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:
Oct. 11, 2011
Filed:
Jul. 23, 2007
Yoshihide Komatsu, Osaka, JP;
Tsuyoshi Ebuchi, Osaka, JP;
Satoshi Hori, Osaka, JP;
Takashi Hirata, Osaka, JP;
Junji Nakatsuka, Osaka, JP;
Yoshihide Komatsu, Osaka, JP;
Tsuyoshi Ebuchi, Osaka, JP;
Satoshi Hori, Osaka, JP;
Takashi Hirata, Osaka, JP;
Junji Nakatsuka, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An AC-coupled interface circuit on a semiconductor integrated circuit apparatus performing a bidirectional data transfer via a differential transmission line includes a differential driver, a differential receiver and a potential setting section. The differential driver includes a pair of output terminals connected to a pair of signal lines. The differential receiver includes a pair of input terminals connected to the pair of signal lines. In a data transmission operation, the differential driver converts transmit data to a differential signal to output the differential signal. In a data reception operation, the differential receiver receives a differential signal transferred to the pair of signal lines and converts the differential signal to receive data. The potential setting section sets a potential of the pair of signal lines to a predetermined stable potential before the differential signal is transferred to the pair of signal lines.