KR20000020077A - Digital satellite receiver having recording reservation function and recording reservation method thereof - Google Patents

Abstract

PURPOSE: A digital satellite receiver having a recording reservation function which selects a recording reservation on a program guide screen to record a selected program by controlling a VCR by means of a receiver itself and a recording reservation method thereof are provided. CONSTITUTION: In a digital satellite receiver, a tuner(310) selectively receives and frequency -downs a high frequency band of a transponder including data of a channel selected by a user. A QPSK demodulator(320) QPSK-modulates and digital-converts an output of the tuner(310) and outputs a transponder stream. An MPEG2 demultiplexor(330) demultiplexes the transponder stream from QPSK demodulator(320) and selectively outputs an event information table data including a data service stream, a subscriber selection channel data, or a program guide information. An MPEG2 decoder(340) decodes an audio/video data of a selected channel and the event information table data from MPEG2 demultiplexor(330). An audio digital analog converter(350) converts the audio data from MPEG2 decoder(340) into an analog signal. A video encoder(360) converts the video data from MPEG2 decoder(340) into analog data. A VCR remote controller(380) generates a signal identical with a recording command signal of a VCR. A controller(370) converts a channel data of a reserved program into a video/audio signal.

Description

Digital satellite broadcasting receiver with recording reservation function and recording reservation method

The present invention relates to a digital satellite broadcasting receiver, and more particularly, to record a VSI in the receiver itself when a program is scheduled for recording by a subscriber using program guide information provided as service information by a digital broadcasting satellite (DBS). A digital satellite broadcast receiver having a recording reservation function for controlling and a recording reservation method thereof.

In general, a digital satellite broadcasting receiver is a device for processing and converting a signal transmitted from a broadcast satellite and outputting the signal to a TV, a VCR, or a data terminal. An apparatus for processing a received signal is an antenna (not shown) as shown in FIG. Tuner 110 to receive and tune down a high frequency signal (RFin) of a desired channel through Q) and QPSK demodulate the signal output from the tuner 110, and then digitally convert and transport the transport stream (TS). Demultiplexing the QPSK demodulator 120 and the transport stream output from the QPSK demodulator 130 to output the data service stream to an external data terminal and the program data of the channel selected by the subscriber to the MPEG2 decoder 140 MPEG-2 demultiplexer 130 to output and MPEG-2 compressed program data outputted from the MPEG2 demultiplexer 130 to the original video / audio MPEG2 decoder 140 decoding audio data, audio DAC 150 converting audio data output from the MPEG2 decoder 140 into an analog audio signal, and outputting the video data output from the MPEG2 decoder 140. Demultiplexing operation of the MPEG2 demultiplexer 130 and the MPEG2 decoder 140 according to the video encoder 160 and the remote control (RCU) signal to restore the analog video signal according to the corresponding broadcasting method (NTSC or PAL method). The CPU 170 is configured to control the decoding operation.

In addition, the transport stream includes service information (SI), that is, a message related to management messages of the receiving system and subscriber service registration, and among them, an event information table (EIT) which can guide the program to be broadcasted in the future. EVENT INFORMATION TABLE), and thus, the digital satellite broadcasting receiver can provide a program guide screen to the subscriber by using the EIT.

However, if a digital satellite broadcasting receiver is to be used to record a satellite broadcasting program, VSI and the television and the digital satellite broadcasting receiver are connected to each other, and the subscriber operates the digital satellite broadcasting receiver. After confirming the channel and the broadcast time of the program to be recorded with the guidance, there was an inconvenience in that the operation for re-recording recording in VSI was required.

The present invention has been invented in view of the above-mentioned conventional problems, and its object is to control VSI in the receiver itself to record the selected program by selecting only the reserved recording on the program guide screen provided by the digital satellite broadcasting receiver. The present invention provides a digital satellite broadcast receiver having a recording reservation function that can provide more convenience to a subscriber, and a recording reservation method thereof.

1 is a block diagram showing a general configuration of a digital satellite broadcasting receiver.

2 is a block diagram showing a connection configuration between a digital satellite broadcast receiver and a VTR according to the present invention.

3 is a block diagram schematically showing the configuration of a digital satellite broadcast receiver according to the present invention.

4 is an exemplary view showing an example of an OSD menu for selecting recording reservation by the digital satellite broadcasting receiver of the present invention.

* Description of the symbols for the main parts of the drawings *

310 tuner 320 QPSK demodulator

330: MEPG2 Demultiplexer 340: MEPG2 Decoder

350: Audio DAC (Digital Analog Converter)

360: video encoder 370: CPU

380: VCR remote controller (VCR RCU)

As a constitutional means for achieving the above object of the present invention, a digital satellite broadcast receiver having a recording reservation function according to the present invention

A tuner which tunes to a high frequency band of a transponder carrying data of a channel selected by the subscriber and down-frequencyes;

A QPSK demodulator for outputting the output signal of the tuner to the transponder stream by QPSK demodulation and digital conversion;

An MPEG2 demultiplexer for demultiplexing the transponder stream output from the QPSK demodulator under the control of a control unit and selectively outputting an event information table (EIT) data containing data or program guide information of a data service stream or a subscriber selection channel;

Under the control of the control unit, the audio / video data of the selected channel input from the MPEG2 demultiplexer is decoded and restored to the original video data, and the EIT data is decoded to determine the information of the program transmitted from the satellite and whether to reserve the recording of the program. MPEG2 decoder which reconstructs video data of OSD screen to display,

An audio digital analog converter for converting and outputting audio data output from the MPEG2 decoder into an analog audio signal;

A video encoder for converting and outputting video data output from the MPEG2 decoder into an analog video signal;

A VSI remote control unit for generating the same signal as the recording command of VSI connected to the digital satellite broadcasting receiver;

When the subscriber requests the program guide screen output, the EIT data is reconfigured into the OSD screen that shows the program information and recording reservation.The program information of the program selected by the subscriber for recording reservation is memorized. And a control unit for converting and outputting data into a video / audio signal and operating a VSI remote control unit.

In addition, the recording reservation method in the digital satellite broadcast receiver includes a digital satellite broadcast receiver including a VSI remote control unit for transmitting a remote control signal of VSI,

If there is a request to output the program guide screen, the program guide screen further includes a recording reservation display unit for indicating whether or not to record recording of each program in addition to the program information included in the event information table (EIT).

The channel name, start time, and broadcast time of the program scheduled to be recorded by the subscriber are memorized, and the current time is checked to output the video / audio signal of the reserved recorded channel when the start time of the scheduled recording program is reached. It is characterized in that the broadcast receiver transmits a remote control signal indicating the recording start of the VSI to the VSI.

Hereinafter, with reference to the accompanying drawings will be described.

FIG. 2 is a block diagram schematically illustrating a connection relationship between a digital satellite broadcast receiver and a VCR according to the present invention. 21 is an RCU unit 211 for transmitting a remote control signal for instructing recording start to a VSI 22. FIG. A recording-reservable digital satellite broadcast receiver (DSVR), 22 receives a video / audio signal of a subscriber selected channel output from the digital satellite broadcast receiver 21 and transmits it to the television 23 or the digital satellite broadcast receiver ( Is a VSI (VCR) for recording by the recording instruction signal sent from the RCU unit 211 of the DSVR, and 23 is a video / audio signal output from the digital satellite broadcast receiver 21 or VSI 22. And TV to reproduce by voice.

FIG. 3 is a block diagram illustrating a digital satellite broadcast receiver according to the present invention. A tuner tunes a radio frequency signal (RFin) of a transponder band including a channel selected by a subscriber through an antenna (not shown). 310 and QPSK demodulator 320 for performing QPSK demodulation on the signal output from the tuner 310 and digitally converting the signal output from the tuner 310, and demultiplexing the transport stream output from the QPSK demodulator 330. The data service stream is output to an external data terminal or the MPEG2 demultiplexer 330 for outputting program or EIT data of a channel selected by the subscriber to the MPEG2 decoder 340, and the MPEG2 demultiplexer 330 under the control of the controller 370. Compressed video / audio data or EIT data outputted from the MPEG-2 decoder 340 for decoding the video data of the program guide screen, audio DAC 350 for converting the audio data output from the MPEG2 decoder 340 into an analog audio signal, and the MPEG2 decoder 340. A video encoder 360 for restoring the output video data to an analog video signal in accordance with the broadcasting method (NTSC or PAL method), and a remote to output the program guide screen from the RCU (not shown) of the DSVR operated by the subscriber. When a control signal is applied, the MPEG2 demultiplexer 330 selects and outputs the EIT data to the MPEG2 decoder 340, and the MPEG2 decoder 340 decodes the input EIT data into video data of a program guide screen displaying recording reservation availability. After that, if the recording reservation setting signal for a certain program is applied by the subscriber, information about the program (channel, start time, room) And a CPU 370 for outputting an operation signal to the VCR RCU 380 while controlling the digital satellite broadcasting receiver to output a video / audio signal of the program when the broadcast time of the program is reached. And a VSI RCU 380 for transmitting a remote control signal, which means the set start of recording, to VSI (22 in FIG. 3) when the operation signal is applied from the reference signal 370.

The remote control signal transmitted from the VRC RCU 380 is the same as the recording start signal transmitted from the remote control of the VRS 22 having the remote control function.

Now, the operation of the digital satellite broadcast receiver having the above-described configuration is omitted since the digital satellite broadcast reception operation is the same as the conventional one, and the description will be given focusing on the recording reservation and the recording control operation by this reservation.

The subscriber may request the output of the program guide screen when he / she wants to know which program is being broadcast on which channel, or which program is being broadcast on another channel.

In this way, if the output of the program guide screen is required (this is achieved by manipulating the corresponding keys of the remote control (DSVR RCU) of the digital satellite broadcasting receiver or the operation panel provided in the digital satellite broadcasting receiver), the CPU which has accepted the request Under the control of the controller 370, the MPEG2 demultiplexer 330 selects EIT data from the transport stream output from the QPSK demodulator 320 and outputs the EIT data to the MPEG2 decoder 340, and the MPEG2 decoder 340 outputs the MPEG2 demultiplexer (340). The EIT data input from 330 is decoded and reconstructed into an OSD screen guiding a program. At this time, a program guide screen reconstructed by the MPEG2 decoder 340 is added to indicate whether or not to reserve a recording program in addition to the program guide information contained in the EIT data.

The data of the program guide screen output from the MPEG2 decoder 340 is converted into a video signal suitable for TV broadcasting by the video encoder 360 and then output. The video signal of the program guide screen output as described above is input to the television 23 via VSI 22 of FIG. 2 and appears as an OSD screen on the TV receiver.

4 shows an embodiment of the program guide screen shown in the TV receiver. As shown in FIG. 4, the program guide screen provided by the digital satellite broadcasting receiver according to the present invention displays program information provided by the EIT, that is, a program name, a program start time, a program broadcast time, and recording reservation availability.

In this case, it is assumed that recording reservation is basically set to not recording reservation, and only the program selected by the subscriber and set as recording reservation is changed and displayed as recording reservation.

The recording reservation setting of the program is performed by the subscriber viewing the program guide screen and selecting the recording reservation availability display unit of the program to be recorded and changing the selection unit to Yes.

4, it can be seen that the program guide screen is formed in a table form, and a 'star track' is set among the various programs.

As described above, the airing channel, start time, and airing time of the reserved recording program are stored in the CPU 370. From then on, the CPU 370 checks the current time to determine whether the reserved recording program is a start time. When the start time of the reserved recording program is reached, the MPEG2 demultiplexer 330 controls to output the channel data of the reserved recording program in the transport stream output from the QPSK demodulator 320.

Therefore, the digital satellite broadcasting receiver according to the present invention decodes channel data for broadcasting the program at the start time of the reserved recording program, converts the analog data into an analog audio / video signal, and outputs it to VSI of FIG.

At the same time, the CPU 370 outputs an operation signal to the VCR RCU 380. The VCR RCU 380 is configured to simply generate and output the same signal (IR command) as the remote control signal for instructing the recording of the VSI 22 connected to the digital satellite broadcast receiver 21, and the CPU 370. The remote control signal set to record is transmitted to the remote control signal receiving unit 221 of the VRS22 according to the operation command of the control unit 22).

In response to the remote control signal, V22 operates in the recording mode to record the video / audio signal input from the digital satellite broadcast receiver 21 on a tape.

As described above, according to the present invention, the digital satellite broadcast receiver is equipped with a remote control function of VSI, so that the recording can be scheduled by a single operation in the digital satellite broadcast receiver, so that the subscriber records any program of the digital satellite broadcast. When you want to operate the digital satellite broadcasting receiver, check the program guide screen, memorize the airing time and channel of the desired program, and then set the reservation to record at the time by operating the VSI connected to the digital satellite broadcasting receiver again. Discomfort to be eliminated has an excellent effect that can provide more convenience to the subscriber.

Claims (3)

For digital satellite broadcast receivers, A tuner which tunes to a high frequency band of a transponder carrying data of a channel selected by the subscriber and down-frequencyes; A QPSK demodulator for outputting the output signal of the tuner to the transponder stream by QPSK demodulation and digital conversion; An MPEG2 demultiplexer for demultiplexing the transponder stream output from the QPSK demodulator under the control of a control unit and selectively outputting an event information table (EIT) data containing data or program guide information of a data service stream or a subscriber selection channel; Under the control of the control unit, the audio / video data of the selected channel input from the MPEG2 demultiplexer is decoded and restored to the original video data, and the EIT data is decoded to determine the information of the program transmitted from the satellite and whether to reserve the recording of the program. MPEG2 decoder which reconstructs video data of OSD screen to display, An audio digital analog converter for converting and outputting audio data output from the MPEG2 decoder into an analog audio signal; A video encoder for converting and outputting video data output from the MPEG2 decoder into an analog video signal; A VSI remote control unit for generating the same signal as the recording command of VSI connected to the digital satellite broadcasting receiver; When the subscriber requests the program guide screen output, the EIT data is reconfigured into the OSD screen that shows the program information and recording reservation.The program information of the program selected by the subscriber for recording reservation is memorized. And a control unit for converting and outputting data into a video / audio signal and operating a VSI remote control unit. In a digital satellite broadcast receiver including a VSI remote control unit for transmitting a VSI remote control signal, If there is a request to output the program guide screen, the program guide screen further includes a recording reservation display unit for indicating whether or not to record recording of each program in addition to the program information included in the event information table (EIT). The channel name, start time, and broadcast time of the program scheduled to be recorded by the subscriber are memorized, and the current time is checked to output the video / audio signal of the reserved recorded channel when the start time of the scheduled recording program is reached. A broadcast reservation method of a digital satellite broadcasting receiver, characterized in that the broadcast receiver transmits a remote control signal indicating the start of recording of the Bsial to the Bsial. The method of claim 2, The recording reservation display part of the program guide screen basically indicates that the recording reservation is not set, and when the recording reservation is selected by the subscriber, the recording reservation method of the digital satellite broadcasting receiver, wherein the corresponding program is changed to the recording reservation indication. .