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. 16, 2012
Filed:
Apr. 20, 2009
Ke-you HU, Shenzhen, CN;
Ke-You Hu, Shenzhen, CN;
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, Guangdong Province, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A circuit for controlling a peripheral device interface is to enable a central processing unit to detect a peripheral device. The circuit includes a control chip and first to sixth capacitors. The control chip includes a power supply input pin, first to second differential signal output pins, first to second differential signal input pins, and an expansion pin. The power supply input pin is connected to a power supply and grounded via the first and second capacitors in parallel. The first and second differential signal output pins are connected to the peripheral device interface via the third and fourth capacitors respectively. The first and second differential signal input pins are connected to the peripheral device interface via the fifth and sixth capacitors respectively. The expansion pin is grounded via a resistor.