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:
Feb. 22, 1994
Filed:
May. 05, 1992
Vinson R Perry, San Carlos, CA (US);
Marc Klingelhofer, Fremont, CA (US);
Thomas A Rohwer, Sunnyvale, CA (US);
Sony Corporation, Tokyo, JP;
Abstract
A system for recording one or more individual fields or frames of a color, high definition video signal. In a preferred embodiment, the system is capable of digitally recording as many as 32 frames of a color, high definition video signal per memory board, and as many as four memory boards may be installed in the system. The invention is capable of performing partial or full frame (or field) transfers at any selected rate less than or equal to the standard video rate. In a preferred embodiment, the system of the invention accepts HDTV signals in either digital or analog format, includes a post processing unit for simultaneously reconstructing stored HDTV signals in both digital and analog format, and a control unit which emulates a conventional video tape recorder (in the sense that it responds to conventional video tape recorder control signals) for controlling the system's frame memory. The invention includes a parallel computer interface which permits transfer of full or partial fields or frames (in non-real time) between the frame memory and an external computer (or image processing unit) via a conventional communication link. The control unit and an interface unit including the parallel computer interface are connected by a serial communications link, so that a host computer may control memory access through the interface unit.