Accession Number : ADD012659
Title : Digital Raster Timing Encoder/Decoder.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Gennetten,Edward W ; Gomez,Duane A
Report Date : 23 Dec 1986
Pagination or Media Count : 17
Abstract : The invention presents a digital raster timing encoder/decoder system wherein television raster synchronization pulses and other timing pulses and information on raster synchronization control and timing, and also any other information data that is desired. The encoded signal output is transmitted either directly or via some special transmission link, for example by use of a Manchester Decoder clock multiplier (MDCM) system, to a receiving and decoding circuit. The received signal is decoded to create timing signals for operation control of the video television scanning system, and to read out other desired digital data that has been also transmitted within the signal. The system takes advantage of the fact that control signals of conventional synchronization pulses contain large deadband areas within which additional data information may be placed. Such additional digital information may be used to add other control pulse capability, or to add information transmission capability. A principal feature of the system is that only a single channel is needed to transmit synchronization pulses and any additional timing pulses or information of interest.
Descriptors : *PATENTS, *SYNCHRONIZATION(ELECTRONICS), *DATA TRANSMISSION SYSTEMS, *DIGITAL SYSTEMS, *TELEVISION DISPLAY SYSTEMS, *CHANNELS, *TELEVISION SYSTEMS, *VIDEO SIGNALS, CONTROL, PULSES, DATA BASES, DIGITAL SYSTEMS, CODING, SIGNALS, OUTPUT, CONTROL, CIRCUITS, DECODING, DATA MANAGEMENT, INFORMATION SYSTEMS, RASTERS, READ OUT TECHNIQUES, SCANNERS
Subject Categories : Non-radio Communications
Distribution Statement : APPROVED FOR PUBLIC RELEASE