Apparatus and method for processing additional information in television
First Claim
1. An apparatus for processing additional information embedded in a television (TV) broadcast signal, said apparatus comprising:
- a demultiplexer for separating video data, audio data and the additional information from a channel decoded broadcast signal;
a controller for receiving the additional information separated by the demultiplexer, for extracting an additional information class code from the additional information, and for generating an additional information storage control signal and an additional information display control signal when the extracted additional information class code is included in additional information class codes selected by a user;
a memory responsive to the additional information storage control signal from said controller for storing the additional information in an area assigned to a type of the additional information;
an additional information class display signal generator responsive to the additional information display control signal from said controller for generating image data for displaying on a screen a type of information corresponding to the extracted additional information class code; and
a video signal processor for decoding the video data separated by the demultiplexer, for mixing the decoded video data and the image data generated by the additional information class display signal generator to obtain a mixed result, and for performing signal processing on the mixed result for display on a screen,wherein the image data generated by the additional information class display signal generator is icon image data representing the type of additional information.
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Accused Products
Abstract
An additional information processing apparatus and method selectively processes and stores additional information contained in a TV broadcast signal according to specifications set by a user, subdivides information of the type of additional information received in real time, and displays the information on a screen. Additional information contained in a broadcast signal is classified by type before transmission. Only additional information of the type(s) desired by a user is selected and acquired from the received additional information. The type(s) of additional information acquired is (are) displayed on a screen in real time. Accordingly, only the additional information needed by the user is selectively stored in memory and memory can be efficiently used. Since the type(s) of additional information received is (are) displayed on the screen in detail, the user can easily understand the type(s) of additional information being received currently so that the additional information can be effectively used. In addition, subdivided additional information suitable for the various classes of TV viewers can be developed so that additional information contents can be efficiently developed.
9 Citations
30 Claims
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1. An apparatus for processing additional information embedded in a television (TV) broadcast signal, said apparatus comprising:
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a demultiplexer for separating video data, audio data and the additional information from a channel decoded broadcast signal; a controller for receiving the additional information separated by the demultiplexer, for extracting an additional information class code from the additional information, and for generating an additional information storage control signal and an additional information display control signal when the extracted additional information class code is included in additional information class codes selected by a user; a memory responsive to the additional information storage control signal from said controller for storing the additional information in an area assigned to a type of the additional information; an additional information class display signal generator responsive to the additional information display control signal from said controller for generating image data for displaying on a screen a type of information corresponding to the extracted additional information class code; and a video signal processor for decoding the video data separated by the demultiplexer, for mixing the decoded video data and the image data generated by the additional information class display signal generator to obtain a mixed result, and for performing signal processing on the mixed result for display on a screen, wherein the image data generated by the additional information class display signal generator is icon image data representing the type of additional information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 27, 28, 29, 30)
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9. A method of processing additional information embedded in a television broadcast signal, the method comprising the steps of:
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(a) extracting an additional information class code from the embedded additional information; (b) determining whether the extracted additional information class code conforms to a condition of acquisition of the additional information; (c) generating an additional information display control signal when the extracted additional information class code conforms to the condition of acquisition of the additional information; and (d) displaying the type of the additional information on a screen in response to the additional information display control signal when it is determined that the extracted additional information class code conforms to the condition of the acquisition of the additional information set by the user, wherein the type of the additional information is displayed on the screen in the form of icon images specified for each type of additional information. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An apparatus for processing additional information embedded in a television broadcast signal, said apparatus comprising:
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a demultiplexer for receiving a broadcast signal, and for separating the additional information from at least one of video data and audio data in the broadcast signal; a controller for receiving the additional information separated by the demultiplexer, for extracting an additional information class code from the additional information, and for generating an additional information display control signal when the extracted additional information class code is included in additional information class codes selected by a user; an additional information class display signal generator responsive to the additional information display control signal from said controller for generating image data for displaying on a screen a type of information corresponding to the extracted additional information class code; and a video signal processor for processing the image data generated by the additional information class display signal generator, and to mix the image data with the video data to obtain a signal for display on a screen, wherein the image data generated by the additional information class display signal generator is icon image data presenting the type of additional information. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of processing additional information embedded in a television broadcast signal, the method comprising the steps of:
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receiving the television broadcast signal; extracting the additional information from the received television broadcast signal; generating an display image corresponding to the extracted additional information; and displaying the generated display image on the screen; wherein the generated display image is an icon image representing the extracted additional information and having type information indicating a type of the additional information.
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25. A method of processing additional information embedded in a television broadcast signal, the method comprising the steps of:
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receiving the television broadcast signal; extracting the additional information from the received television broadcast signal; extracting a class code which includes information for specifying the extracted additional information; generating a display image corresponding to the extracted additional information based on the extracted class code; displaying the generated display image on the screen. - View Dependent Claims (26)
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Specification