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:
Dec. 27, 1994
Filed:
Sep. 16, 1993
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A multiport memory comprises a pair of memory cells, at least a pair of bit line and a pair of word lines on a random access port side. One of the memory cell is connected to one bit line and one word line and the other memory cell is connected to the other bit line and the other word line. A pair of data lines which are respectively connected to load elements are also provided in the random access port side of the multiport memory. A first switch circuit is connected between the pair of bit lines and the pair of data lines. On a serial access port side, a data register is connected between the pair of bit lines to receive data transmitted through the pair of bit lines. A second switch circuit for transmitting data is connected between the pair of bit lines and the data register. A control circuit opens the first switch circuit, before closing the second switch circuit to transmit data stored in the memory cells to the data register.