KR100398030B1 - Apparatus and method for storing satellite broadcasting data - Google Patents

Abstract

PURPOSE: An apparatus and a method for storing satellite broadcasting data are provided to selectively remove unnecessary data from satellite broadcasting data, thereby reducing waste of recording time. CONSTITUTION: A system decoder(2) demultiplexes data of channels multiplexed through time division and output from a channel part(1), divides data of the corresponding channel into voice data and video data, and selectively decodes commercial advertisement. Data decoders(3,4) restore the compressed data output from the system decoder. A key input unit(12) generates a key signal according to a control signal generated by a user. An input selector(6) selects sound data output from the data decoders or external input source. A sound recording unit(9) records the audio signal output through the input selector. A microcomputer(5) controls reproduction of the commercial advertisement data according to the key signal of the key input unit.

Description

Satellite broadcasting data storage device and method

The present invention relates to a digital satellite broadcasting reception method, and provides a patent, a digital satellite transceiver capable of generating a commercial advertisement section detection signal, and an audio device capable of recording using the signal, thereby selectively eliminating unnecessary parts, thereby wasting recording time. The present invention relates to a satellite broadcasting data storage device and a method for reducing the number of satellite broadcasting.

In general, a digital satellite receiver includes a channel unit 1 consisting of a tuner, a QPSK demodulator, and an FEC block, and a plurality of channels output through the channel unit 1, as shown in FIG. 1 of the accompanying drawings. Demultiplexing the data multiplexed by time division, and receiving and restoring the system decoder unit 2 which separates the audio data and the image data, and the compressed image data separated by the system decoder unit 2. A video decoder unit 3, an audio decoder unit 4 for restoring compressed voice data separated from the system decoder unit 2, a key input unit 12 and a key input unit 12 input by a user. Consists of a microcomputer (5) for controlling each component in accordance with the data input from.

In addition, general recordable digital audio includes an input selector 6 for selecting a recorded input source as shown in FIG. 2 of the accompanying drawings, and an A / D converter 7 for converting an analog signal into a digital signal. And an encoder section 8 for converting the digital data into a recordable form, a recording amplifier section 9 and a recording head section 10 for recording the input signal.

When a user records a digital satellite broadcast using a satellite receiver and audio as shown in FIGS. 1 and 2, a low noise block down converter is received after receiving a signal emitted from a satellite through a parasonic antenna. It is input to the channel part 1 via ().

The channel unit 1 removes data errors and noise generated during the transmission process and inputs the corresponding data to the system decoder unit 2.

In this case, the data is multiplexed by time division, and when the system decoder 2 demultiplexes the data corresponding to one TV or a corresponding data channel, is output.

If the data output from the system decoder 2 is a TV channel, it is divided into audio data and video data again.

The audio data and the video data separated in the above process are input to the audio decoder 4 and the video decoder 3, respectively.

The video decoder 3 decompresses the input data, that is, the compressed data, converts the data into a general form of data, transfers it to an NTSC encoder, and finally outputs an NTSC signal.

In addition, the audio decoder unit 4 restores the compressed audio signal to make the analog output the final output.

When recording the audio signal output due to the operation of the satellite broadcasting receiver as described above, if the data output from the audio decoder unit 4 is input to the input selection unit (see FIG. 2), A / D The converter 7 converts the digital data.

The data output from the A / D converter 7 is reconverted into a form of recordable data by the encoder unit 8 and recorded through the recording amplifier unit 9 and the recording head unit 10.

Although the audio signal can be recorded in the data of the satellite broadcast by the operation of the satellite receiver and the audio device as described above, when receiving the data provided by the digital satellite broadcast and recording the data to the audio device, commercial advertisements are Since it takes up a considerable part, it is not possible to selectively record desired data, resulting in a waste of resources and time.

An object of the present invention for solving the above problems is to provide a digital satellite transceiver capable of generating a commercial advertisement section detection signal and an audio device capable of recording using the signal, thereby selectively eliminating unnecessary parts, thereby wasting recording time. To provide a method and apparatus for recording digital satellite broadcast to reduce the number of.

A feature of the present invention for achieving the above object is, by reconstructing the data input from the channel unit 1 consisting of a tuner, QPSK demodulator, FEC block to record a satellite broadcast receiver and audio data for outputting an image or audio signal In the satellite broadcasting recording device having an audio recorder for the above, Demultiplexing the data of several channels multiplexed by the time division output from the channel unit 1, Separates the audio data and the video data from the data of the channel, Commercial advertisement A system decoder for selectively decoding a signal, a data decoder for restoring compressed data output from the system decoder, a key input for generating a key signal according to a control signal generated by a user, and the data decoder Input selection section for selecting output sound data input source or external input source A sound recording unit for recording an audio signal output through the input selection unit and a micom unit controlling the reproduction of commercial broadcast data in the system decoder unit according to the key signal input from the key input unit; It is configured to control the commercial broadcast is not recorded when recording satellite broadcast.

Another feature of the present invention for achieving the above object is, a tuner, QPSK demodulator, a satellite broadcasting receiver for outputting the image or audio signal to restore the data input from the channel portion consisting of the FEC block and the sound for recording the sound data In the satellite broadcasting recording method having a recorder, a process of decoding a transport packet among received satellite broadcast signals, a process of searching for and decoding the presence of the ADAPTATION field when a video or audio packet is selected, and a commercial broadcast are included. Determining whether the recording is in progress, and if the recording is in progress, switching the mode to the recording standby state.

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

3 is a block diagram of a digital satellite broadcasting receiver having a function of screening broadcast signals according to the present invention, and includes a channel unit 1 consisting of a QPSK demodulator and an FEC block and various outputs through the channel unit 1. The system decoder unit 2 demultiplexes the transport packet data in which the channel data is multiplexed by time division, and separates the audio data and the video data, and is separately output from the system decoder unit 2. A video decode unit 3 for restoring compressed video data, an audio decode unit 4 for restoring compressed audio data separately output from the system decoder unit 2, and a control signal generated by a user. A key input unit 12 for generating a key signal according to the present invention, an input selector 6 for selecting an input source to be recorded or an external input source output from the audio decode unit 4, The recording amplifier unit 9 for recording the audio signal output through the input selector 6, and the system decoder unit 2 according to the key signal input from the recording head unit 10 and the key input unit 12. ) Is composed of a microcomputer 5 for controlling the reproduction of the commercial commercial data and to control each of the above-described configuration.

The microcomputer 5, the system decoder 2 and the data decoders 3 and 4 interact with each other to confirm whether any packet is selected in the video or audio packet decoded by the system decoder 2, If it is selected, it is checked whether the ADATATION field exists as shown in FIG. 5. If present, the corresponding ADATATION field is decoded and the high or low level state of the CM flag is checked to control the data storage to be stopped if the high level is high. Here, decoding is performed by the decoders 2, 3, and 4, and data control operations such as checking, determining, and storing data are performed by the microcomputer 5.

Referring to Figures 4 to 6 attached to the preferred operation of the satellite broadcasting data storage device according to the present invention configured as described above are as follows.

4 is a flowchart illustrating the operation of the recording apparatus according to the present invention.

In step S101 and step S102, each data or operation mode of the system is initialized.

That is, the system code part 2 is initialized in step S101, and the video code part 3 and the audio code part 4 are initialized in step S102.

Thereafter, in step S103, the transport packet as shown in FIG. 5 is decoded and the flow proceeds to step S104.

In step S104, it is determined whether any of the video or audio packets is selected or another packet is selected.

If it is determined in step S104 that another random packet has been selected, the flow advances to step S105, accesses data according to the packet from the FIFO memory, and then proceeds back to step S103.

If any of the video or audio packets is selected in step S104, the flow advances to step S106.

In step S106, it is determined whether the ADATATION field exists, and if it is determined, the flow advances to the next step S107.

In step S107, the ADAPTATION field determined to exist in step S106 is decoded.

Thereafter, in step S108, it is determined whether the CM flag indicating commercial broadcasting is high level, and if it is high level, the flow advances to step S109 to determine whether the user is currently recording satellite broadcasting.

If it is determined in step S109 that the user is recording, the flow advances to step S110 to control the recording amplifier unit 9, the recording head unit 10 and the like to switch the mode to the recording standby state.

If it is determined in step S108 that the CM flag is at low level, or if it is determined in step S109 that it is not recording, or if the operation of step S110 is completed, the process proceeds to step S111.

In step S111, it is determined whether the PES flag is present in the Packetized Elementary Stream (PES) packet structure as shown in FIG.

If it is determined in step S111 that the PES flag is present, the process proceeds to step S112, after decoding the PES packet, the process proceeds to step S113.

If it is determined in step S106 that the ADAPTATION field does not exist, the flow proceeds to step S113 as well.

In step S113, the corresponding data is accessed from the FIFO memory, the data is transferred to the decoding units 3 and 4, and the process proceeds to step S103 again.

By providing a digital satellite broadcast recording method and apparatus according to the present invention operating as described above, the audio signal of the satellite broadcast data can be recorded by the conventional operation of the satellite receiver and the audio device, but the data provided by the digital satellite broadcast In the case of receiving and recording on an audio device, since commercial advertisements occupy a considerable part due to the characteristics of satellite broadcasting, there is an effect of eliminating the problem of wasting resources and time because it cannot selectively record desired data. .

1 is a block diagram of a general digital satellite broadcast receiver.

2 is a block diagram of a general recording audio device.

3 is a block diagram of a digital satellite broadcasting receiver having a broadcasting signal sorting function according to the present invention.

4 is a flowchart illustrating the operation of the recording apparatus according to the present invention.

5 is a view of a transport packet stream format in the present invention.

6 is a structural diagram of a PES packet in the present invention.

*** Explanation of symbols for main parts of drawing ***

1: Channel part 2: System decoder part

3: video decode section 4: audio decode section

5: Micom part 6: Input selector

9: recording amplifier section 10: recording head section

12: key input unit

Claims (5)

A system decoder to decode a transport packet format included in a received broadcast signal; A data decoder for restoring the compressed data output from the system decoder; A detector detecting a region displaying commercial broadcast data in the restored data; And And a control unit for suspending the data storage if it is determined that the detection unit is a commercial broadcasting area. A first step of decoding a transport packet format included in a received broadcast signal; Restoring the compressed data output after the decoding; Detecting a region displaying commercial broadcasting data from the restored data; And And a fourth step of placing importance on storing the data temporarily when the detection unit determines that the commercial broadcasting area is determined. The method of claim 1, And the commercial advertisement broadcasting area is included in an ADAPTATION field of the transport packet. The method of claim 1, And the area displaying the commercial advertising data is a CM flag. The method of claim 2, And the commercial advertisement broadcasting area is included in an ADAPTATION field of the transport packet.