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:
Aug. 31, 1993
Filed:
May. 31, 1990
Thomas A Rohwer, Sunnyvale, CA (US);
Sony Corporation, Shinagawa, JP;
Abstract
An automatic memory sizer for a digital video recorder is provided. The sizer in accordance with the present invention automatically examines and configures available memory space for efficient storage of digital video information regardless of whether the memory consists of similar devices and/or storage capacities. By checking for selectively placed conductive jumpers on the circuit boards containing the memory devices, or by systematically writing test data into and reading it back out of the memory devices, the sizer in accordance with the present invention automatically determines the presence or absence of available memory assemblies and their respective relative data storage capacities. The sizer then establishes a hierarchy of available memory assemblies for pairing portions thereof based upon their respective relative data storage capacities, creates a memory address allocation table based upon such pairings for efficient accessing thereof, and writes incoming video data into the memory assemblies according to the allocation table.