The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 1990
Filed:
Jan. 03, 1989
James C Stoddard, Wayland, MA (US);
GTE Laboratories Incorporated, Waltham, MA (US);
Abstract
Apparatus stores a composite video frame including synchronization signals, color burst signals, and analog signals. The synchronization signals, color burst signals and analog signals of a video frame are sampled and digitized by circuitry: Two addressable memories are provided. An input register coupled to first and second memories buffers a plurality of digitized samples. An output register coupled to said first and second memories buffers the outputs of the memories. Address circuits provide sequential addressed to the memories for each cycle. During a write cycle, control means provide control signals for enabling the input register to buffer the samples and alternately write enabling the memories to store said samples. During a read cycle, control signals are provided for alternately read enabling the second memories to output the samples and to enable the output register to buffer the output. A circuit converts the output into analog.