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:
Sep. 20, 1988
Filed:
Oct. 03, 1986
Steven J Sasson, Springwater, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Color video signal apparatus includes a digital memory for storing a frame of color video signal in a fast and efficient manner. A composite color video signal is separated into a luminance and two chrominance signals. A luminance analog to digital converter (ADC) converts the luminance signal into an N bit digital signal at a sampling frequency F. A chrominance ADC converts each of the two chrominance signals into an M bit digital signal having a sampling frequency 1/4 F, where M is an even integer. N bits of a sample of the digital luminance signal and 1/2 M bits of a sample of one of the two digital chrominance signals are simultaneously written into the memory. For each set of four successive N bit samples of digital luminance signal written into memory, an M bit sample of each of the two digital chrominance signals is also written into the memory. The invention is useful in video cassette recorders.