US5517277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery pack
Assignee: Nikon Corp
•
Filing: 1994-12-09
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Granted: 1996-05-14
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Expires: 2014-12-09
Abstract
Abstract A battery pack capable of being installed in an electric equipment comprises a first battery, an integrating circuit for integrating at least the amount of discharge from the first battery, and a second battery for supplying power to the integrating circuit, which is arranged separatly from the first battery.
Inventors
- 👤 Tetsuro Goto
- 👤 Hiroshi Hasegawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:55
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/26; H; H02; H02J; H02J7/00; H02J7/60; H02J7/63; H02J7/80; H02J7/82
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
53 words
A battery pack capable of being installed in an electric equipment, including the following: a first battery; an integrating circuit for integrating at least the amount of discharge from said first battery; and a second battery for supplying power to said integrating circuit, said second battery being provided separately from said first battery.
Claim 2
Dependent Claim
53 words
A battery pack capable of being installed in an electric equipment, including the following: a first battery; an integrating circuit for integrating at least the amount of discharge from said first battery; and a second battery for supplying power to said integrating circuit, said second battery being provided separately from said first battery.
Claim 3
Dependent Claim
14 words
A battery pack according to claim 1, wherein said electric equipment is a camera.
Claim 4
Dependent Claim
20 words
A battery pack according to claim 1, wherein said battery pack is attachable to and detachable from said electric equipment.
Claim 5
Dependent Claim
36 words
A battery pack according to claim 1, wherein said first battery is a secondary battery, and said integrating circuit is provided with a function to integrate the amount of charging with respect to said first battery.
Claim 6
Dependent Claim
15 words
A battery pack according to claim 1, wherein said second battery is a primary battery.
Claim 7
Dependent Claim
34 words
A battery pack according to claim 1, wherein said first battery is a secondary battery, and said second battery is a secondary battery, and also, it is charged when said first battery is charged.
Claim 8
Dependent Claim
27 words
A battery pack according to claim 1, further including: display means for displaying the battery capacitance of said first battery by the output of said integrating circuit.
Claim 9
Dependent Claim
29 words
A battery pack according to claim 7, wherein said display means displays the result of integration of said first battery in accordance with the output of said integrating circuit.
Claim 10
Dependent Claim
19 words
A battery pack according to claim 7, wherein said display means displays the battery capacitance of said second battery.
Claim 11
Dependent Claim
26 words
A battery pack according to claim 7, wherein said display means displays at least either one of the battery capacitances of said first and second batteries.
Claim 12
Dependent Claim
79 words
A battery pack capable of being installed in an electric equipment, including the following: a first battery; an integrating circuit for integrating at least the amount of discharge from said first battery; a voltage detection circuit for generating a first signal by detecting the voltage of said first battery; a switching circuit for releasing the connection between said first battery and said integrating circuit when said first signal of said voltage detection circuit becomes lower than a predetermined voltage.
Claim 13
Dependent Claim
79 words
A battery pack capable of being installed in an electric equipment, including the following: a first battery; an integrating circuit for integrating at least the amount of discharge from said first battery; a voltage detection circuit for generating a first signal by detecting the voltage of said first battery; a switching circuit for releasing the connection between said first battery and said integrating circuit when said first signal of said voltage detection circuit becomes lower than a predetermined voltage.
Claim 14
Dependent Claim
14 words
A battery pack according to claim 11, wherein said electric equipment is a camera.
Claim 15
Dependent Claim
20 words
A battery pack according to claim 11, wherein said battery pack is attachable to and detachable from said electric equipment.
Claim 16
Dependent Claim
21 words
A battery pack according to claim 11, wherein said switching circuit is provided between said first battery and said integrating circuit.
Claim 17
Dependent Claim
37 words
A battery pack according to claim 11, wherein said first battery is a secondary battery, and said integrating circuit is provided further with a function to integrate the amount of charging with respect to said first battery.
Claim 18
Dependent Claim
31 words
A battery pack according to claim 11, further including the following: display means for displaying the battery capacitance of said first battery in accordance with the output of said integrating circuit.
Claim 19
Dependent Claim
35 words
A battery pack according to claim 16, wherein said display means is provided with a function to notify releasing whereby to notify that the connection between said first battery and said integrating circuit is released.
References Cited (Backward Citations)
JPH0444633A
Cited
JPH0444632A
Cited
US5164761A
Cited
US5406266A
Cited
JPH05249537A
Cited
US5455499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-05-14 | 1999-11-13 | 2000-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-14 | 2003-11-13 | 2004-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-14 | 2007-11-13 | 2008-05-14 | $7700.00 | Window Closed / Lapsed |