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 8009400 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 30, 2011

Filed:

Sep. 03, 2009
Applicant:

Chien-yao Chao, Tu-Cheng, TW;

Inventor:

Chien-Yao Chao, Tu-Cheng, TW;

Assignee:

Chi Mei Communication Systems, Inc., Tu-Cheng, New Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An interface circuit for connecting with a universal serial bus (USB) data cable includes a USB connector for connecting with the USB data cable, an over voltage protection (OVP) circuit connected to the USB connector, and a time delay circuit connected to the USB connector and the OVP circuit to control the OVP circuit. The OVP circuit is switched off in a predetermined delay time of the time delay circuit when the USB data cable is connected to the USB connector, and is then switched on after the delay time of the time delay circuit.


Find Patent Forward Citations

Chao, Chien-Yao. (2011). Interface circuit and portable electronic device employing the same (U.S. Patent No. 8009400). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8009400

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

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