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:
Mar. 26, 1991
Filed:
May. 31, 1988
Hiroshi Itaya, Isehara, JP;
Anritsu Corporation, Tokyo, JP;
Abstract
A RAM the capacity of which is to be detected is constituted by 2.sup.N memory blocks each having a predetermined memory capacity. An address signal representing an existing memory capacity can be fed to the RAM. An address controller designates a predetermined address for each block of the RAM. A code write section sequentially writes a detection code at the predetermined address in each block of the RAM. A code readout section reads out the detection code from the predetermined address of the first block of the RAM designated by the address controller. A code comparator sequentially compares the detection code read out by the code readout section with a detection code last written by the code write section, so as to detect whether there is a coincidence therebetween, and, when a coincidence is obtained, the comparator is able to detect the capacity of the entire RAM based on the coincident detection code.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile