Realtek Semiconductor Inc.

Pui-Kei Leong

Wun-Lin Chang

Ching-Sheng Cheng

Yi-Shu Chang

Lien-Hsiang Sung

An electronic device includes a decoder circuit, an image processing circuit, a detection circuit, a transmission interval determination circuit, an auxiliary data extraction circuit, and an encoder circuit. The decoder circuit decodes an input signal to generate the decoded signal. The image processing circuit performs image processing on the decoded signal to generate processed image data. The detection circuit detects timing of an active display area and a vertical synchronization signal in the processed image data to generate a detection result. The transmission interval determination circuit determines a transmission interval of the processed image data according to the detection result. The auxiliary data extraction circuit extracts auxiliary data from the decoded signal. The encoder circuit places the auxiliary data in the transmission interval of the processed image data, and performs encoding to generate an output signal.

Electronic device and associated signal processing method

A backlight control device adapted to control a plurality of backlight sources is provided. The backlight control device includes a timing control circuitry and a local-dimming control circuitry. The timing control circuitry is configured to generate a transmission packet according to a first customized content specification, where the transmission packet includes control information and brightness information. The timing control circuitry includes a differential circuit, where the differential circuit is configured to transmit the transmission packet according to a differential voltage level. The local-dimming control circuitry includes a receiving circuit electrically coupled to the differential circuit. The receiving circuit is configured to receive the transmission packet. The local-dimming control circuitry is configured to transmit a light source control signal according to the control information and the brightness information.

Backlight control device

A multimedia audio/video system includes a multimedia audio/video transmitting end and a multimedia audio/video receiving end. The multimedia audio/video transmitting end includes a multimedia data generator and a first data converter. The multimedia data generator is used to generate a multimedia data conforming to a first transmission protocol. The first data converter is used to convert the multimedia data conforming to the first transmission protocol into a multimedia data conforming to a second transmission protocol. The multimedia audio/video receiving end includes a second data converter which is used to convert the multimedia data conforming to the second transmission protocol into the multimedia data conforming to the first transmission protocol. The multimedia data conforming to the first transmission protocol is transmitted via multiple cables, while the multimedia data conforming to the second transmission protocol is transmitted via a single cable.

Multimedia audio/video system

The present disclosure discloses an image data transmission apparatus having synchronous data transmission mechanism. Output stage circuits respectively receive and store image data corresponding to a part of a display frame. A primary switch circuit is coupled to a primary output stage circuit of the output stage circuits so as to maintain a control voltage of a control terminal at a first level when a primary frame aligning signal having the latest timing is not received from the primary output stage circuit, and switches the control voltage to a second level when the primary frame aligning signal is received. The output stage circuits output the image data to an image data receiving apparatus to display the display frame synchronously when the output stage circuits receive the control voltage having the second level through voltage transmission paths having the same signal transmission time.

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Hsinchu, Taiwan

Pui-Kei Leong