US 12,335,506 B2
Electronic device and associated signal processing method
Wun-Lin Chang, HsinChu (TW); Pui-Kei Leong, HsinChu (TW); and Ching-Sheng Cheng, HsinChu (TW)
Assigned to Realtek Semiconductor Corp., HsinChu (TW)
Filed by Realtek Semiconductor Corp., HsinChu (TW)
Filed on Aug. 23, 2023, as Appl. No. 18/237,380.
Claims priority of application No. 111148038 (TW), filed on Dec. 14, 2022.
Prior Publication US 2024/0205443 A1, Jun. 20, 2024
Int. Cl. H04N 19/46 (2014.01); H04N 21/4363 (2011.01)
CPC H04N 19/46 (2014.11) [H04N 21/43635 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a decoder circuit, arranged to decode an input signal to generate a decoded signal;
an image processing circuit, arranged to perform image processing upon the decoded signal to generate a processed image data;
a detection circuit, arranged to detect a timing of an active display area and a vertical synchronization signal in the processed image data, to generate a detection result;
a transmission interval determination circuit, coupled to the detection circuit, and arranged to determine a transmission interval of the processed image data according to the detection result;
an auxiliary data extraction circuit, arranged to extract an auxiliary data from the decoded signal; and
an encoder circuit, arranged to place the auxiliary data in the transmission interval of the processed image data, and perform encoding to generate an output signal;
wherein the transmission interval determination circuit calculates a width of a vertical blanking interval of the processed image data according to the detection result, for determining the transmission interval of the processed image data.