METHOD AND APPARATUS FOR WIRELESS DIGITAL RADIO
2 Assignments
0 Petitions
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.
9 Citations
44 Claims
-
1-20. -20. (canceled)
-
21. A method comprising:
-
receiving, at a transmitter, a data stream containing digital audio and program information, wherein the program information includes digital data identifying at least a song title and an artist associated with the digital audio in a manner enabling a receiver to be employed to initiate purchase of the digital audio; converting the digital audio and the program information to a digital radio frequency (RF) signal; and transmitting the digital RF signal including the digital audio and the program information to a plurality of receivers each configured to selectively store at least a portion of the digital data enabling the respective receiver to initiate purchase of the digital audio. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. An apparatus comprising:
-
an input configured to receive a data stream containing digital audio and program information, wherein the program information includes digital data identifying at least a song title and an artist associated with the digital audio in a manner enabling a receiver to be employed to initiate purchase of the digital audio; a converter configured to convert the digital audio and the program information to a digital radio frequency (RF) signal; and a transmitter configured to transmit the digital RF signal including the digital audio and the program information to a plurality of receivers each configured to selectively store at least a portion of the digital data enabling the respective receiver to initiate purchase of the digital audio. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
-
-
41. A method comprising:
-
receiving multiple audio programs at a transmitter, each audio program containing (i) digital audio and (ii) program information including digital data identifying at least a song title and an artist associated with the digital audio in a manner enabling a receiver to be employed to initiate purchase of the digital audio; converting the digital audio and the program information of the audio programs to digital radio frequency (RF) signals; and transmitting the digital RF signals including the digital audio and the program information of the audio programs to a plurality of receivers each configured to selectively store at least a portion of the digital data of one or more audio programs enabling the respective receiver to initiate purchase of the digital audio of the one or more audio programs. - View Dependent Claims (42, 43, 44)
-
Specification