Patent US979431A successfully refreshed from Google Patents.
Patent US6006068A successfully refreshed from Google Patents.
← Back to Patent Explorer
US6006068A Expired / Lapsed US ⏱️ 0.0 years remaining

Two-way pager with transmit threshold

Assignee: Google Technology Holdings LLC
•
Filing: 1998-01-12
•
Granted: 1999-12-21
•
Expires: 2018-01-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Application of power to a transmitter in a messaging device is preceded by measuring a quality of at least one base station down-link signal received by a receiver in the device, and producing a transmit threshold signal when the measured signal quality corresponds to a substantial likelihood of accurate detection by a base station of an up-link signal to be transmitted from the device. The device transmitter is powered on only if the transmit threshold signal is present over a given interval prior to a transmitter operation. Thus, a relatively low-power battery and small antenna can be used effectively by the device, and its overall size kept at a minimum.

Inventors

  • 👤 Kenneth Charles Elkin
  • 👤 Craig J. Christmas
  • 👤 Leonard Wayne Bennett

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 19:10
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/185; H04B7/1853; H04B7/18567; H04B17/00; H04B17/30; H04B17/382; H04W; H04W60/00; H04W60/04; Y; Y02; Y02D; Y02D30/00; Y02D30/70

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 153 words
A messaging device, comprising: a receiver constructed and arranged to receive down-link signals from a base station; a transmitter constructed and arranged to transmit up-link signals for reception by a base station; a processor for controlling operations to be performed by the device, wherein the receiver and the transmitter are each coupled to the processor; and a transmit condition stage coupled to the receiver and to the processor, said stage being constructed and arranged to measure a quality of at least one down-link signal received by the receiver, and to output a transmit threshold signal when the measured signal quality corresponds to a substantial likelihood of accurate detection at a base station of an up-link signal to be transmitted from the device; and wherein said processor is configured to cause the transmitter to be powered on only if the transmit threshold signal is present over a given interval prior to a transmitter operation.
Claim 2
Dependent Claim 153 words
A messaging device, comprising: a receiver constructed and arranged to receive down-link signals from a base station; a transmitter constructed and arranged to transmit up-link signals for reception by a base station; a processor for controlling operations to be performed by the device, wherein the receiver and the transmitter are each coupled to the processor; and a transmit condition stage coupled to the receiver and to the processor, said stage being constructed and arranged to measure a quality of at least one down-link signal received by the receiver, and to output a transmit threshold signal when the measured signal quality corresponds to a substantial likelihood of accurate detection at a base station of an up-link signal to be transmitted from the device; and wherein said processor is configured to cause the transmitter to be powered on only if the transmit threshold signal is present over a given interval prior to a transmitter operation.
Claim 3
Dependent Claim 42 words
A messaging device according to claim 1, wherein the processor is configured to respond to said transmit threshold signal over an interval corresponding to a communication system time frame during which signals are addressed from system base stations to selected messaging devices.
Claim 4
Dependent Claim 25 words
A messaging device according to claim 1, wherein said processor is configured to cause said transmitter to transmit a location up-link signal from the device.
Claim 5
Dependent Claim 57 words
A messaging device according to claim 1, including a queue associated with the processor for storing information to be encoded on up-link signals from the device when the transmitter is subsequently powered on, and said processor is configured to download stored information from the queue for encoding on said up-link signals when the transmitter is powered on.
Claim 6
Dependent Claim 25 words
A wireless communication system including at least one messaging device according to claim 1, and at least one system base station aboard an Earth-orbiting satillite.
Claim 7
Dependent Claim 22 words
A wireless communication system including at least one messaging devive according to claim 1, and at least one terrestrial system base station.
Claim 8
Independent Claim 112 words
A method of causing a transmitter of a messaging device to be powered on, comprising; receiving with a device receiver down-link signals from a base station; providing a device transmitter constructed to transmit up-link signals for reception by a base station; measuring a quality of at least one down-link signal received by the receiver, and producing a transmit threshold signal when the measured signal quality corresponds to a substantial likelihood of accurate detection at a base station of an up-link signal to be transmitted from the device; and causing the transmitter to be powered on only if the transmit threshold signal is present over a given interval prior to a transmitter operation.
Claim 9
Independent Claim 112 words
A method of causing a transmitter of a messaging device to be powered on, comprising; receiving with a device receiver down-link signals from a base station; providing a device transmitter constructed to transmit up-link signals for reception by a base station; measuring a quality of at least one down-link signal received by the receiver, and producing a transmit threshold signal when the measured signal quality corresponds to a substantial likelihood of accurate detection at a base station of an up-link signal to be transmitted from the device; and causing the transmitter to be powered on only if the transmit threshold signal is present over a given interval prior to a transmitter operation.
Claim 10
Dependent Claim 36 words
The method of claim 7, including responding to said transmit threshold signal over an interval corresponding to a communication system time frame during which down-link signals are addressed from system base stations to selected messaging devices.
Claim 11
Dependent Claim 21 words
The method of claim 7, including causing said transmitter to transmit an up-link signal corresponding to a location of the device.
Claim 12
Dependent Claim 43 words
The method of claim 7, including queuing information to be encoded on up-link signals from the device when the transmitter is subsequently powered on, and downloading stored information from the queue for encoding on said up-link signals when the transmitter is powered on.
Claim 13
Dependent Claim 17 words
The method of claim 7, including operating at least one system base station aboard an Earth-orbiting satillite.
Claim 14
Dependent Claim 14 words
The method of claim 7, including operating at least one terrestrial system base station.

References Cited (Backward Citations)

US4851820A Cited
US5032835A Cited
US5049875A Cited
US5289178A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-12-20 2003-06-21 2003-12-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-12-20 2007-06-21 2007-12-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-12-20 2011-06-21 2011-12-21 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag