Method and apparatus for the separation of data from digital broadcast signals for distribution via a computer network to clients
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Abstract
The present invention provides a method, apparatus, and system to separate data from a digital broadcast signal for distribution via a computer network to clients. A data separation device separates digital video information, digital audio information and digital data from a digital broadcast signal. The data separation device can be installed at a Network Operating Center (NOC) (e.g. a cable or broadcast NOC). A router coupled to the data separation device transmits the digital data to a computer network (e.g. the Internet) for access by a client receiver system. A digital-to-analog (D/A) converter converts the digital video and audio information into analog video and audio information, respectively, for transport to the client receiver system. The client receiver system can include a computer having a modem, as well as, a display (e.g. a TV or computer monitor). The computer receives the digital data from the computer network via the modem and displays the digital data in conjunction with the analog video and audio information on the display.
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Citations
57 Claims
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1-40. -40. (canceled)
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41. A system comprising:
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a Network Operating Center (NOC), including;
a demodulator to demodulate a digital broadcast signal from a carrier frequency, the digital broadcast signal being transmitted from a satellite;
a demultiplexer to separate digital video information, digital audio information, and digital data from the digital broadcast signal;
a router to transmit the digital data received from the demultiplexer through a computer network;
a digital-to-analog (D/A) converter to convert the digital video information and digital audio information into analog video information and analog audio information;
a multiplexer to multiplex the analog audio information and the analog video information into combined analog audio/video (A/V) information; and
a personal computer including a modem coupled the computer network;
wherein the analog A/V information is transmitted through an analog transmission system to an analog TV receiver card of the personal computer and the digital data is routed through the computer network to the modem of the personal computer and wherein the personal computer is coupled to a display device for the display of the analog A/V information in conjunction with the digital data on the display device. - View Dependent Claims (42, 43, 44, 45, 46, 47)
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48. A method comprising:
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demodulating a digital broadcast signal from a carrier frequency at a Network Operating Center (NOC), the digital broadcast signal being transmitted from a satellite;
demultiplexing the digital broadcast signal into separate digital video information, digital audio information, and digital data from the digital broadcast signal;
routing digital data received from the demultiplexer through a computer network;
converting the digital video information and digital audio information into analog video information and analog audio information;
multiplexing the analog audio information and the analog video information into combined analog audio/video (A/V) information; and
wherein the combined analog A/V information is transmitted through an analog transmission system to an analog TV receiver card of a personal computer and the digital data is routed through the computer network to a modem of the personal computer and wherein the personal computer is coupled to a display device for the display of the analog A/V information in conjunction with the digital data on the display device. - View Dependent Claims (49, 50, 51, 52, 53, 54)
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55. A system comprising:
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a broadcast NOC Network Operating Center (NOC), comprising;
a demodulator to demodulate a digital broadcast signal from a carrier frequency, the digital broadcast signal being transmitted from a satellite;
a demultiplexer to separate digital video information, digital audio information, and digital data from the digital broadcast signal, wherein the digital video information is compatible with a motion pictures experts group (MPEG) standard and the digital data is compatible with at least one of advanced television enhancement forum (ATVEF) standard or an Internet Protocol (IP) standard;
a router to transmit the digital data received from the demultiplexer through a computer network;
a digital-to-analog (D/A) converter to convert the digital video information and digital audio information into analog video information and analog audio information;
a multiplexer to multiplex the analog audio information and the analog video information into combined analog audio/video (A/V) information, wherein the analog video and analog audio information are transmitted over-the-air; and
a personal computer including a modem coupled the computer network;
wherein the analog A/V information is transmitted through an analog transmission system over-the-air to an antenna coupled to an analog TV receiver card of the personal computer and the digital data is routed through the computer network to a modem of the personal computer and wherein the personal computer is coupled to a display device for the display of the analog A/V information in conjunction with the digital data on the display device. - View Dependent Claims (56, 57)
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Specification