances of the operation of said apparatus.
Claim 35
Dependent Claim
73 words
A battery check device for a camera, comprising: (A) counting means for counting the number of performances of operation of said camera, (b) indication means for indicating the service capacity of said battery in response to the output of said counting means, said indicating means being arranged to indicate the service capacity of the battery according to temperature as if said counting means output a different count value from its actual count value.
Claim 36
Dependent Claim
73 words
A battery check device for a camera, comprising: (A) counting means for counting the number of performances of operation of said camera, (b) indication means for indicating the service capacity of said battery in response to the output of said counting means, said indicating means being arranged to indicate the service capacity of the battery according to temperature as if said counting means output a different count value from its actual count value.
Claim 37
Dependent Claim
20 words
A device according to claim 31, wherein said indicating means includes means for displaying the service capacity of the battery.
Claim 38
Dependent Claim
29 words
A device according to claim 31, wherein said indicating means includes comparison means for comparing the output of the counting means with a reference value corresponding to the temperature.
Claim 39
Dependent Claim
34 words
A device according to claim 33, wherein said comparison means includes a reference value setting means for setting a value corresponding to a maximum performable number of times of the operation of said camera.
Claim 40
Dependent Claim
37 words
A device according to claim 33, wherein said comparison means includes a reference operable times setting means for setting as said reference value a predetermined number of times for which the operation of said camera is performable.
Claim 41
Dependent Claim
22 words
A device according to claim 33, wherein said indicating means includes changing means for changing a reference value in accordance with temperature.
Claim 42
Dependent Claim
15 words
A device according to claim 33, wherein said comparison means includes an analog comparison circuit.
Claim 43
Dependent Claim
15 words
A device according to claim 33, wherein said comparison means includes a digital comparison circuit.
Claim 44
Dependent Claim
33 words
A device according to claim 31, wherein said indicating means includes means for indicating the service capacity of the battery as if the counting means counts an increased count as the temperature lowers.
Claim 45
Dependent Claim
57 words
A battery check device for a camera, comprising: (A) counting means for counting the number of performances of operation of said camera; and (B) indicating means for indicating the service capacity of a battery, said indicating means changing a reference value for judging the service capacity of the battery according to the output of the counting means.
Claim 46
Dependent Claim
57 words
A battery check device for a camera, comprising: (A) counting means for counting the number of performances of operation of said camera; and (B) indicating means for indicating the service capacity of a battery, said indicating means changing a reference value for judging the service capacity of the battery according to the output of the counting means.
Claim 47
Dependent Claim
36 words
A device according to claim 40, wherein said indicating means includes means for setting said reference value at a higher value in response to an increase in the number of performances of operation of said camera.
Claim 48
Dependent Claim
20 words
A device according to claim 40, wherein said indicating means includes means for displaying the service capacity of the battery.
Claim 49
Dependent Claim
24 words
A device according to claim 40, wherein said indicating means includes comparison means for comparing the output of the battery with the reference value.
Claim 50
Dependent Claim
25 words
A device according to claim 42, wherein said display means includes means for warning that the service capacity of the battery is approaching a limit.
Claim 51
Dependent Claim
52 words
A device according to claim 44, wherein said indicating means includes means for maintaining the number of performances of operation of the camera always at an almost constant number during the period from when the display means produces the warning until when the service capacity of the battery actually reaches the limit.
Claim 52
Dependent Claim
73 words
A battery check device for an apparatus, comprising: (A) counting means for counting the number of performances of operation of said apparatus, (B) indication means for indicating the service capacity of said battery in response to the output of said counting means, said indicating means being arranged to indicate the service capacity of the battery according to temperature as if said counting means output a different count value from its actual count value.
Claim 53
Dependent Claim
73 words
A battery check device for an apparatus, comprising: (A) counting means for counting the number of performances of operation of said apparatus, (B) indication means for indicating the service capacity of said battery in response to the output of said counting means, said indicating means being arranged to indicate the service capacity of the battery according to temperature as if said counting means output a different count value from its actual count value.
Claim 54
Dependent Claim
20 words
A device according to claim 46, wherein said indicating means includes means for displaying the service capacity of the battery.
Claim 55
Dependent Claim
29 words
A device according to claim 46, wherein said indicating means includes comparison means for comparing the output of the counting means with a reference value corresponding to the temperature.
Claim 56
Dependent Claim
34 words
A device according to claim 48, wherein said comparison means includes a reference value setting means for setting a value corresponding to a maximum performable number of times of the operation of said apparatus.
Claim 57
Dependent Claim
37 words
A device according to claim 48, wherein said comparison means includes a reference operarable times setting means for setting as said reference value a predetermined number of times for which the operation of said apparatus is performable.
Claim 58
Dependent Claim
22 words
A device according to claim 48, wherein said indicating means includes changing means for changing a reference value in accordance with temperature.
Claim 59
Dependent Claim
15 words
A device according to claim 48, wherein said comparison means includes an analog comparison circuit.
Claim 60
Dependent Claim
15 words
A device according to claim 48, wherein said comparison means includes a digital comparison circuit.
Claim 61
Dependent Claim
31 words
A device according to claim 46, wherein said means includes means for indicating the service of the battery as if the counting means counts an increased count as the temperature lowers.
Claim 62
Dependent Claim
57 words
A battery check device for an apparatus, comprising: (A) counting means for counting the number of performances of operation of said apparatus; and (B) indicating means for indicating the service capacity of a battery, said indicating means changing a reference value for judging the service capacity of the battery accordingly to the output of the counting means.
Claim 63
Dependent Claim
57 words
A battery check device for an apparatus, comprising: (A) counting means for counting the number of performances of operation of said apparatus; and (B) indicating means for indicating the service capacity of a battery, said indicating means changing a reference value for judging the service capacity of the battery accordingly to the output of the counting means.
Claim 64
Dependent Claim
36 words
A device according to claim 55, wherein said indicating means includes means for setting said reference value at a higher value in response to an increase in the number of performances of operation of said apparatus.
Claim 65
Dependent Claim
20 words
A device according to claim 55, wherein said indicating means includes means for displaying the service capacity of the battery.
Claim 66
Dependent Claim
24 words
A device according to claim 55, wherein said indicating means includes comparison means for comparing the output of the battery with the reference value.
Claim 67
Dependent Claim
25 words
A device according to claim 57, wherein said display means includes means for warning that the service capacity of the battery is approaching a limit.
Claim 68
Dependent Claim
52 words
A device according to claim 59, wherein said indicating means includes means for maintaining the number of performances of operation of the apparatus always at an almost constant number during the period from when the display means produces the warning until when the service capacity of the battery actually reaches the limit.
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USPTO Annuity & Maintenance Windows
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|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |