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US5460901A
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US
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Battery identification
Assignee: Nokia Oyj
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Filing: 1993-09-22
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Granted: 1995-10-24
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Expires: 2013-09-22
Abstract
Abstract A battery (1) has identification means for enabling an apparatus e.g. a radio telephone or a battery charger, connected to the battery to determine a plurality of battery parameters e.g. temperature and battery capacity using a single measurement, so that, for example, a battery charger can adopt the correct charging regime for the battery type. The identification means is provided by a constant current source (I) and one or more solid state components (D1-D3) having p-n junctions e.g. diodes or transistors coupled in series or in parallel. As the threshold voltage (V D ) of p-n junctions vary with temperature, and the number of components can be made to vary with battery type, by measuring the total voltage drop (Vo) across series connected components or current through parallel connected components which will vary with temperature and the number of components, a single signal can provide information on more than one battery parameter.
Inventors
- 👤 Markku Syrjala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:46
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/40; H02J7/443; G; G01; G01R; G01R31/00; G01R31/36; G01R31/3644; G01R31/3648; G01R31/382; G01R31/3835; H01; H01M; H01M10/00; H01M10/42; H01M10/48; H02J7/485; G01R31/374; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
50 words
A battery for use in an electrical apparatus, the battery comprising: a plurality of interconnected cells; and means, operably connected to the cells and variable in response to a first battery parameter, for providing a common identification signal indicative of the first battery parameter and a second independent battery parameter.
Claim 2
Dependent Claim
50 words
A battery for use in an electrical apparatus, the battery comprising: a plurality of interconnected cells; and means, operably connected to the cells and variable in response to a first battery parameter, for providing a common identification signal indicative of the first battery parameter and a second independent battery parameter.
Claim 3
Dependent Claim
68 words
A battery according to claim 1 wherein the common identification signal providing means comprises at least one component having a property which varies in dependence upon the first battery parameter, and the number of components of the signal providing means is selected in dependence of the second battery parameter such that a value of the identification signal varies as a function of the first and second battery parameters.
Claim 4
Dependent Claim
21 words
A battery according to claim 2 wherein the components comprise a respective p-n junction whose threshold voltage is the variable property.
Claim 5
Dependent Claim
41 words
A battery according to claim 3 wherein the components are coupled in series such that the value of the identification signal is dependent on the sum of the threshold voltages, this value being indicative of the first and second battery parameters.
Claim 6
Dependent Claim
45 words
A battery according to claim 3 wherein the components are coupled in parallel such that the value of the identification signal is dependent on the sum of the current through the parallel coupled components, this value being indicative of the first and second battery parameters.
Claim 7
Dependent Claim
15 words
A battery according to claim 2 wherein the at least one component is a diode.
Claim 8
Dependent Claim
15 words
A battery according to claim 2 wherein the at least one component is a transistor.
Claim 9
Dependent Claim
37 words
In a battery having interconnected cells, the improvement comprising: an identification signal generator operably connected to the cells, the generator being adapted to generate a single signal indicative of at least two separate and independent battery parameters.
Claim 10
Dependent Claim
37 words
In a battery having interconnected cells, the improvement comprising: an identification signal generator operably connected to the cells, the generator being adapted to generate a single signal indicative of at least two separate and independent battery parameters.
Claim 11
Dependent Claim
45 words
A battery as in claim 8 wherein the generator comprises at least one component having a property which varies in dependence upon a first one of the battery parameters and, the number of components is provided to provide a second one of the battery parameters.
Claim 12
Dependent Claim
24 words
A battery according to claim 9 wherein the at least one component comprise a respective p-n junction whose threshold voltage is the variable property.
Claim 13
Dependent Claim
45 words
A battery according to claim 10 wherein at least two of the components are coupled in series such that the value of the identification signal is dependent on the sum of the threshold voltages, this value being indicative of the first and second battery parameters.
Claim 14
Dependent Claim
49 words
A battery according to claim 10 wherein at least two of the components are coupled in parallel such that the value of the identification signal is dependent on the sum of the current through the parallel coupled components, this value being indicative of the first and second battery parameters.
Claim 15
Dependent Claim
15 words
A battery according to claim 9 wherein the at least one component is a diode.
Claim 16
Dependent Claim
15 words
A battery according to claim 9 wherein the at least one component is a transistor.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-23 | 1999-04-24 | 1999-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-23 | 2003-04-24 | 2003-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-23 | 2007-04-24 | 2007-10-24 | $7700.00 | Window Closed / Lapsed |