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:
Nov. 01, 2022

Filed:

Feb. 17, 2021
Applicant:

Realtek Semiconductor Corporation, Hsinchu, TW;

Inventors:

Lien-Hsiang Sung, Hsinchu, TW;

Wun-Lin Chang, Hsinchu, TW;

Shan-Yuan Yang, Hsinchu, TW;

Tzu-Min Yeh, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 21/2368 (2011.01); H04N 21/434 (2011.01); H04N 21/63 (2011.01); H04N 21/233 (2011.01);
U.S. Cl.
CPC ...
H04N 21/2368 (2013.01); H04N 21/2335 (2013.01); H04N 21/4341 (2013.01); H04N 21/4343 (2013.01); H04N 21/63 (2013.01);
Abstract

A control signal transmission circuit and a control signal receiving circuit for an audio/video interface are provided. The control signal transmission circuit includes an audio/video interface encoder, a signal packaging circuit and a data allocator. The audio/video interface encoder is configured to receive an audio packet and supports a user-defined packet format. The signal packaging circuit is configured to receive a first control signal and package the first control signal into a control data packet according to the user-defined packet format. The data allocator is configured to receive a video data and a second control signal and to mix the second control signal and the video data to generate a mixed data packet. The audio/video interface encoder packages the control data packet, the mixed data packet and the audio packet according to an audio/video transmission protocol to generate an audio/video and control data.


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