Browse Prior Art Database

DIGITAL SAT SIGNALLING

IP.com Disclosure Number: IPCOM000005661D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2001-Oct-24
Document File: 1 page(s) / 73K

Publishing Venue

Motorola

Related People

Authors:
Steve Levine Larry Puhl

Abstract

The following is a description of a method for providing continuous signalling over cellular radio-telephone voice channels. The current U.S. cellular system blanks the audio for 100 msec to send 10K bibsec data messages. Increasing the capacity by splitting the channels would require the data rate to be reduced. This increases the blank time and places more of the data transmission spectrum in the audio band. Therefore, continuous signalling provides a fundamental advantage in the quest for improved spectrum efficiency.