Digital audio transmission over a digital visual interface (DVI) link
OwnerMohammad Hossein Shakiba, Sasan Nikneshan +1inventors
InventorsMohammad Hossein Shakiba, Sasan Nikneshan, Mehrdad Negahban
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Abstract
In general, a system and method for routing audio over a Digital Visual Interface (DVI) link is described herein. In one embodiment, the system comprises a a Digital Audio Interface (DAI) transmitter and a DAI receiver. Coupled to a fourth channel of the DVI link that transmits a pixel-rate clock signal, the DAI transmitter modulates the pixel-rate clock signal by input digital audio. The DAI transmitter sends the modulated clock signal to the DAI receiver. The DAI receiver recovers the digital audio from the modulated pixel-rate clock signal.
Claims23
A Digital Audio Interface (DAI) transmitter, comprising:
- a first input to receive a clock signal over a selected channel of a Digital Visual Interface (DVI) link;
- a second input to receive digital audio;
- and
- a modulator coupled to the first input and the second input, the modulator to modulate the clock signal by the digital audio.
The DAI transmitter further comprising:
- an encoder coupled to the second input, the encoder to encode the digital audio before receipt by the modulator.
A Digital Audio Interface (DAI) receiver, comprising:
- an input to receive a modulated clock signal being formed by a clock signal over a Digital Visual Interface (DVI) link modulated by digital audio;
- and
- a demodulator coupled to the input, the demodulator to recover the digital audio from the modulated clock signal.
A system comprising:
- a Digital Visual Interface (DVI) link including a plurality of channels, one of the plurality of channels to transmit a pixel-rate clock signal;
- a Digital Audio Interface (DAI) transmitter coupled to the one of the plurality of channels, the DAI transmitter to modulate the pixel-rate clock signal by digital audio;
- and
- a DAI receiver coupled to the DAI transmitter, the DAI receiver to recover the digital audio from the modulated pixel-rate clock signal.
A method comprising:
- receiving a clock signal over a channel of a Digital Visual Interface (DVI) link;
- receiving digital audio;
- modulating the clock signal by the digital audio to produce a modulated clock signal;
- and
- outputting the modulated clock signal for subsequent recovery of the digital audio.
A method for transmission of digital audio over a Digital Visual Interface (DVI) link, the method comprising:
- receiving a clock signal over a channel of the DVI link;
- receiving digital audio;
- encoding the digital audio;
- modulating the clock signal by the encoded digital audio to produce a modulated clock signal;
- and
- outputting the modulated clock signal for subsequent recovery of the digital audio.
Dependencies are inferred from the claim text.