Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2008-12-09
2011-10-25
Qureshi, Afsar M. (Department: 2472)
Multiplex communications
Communication over free space
Repeater
C370S341000, C370S352000, C455S015000, C455S450000, C455S512000
Reexamination Certificate
active
08045499
ABSTRACT:
The present invention discloses, in a two-way radio frequency (RF) communications system having at least one repeater, a plurality of channels, and a plurality of subscriber units, a repeater receives a message that identifies a channel that is selected to serve as a rest channel for the system. The channel that is currently serving as the rest channel for the system is monitored by subscriber units that are idle in the system. If the repeater determines that the channel selected to serve as the rest channel is hosted by the repeater, the repeater periodically transmits an identity of the channel as the channel currently serving as the rest channel on at least the channel.
REFERENCES:
patent: 5287551 (1994-02-01), Gustafson, Jr. et al.
patent: 5329558 (1994-07-01), Larsson et al.
patent: 5724515 (1998-03-01), Barnes et al.
patent: 5734643 (1998-03-01), Rondeau
patent: 5761211 (1998-06-01), Yamaguchi et al.
patent: 6052562 (2000-04-01), Dorenbosch
patent: 7203207 (2007-04-01), Hiben
patent: 7499441 (2009-03-01), Wiatrowski et al.
patent: 2002/0173311 (2002-11-01), Biggs et al.
patent: 2003/0153319 (2003-08-01), Wieczorek et al.
patent: 2005/0070320 (2005-03-01), Dent
patent: 2005/0153666 (2005-07-01), Nguy et al.
patent: 2005/0174963 (2005-08-01), Hsu
patent: 2006/0221887 (2006-10-01), Newberg
patent: 2006/0234748 (2006-10-01), Baik
patent: 2007/0104139 (2007-05-01), Marinier et al.
patent: 2007/0129079 (2007-06-01), Schwarz et al.
patent: 2007/0275756 (2007-11-01), Choi
patent: 2008/0008153 (2008-01-01), Hiben et al.
patent: 2008/0219191 (2008-09-01), Wang et al.
patent: 2008/0225821 (2008-09-01), Faith
patent: 2009/0016283 (2009-01-01), Zhang et al.
patent: 2010/0303033 (2010-12-01), Shahar et al.
patent: 2011/0026514 (2011-02-01), Tay
patent: 10-0349664 (2002-08-01), None
patent: 10-2008-0021454 (2008-03-01), None
PCT International Search Report Dated Apr. 15, 2010.
Sang Hyun Park, Corresponding Application PCT/US2009/058545—PCT International Search Report and Written Opinion, WIPO, ISA/KR, Korean Intellectual Property Office, Daejeon, Republic of Korea, Apr. 30, 2010, 11 pages, most relevant pp. 6-7 and 10-11. For related U.S. Appl. No. 12/331,180.
Choon Geun Cho, “Corresponding Application PCT/US2009/058326—PCT International Search Report and Written Opinion,” WIPO, ISA/KR, Korean Intellectual Property Office, Daejeon, Republic of Korea, May 10, 2010, 10 pages, most relevant pp. 6-7 and 10. For related U.S. Appl. No. 12/331,189.
Jung Pil Seung, “Corresponding Application PCT/US2009/058550—PCT International Search Report and Written Opinion,” WIPO, ISA/KR, Korean Intellectual Property Office, Daejeon, Republic of Korea, Apr. 30, 2010, 10 pages, most relevant pp. 6-7 and 10. For related application U.S. Appl. No. 12/331,167.
International Preliminary Report on Patentability dated Apr. 14, 2011 in counterpart application PCT/US2009/058548.
Office Action dated May 27, 2011 in related U.S. Appl. No. 12/331,180.
Ahmed Sobeih et al. “Almost Peer-to-Peer Clock Synchronization”, University of Illinois-IBM T.J. Watson Research Center; IEEE 2007, 10 pages.
International Preliminary Report on Patentability dated Apr. 14, 2011 in related case PCT/US2009/058326.
PCT International Search Report and Written Opinion Dated Apr. 14, 2011 for Related Application PCT/US2009/058550 (U.S. Appl. No. 12/331,167).
Office Action for Related U.S. Appl. No. 12/331,155.
Bohn Thomas B.
Chowdhary Dipendra M.
Panpaliya Satish R.
Patel Tejal S.
Patibandla Badarinath
Bestor Daniel R.
Hughes Terri S.
Motorola Solutions, Inc.
Qureshi Afsar M.
LandOfFree
Method of communicating which channel is to be monitored by... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of communicating which channel is to be monitored by..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of communicating which channel is to be monitored by... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4264144