Accession Number : ADD002689

Title :   Digital Memory Area Correlation Tracker.

Descriptive Note : Patent,


Personal Author(s) : Everly,John W ; Todd,Barry S

Report Date : 09 May 1976

Pagination or Media Count : 5

Abstract : The patent relates to a digital tracker which provides a continuous television display of the area tracked, comprising a delay line coupled in circuit with a comparator, a video digitizer and a sensor. The digital tracker further comprises circuit means connected between the delay line and the sensor for deriving an error correction signal in response to any mismatch between the present, delayed video scene and the reference scene, stored in the delay line. A staircase raster generator which can be positively synchronized with the delay line through the use of a common master clock is used as the sensor and the delay line is a shift register which enables any desired bit of the stored signal to be available for use at any time.

Descriptors :   *Television tracking, *Patents, Digital systems, Tracking, Shift registers, Memory devices, Digitizers, Video signals, Television display systems, Image dissection

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE