KR20000009548U - Audio data playback device of digital television - Google Patents

Abstract

The present invention provides a voice data reproducing apparatus of a television that can record voice data desired by a user in a memory in a television instead of an external device, and can reproduce the recorded voice data at any time as needed.

According to the present invention, when a multi-bit string obtained by multiplexing each bit string in which data such as video and audio are individually encoded is received through an antenna, the received multi-bit string is separated into individual data in a separating unit, and the separated individual data A television for decoding and outputting each decoder in a decoder, comprising: key input means for storing / reproducing only audio data desired by a user among the separate individual data, and an individual separated in the separating part according to input of a storage key of the key input means. A microcomputer that detects only audio data from the data, and transmits a control signal to reproduce audio data detected according to the input of a playback key of the key input means, and a memory for storing audio data detected by the separating unit under the control of the microcomputer. It is characterized by including.

Description

Audio data playback device of digital television

The present invention relates to an apparatus for reproducing voice data of a television, and more particularly, to store voice data desired by a user while watching a digital television in a memory of a digital television rather than an external device by simple key operation of a remote controller, and stored voice data. The present invention relates to an audio data reproducing apparatus of a digital television which can be reproduced as needed.

With the development of broadcasting, telecommunications, and electronic technology, the use of television has become widespread and common to the masses, and now television is becoming a powerful means of information transfer that replaces existing typographical and radio media. In addition, with the development of the video and film industry, various kinds of dramas and movies that were not seen in the past are produced and broadcasted through television. As the television is spread to all homes, family members can always watch.

Such television broadcasting systems can be classified into analog television broadcasting and digital television broadcasting. Currently, analog television broadcasting is mainly used, but the standardization of digital television broadcasting that can transmit a large number of programs in the same bandwidth and efficiently use a limited frequency is rapidly progressing. Most digital broadcasting systems use MPEG-2 (MPEG-2) video as a video encoding scheme, and MPEG2 system as a multiplexing scheme, and MPEG-2 audio is used as a speech encoding scheme.

On the other hand, if a user wants to record voice data (eg, a song, a performance song, etc.) while watching television, the voice data is recorded using an external device (eg, VCR, RECORDER) and stored on a tape as necessary. Audio data has been reproduced.

However, there is the following problem in the audio data reproduction apparatus of such a television.

In other words, the user cannot know when the desired voice data will be broadcast, and if the user wants to record the voice data, the blank tape should be attached to an external device every time the user watches the TV. It was very cumbersome, and the broadcast of voice data desired by the user could be terminated while preparing for recording.

Accordingly, the present invention is to solve such a problem, and the object of the present invention is to add a memory and a buffer to the digital television to store the data desired by the user in the memory of the digital television rather than an external device, the stored audio data or video This is to allow the data to be played back at any time as needed.

1 is a block diagram schematically showing a digital television according to the present invention;

2 is an exemplary view showing a remote control to which the present invention is applied;

3 is a look-up table showing a control signal generated according to a key operation set in the remote controller of FIG. 2;

4 is an exemplary view showing a mode of selecting playback of stored voice data according to the present invention.

In order to achieve the above object, a feature of the present invention is that if a multi-bit string obtained by multiplexing each bit string in which data such as video and audio are individually encoded is received through an antenna, the received multi-bit string is separated from the separation unit. A digital television which separates into separate data and decodes and outputs the separated individual data by each decoder, comprising: key input means for storing / reproducing audio data desired by a user among the separated individual data, and storing of key input means Detects and stores audio data or video data desired by the user from the individual data separated by the separating unit according to the input of a key, and sends a control signal to reproduce the stored audio data or video data according to the input of the playback key of the key input means. And the audio detected by the separation unit under the control of the microcomputer. And a memory for storing data or video data.

Preferably, the audio data reproducing apparatus of the digital television further includes a file name storing unit for storing a file name assigned to the audio data or the video data stored in the memory according to the input of the storage key of the key input means, and the reproduction key of the key input means. When is input, under the control of the microcomputer, each file name stored in the file name storage unit is displayed on the screen of the digital television.

Preferably, the microcomputer checks whether the file name of the audio data or the video data stored in the memory is input as the storage key of the key input means is turned off, and if the file name is not input within a predetermined time, the file stored in the file name storage unit. It is characterized by increasing the name sequentially.

Preferably, the file name given to the audio data or the video data stored in the memory is a combination of numeric keys among a plurality of keys of the key input means.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram schematically showing a digital television according to the present invention, FIG. 2 is an exemplary view showing a remote control to which the present invention is applied, and FIG. 3 is shown according to the key operation set in the remote controller of FIG. A lookup table showing a generated control signal is shown, and FIG. 4 is an exemplary view showing a mode of selecting reproduction of stored voice data according to the present invention.

As shown in FIG. 1, the microcomputer 10 generally controls the system, and transmits a control signal according to the input of a key provided in the key input unit 20 or the remote controller 30 separated from the television. The channel input unit 40 receives the multiple bit strings received through the antenna ANT, and the third buffer 50 transmits the multiple bit strings output from the channel input unit 40 to the separation unit 60. do. A transport stream de-multiplexer (TS DMUX, or demultiplexer) 60 reproduces a desired program according to content identification information of packet data present in a header portion of a transporter packet for the transmitted multiple bit strings. Detect packets required for The video decoder 70 decodes the video bit string detected by the separation unit 60 and outputs the decoded video bit string to the cathode ray tube 80. The audio decoder 90 decodes the audio bit string detected by the separation unit 60. After converting the analog signal from the analog converter (D / A Converter) (not shown) to the speaker 100, the text decoder 110 decodes the text bit string detected by the separation unit 60 to the cathode ray tube Output to (80). In addition, the first buffer 120 inputs the audio bit string detected by the separation unit 60 to the first memory 130 under the control of the microcomputer 10, and when the play key 30c is inputted, the first memory 120 is input. The audio bit string stored in the 130 is transmitted to the separation unit 60. The second buffer 140 inputs the audio bit string detected by the separating unit 60 to the second memory 150 under the control of the microcomputer 10, and separates the audio bit string stored in the second memory 150. Transfer to section 60. On-screen display (OSD) 160 receives the control signal of the microcomputer 60 is stored in the first memory 130 by the number of the channel selected on the screen of the cathode ray tube 80 and the user's selection It displays the selection of playback of audio data. The voice file storage unit 170 stores a file name given to voice data stored in the first memory 130.

Meanwhile, the remote controller 30 separated from the television has a storage key 30a, a playback mode key 30b, and a playback key 30c capable of storing voice data desired by a user in the first memory 130 as shown in FIG. ) Is provided.

The operation of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

When the viewer selects a channel to be watched by pressing a key provided in the key input unit 20 installed in the television or the remote controller 30 separated from the television, the selected signal is transmitted to the remote receiver 180. Input to the microcomputer 10 through the, and the OSD (On-Screen Display) unit 160 receives the control signal of the microcomputer 10 to display the number of the channel selected on the screen of the cathode ray tube 80, the video output Mark it.

At the same time, the channel input unit 40 outputs the multiple bit strings received through the antenna, and the third buffer 50 transmits the multiple bit strings output from the channel input unit 40 to the separation unit 60.

In this case, the multiple bit streams received through the antenna are individually encoded such that video, audio, and the like are kept in association with each other, and then each encoded bit stream is adapted to an application field in a multiplexer (MUX). It is transmitted by multiplexing suitable for the format of the transmission medium (storage media, network, etc.) of the bit string.

In addition, although the video bit stream, the audio bit stream and the text bit stream separated by the separation unit 60 are temporarily stored in each memory before being transmitted to the respective decoders, an audio decoder directly related to the present invention is provided. Only the second memory 150 to be stored is illustrated and described.

The separating unit 60 separates the input multiple bit strings into individual bit strings such as video and audio, and transmits them to respective decoders. The video decoder 70 decodes the video bit string received from the separation unit 60 and outputs the decoded video bit string to the cathode ray tube 80. The text decoder 110 decodes the text bit string received from the separation unit 60 to decode the cathode ray. Output to the tube (80).

The audio bit string separated by the separating unit 60 is temporarily stored in the second memory 150 through the second buffer 140, and is stored in the second memory 150 under the control of the microcomputer 60. Is transmitted to the separation unit 60 through the second buffer 140, the separation unit 60 transmits the audio bit string to the audio decoder 90, and the audio decoder 90 digitally transmits the received audio bit string. Decoded by an analog converter (not shown) and output to the speaker 100.

When the user selects the storage key 30a among a plurality of keys provided in the remote controller 30 to record the audio data output while watching the program broadcast through the above process, the microcomputer 60 controls the remote controller. As the on-signal of the storage key 30a is received from the 30, a "high" signal is transmitted to the first buffer 120, the second buffer 140, and the third buffer 50. The first buffer 120 receives the voice data detected by the separation unit 60 according to the input "high" signal and inputs it to the first memory 130. The second buffer 140 and the third buffer 50 perform the previous operation as they are regardless of the input "high" signal.

As described above, the user does not want to store the voice data anymore while separately storing the voice data desired by the user in the first memory 130. Therefore, the user selects the storage key 30a from the plurality of keys of the remote controller 30 and stores the key again. When the signal is turned off, the microcomputer 10 receives a "low" signal to the first buffer 120 as the off signal of the storage key 30a is received from the remote controller 30. The buffer 50 transmits a "high" signal. The first buffer 120 stops inputting the voice data detected by the separation unit 60 to the first memory 130 according to the input “low” signal and waits in the off state, and the second buffer 140 ) And the third buffer 50 perform the previous operation as it is regardless of whether the storage key 30a is turned on or off. Therefore, only the voice data desired by the user is stored in the first memory 130.

Here, when the off signal of the storage key 30a of the remote controller 30 that stops storing voice data in the first memory 130 is received according to a user's selection, the microcomputer 10 stores the storage key 30a. The audio data from the on time to the off time is processed in one voice file unit. Accordingly, the microcomputer 10, in conjunction with a graphic user interface, may control the OSD unit 160 to request the cathode ray tube 80 to input a file name of voice data stored in the first memory 130. . Accordingly, the user designates the desired file name using the numeric keys among the plurality of keys of the remote controller 30. When the user inputs a file name using the remote controller 30, the microcomputer 10 stores the input file name in the voice file name storage unit 170. If the user does not input a file name within a predetermined time, the microcomputer 10 detects a file name having the largest number among the file names stored in the voice file name storage unit 170 and inputs a numeric key larger than the detected file name. .

In addition, a case in which the user selects the play mode key 30b among a plurality of keys of the remote controller 30 to turn on the play mode key in order to play the voice data stored in the first memory 130 is as follows.

When the microcomputer 10 receives the ON signal of the playback mode key 30b from the remote controller 30, the microcomputer 10 transmits a “low” signal to the first buffer 120, the second buffer 140, and the third buffer 50. Done. The first buffer 120 maintains the standby state by performing the previous operation according to the input "low" signal, and the second buffer 140 is separated from the separation unit 60 according to the input "low" signal. The operation of inputting the separated audio bit string to the second memory 150 is stopped and waited in the off state, and the third buffer 50 is output from the channel input unit 40 according to the input "low" signal. The operation of transferring the heat to the separation unit 60 is stopped and waits in the off state.

Here, when the microcomputer 10 receives the on-signal of the play mode key 30b from among the plurality of keys of the remote controller 30, the user wants to reproduce the voice from among the plurality of voice data stored in the first memory unit 130. The file name stored in the voice file name storage unit 170 is displayed on the cathode ray tube 80 by controlling the OSD unit 160 to select a file name of the data. Accordingly, the user can select a predetermined file name to be played back by using the numeric keys or the channel / volume (▲, ▼ / +,-) keys among the plurality of keys of the remote controller 30 (see FIG. 4).

Subsequently, when the user selects the playback key 30c among the plurality of keys of the remote controller 30, the microcomputer 10 sends a “high” signal to the first buffer 120, and the second buffer 140 and the third buffer. The buffer 50 transmits a "low" signal. The first buffer 120 transmits the voice data stored in the first memory 130 to the separator 60 according to the input "high" signal, and the separator 60 transmits the audio bit string of the transmitted voice data. The audio decoder 90 decodes the transmitted audio bit string and outputs the decoded audio bit string to the speaker 100. In addition, the second buffer 140 and the third buffer 50 maintain the standby state according to the input "low" signal.

In addition, when the user selects the play mode key 30b again to stop the middle of the voice data being output through the speaker 100, the play mode is turned off. When the microcomputer 10 receives the off signal of the playback mode key 30b from the remote controller 30, the microcomputer 10 sends a "low" signal to the first buffer 120 and a second buffer 140 and the third buffer 50. Will transmit a "high" signal. The first buffer 120 stops the operation of transmitting the voice data stored in the first memory 130 to the separator 60 according to the input “low” signal and maintains the standby state, and inputs the “high” signal. The second buffer 140 is turned on to process the data transmitted from the channel input unit (I), and the third buffer 50 is also turned on to separate the multiple bit strings output from the channel input unit (40). To send).

Therefore, the user can store / play back desired voice data in the television without an external device by simple key operation of the remote controller.

The operation of storing / reproducing desired data in the memory of the digital television by the key operation of the remote controller can be applied to not only audio data but also video data.

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the embodiments described, but should be defined by the utility model registration claims as described below and equivalents to the utility model registration claims.

As described above, according to the data reproducing apparatus of the digital television according to the present invention, the user's desired audio data can be stored in the memory of the television by simple key operation of the remote control while watching the digital television, and the data stored in the memory. Can be easily played back at any time according to the user's needs.

Claims (4)

When a multi-bit string obtained by multiplexing each bit string in which data such as video and audio are individually encoded is received through an antenna, the received multi-bit string is separated into individual data in a separating unit, and the separated individual data is separated. In a digital television that is decoded and output by each decoder: Key input means for storing / reproducing data desired by a user among the separated individual data; A memory for storing data desired by a user from among the individual data according to an input of a storage key of the key input means; And a microcomputer for storing data desired by a user in the memory according to the input of the storage key of the key input means, and reproducing the data stored in the memory according to the input of the playback key of the key input means. Audio data reproduction apparatus of digital television. The audio data reproducing apparatus of claim 1, wherein A file name storage section for storing a file name assigned to the data stored in the memory in response to an input of a storage key of the key input means; And when the play key of the key input means is input, display each file name stored in the file name storage unit on the screen of the television under the control of the microcomputer. The method of claim 1, wherein the microcomputer When the storage key of the key input means is turned on and then turned off, it is checked whether a file name of data stored in the memory is input. If the file name is not input within a predetermined time, the file name stored in the file name storage unit is sequentially increased. An audio data reproduction apparatus for a digital television. The apparatus of claim 2, wherein the file name given to the data stored in the memory is a combination of numeric keys among a plurality of keys of the key input means.