Time-synchronized hardware controllers and related audio systems and circuitry
AssigneeMicrochip Technology Incorporated
InventorsMichael Rentschler, Thorben Link
Life of this patent
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Abstract
Synchronization for audio systems and related systems and circuitry are disclosed. An audio system includes a word select line of a digital audio interface, a serial clock line of the digital audio interface, and hardware circuitry. The hardware circuitry is configured to provide a word select signal to the word select line and a serial clock signal to the serial clock line. The word select signal is configured to indicate channels of a serial data signal provided to a serial data line of the digital audio interface. The hardware circuitry is also configured to synchronize the serial clock signal to a clock reference stream of an audio stream communicated via a network interface.
Claims20
An audio system, comprising:
- a word select line of a digital audio interface;
- a serial clock line of the digital audio interface;
- and
- hardware circuitry configured to:
- provide a word select signal to the word select line, the word select signal configured to indicate channels of a serial data signal provided to a serial data line of the digital audio interface;
- provide a serial clock signal to the serial clock line;
- and
- synchronize the serial clock signal to a clock reference stream of an audio stream communicated via a network interface.
Circuitry for controlling timing of communications, the circuitry comprising:
- a serial clock line;
- an enable gate electrically connected to the serial clock line, the enable gate configured to start provision of a serial clock signal to the serial clock line based, at least in part, on an assertion of a synchronization signal;
- and
- an event generator configured to assert the synchronization signal responsive to a presentation time stamp from a serial data signal, the presentation time stamp correlated to a synchronized time base, the enable gate and the event generator implemented using hardware circuitry.
Dependencies are inferred from the claim text.