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:
Nov. 23, 2010
Filed:
Aug. 31, 2007
Haiming Yu, San Jose, CA (US);
Catherine Chingi Chang, San Jose, CA (US);
Haiming Yu, San Jose, CA (US);
Catherine Chingi Chang, San Jose, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A memory circuit, where data is read from and written to the memory cell in one clock cycle via a port without pre-charging the port between reading data from and writing data to the memory cell via the port in the one clock cycle, is described. In one aspect, an embodiment of the present invention provides a memory circuit with a write control switch that has a voltage drop of substantially zero volts. In another aspect, an embodiment of the present invention provides a memory circuit with a write driver that uses a complementary metal oxide semiconductor ('CMOS') inverter whose P-channel MOS ('PMOS') transistor size is approximately 0.5 times its N-channel MOS (“NMOS”) transistor size. In yet another aspect, an embodiment of the present invention provides a memory circuit with a latch-type read sense amplifier.