US5710975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective call transceiver with system approved power saving state
Assignee: Google Technology Holdings LLC
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Filing: 1995-12-26
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Granted: 1998-01-20
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Expires: 2015-12-26
Abstract
Abstract A battery-powered selective call transceiver, operating in two-way communication with an RF communication system, can be put in a power saving state. A user control on the transceiver allows a user to select the duration of a power saving interval. The transceiver sends to the communication system a signal requesting that the transceiver enter a power saving state for the selected interval. Upon receipt of an acknowledgment signal from the system, the transceiver enters the power saving state.
Inventors
- 👤 Richard C. Bernhardt
- 👤 II Clinton C. Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:00
CPC Classifications
H; H04; H04W; H04W84/00; H04W84/02; H04W84/022; H04W84/025; H04W88/00; H04W88/02; H04W88/022; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
149 words
For use with an asynchronous communication system that exchanges information with a selective call transceiver by transmissions that occur at random intervals, a method of establishing a power saving state within the selective call transceiver without losing information comprising: a) establishing a communication link between the selective call transceiver and the communication system; b) sending from the selective call transceiver to the communication system a signal requesting that the selective call transceiver, be permitted to enter a power saving state for a predetermined, uninterrupted power saving interval; c) if the communication system approves the request, sending an acknowledgment signal from the communication system to the selective call transceiver; d) if the acknowledgement signal indicating request aaproval is received by the selective call receiver, causing the selective call transceiver to enter the power saving state; and e) during the power saving interval, storing messages intended for the selective call transceiver.
Claim 2
Dependent Claim
149 words
For use with an asynchronous communication system that exchanges information with a selective call transceiver by transmissions that occur at random intervals, a method of establishing a power saving state within the selective call transceiver without losing information comprising: a) establishing a communication link between the selective call transceiver and the communication system; b) sending from the selective call transceiver to the communication system a signal requesting that the selective call transceiver, be permitted to enter a power saving state for a predetermined, uninterrupted power saving interval; c) if the communication system approves the request, sending an acknowledgment signal from the communication system to the selective call transceiver; d) if the acknowledgement signal indicating request aaproval is received by the selective call receiver, causing the selective call transceiver to enter the power saving state; and e) during the power saving interval, storing messages intended for the selective call transceiver.
Claim 3
Dependent Claim
26 words
A method as set forth in claim 1 wherein the power saving state lasts for an interval whose maximum duration is controlled by the communication system.
Claim 4
Dependent Claim
22 words
A method as set forth in claim 1 including selecting a duration for the power saving interval at the selective call transceiver.
Claim 5
Dependent Claim
31 words
A method as set forth in claim 3, further including transmitting from the communication system to the selective call transceiver a signal indicating a maximum duration for the power saving interval.
Claim 6
Dependent Claim
98 words
In a selective call transceiver that is capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, a method of establishing a power saving state in the selective call transceiver, comprising: a) sending to the communication system a signal requesting that the selective call transceiver be permitted to enter a power saving state for a predetermined, uniterrupted power saving interval; b) receiving an acknowledgement signal from the communication system approving the request to enter a power saving state; and c) entering the power saving state if the acknowledgement signal is received.
Claim 7
Dependent Claim
98 words
In a selective call transceiver that is capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, a method of establishing a power saving state in the selective call transceiver, comprising: a) sending to the communication system a signal requesting that the selective call transceiver be permitted to enter a power saving state for a predetermined, uniterrupted power saving interval; b) receiving an acknowledgement signal from the communication system approving the request to enter a power saving state; and c) entering the power saving state if the acknowledgement signal is received.
Claim 8
Dependent Claim
15 words
A method as set forth in claim 5 wherein the power saving interval is variable.
Claim 9
Dependent Claim
23 words
A method as set forth in claim 6, including using the selective call transceiver to select a duration for the power saving interval.
Claim 10
Dependent Claim
37 words
A method as set forth in claim 5 further including detecting the end of the power saving interval and sending a signal to the communication system indicating that the selective call transceiver's power saving state has ended.
Claim 11
Dependent Claim
24 words
A method as set forth in claim 8 including manually re-setting the selective call transceiver from the power saving state to an active state.
Claim 12
Dependent Claim
126 words
In a selective call transceiver that is capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, a method of establishing a power saving state in the selective call transceiver, comprising: a) sending to the communication system a signal requesting that the selective call transceiver be permitted to enter a power saving state for a user-selected, uninterrupted power saving interval; b) receiving an acknowledgment signal from the communication system approving the request to enter a power saving state; c) entering the power saving state if the acknowledgement signal is received; d) detecting the end of the power saving interval; and e) sending a signal to the communication system indicating that the selective call transceiver's power saving state has ended.
Claim 13
Dependent Claim
126 words
In a selective call transceiver that is capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, a method of establishing a power saving state in the selective call transceiver, comprising: a) sending to the communication system a signal requesting that the selective call transceiver be permitted to enter a power saving state for a user-selected, uninterrupted power saving interval; b) receiving an acknowledgment signal from the communication system approving the request to enter a power saving state; c) entering the power saving state if the acknowledgement signal is received; d) detecting the end of the power saving interval; and e) sending a signal to the communication system indicating that the selective call transceiver's power saving state has ended.
Claim 14
Dependent Claim
24 words
A method as set forth in claim 10 including manually re-setting the selective call transceiver from the power saving state to an active state.
Claim 15
Dependent Claim
124 words
A battery-powered selective call transceiver capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, comprising: a receiver for receiving incoming signals; a transmitter for sending outgoing signals at random intervals; a memory for storing an indication of a duration for a power saving state; and a processor coupled to the memory and programmed to cause the transmitter to send to the communication system a signal indicating that the selective call transceiver be permitted to enter the power saving state for a predetermined, uninterrupted power saving interval, and to cause the selective call reveiver to enter the power saving state in response to the selective call receiver receiving a signal from the communication system indicating request approval.
Claim 16
Dependent Claim
124 words
A battery-powered selective call transceiver capable of two-way RF communication with an asynchronous communication system by transmissions that occur at random intervals, comprising: a receiver for receiving incoming signals; a transmitter for sending outgoing signals at random intervals; a memory for storing an indication of a duration for a power saving state; and a processor coupled to the memory and programmed to cause the transmitter to send to the communication system a signal indicating that the selective call transceiver be permitted to enter the power saving state for a predetermined, uninterrupted power saving interval, and to cause the selective call reveiver to enter the power saving state in response to the selective call receiver receiving a signal from the communication system indicating request approval.
Claim 17
Dependent Claim
47 words
A battery-powered selective call transceiver as set forth in claim 12 further including a user control for selecting a duration for the power saving interval, the processor being responsive to the user control for causing an indication of the selected duration to be stored in the memory.
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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) | 2001-01-19 | 2001-07-21 | 2002-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-19 | 2005-07-21 | 2006-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-19 | 2009-07-21 | 2010-01-20 | $7700.00 | Window Closed / Lapsed |