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Showing 1 to 20 of 343 results

PATENT /PUB No. Country Patent Title Patent Owner Filing Date Issue/Pub Date Status
6327274 US Method for estimating relative skew between clocks in packet networks Sep 15, 1998 Dec 4, 2001 Expired
6430163 US Allocation of control channel in packet radio network Nov 27, 1998 Aug 6, 2002 In Force
6553012 US Method and apparatus for directional radio communication Sep 17, 1999 Apr 22, 2003 Expired
5551056 US Method for securing the operation of a telecommunications network in a cellular radio system and a base station arrangement Aug 16, 1994 Aug 27, 1996 Expired
6192055 US Method and an arrangement for setting up a data call, and an adapter equipment Mar 2, 1998 Feb 20, 2001 In Force
5936999 US Receiver and method for generating spreading codes in a receiver Oct 10, 1996 Aug 10, 1999 Expired
5715279 US Method for estimating a channel, and a receiver Sep 11, 1995 Feb 3, 1998 In Force
6240091 US Implementation of access service Oct 17, 1997 May 29, 2001 In Force
6161085 US Method and arrangement for adding a new speech encoding method to an existing telecommunication system Oct 9, 1998 Dec 12, 2000 Expired
5752161 US Method and apparatus for replacing a failed channel unit of a sectored base station, in a cellular radio system, with an additional channel unit Mar 22, 1996 May 12, 1998 In Force
6321069 US Arrangement for reducing intermodulation distortion of radio frequency signals Dec 22, 1998 Nov 20, 2001 In Force
5913169 US Cellular mobile station system Jun 13, 1997 Jun 15, 1999 Expired
6233569 US Event recording in a service database system Feb 16, 1999 May 15, 2001 Expired
5088112 US AN INTERFACE UNIT Nov 21, 1989 Feb 11, 1992 Expired
6171039 US Locking mechanism for connector May 11, 1999 Jan 9, 2001 Expired
5418787 US Signalling method for a radio system Dec 10, 1993 May 23, 1995 Expired
6167079 US Method for identifying data transmission rate, and a receiver Aug 28, 1997 Dec 26, 2000 Expired
6011971 US Handover method and cellular communications system May 16, 1996 Jan 4, 2000 In Force
6487288 US Intelligent network switching point and control point Jun 22, 1999 Nov 26, 2002 In Force
6351522 US Method for providing a delivery confirmation of message deliveries made in a telephone network Dec 8, 1997 Feb 26, 2002 Expired

Showing 1 to 20 of 343 results

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