A video signal transmission device, for transmitting additional information through a video signal including an active section where pixel data is transmitted and a blank section where the pixel data is not transmitted, is provided. The device includes a packer configured to receive the video signal and the additional information, and in response to a bit value with respect to the additional information being changed, insert a signal representing a change of the bit value into the video signal, adjust the blank section according to insertion of the signal representing the change of the bit value, and output the video signal where the blank section has been adjusted and an encoder configured to encode the video signal where the blank section has been adjusted.

A transmitter apparatus is provided with a first multi-value signal generator to convert the non-video signal of natural number anatural number M bits other than a video signal into a multi-value signal of a multi-value number 2.sup.aM and to output a resulting signal, a second multi-value signal generator to convert the video signal of natural number anatural number N bits into a multi-value signal of a multi-value number 2.sup.aN larger than the multi-value number 2.sup.aM and to output a resulting signal, and a transmission driver circuit to transmit the multi-value signal of the multi-value number 2.sup.aM in at least partial time interval of a blanking time interval and to transmit the multi-value signal of the multi-value number 2.sup.aN in an active time interval.

A transmitter apparatus is provided with a first multi-value signal generator to convert the non-video signal of natural number anatural number M bits other than a video signal into a multi-value signal of a multi-value number 2.sup.aM and to output a resulting signal, a second multi-value signal generator to convert the video signal of natural number anatural number N bits into a multi-value signal of a multi-value number 2.sup.aN larger than the multi-value number 2.sup.aM and to output a resulting signal, and a transmission driver circuit to transmit the multi-value signal of the multi-value number 2.sup.aM in at least partial time interval of a blanking time interval and to transmit the multi-value signal of the multi-value number 2.sup.aN in an active time interval.

One embodiment relates to an electronic apparatus including a video processor and a video interface controller. The video processor transmits first uncompressed video data and high dynamic range (HDR) information in a first transmission format. The HDR information is associated with each video frame of the first uncompressed video data. The first transmission format includes a first non-blanking region in each video frame. The video interface controller receives the first uncompressed video data and the HDR information from the video processor in the first transmission format. The video interface controller transmits second uncompressed video data and the HDR information to an external device in a second transmission format. The second uncompressed video data corresponds to the first uncompressed video data. The second transmission format includes a second non-blanking region in each video frame, and the first non-blanking region is larger than the second non-blanking region.

One embodiment relates to an electronic apparatus including a video processor and a video interface controller. The video processor transmits first uncompressed video data and high dynamic range (HDR) information in a first transmission format. The HDR information is associated with each video frame of the first uncompressed video data. The first transmission format includes a first non-blanking region in each video frame. The video interface controller receives the first uncompressed video data and the HDR information from the video processor in the first transmission format. The video interface controller transmits second uncompressed video data and the HDR information to an external device in a second transmission format. The second uncompressed video data corresponds to the first uncompressed video data. The second transmission format includes a second non-blanking region in each video frame, and the first non-blanking region is larger than the second non-blanking region.

An upstream video processor may perform video processing upon video data to created processed video data. The video processing may include at least one of color correction, contrast correction, gamma correction, sharpness enhancement, and edge enhancement. Metadata indicative of the performed video processing may also be generated. The processed video data and metadata may be passed to a downstream video processor, the latter for use in determining what further video processing, if any, to apply. An intermediate video processor may receive video data and metadata indicating video processing performed thereupon by an upstream video processor. Based on the received metadata, additional video processing may be performed, and new metadata indicating the additional video processing may be generated. Composite metadata may be generated from the received and new metadata and may be passed along with the processed video data to a downstream video processor for use in determining what further video processing, if any, to apply.

An upstream video processor may perform video processing upon video data to created processed video data. The video processing may include at least one of color correction, contrast correction, gamma correction, sharpness enhancement, and edge enhancement. Metadata indicative of the performed video processing may also be generated. The processed video data and metadata may be passed to a downstream video processor, the latter for use in determining what further video processing, if any, to apply. An intermediate video processor may receive video data and metadata indicating video processing performed thereupon by an upstream video processor. Based on the received metadata, additional video processing may be performed, and new metadata indicating the additional video processing may be generated. Composite metadata may be generated from the received and new metadata and may be passed along with the processed video data to a downstream video processor for use in determining what further video processing, if any, to apply.

One embodiment relates to an electronic apparatus including a video processor and a video interface controller. The video processor transmits first uncompressed video data and high dynamic range (HDR) information in a first transmission format. The HDR information is associated with each video frame of the first uncompressed video data. The first transmission format includes a first non-blanking region in each video frame. The video interface controller receives the first uncompressed video data and the HDR information from the video processor in the first transmission format. The video interface controller transmits second uncompressed video data and the HDR information to an external device in a second transmission format. The second uncompressed video data corresponds to the first uncompressed video data. The second transmission format includes a second non-blanking region in each video frame, and the first non-blanking region is larger than the second non-blanking region.

One embodiment relates to an electronic apparatus including a video processor and a video interface controller. The video processor transmits first uncompressed video data and high dynamic range (HDR) information in a first transmission format. The HDR information is associated with each video frame of the first uncompressed video data. The first transmission format includes a first non-blanking region in each video frame. The video interface controller receives the first uncompressed video data and the HDR information from the video processor in the first transmission format. The video interface controller transmits second uncompressed video data and the HDR information to an external device in a second transmission format. The second uncompressed video data corresponds to the first uncompressed video data. The second transmission format includes a second non-blanking region in each video frame, and the first non-blanking region is larger than the second non-blanking region.

A data transfer device includes: a video transmission circuit 24, transmitting video data from a first device 10 to a second device 50 during a video period as a timing of transmitting the video data; a transmission part 32, 72, transmitting non-video data between the first device 10 and the second device 50 during a video blanking period as a timing of transmitting the non-video data; and a monitoring part 30, 70, during the video blanking period, controlling the transmission part 32, 72 to stop transmission of the non-video data from the second device 50 to the first device 10 in response to presence of a signal from the first device 10 and stop transmission of the non-video data from the first device 10 to the second device 50 in response to presence of a signal from the second device 50.