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.:

US 7804339 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 28, 2010

Filed:

Sep. 19, 2008
Applicant:

Tung-shuan Cheng, Tainan County, TW;

Inventor:

Tung-Shuan Cheng, Tainan County, TW;

Assignee:

NOVATEK Microelectronics Corp., Hsinchu Science Park, Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An interface circuit for a serial bus is disclosed and includes a receiving terminal, an output terminal, a first switching circuit, a voltage source, and a second switching circuit. The receiving and output terminals are used for receiving an input signal and outputting a first voltage signal respectively. The first switching circuit is used for determining a coupling relationship between the output terminal and the grounded terminal according to difference between the input signal and a grounding voltage provided by the grounded terminal. The voltage source is used for producing a voltage drop based on a driving voltage driving the serial bus interface circuit to provide a first voltage. The second switching circuit is used for determining a coupling relationship between the first switching circuit and the voltage source according to difference between the input signal and the first voltage.


Find Patent Forward Citations

Cheng, Tung-Shuan. (2010). Serial bus interface circuit (U.S. Patent No. 7804339). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7804339

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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