BROADCASTING SERVICE SYSTEM USING MOBILE COMMUNICATION TERMINAL
First Claim
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1. A digital video and audio data service system for a subscriber terminal using a mobile telecommunications network, comprising:
- a digital video and audio data receiver which receives digital video and audio data from a content provider;
a format converter for converting the received digital video and audio data into format-converted data having a format that is compatible with the subscriber terminal;
a medium storage for storing at least one of said received digital video and audio data and the format-converted data; and
a transmitter which transmits the format-converted data via an allotted communication channel of the mobile telecommunications network,wherein the format converter comprises a transcoder which includes a decoding means which decodes the received digital video and audio data complying with a digital television broadcasting standard and then encodes the thusly decoded digital video and audio data into a format compatible with transmission over the allotted communication channel of the mobile telecommunications network, and a converting-controlling means which controls an encoding rate of the transcoder to comply with a transmission rate of the mobile telecommunications network.
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Abstract
A system capable of receiving a television signal and telephone signal on a mobile communication terminal. In particular, the system is capable of displaying each television broadcast on a monitor of the mobile communication terminal by receiving the video and audio signal, decoding it, and outputting it to the monitor of the mobile communication terminal. In addition, the system can transmit an EPG (Electronic Program Guide) data corresponding to a subscriber request and a selected broadcasting program in real time.
27 Citations
19 Claims
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1. A digital video and audio data service system for a subscriber terminal using a mobile telecommunications network, comprising:
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a digital video and audio data receiver which receives digital video and audio data from a content provider; a format converter for converting the received digital video and audio data into format-converted data having a format that is compatible with the subscriber terminal; a medium storage for storing at least one of said received digital video and audio data and the format-converted data; and a transmitter which transmits the format-converted data via an allotted communication channel of the mobile telecommunications network, wherein the format converter comprises a transcoder which includes a decoding means which decodes the received digital video and audio data complying with a digital television broadcasting standard and then encodes the thusly decoded digital video and audio data into a format compatible with transmission over the allotted communication channel of the mobile telecommunications network, and a converting-controlling means which controls an encoding rate of the transcoder to comply with a transmission rate of the mobile telecommunications network. - View Dependent Claims (2, 3, 4, 5)
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6. A method of receiving multimedia contents by a subscriber terminal, the method comprising:
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receiving signals and additional information from a broadcast content provider via a mobile telecommunications network, the signals and additional information having been converted into a format compatible with the mobile telecommunications network after decoding the received signals complying with a digital television broadcasting standard and then encoding the thusly decoded signals into a format compatible with transmission over a communication channel of the mobile telecommunications network, and controlling an encoding rate of to comply with a transmission rate of the mobile telecommunications network; receiving user selection of desired multimedia contents based on the received additional information; informing the broadcast content provider via the mobile telecommunications network about the user selection of desired multimedia contents; and receiving the desired multimedia contents from the broadcast content provider via a mobile telecommunications network. - View Dependent Claims (7, 8, 9)
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10. A method of receiving multimedia contents by a subscriber terminal, the method comprising:
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receiving signals and additional information from a broadcast content provider via a mobile communications network, the signals and additional information having been converted into a format compatible with the mobile communications network after decoding the received signals complying with a digital television broadcasting standard and then encoding the thusly decoded digital signals into a format compatible with transmission over a communication channel of the mobile telecommunications network, and controlling an encoding rate of to comply with a transmission rate of the mobile telecommunications network; displaying Electronic Program Guide (EPG) data to a subscriber of the subscriber terminal; receiving subscriber selection of desired multimedia contents based on the displayed EPG data; sending a request to the broadcast content provider in order to receive the desired multimedia contents selected by the subscriber from the displayed EPG data; receiving authentication from the mobile communications network in order to receive the desired multimedia contents selected by the subscriber; and receiving the desired multimedia contents from the broadcast content provider via a mobile communications network. - View Dependent Claims (11, 12, 13)
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14. A digital broadcasting service system comprising:
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a digital television signal processing unit configured to perform demodulating, multiplexing and decoding of digital video and audio data, and to provide multiplexed output data and decoded output data; a media storage unit configured to receive and store information from the digital television signal processing unit; a data processing and converting unit configured to receive the decoded output data from the digital television signal processing unit, to perform further decoding and protocol conversion thereon, and to provide protocol-converted output data; and a transcoder and transmission unit configured to receive the multiplexed output data from the digital television signal processing unit, to retrieve the information stored in the media storage unit, and to receive the protocol-converted output data from the data processing and converting unit, and configured to perform transcoding, media synchronization, wireless data protocol processing and rate control thereon to provide wireless streaming outputs to a user who receives and reproduces the digital video and audio data via a mobile terminal compatible with a mobile telecommunications network. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification