Abstract: The invention presents a digital raster timing encoder/decoder system when television raster synchronization pulses and other timing pulses and information data are generated. The invention comprises a digital clock source having coding circuitry which, combined with the clock source, encodes preselected digital signals containing 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.

Abstract: The circuit comprises a differentiator, two nonretriggerable-gated-monoste-multivibrators, a clock decoder, a data flip-flop unit, and a multiphase and frequency logic circuit. The differentiator checks the incoming Manchester encoded signal and divides it into two trigger signals one with data associated with logic "0" transitions within the Manchester signal and the second trigger signal containing data associated with logic "1" transitions within the Manchester data. One trigger signal is fed to one of the nonretriggerable-gated-monostable-multivibrator and the other trigger signal is transmitted to the second similar unit. Within these monostable multivibrator units the signals are gated and delayed by a tapped delay line which outputs a plurality of delayed signals which have waveforms built upon the occurrence of transitions within the Manchester signal associated with the logic "0" and logic "1" occurrences.

Abstract: A raster generator for producing a raster-type display on a random scan dlay terminal where the raster can be oriented at any selected angle of rotation. The rotating raster generator responds to a digital input signal representing the desired angle of rotation which may represent, for example, the turning or rolling motion of a vehicle. The generator operates digitally to provide an output comprised of two sets of digital signals, each signal set representing an axis rotated in an amount directly related to the value of the input angle. The signals are presented as inputs to the deflection coils of a cathode-ray tube (CRT) or like display.

Abstract: An encoding system wherein digital information comprising data, clock, and artitioning components is coupled to an encoding means comprising interconnected digital elements to generate a serial encoded signal having the encoded data, clock, and partitioning components inherent in the structure of the encoded signal. The encoded signal may be stored in a magnetic record/reproduce system and subsequently coupled to a decoding means comprising interconnected digital elements to recover the data, clock, and partitioning components of the original digital information.