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:
Dec. 03, 2013
Filed:
Jun. 29, 2011
Baegin Sung, Sunnyvale, CA (US);
Myounhwan Kim, Yongin-si, KR;
Gyudong Kim, Sunnyvale, CA (US);
Chandlee Harrell, Los Altos, CA (US);
Baegin Sung, Sunnyvale, CA (US);
MyounHwan Kim, Yongin-si, KR;
Gyudong Kim, Sunnyvale, CA (US);
Chandlee Harrell, Los Altos, CA (US);
Silicon Image, Inc., Sunnyvale, CA (US);
Abstract
Embodiments of the invention are generally directed to detection of cable connections for electronic devices. An embodiment of an apparatus includes a port for the connection of a cable, the port being compatible with a first protocol and a second protocol, the port including a connector for the second protocol, the port including multiple pins including a first pin and a second pin. The apparatus further includes a pull-up resistor coupled between the first pin and a voltage source, a pull-down resistor coupled between the second pin and ground, and a voltage detection element coupled with the second pin. The apparatus is to determine that a cable compatible with the first protocol is connected to the port if the voltage detection element detects a voltage above a first threshold.