USB based microphone system
October 23, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3860921 Muting circuit Muting apparatus in car audio system Multiplexed digital audio and control/status serial protocol Method and system for accessing associated data sets in a multimedia environment in a data processing system Managing audio data using a graphics display controller Power management coordinator system and interface Automatic dynamic VOX circuit Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles System having independently addressable bus interfaces coupled to serially connected multi-ported signal distributors generating and maintaining frame based polling schedule favoring isochronous peripherals InventorAssigneeApplicationNo. 740019 filed on 10/23/1996US Classes:700/94, Digital audio data processing system381/2, Broadcast or multiplex stereo381/77ONE-WAY AUDIO SIGNAL PROGRAM DISTRIBUTIONExaminersPrimary: Chang, VivianAttorney, Agent or FirmForeign Patent References
International ClassG06F 017/00AbstractA powered microphone for use with a personal computer comprising a Universal Serial Bus interface for coupling the powered microphone to a Universal Serial Bus. A circuit coupled to the Universal Serial Bus interface is configured to integrate a plurality of data streams, including clock data, digital audio data, and control data into Universal Serial Bus compatible data. A gain controller is coupled to provide control signals to a power supply and amplifier; and an audio data circuit is coupled to receive clock data and analog audio data. The audio data circuit includes an analog-to-digital converter for converting the analog audio data to a digital audio signal, and the audio data circuit is further configured to receive an audio control signal from the gain controller.Other References
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