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:
Aug. 10, 2021
Filed:
Mar. 04, 2020
Realtek Semiconductor Corp., HsinChu, TW;
Tsung-Hsuan Wu, Hsinchu County, TW;
Hsu-Jung Tung, Hsinchu County, TW;
Ching-Sheng Cheng, Nantou County, TW;
Realtek Semiconductor Corp., HsinChu, TW;
Abstract
The present invention provides a receiving circuit applied to an HDMI, wherein the receiving circuit includes a decoder, a frame key calculating circuit, a line key calculating circuit and a control circuit. In the operations of the receiving circuit, the decoder decodes a data stream to generate at least one image frame, the frame key calculating circuit is arranged to calculate a frame key according to the image frame, the line key calculating circuit is arranged to calculate a plurality of line keys according to the image frame, and the control circuit determines to turn off or turn on the line key calculating circuit according to whether or not the image frame is displayed on a display panel.