US5881361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication unit power up sequencing
Assignee: Motorola Solutions Inc
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Filing: 1996-04-03
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Granted: 1999-03-09
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Expires: 2016-04-03
Abstract
Abstract A communications system (100) having a number of communications units (134) connected to the communications system (100) in which the communications units (134) receive power from the communications system (100). In response to a loss of power or some other event requiring the communications units (134) to shift into an active state, the communications units (134) shift into the active state at different times, avoiding peak power loads within the communications system (100).
Inventors
- 👤 Michael Russell Mannette
- 👤 Camille Louise Dozier
- 👤 Hang Kiu Chan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:08
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/44; H04N; H04N7/00; H04N7/10; H04N7/16; H04N7/173; H04N7/17345; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W52/0261; H04W52/0274; H04W52/028; H04W52/0283; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
A cable communications system comprising: a cable distribution network; a plurality of communications units connected to the cable distribution network; assignment means for assigning each of the plurality of communications unit a delay period that differs substantially from communications unit to communications unit; and shifting means for shifting each of the plurality of communications units into an active state from another state after its respective delay period has expired, in response to a selected condition.
Claim 2
Dependent Claim
75 words
A cable communications system comprising: a cable distribution network; a plurality of communications units connected to the cable distribution network; assignment means for assigning each of the plurality of communications unit a delay period that differs substantially from communications unit to communications unit; and shifting means for shifting each of the plurality of communications units into an active state from another state after its respective delay period has expired, in response to a selected condition.
Claim 3
Dependent Claim
24 words
The cable communications system of claim 1, wherein the selected condition is a loss and restoration of supply power within the cable distribution network.
Claim 4
Dependent Claim
26 words
The cable communications system of claim 1, wherein the selected condition is a request from the cable communications system to reset the plurality of communications units.
Claim 5
Dependent Claim
139 words
A cable communications system comprising: a cable distribution network; a plurality of communications units connected to the cable distribution network, the plurality of communications units receiving supply power from the cable distribution network; and a plurality of assigned delay periods substantially different from communication unit to communication unit, wherein each of the assigned delay periods being assigned to a respective one of the communications units, each of the plurality of communications units abstains from communication during the assigned delay periods, each of the plurality of communications units shifting into an active state from another state after its respective assigned delay period has expired allowing communication over the cable communications system, in response to a restoration of supply power within the cable distribution network, wherein the delay period is longer than a period required to power up the communications unit.
Claim 6
Dependent Claim
139 words
A cable communications system comprising: a cable distribution network; a plurality of communications units connected to the cable distribution network, the plurality of communications units receiving supply power from the cable distribution network; and a plurality of assigned delay periods substantially different from communication unit to communication unit, wherein each of the assigned delay periods being assigned to a respective one of the communications units, each of the plurality of communications units abstains from communication during the assigned delay periods, each of the plurality of communications units shifting into an active state from another state after its respective assigned delay period has expired allowing communication over the cable communications system, in response to a restoration of supply power within the cable distribution network, wherein the delay period is longer than a period required to power up the communications unit.
Claim 7
Dependent Claim
53 words
The cable communications system of claim 4, wherein a first portion of the assigned delay periods within the plurality of assigned delay periods are set equal to a first delay while a second portion of the assigned delay periods within the plurality of assigned delay periods are set equal to a second delay.
Claim 8
Dependent Claim
23 words
The cable communications system of claim 4, wherein each of the plurality of assigned delay periods is set equal to a unique delay.
Claim 9
Dependent Claim
29 words
The cable communications system of claim 4, wherein each of the plurality of communications units shifting into an active state from another state registers with the cable communications system.
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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) | 2002-03-08 | 2002-09-07 | 2003-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-08 | 2006-09-07 | 2007-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-08 | 2010-09-07 | 2011-03-09 | $7700.00 | Window Closed / Lapsed |