Patent US2711892A successfully refreshed from Google Patents.
US5570025A
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US
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Annunciator and battery supply measurement system for cellular telephones
Assignee: MERIDIAN WIRELESS TECHNOLOGIES Inc
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Filing: 1994-11-16
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Granted: 1996-10-29
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Expires: 2014-11-16
Abstract
Abstract A cellular phone both annunciates and retrieves stored mail messages using a single keypad button. A cellular basestation transmits voice mail messages to the cellular phone indicating that voice mail is ready for retrieval. A light emitting diode (LED) is located underneath a translucent button on the phone keypad and is activated when the voice mail message is received by the cellular phone. The illuminated button is then activated initiating a dialing operation that retrieves the voice mail. Battery charge is measured in a dual mode analog and digital cellular phone according to the various digital and analog modes presently performed. The different measurement values are averaged to provide a more accurate calculation of the amount of charge remaining in the battery supply.
Inventors
- 👤 Dan D. Lauritsen
- 👤 Galen Seitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:16
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W52/0261; H04M; H04M1/00; H04M1/72; H04M1/724; H04M1/72403; H04M1/7243; H04M19/00; H04M19/02; H04M19/04; H04M19/048; Y; Y02; Y02D; Y02D30/00; Y02D30/70; Y10; Y10S; Y10S320/00; Y10S320/18; Y10S320/21
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
137 words
A method for measuring battery voltage in a cellular phone having an analog mode, a distal mode, and a standby mode, comprising: periodically measuring the battery voltage at a first rate when the phone is operating in the analog mode; periodically measuring the battery voltage at a second rate slower than the first rate when the phone is operating in the standby mode; transmitting and receiving digitally encoded messages during selected time slots when the phone is operating in the digital mode; periodically measuring the battery voltage only during the selected time slots when the phone is operating in the digital mode; calculating an average voltage for each measured battery voltage; repeatedly measuring a new battery voltage according to the operating mode of the phone; and adjusting the average voltage according to the new phone battery voltage.
Claim 2
Independent Claim
137 words
A method for measuring battery voltage in a cellular phone having an analog mode, a distal mode, and a standby mode, comprising: periodically measuring the battery voltage at a first rate when the phone is operating in the analog mode; periodically measuring the battery voltage at a second rate slower than the first rate when the phone is operating in the standby mode; transmitting and receiving digitally encoded messages during selected time slots when the phone is operating in the digital mode; periodically measuring the battery voltage only during the selected time slots when the phone is operating in the digital mode; calculating an average voltage for each measured battery voltage; repeatedly measuring a new battery voltage according to the operating mode of the phone; and adjusting the average voltage according to the new phone battery voltage.
Claim 3
Dependent Claim
27 words
A method according to claim 1 wherein the step of repeatedly measuring the new phone battery voltage is periodic and asychronous with phone transmission and receiving operations.
Claim 4
Dependent Claim
62 words
A method according to claim 1 wherein the step of adjusting the average voltage comprises the following steps: subtracting the average voltage from each new battery voltage; weighting the difference between each new battery voltage and the average voltage; adding the weighted difference to the average voltage thereby creating a new average; and setting the new average voltage to the average voltage.
Claim 5
Dependent Claim
27 words
A method according to claim 3 including gradating the new average voltage into various battery power levels, each battery power level directing a different alarm annunciation operation.
Claim 6
Dependent Claim
71 words
A method according to claim 4 wherein the new voltage is gradated into at least three stored battery power levels, a new average voltage between the first and second battery power levels generating a phone audio annunciation operation, a new average voltage between the second and third battery power levels generating a phone illumination annunciation operation, and a new average voltage below the third level causing the phone to shut off.
Claim 7
Dependent Claim
25 words
A method according to claim 1 including adjusting the new battery voltage to correct for variations in tolerances in a given set of phone components.
Claim 8
Dependent Claim
88 words
A method according to claim 6 wherein adjusting the new battery voltage comprises the following steps: measuring first and second known phone test voltages; determining the slope between the first and second test voltages; storing the first and second test voltages and the slope; measuring the phone battery voltage; subtracting the measured phone battery voltage from the stored first measured test voltage generating a delta value; applying the stored slope to the delta value generating a correction value; and applying the correction value to each measured battery voltage.
Claim 9
Dependent Claim
42 words
A method according to claim 1 wherein measuring the battery voltage at the first rate comprises measuring the battery voltage about every 40 milliseconds; and measuring the battery voltage at the second rate comprises measuring the battery voltage about every 5 seconds.
Claim 10
Dependent Claim
32 words
A method according to claim 1 wherein the battery voltage is measured during a latter portion of each one of the selected time slots while the phone operates in the digital mode.
Claim 11
Dependent Claim
30 words
A method according to claim 7 wherein the first one of the test voltages is about 5.5 Volts and the second one of the test voltages is about 6.0 Volts.
Claim 12
Independent Claim
97 words
A method for measuring a battery in a cellular phone, comprising: measuring a predetermined first test voltage; measuring a predetermined second test voltage; determining a slope between the first test voltage and the second test voltage; storing the first and second test voltage and the slope; periodically measuring the battery voltage; subtracting the stored first measured test voltage from each periodically measured battery voltage thereby generating delta values; applying the slope to each of the delta values generating correction values associated with each measured battery voltage; and applying the associated correction value to each measured battery voltage.
Claim 13
Independent Claim
97 words
A method for measuring a battery in a cellular phone, comprising: measuring a predetermined first test voltage; measuring a predetermined second test voltage; determining a slope between the first test voltage and the second test voltage; storing the first and second test voltage and the slope; periodically measuring the battery voltage; subtracting the stored first measured test voltage from each periodically measured battery voltage thereby generating delta values; applying the slope to each of the delta values generating correction values associated with each measured battery voltage; and applying the associated correction value to each measured battery voltage.
Claim 14
Dependent Claim
70 words
A method according to claim 11 including the following steps: calculating an average voltage for the periodically measured battery voltage; measuring a new battery voltage; subtracting the average voltage from the new battery voltage; weighting the subtracted difference between the new battery voltage and the average voltage; adding the weighted difference to the average voltage creating a new average voltage; and setting the new average voltage to the average voltage.
Claim 15
Independent Claim
62 words
A method for measuring battery voltage in a digital cellular phone, comprising: transmitting and receiving digitally encoded messages during selected time slots; measuring battery voltages only during a latter portion of each of said time slots; calculating an average voltage for the measured battery voltages; measuring a new battery voltage; and adjusting the new phone battery voltage according to the average voltage.
Claim 16
Independent Claim
62 words
A method for measuring battery voltage in a digital cellular phone, comprising: transmitting and receiving digitally encoded messages during selected time slots; measuring battery voltages only during a latter portion of each of said time slots; calculating an average voltage for the measured battery voltages; measuring a new battery voltage; and adjusting the new phone battery voltage according to the average voltage.
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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) | 1999-10-29 | 2000-04-29 | 2000-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-29 | 2004-04-29 | 2004-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-29 | 2008-04-29 | 2008-10-29 | $7700.00 | Window Closed / Lapsed |