Patent US5929604A successfully refreshed from Google Patents.
US5929604A
Expired / Lapsed
US
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Battery-discharge-protection system for electronic accessories used in vehicles containing a battery
Assignee: Unwired Planet LLC
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Filing: 1997-06-18
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Granted: 1999-07-27
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Expires: 2017-06-18
Abstract
Abstract The present invention measures the energy consumption of battery-powered telephone devices to prevent the inadvertent deep discharge of a vehicle's battery by prolonged use of said devices when the vehicle is unattended. In a preferred embodiment, current to the devices is incrementally measured or estimated from a measurement of other relevant parameters. The incremental measurements of current are accumulated to produce a total current consumption indicative of the total energy consumption. At each update after an incremental measurement, the accumulated total is compared to a pre-established or adaptively determined. When the total energy consumption meets or exceeds the threshold, the power to the battery-powered telephone device is interrupted in order to conserve a sufficient amount of power to start the vehicle and to operate other peripheral systems.
Inventors
- 👤 David Rand Irvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:06
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/60; H02J7/663; Y; Y10; Y10S; Y10S320/00; Y10S320/18; Y10S320/21
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
157 words
A battery discharge protection system for a mobile telecommunications device powered by a battery, comprising: a) a power supply line connecting the telecommunications device to the battery; b) a control unit for monitoring the current consumed by said telecommunications device, said control unit including: i) an accessory current sensor for determining the current consumed by said telecommunications device in discrete intervals of time; ii) an accumulator for summing the current consumed by said telecommunications devices over a plurality of said time intervals to obtain a cumulative total of the current consumed; iii) means for generating a control signal when said total current consumed as indicated by said cumulative total reaches a threshold; c) a power switch disposed in said power supply line between the battery and the telecommunications device and operatively connected to said control unit, wherein said power switch is responsive to said control signal from said control unit to interrupt power to said telecommunications device.
Claim 2
Dependent Claim
157 words
A battery discharge protection system for a mobile telecommunications device powered by a battery, comprising: a) a power supply line connecting the telecommunications device to the battery; b) a control unit for monitoring the current consumed by said telecommunications device, said control unit including: i) an accessory current sensor for determining the current consumed by said telecommunications device in discrete intervals of time; ii) an accumulator for summing the current consumed by said telecommunications devices over a plurality of said time intervals to obtain a cumulative total of the current consumed; iii) means for generating a control signal when said total current consumed as indicated by said cumulative total reaches a threshold; c) a power switch disposed in said power supply line between the battery and the telecommunications device and operatively connected to said control unit, wherein said power switch is responsive to said control signal from said control unit to interrupt power to said telecommunications device.
Claim 3
Dependent Claim
47 words
The battery discharge protection system of claim 1 further including an alternator current sensor connected to an input of said control unit, said control unit being responsive to the alternator current sensor to begin monitoring the amount of current consumed when a recharging current is not present.
Claim 4
Dependent Claim
18 words
The battery discharge protection system of claim 1 wherein said control unit is contained within the telecommunications device.
Claim 5
Dependent Claim
22 words
The battery discharge protection system of claim 1 wherein said control unit is contained in an adapter connected to said telecommunications device.
Claim 6
Dependent Claim
19 words
The battery discharge protection system of claim 1 wherein said control unit is contained within a vehicle electrical system.
Claim 7
Dependent Claim
36 words
The battery discharge protection system of claim 1 further including a power bus for connecting a plurality of devices to said power supply line, wherein said control unit monitors the current flowing through said power bus.
Claim 8
Dependent Claim
14 words
The battery discharge protection system of claim 1 wherein said threshold is adaptively determined.
Claim 9
Dependent Claim
20 words
The battery discharge protection system of claim 7 wherein said threshold is adaptively determined as a function of ambient temperature.
Claim 10
Dependent Claim
20 words
The battery discharge protection system of claim 7 wherein said threshold is adaptively determined as a function of battery condition.
Claim 11
Dependent Claim
152 words
A battery discharge protection system for a mobile telecommunications device powered by a battery, comprising: a) a power supply line connecting the telecommunications device to the battery; b) a control unit for monitoring the battery discharge caused by said telecommunications device, said control unit including: i) an accessory current sensor for measuring current flowing to said telecommunications device over the power supply line at discrete intervals of time; ii) an accumulator for storing a cumulative total of the current consumed by said telecommunications device; iii) means for generating a control signal when the current consumed by said device as indicated by said cumulative total reaches a threshold; c) a power switch disposed in said power supply line between the battery and the telecommunications device and operatively connected to said control unit wherein said power switch is responsive to said control signal from said control unit to interrupt power to said telecommunications device.
Claim 12
Dependent Claim
152 words
A battery discharge protection system for a mobile telecommunications device powered by a battery, comprising: a) a power supply line connecting the telecommunications device to the battery; b) a control unit for monitoring the battery discharge caused by said telecommunications device, said control unit including: i) an accessory current sensor for measuring current flowing to said telecommunications device over the power supply line at discrete intervals of time; ii) an accumulator for storing a cumulative total of the current consumed by said telecommunications device; iii) means for generating a control signal when the current consumed by said device as indicated by said cumulative total reaches a threshold; c) a power switch disposed in said power supply line between the battery and the telecommunications device and operatively connected to said control unit wherein said power switch is responsive to said control signal from said control unit to interrupt power to said telecommunications device.
Claim 13
Dependent Claim
47 words
The battery discharge protection system of claim 10 further including an alternator current sensor connected to an input of said control unit, said control unit being responsive to the alternator current sensor to begin monitoring the amount of current consumed when a recharging current is not present.
Claim 14
Dependent Claim
18 words
The battery discharge protection system of claim 10 wherein said control unit is contained within the telecommunications device.
Claim 15
Dependent Claim
22 words
The battery discharge protection system of claim 10 wherein said control unit is contained in an adapter connected to said telecommunications device.
Claim 16
Dependent Claim
19 words
The battery discharge protection system of claim 10 wherein said control unit is contained within a vehicle electrical system.
Claim 17
Dependent Claim
36 words
The battery discharge protection system of claim 10 further including a power bus for connecting a plurality of accessories to said power supply line, wherein said control unit monitors the current flowing through said power bus.
Claim 18
Dependent Claim
14 words
The battery discharge protection system of claim 10 wherein said threshold is adaptively determined.
Claim 19
Dependent Claim
20 words
The battery discharge protection system of claim 16 wherein said threshold is adaptively determined as a function of ambient temperature.
Claim 20
Dependent Claim
20 words
The battery discharge protection system of claim 16 wherein said threshold is adaptively determined as a function of battery condition.
Claim 21
Dependent Claim
164 words
A battery discharge protection system for a mobile telecommunications device powered by a battery, comprising: a) a power supply line connecting the mobile telecommunications device to the battery of a vehicle; b) a control unit for monitoring the energy consumed by said mobile telecommunications device, said control unit including: i) a power state detector for determining the power state of said mobile telecommunications device; ii) a processor for calculating the energy consumed by said mobile telecommunications device in each power state; iii) an accumulator for maintaining a cumulative total of the energy consumed by said mobile telecommunication device; iv) means for generating a control signal when the total energy consumed as indicated by the cumulative total reaches a threshold; c) a power switch disposed in said power supply line between the battery and the telecommunications device and operatively connected to said control unit, wherein said power switch is responsive to said control signal from said control unit to interrupt power to said telecommunications device.
Claim 22
Dependent Claim
164 words
A battery discharge protection system for a mobile telecommunications device powered by a battery, comprising: a) a power supply line connecting the mobile telecommunications device to the battery of a vehicle; b) a control unit for monitoring the energy consumed by said mobile telecommunications device, said control unit including: i) a power state detector for determining the power state of said mobile telecommunications device; ii) a processor for calculating the energy consumed by said mobile telecommunications device in each power state; iii) an accumulator for maintaining a cumulative total of the energy consumed by said mobile telecommunication device; iv) means for generating a control signal when the total energy consumed as indicated by the cumulative total reaches a threshold; c) a power switch disposed in said power supply line between the battery and the telecommunications device and operatively connected to said control unit, wherein said power switch is responsive to said control signal from said control unit to interrupt power to said telecommunications device.
Claim 23
Dependent Claim
47 words
The battery discharge protection system of claim 19 further including an alternator current sensor connected to an input of said control unit, said control unit being responsive to the alternator current sensor to begin monitoring the amount of energy consumed when a recharging current is not present.
Claim 24
Dependent Claim
18 words
The battery discharge protection system of claim 19 wherein said control unit is contained within the telecommunications device.
Claim 25
Dependent Claim
22 words
The battery discharge protection system of claim 19 wherein said control unit is contained in an adapter connected to said telecommunications device.
Claim 26
Dependent Claim
19 words
The battery discharge protection system of claim 19 wherein said control unit is contained within a vehicle electrical system.
Claim 27
Dependent Claim
14 words
The battery discharge protection system of claim 19 wherein said threshold is adaptively determined.
Claim 28
Dependent Claim
20 words
The battery discharge protection system of claim 24 wherein said threshold is adaptively determined as a function of ambient temperature.
Claim 29
Dependent Claim
20 words
The battery discharge protection system of claim 24 wherein, said threshold is adaptively determined as a function of battery condition.
Claim 30
Independent Claim
94 words
A method for preventing a telecommunications device from deeply discharging a battery in a vehicle when the vehicle is not charging the battery, said method comprising: a) determining the current consumed by said telecommunications device in discrete intervals of time; b) summing the current consumed by said telecommunications device over a plurality of said time intervals to determine a cumulative total of the current consumed; c) periodically comparing said current consumed as indicated by said cumulative total to a threshold; d) interrupting power to said telecommunications device when the current consumed exceeds said threshold.
Claim 31
Independent Claim
94 words
A method for preventing a telecommunications device from deeply discharging a battery in a vehicle when the vehicle is not charging the battery, said method comprising: a) determining the current consumed by said telecommunications device in discrete intervals of time; b) summing the current consumed by said telecommunications device over a plurality of said time intervals to determine a cumulative total of the current consumed; c) periodically comparing said current consumed as indicated by said cumulative total to a threshold; d) interrupting power to said telecommunications device when the current consumed exceeds said threshold.
Claim 32
Dependent Claim
27 words
The method of claim 27 wherein the step of determining the current consumed by said telecommunications device includes sampling and accumulating the current to said telecommunications device.
Claim 33
Dependent Claim
53 words
The method of claim 27 wherein the step of determining the current consumed by said telecommunications device includes determining the power state of the telecommunications device, determining the amount of time said telecommunications device is in said power state, and computing the current consumed as a function of said power state and time.
Claim 34
Dependent Claim
15 words
The method according to claim 27 further including the step of adaptively determining the threshold.
Claim 35
Dependent Claim
20 words
The battery discharge protection system of claim 30 wherein said threshold is adaptively determined as a function of ambient temperature.
Claim 36
Dependent Claim
20 words
The battery discharge protection system of claim 30 wherein said threshold is adaptively determined as a function of battery condition.
References Cited (Backward Citations)
US4558281A
Cited
US4575679A
Cited
US5332958A
Cited
US5229704A
Cited
US5140250A
Cited
US5043651A
Cited
WO1990012427A1
Cited
US5159257A
Cited
US5280231A
Cited
US5200688A
Cited
US5325041A
Cited
US5426589A
Cited
US5694020A
Cited
US5266880A
Cited
US5248929A
Cited
US5333176A
Cited
US5327068A
Cited
US5357203A
Cited
US5479085A
Cited
US5545969A
Cited
US5451881A
Cited
US5834922A
Cited
US5675236A
Cited
US5644212A
Cited
US5691078A
Cited
US5541489A
Cited
US5617324A
Cited
US5729061A
Cited
US5789901A
Cited
US5767778A
Cited
US5668465A
Cited
US5870685A
Cited
US5838139A
Cited
US5838140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-07-26 | 2003-01-25 | 2003-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-07-26 | 2007-01-25 | 2007-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-07-26 | 2011-01-25 | 2011-07-27 | $7700.00 | Window Closed / Lapsed |