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:
Feb. 03, 2009
Filed:
Aug. 03, 2006
Makoto Tanaka, Kanagawa, JP;
Makoto Tanaka, Kanagawa, JP;
NEC Electronics Corporation, Kawasaki, Kanagawa, JP;
Abstract
Disclosed is an output buffer circuit including main-data output buffers; a de-emphasis output buffer; and a selector that performs switching control in such a way that, based on a control signal indicating whether de-emphasis is to be enabled or disabled, main data is supplied to the de-emphasis output buffer to make the buffer operate as a main-data output buffer when the control signal indicates that de-emphasis is to be disabled, while emphasis data obtained on delaying the main data by the delay circuit is supplied to the de-emphasis output buffer to make the buffer operate as a de-emphasis output buffer when the control signal indicates that de-emphasis is to be enabled.