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:
Apr. 01, 2003
Filed:
Dec. 22, 1999
Takefumi Yoshikawa, Osaka, JP;
Yutaka Terada, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data transmitter according to the present invention includes driver, transmission line and receiver. The receiver includes a transition pulse generator for generating a transition pulse simultaneously with the transition of a data signal output from the driver. If an edge of an internal clock signal overlaps with the transition pulse being applied, then the receiver does not latch the data signal in synchronism with the edge of the internal clock signal. Instead, the receiver obtains and retains a data value opposite to the previous cycle one. On the other hand, while no transition pulses are being applied, the receiver latches the data signal normally responsive to the internal clock signal. Accordingly, the receiver can always accurately retain the very data transmitted through the transmission line, thus improving the reliability of the data received and realizing high-speed data transmission even if the internal clock signal has lagged with respect to the data signal.