Patent US4967407A successfully refreshed from Google Patents.
US4967407A
Expired / Lapsed
US
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Continuous transmission mode radio with control information monitoring capability
Assignee: Motorola Solutions Inc
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Filing: 1989-01-23
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Granted: 1990-10-30
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Expires: 2009-01-23
Abstract
Abstract In a communication system where outbound communications are comprised of a TDM format, and inbound communications are not, and wherein the outbound communications occasionally include system control information, a method for allowing a transmitting unit to occasionally interrupt its transmissions to allow reception of system control information.
Inventors
- 👤 Charles N. Lynk
- 👤 Joseph P. Heck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:21
CPC Classifications
H; H04; H04J; H04J4/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
115 words
In an RF communication system having at least a first station and a second station, wherein the first station transmits information, including both message information and system control information, to the second station in a TDM format, and wherein the second station transmits information to the first station in a non-TDM format, a method of allowing the second station to monitor system control information transmitted by the first station, comprising the steps of: (a) when in a receive mode, receiving the system control information; (b) when in a transmit mode: (i) interrupting a transmission to the first station from time to time; and (ii) receiving the system control information as transmitted by the first station.
Claim 2
Dependent Claim
115 words
In an RF communication system having at least a first station and a second station, wherein the first station transmits information, including both message information and system control information, to the second station in a TDM format, and wherein the second station transmits information to the first station in a non-TDM format, a method of allowing the second station to monitor system control information transmitted by the first station, comprising the steps of: (a) when in a receive mode, receiving the system control information; (b) when in a transmit mode: (i) interrupting a transmission to the first station from time to time; and (ii) receiving the system control information as transmitted by the first station.
Claim 3
Dependent Claim
74 words
The method of claim 1 wherein the step of interrupting a transmission includes the steps of: b(i)(a) monitoring message information to be transmitted to the first station; b(i)(b) detecting occurrence of at least one predetermined message information event; b(i)(c) modifying the transmission in response to detection of at least some of the predetermined message event to allow interruption of the transmission and concurrent reception of the system control information without loss of message information.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |