Method for setting mute flags to improve compatibilities and the high definition multimedia interface system using the same method
First Claim
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1. A source device that transmits data to a sink device using:
- High Definition Multimedia Interface (HDMI), comprising;
a transmitter for transmitting at least one of video data, audio data and auxiliary data to the sink device; and
a controller for controlling the source device to transmit a subpacket to the sink device in response to status change of the source device such that the sink device mutes either the video signal or the audio signal,wherein the control subpacket contains flags, one mute flag for muting the audio signal and one mute flag for muting the video signal of the sink device.
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Abstract
The present invention relates to an HDMI (High Definition Multimedia Interface) system, and more particularly, to a method for setting mute flag in connection with transmission of audio data and auxiliary data transmitted through HDMI system, and an HDMI system using the same method.
23 Citations
19 Claims
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1. A source device that transmits data to a sink device using:
- High Definition Multimedia Interface (HDMI), comprising;
a transmitter for transmitting at least one of video data, audio data and auxiliary data to the sink device; and a controller for controlling the source device to transmit a subpacket to the sink device in response to status change of the source device such that the sink device mutes either the video signal or the audio signal, wherein the control subpacket contains flags, one mute flag for muting the audio signal and one mute flag for muting the video signal of the sink device. - View Dependent Claims (2, 3, 4, 5, 6)
- High Definition Multimedia Interface (HDMI), comprising;
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7. A mute flag controlling method in a source device that transmits data to a sink device using High Definition Multimedia Interface (HDMI) comprising the steps of:
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detecting status change of the source device; generating the subpacket for the sink device; and transmitting the subpacket to the sink device such that the sink device mutes either the video signal or the audio signal in response to the status change of the source device, wherein the subpacket contains mute flags, one mute flag for muting the audio signal and one mute flag for muting the video signal of the sink device, wherein the subpacket is generated at the source device in response to status change of the source device and contains mute flags, one mute flag for muting the audio signal and one mute flag for muting the video signal of the sink device. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A sink device that receives data from source device using High Definition Multimedia Interface (HDMI), comprising:
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a receiver for receiving at least one of video data, audio data, and auxilary data from the source device; and a controller for controlling the sink device to mute either the video signal or the audio signal when the receiver receives control subpacket from the source device, wherein the control subpacket is generated at the source device in response to status change of the source device, and contains flags, one mute flag for muting the audio signal and one mute flag for muting the video signal of the sink device. - View Dependent Claims (15, 16)
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17. A mute flag controlling method in a sink device that receives data from a source device using a High Definition Multimedia Interface (HDMI), comprising the steps of:
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receiving a subpacket from the source device; and muting one of the video signal or audio signal according to the received subpacket, wherein the subpacket is generated at the source device in response to status change of the source device and contains mute flags, one mute flag for muting the audio signal and one mute flag for muting the video signal of the sink device. - View Dependent Claims (18, 19)
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Specification