ystem for video and digital dataUS3801735 *12 Nov 19712 Apr 1974Communications Patents LtdWired broadcasting systemsUS3827026 *4 Jan 197130 Jul 1974Honeywell Inf SystemsEncoding technique for enabling a device to process different types of digital information transmitted along a single information channelUS3828263 *12 Jun 19736 Aug 1974Physics Int CoDemodulator for frequency-burst-duration modulat