Transmission system, transmission apparatus, and transmission method for transmitting video data
First Claim
1. A transmission system, comprising:
- a source-side apparatus for transmitting data using a transmission scheme in which data is transmitted in units of 8 bits, the units corresponding to the clock periods of a pixel clock; and
a sink-side apparatus;
wherein the source-side apparatus includes;
a video data generator configured to generate video data such that the number of bits representing any component of color data or luminance and color-difference data of any one pixel is a predetermined number that is not an integer multiple of 8 bits,a transmission data arrangement section configured to arrange the video data generated by the video data generator within the units of 8 bits of the transmission scheme by first inserting, between the bits representing a given pixel of a given component of the generated video data and the bits representing a next pixel of the given component of the generated video data, a respective number of bits of data differing from the generated video data such that a first integer multiple of a sum of the predetermined number of bits and the respective number bits equals a second integer multiple of 8, and then dividing the generated video data and the inserted data among the units of 8 bits, anda sending section configured to send the generated video data and the inserted data arranged in units of 8 bits each by the transmission data arrangement section over individual transmission lines for each component of the color data or the luminance and color-difference data in synchronization with the pixel clock; and
wherein the sink-side apparatus includes;
a receiver configured to detect the sent data sent by sending section over the transmission lines in units of 8 bits in synchronization with the pixel clock, anda data separator configured to separate the generated video data of the predetermined number of bits and the inserted data from the received data in units of 8 bits received by the receiver.
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Accused Products
Abstract
An HDMI(R) source determines whether or not an HDMI(R) sink can receive a sub-signal based on VSDB of E-EDID. When the HDMI(R) sink can receive the sub-signal, the HDMI(R) source adds a sub-signal to pixel data of a main image composed of pixel data whose number of bits is smaller than that of transmission pixel data transmitted by a transmitter, thereby constructing transmission pixel data. This data is transmitted by the transmitter through TMDS channels #0 to #2. Furthermore, the HDMI(R) source transmits a general control packet containing sub-signal information indicating whether or not the sub-signal is contained in the transmission pixel data in the control period of a vertical blanking period. The present invention can be applied to, for example, HDMI(R).
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Citations
5 Claims
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1. A transmission system, comprising:
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a source-side apparatus for transmitting data using a transmission scheme in which data is transmitted in units of 8 bits, the units corresponding to the clock periods of a pixel clock; and a sink-side apparatus; wherein the source-side apparatus includes; a video data generator configured to generate video data such that the number of bits representing any component of color data or luminance and color-difference data of any one pixel is a predetermined number that is not an integer multiple of 8 bits, a transmission data arrangement section configured to arrange the video data generated by the video data generator within the units of 8 bits of the transmission scheme by first inserting, between the bits representing a given pixel of a given component of the generated video data and the bits representing a next pixel of the given component of the generated video data, a respective number of bits of data differing from the generated video data such that a first integer multiple of a sum of the predetermined number of bits and the respective number bits equals a second integer multiple of 8, and then dividing the generated video data and the inserted data among the units of 8 bits, and a sending section configured to send the generated video data and the inserted data arranged in units of 8 bits each by the transmission data arrangement section over individual transmission lines for each component of the color data or the luminance and color-difference data in synchronization with the pixel clock; and wherein the sink-side apparatus includes; a receiver configured to detect the sent data sent by sending section over the transmission lines in units of 8 bits in synchronization with the pixel clock, and a data separator configured to separate the generated video data of the predetermined number of bits and the inserted data from the received data in units of 8 bits received by the receiver. - View Dependent Claims (2)
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3. A transmission method for transmitting data using a transmission scheme in which data is transmitted in units of 8 bits, the units corresponding to the clock periods of pixel clock, the transmission method comprising:
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generating video data to be transmitted such that the number of bits representing any component of color data or luminance and color-difference data of any one pixel is a predetermined number of bits that is not an integer multiple of 8 bits; arranging the generated video data of the predetermined number of bits within the units of 8 bits of the transmission scheme by first inserting, between the bits representing a given pixel of a given component of the generated video data and the bits representing a next pixel of the given component of the generated video data, a respective number of bits of data differing from the generated video data such that a first integer multiple of a sum of the predetermined number of bits and the respective number bits equals a second integer multiple of 8, and then dividing the generated video data and the inserted data among the units of 8 bits; and transmitting the generated video data and the inserted data arranged in units of 8 bits each by the transmission data arrangement section over individual transmission lines for each component of the color data or the luminance and color-difference data from a source-side apparatus to a sink-side apparatus in synchronization with the pixel clock.
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4. A transmission apparatus for transmitting data using a transmission scheme in which data is transmitted in units of 8 bits, the units corresponding to the clock periods of pixel clock, the transmission apparatus comprising:
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a video data generator configured to generate video data such that the number of bits representing any component of color data or luminance and color-difference data of any one pixel is a predetermined number that is not an integer multiple of 8 bits; a transmission data arrangement section configured to arrange the video data generated by the video data generator within the units of 8 bits of the transmission scheme by first inserting, between the bits representing a given pixel of a given component of the generated video data and the bits representing a next pixel of the given component of the generated video data, a respective number of bits of data differing from the generated video data such that a first integer multiple of a sum of the predetermined number of bits and the respective number bits equals a second integer multiple of 8, and then dividing the generated video data and the inserted data among the units of 8 bits; and a sending section configured to send the generated video data and the inserted data arranged in units of 8 bits each by the transmission data arrangement section over individual transmission lines for each component of the color data or the luminance and color-difference data in synchronization with the pixel clock. - View Dependent Claims (5)
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Specification