Method and apparatus for satellite digital audio
DC
First Claim
1. A wireless digital audio receiver for receiving one or more carrier waves containing digital audio data and audio program information, the receiver comprising:
- a user interface to enable a user to select digital audio data from a plurality of digital audio data within the carrier waves;
a tuner operably coupled to the user interface to tune to a frequency associated with a carrier wave containing the selected digital audio data;
a demodulator coupled to the tuner to extract the selected digital audio data and the audio program information from the carrier wave; and
a digital to analog converter to convert the selected digital audio data into an analog signal for playback by the user.
4 Assignments
Litigations
1 Petition
Accused Products
Abstract
A method and apparatus are provided for a first controlled device, such as a wireless local transmitter that accepts a plurality of digital audio signals and corresponding program information signals converted from a controlled source, such as the encoded digital data provided by a digital data signal source, typically a community antenna television (CATV) cable or direct broadcast satellite, then modulates said digital audio and corresponding program information signals on different carrier frequencies and transmits the modulated signals to a plurality of second controlled devices, such as remote digital receiver/tuners that demodulate said signals to output music in stereophonic sound and display the corresponding program information by means of an alphanumeric display. The first and second controlled devices contain microprocessor systems for communicating, controlling, storing, processing, and display of digital data within the operation of the respective system. A high speed, error free digital signal protocol is utilized for transmitting digital audio and corresponding program information signals to and from the digital receiver/tuner. The digital data transmitter and digital receiver/tuners utilize the 44.1 kilohertz (kHz) Compact Disc (CD) clock signal embedded in digital audio signals provided by an established delivery system to derive clocking signals for reception and processing of digital audio signals and for implementing the display information communications protocol.
116 Citations
19 Claims
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1. A wireless digital audio receiver for receiving one or more carrier waves containing digital audio data and audio program information, the receiver comprising:
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a user interface to enable a user to select digital audio data from a plurality of digital audio data within the carrier waves; a tuner operably coupled to the user interface to tune to a frequency associated with a carrier wave containing the selected digital audio data; a demodulator coupled to the tuner to extract the selected digital audio data and the audio program information from the carrier wave; and a digital to analog converter to convert the selected digital audio data into an analog signal for playback by the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A wireless digital audio player, comprising:
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a user interface to enable a user to select a digital audio program from a plurality of digital audio programs; a tuner to tune to a radio frequency signal associated with the selected digital audio program; a demodulator to receive from the tuner a radio frequency signal and to demodulate the radio frequency signal, wherein the radio frequency signal contains digital audio data and program information corresponding to the selected digital audio program; a processor coupled to the user interface to demultiplex the digital audio data in response to the selected digital audio program, in order to separate program information from audio data; and a digital to analog converter to convert the audio data corresponding to the selected digital audio program into an analog signal for playback by the user. - View Dependent Claims (16, 17, 18, 19)
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Specification
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- Resources
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Current AssigneeDigital Stream IP, LLC (Dominion Harbor Enterprises, LLC)
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Original AssigneeDIMA Communications LLC
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InventorsKnox, Gregory
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Primary Examiner(s)West, Lewis G
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Application NumberUS12/363,593Publication NumberTime in Patent Office865 DaysField of Search455/3.05, 455/3.01, 455/3.06, 455/3.02, 725/153US Class Current455/3.06CPC Class CodesG05B 15/02 electricG06F 16/60 of audio dataG06F 16/63 QueryingG06F 16/68 Retrieval characterised by ...G06F 3/03547 Touch pads, in which finger...G06F 3/041 Digitisers, e.g. for touch ...G06F 3/04842 Selection of displayed obje...G06F 3/04847 Interaction techniques to c...G06F 3/165 Management of the audio str...G06Q 20/123 Shopping for digital contentG06Q 30/0203 Market surveys; Market pollsH04H 20/08 among terminal devicesH04H 20/28 Arrangements for simultaneo...H04H 20/30 by a single channelH04H 20/61 for local area broadcast, e...H04H 20/79 using downlink of the CATV ...H04H 60/23 using cryptography, e.g. en...H04H 60/80 characterised by transmissi...H04H 60/92 for local areaH04N 21/41265 having a remote control dev...View All
