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.

Date of Patent:
Aug. 23, 2016

Filed:

Jun. 04, 2014
Applicant:

Mstar Semiconductor, Inc., Hsinchu Hsien, TW;

Inventors:

Meng-Che Tsai, Zhubei, TW;

Yu-Cheng Kuo, Zhubei, TW;

Assignee:

MStar Semiconductor, Inc., Hsinchu Hsien, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); H04L 9/32 (2006.01); H04L 9/14 (2006.01); G06F 21/85 (2013.01); G06F 3/048 (2013.01); H04L 29/06 (2006.01); H04M 1/725 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3226 (2013.01); G06F 3/048 (2013.01); G06F 21/85 (2013.01); H04L 9/14 (2013.01); H04L 63/0869 (2013.01); H04L 63/0435 (2013.01); H04L 2209/80 (2013.01); H04M 1/72527 (2013.01);
Abstract

A signal processing method for a display device is provided. The display device is capable of connecting a portable consumer electronic device via a high-definition link (MHL) port. Via the communication bus (CBUS) in the MHL port, a set of encryption codes is provided to the portable consumer electronic device. Based on an encrypted identification fed back from the portable consumer electronic device, it is determined whether the portable consumer electronic device passes authentication. If the portable consumer electronic device passes the authentication, when a human interface device provides a user command to the display device, the user command is encrypted according to the set of encryption codes to generate an encrypted user command compliant to the CBUS specification. Via the CBUS of the MHL port, the encrypted user command is provided to the portable consumer electronic device.


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