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Apparatus for receiving and decoding a broadcast signal
| Details |
Inventors: Maeda, Takio; Henmi, Hidemi; Yamaguchi, Namio; Kandaka, Isao;
Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP)
Primary Examiner: Hsia; Sherrie
Assistant Examiner:
Attorney, Agent or Firm: Ratner & Prestia
A data broadcast receiving apparatus used in a system is combined with another transmission line such as telephone circuit. By receiving a television broadcast having a data broadcast signal, such as a teletext signal, superposed on the television broadcast signal, in which a first auxiliary information signal contained in the data broadcast signal and a second auxiliary information signal from the other transmission line are extracted, a control procedure is created responsive to the first and second auxiliary information signals, and the data broadcast signal and main information from the other transmission line are processed responsive to the control procedure. |
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DETAILED DESCRIPTION It is hence an object of the invention to process the data broadcast signal, and two pieces of main information from other transmission line efficiently according to the purpose, in a data broadcast receiving apparatus used in a system combined with other transmission line such as telephone circuit, for receiving television broadcast having data broadcast signal such as teletext signal superposed on television broadcast signal.
To achieve the object, the invention comprises data broadcast decoding means for decoding data broadcast signal superposed on television broadcast into first main information and auxiliary information, display means for displaying video signal of its television broadcast or data broadcast, interface means for input and output of second main information and auxiliary information from an external device connected to a telephone circuit, and control means for receiving first auxiliary information signal contained in the data broadcast signal from the data broadcast decoding means and second auxiliary information signal from the interface means, creating control procedure on the basis of the first and second auxiliary information signals, and processing the data from the data broadcast decoding means and interface means.
Accordingly, the first and second main information can be processed efficiently by combining the first auxiliary information such as program superposed on television broadcast signal with second auxiliary information from server or other transmission line such as telephone circuit.
Concerning effective utilization of telephone number information as first auxiliary information contained in the data transmission signal, the data broadcast receiving apparatus comprises a data broadcast decoder unit for decoding data broadcast signal superposed on television broadcast, a display unit for displaying video signal of television broadcast or data broadcast, a modem connected to a telephone circuit, and a control unit for registering preliminarily the telephone number information of online service from the data broadcast decoder unit, and dialing the telephone number automatically through the modem to connect online service with the response server when the user specifies the telephone number in response to the online service information through the modem, whereby information can be obtained efficiently from other transmission line by using the telephone number
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Processing Data 
