KR20060098660A - Wireless television receiver and method for reservation recording thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless television receiver and a reserved recording method, comprising: a personal video recorder (PVR) for storing a video / audio stream in a transport stream transmitted from a transmitter of the wireless television receiver in a receiving apparatus of the wireless television receiver. This allows the wireless television receiver to implement recording, reservation recording, and time shift functions.

According to the present invention, after the reservation recording of a program selected by a user using an EPG (Electronic Program Guide), and when the scheduled recording time comes, it is possible to perform a reservation recording function by recording the program to the PVR, the PVR You can save the currently broadcast program in real time and perform a time shift function such as pausing and replaying the live broadcast.

PVR, MPEG, Wireless LAN, Wireless Television Receiver, EPG

Description

Wireless television receiver and reservation recording method thereof

1 is a block diagram showing a configuration of a general wireless television receiver.

Fig. 2 is a block diagram showing the construction of an embodiment of a wireless television receiver according to the present invention.

3 is a flowchart showing an embodiment of a reservation recording method of a wireless television receiver according to the present invention;

* Explanation of symbols on main parts of drawings *

310: second wireless interface means 320: demultiplexer

330: memory 340: second control unit

350: PVR 360: video / audio processing unit

370: graphics unit 380: video / audio output unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless television receiver and a reservation recording method thereof, comprising a personal video recorder (PVR) for storing a video / audio stream in a transport stream transmitted by a transmitter of a wireless television receiver. A wireless television receiver capable of realizing a function and the like and a reservation recording method thereof.

With the development of communication technology, many wireless interface means have been developed to perform communication at short distances, including Bluetooth, wireless local area network, ultra wide band, and home RF.

In addition, as the transmission speed of the air interface means becomes very high, a wireless television receiver has been developed that enables a user to watch a predetermined broadcast signal while moving the user by simply applying the air interface means to a television receiver.

1 is a block diagram showing the configuration of a general wireless television receiver. As shown in the drawing, the wireless television receiver receives and decodes and transmits a broadcast signal received through a cable, an antenna, and the like, and wirelessly transmits the transmission stream transmitted by the transmitter. It is divided into the receiving device 20.

In the transmitting apparatus 10, the tuner unit 11 tunes a broadcast signal input through an antenna or a cable, tunes to a specific frequency under the control of the first controller 15, and then converts the A / D converter 12 into a specific frequency. To send.

The A / D converter 12 converts an analog signal into a digital signal, and the broadcast signal converted into a digital signal is encoded by the encoder 13. In this case, the encoding of the broadcast signal may be made of a Moving Picture Experts Group (MPEG) -Transport Stream Packet (TS), which is easy to transmit to a network.

The encoded transport stream is transmitted to the first wireless interface means 14 by the control of the first control unit 15, and is transmitted to the receiving device 20 through the first wireless interface means 14.

The second wireless interface means 21 of the receiving device 20 receives the transport stream transmitted by the first wireless interface means 14 of the transmitting device 10.

The transport stream received by the second wireless interface means 21 is transmitted to the video / audio processor 22 under the control of the second controller 24, and the video / audio processor 22 is the encoder 13. Decodes the encoded stream into a video / audio signal, and the decoded video / audio signal is transmitted to the video / audio output unit 23 so that the video signal is output on the screen and the audio signal is output from the speaker so that the user can view it. do.

The wireless television receiver has a transmission device that is difficult to move because a cable or an antenna is connected, and the transmission device is fixedly installed in a specific position. There is an advantage that can watch the desired broadcast signal.

However, the conventional wireless television receiver has a problem in that video and audio signals transmitted from a transmission apparatus can only be viewed and stored, and thus recording and reproduction cannot be performed.

That is, a user may not want to watch a predetermined program currently broadcasted but wants to watch it later. In this case, the currently broadcast program should be stored in a predetermined storage means, but a conventional wireless television receiver stores a broadcast program. Since there is no storage means for storing the currently broadcast program could not be viewed later.

SUMMARY OF THE INVENTION An object of the present invention is to provide a wireless television receiver having a time shift function and a reserved recording function by providing a personal video recorder (PVR) for storing a video / audio stream among transport streams transmitted from a transmission apparatus of a wireless television receiver and a reservation recording method thereof. To provide.

An embodiment of the wireless television receiver of the present invention includes a transmitter for receiving a broadcast signal and encoding and transmitting the received broadcast signal into a transport stream, and a receiver for receiving, decoding and displaying a transport stream transmitted by the transmitter. And a PVR (Personal Video Recorder) for storing a video / audio stream among transport streams received by the receiver, wherein the PVR stores the video / audio stream at a user's recording command. The video / audio stream may be stored when the reservation time is reached during the reservation recording command of the user.

The receiving device includes a second wireless interface means for receiving a transport stream transmitted by the first wireless interface means of the transmitting device, and a transport stream received by the second wireless interface means for video / audio streams and an EPG (Electronic Program). Guide), a memory for storing the EPG separated by the demultiplexer, a graphic unit for displaying program information on the screen using the EPG stored in the memory, and a program using the EPG stored in the memory. In the control unit to display the information on the screen, and to store the program in the PVR according to the user's recording and scheduled recording command, the video / audio stream and the demultiplexer output from the PVR under the control of the controller Video / audio outputting separated video / audio stream as video / audio signal It is characterized by consisting of a sex processing unit.

The first and second wireless interface means, characterized in that any one of a WLAN (WLAN), Bluetooth (Blue Tooth), UWB (Ultra Wide Band), Home RF.

An embodiment of a recording method of a wireless television receiver according to the present invention includes the steps of: separating an EPG from a transport stream transmitted by a transmitter of a wireless television receiver and storing the EPG in a memory; Extracting the EPG and displaying the program information on the screen by using the extracted EPG, setting a scheduled recording for a program selected by the user among the programs displayed on the screen, and setting the scheduled recording. It characterized in that the step consisting of recording on the PVR.

The recording of the PVR may include: transmitting a reserved recording control signal to the transmitting device when a scheduled recording start time of the program for which the reserved recording is set is reached, and setting the reserved recording according to the reserved recording control signal. Tuning a channel on which a program is broadcast, transmitting a transport stream, receiving a transport stream transmitted by the transmitter, generating a file name of a video / audio stream from the received transport stream, and receiving the received video And storing the voice stream in the PVR under the generated file name.

The file name may be generated by a channel, a broadcast date and a broadcast time, and a program genre in which the reserved recording program is broadcast.

Hereinafter, a wireless television receiver of the present invention and a reservation recording method thereof will be described in detail with reference to the accompanying drawings of FIGS. 2 and 3.

2 is a block diagram showing the configuration of an embodiment of a wireless television receiver according to the present invention. As shown therein, a transmitter 200 for receiving a broadcast signal and encoding and transmitting the received broadcast signal into a transport stream, and a receiver 300 for receiving, storing and displaying a transport stream transmitted by the transmitter. ).

The transmitter 200 includes a tuner unit 210 for tuning a broadcast signal input through an antenna or a cable, and an A / D converter 220 for converting an analog signal of the tuner unit 210 into a digital signal. ), An encoder 230 for encoding the converted digital signal into a transport stream, first wireless interface means 240 for transmitting the transport stream to the receiver 300, and operations of the components. The first control unit 250 to control the configuration.

The receiving device 300 includes second wireless interface means 310 for receiving a transport stream transmitted by the first wireless interface means 240 of the transmitting device 200, and the second wireless interface means 310. Memory 330 for storing the demultiplexer 320 for separating the transport stream received by the) into a video / audio stream and an EPG (Electronic Program Guide), and the EPG separated by the demultiplexer 320, and the memory 330 A second controller 340 for controlling the program information to be displayed on the screen by using the EPG stored in the controller, and controlling the program to be stored in the PVR 350 according to a user's recording and scheduled recording command; PVR 350 storing the video / audio stream separated by the demultiplexer 320 under the control of 340, and video / audio stream output from the PVR 350 under the control of the second controller 340. And the demultiplexer 320 Displaying program information on the screen using the video / audio processor 360 for outputting the video / audio stream as a video / audio signal and the EPG stored in the memory under the control of the second controller 340. The graphic unit 370, the video / audio signal output from the video / audio processor 360, the video / audio output unit 380 for outputting the screen and the speaker, and a corresponding signal by a user's operation. A user interface unit 390 generated by the second control unit 340 is configured.

In the wireless television receiver of the present invention configured as described above, the tuner unit 210 tunes a broadcast signal input through an antenna or a cable and transmits it to the A / D converter 220 under the control of the first controller 250. do.

The A / D converter 220 converts an analog signal into a digital signal, and the broadcast signal converted into a digital signal is encoded by the encoder 230 into a transport stream.

The encoded transport stream is transmitted to the first wireless interface means 240 under the control of the first controller 250, and is transmitted to the receiving device 300 through the first wireless interface means 240.

The second wireless interface means 310 of the receiver 300 receives a transport stream transmitted by the first wireless interface means 240 of the transmitter 200.

The first and second wireless interface means 240 and 310 may include, for example, Bluetooth, a wireless local area network (UWB), an ultra wide band (UWB), a home RF, and the like.

The transport stream received by the second wireless interface means 310 is separated into a video / audio stream and an EPG by the demultiplexer 320.

Here, the EPG (Electronic Program Guide) refers to a kind of broadcast program schedule transmitted through data broadcasting using an empty frequency band or a spare channel. The EPG includes a program channel, a transponder number, a broadcast time, a title, and a category. And the like, and the user can display the EPG on the screen by using the user interface 390 so as to determine which broadcasting program is broadcasted by which broadcasting station as well as about one week later.

The EPG separated from the demultiplexer 320 is stored in the memory 330, and the video / audio stream separated from the demultiplexer 320 is controlled by the PVR 350 and the video / audio under the control of the second controller 340. The voice is transmitted to the processor 360.

In this case, when the video / audio stream separated by the demultiplexer 320 is delivered to the video / audio processor 360, the playback is performed immediately. The video / audio processor 360 is a transmitter of a wireless television receiver. The video stream is decoded into a video signal and the audio stream is decoded into a voice signal according to the encoding scheme 200.

The video / audio signal decoded by the video / audio processor 360 is output by the video / audio output unit 380 on the screen and the audio signal is output from the speaker so that the user can view it.

When the video / audio stream separated from the demultiplexer 320 is delivered to the PVR 350, the path for recording and scheduled recording is a path for recording and scheduled recording. When input to the controller 340, the second controller 340 extracts the EPG information stored in the memory 330 and transmits the EPG information to the graphic unit 370 to display the program information on the screen.

When the user selects a program to reserve recording and inputs a reservation recording command, the second controller 340 detects information on the corresponding program in the EPG stored in the memory 330 and registers the reservation recording. do.

When the broadcast start time of the reserved recording program is reached, the second controller 340 transmits the reserved recording control signal to the transmitter 200 through the second wireless interface unit 310.

When the reserved recording control signal is transmitted, the tuner unit 210 tunes a channel on which the reserved recording program is broadcast under the control of the first controller 250 to convert the broadcast signal into an A / D converter 220. To pass).

The A / D converter 220 converts an analog signal into a digital signal, and the broadcast signal converted into a digital signal is encoded by the encoder 230 into a transport stream.

The encoded transport stream is transmitted to the first wireless interface means 240 under the control of the first controller 250, and is transmitted to the receiving device 300 through the first wireless interface means 240.

The second wireless interface means 310 of the receiver 300 receives a transport stream transmitted by the first wireless interface means 240 of the transmitter 200.

The transport stream received by the second wireless interface means 310 is separated into a video / audio stream and an EPG in the demultiplexer 320, and the second controller 340 is a video / audio stream separated from the demultiplexer 320. After the file name is generated, reservation recording is performed by storing the video / audio stream in the PVR 350 using the generated file name.

When a recording command is input through the user interface 390, the second controller 340 generates a file name of the video / audio stream separated by the demultiplexer 320, and then uses the generated file name as the file name. Recording is performed by storing the video / audio stream separated by the demultiplexer 320 in the PVR 350.

The file name may be generated by a channel on which a program is broadcast, a broadcast date and broadcast time, and a program genre.

In this way, after the program is recorded and scheduled recording and stored in the PVR 350, when the user inputs a file name display command through the user interface 390, the second controller 340 is the PVR (350) Extract the file name of the program stored in the file and display it on the screen.

When a user selects a file name of a program to be played and inputs a playback command through the user interface 390, the second controller 340 may display an image / file having a file name selected by the user in the PVR 350. The audio stream is extracted and output to the video / audio processor 360.

The video / audio processor 360 according to the method of encoding the video / audio stream output from the PVR 350 by the transmitter 200 according to the second controller 340 is a video signal, The voice stream decodes into a voice signal.

The video / audio signal decoded by the video / audio processor 360 is output by the video / audio output unit 380 on the screen and the audio signal is output from the speaker so that the user can view it.

3 is a flowchart showing an embodiment of a reservation recording method of a wireless television receiver according to the present invention. As shown therein, first, the demultiplexer 320 separates the EPG from the transport stream received through the air interface means 310 (S 10).

Thereafter, the memory 330 stores the EPG separated from the demultiplexer 320 (S 11). Next, the user interface unit 390 checks whether an input of the EPG display command is input (S 12).

When the EPG display command is not input as a result of the checking in step S 12, the steps S 10 and S 11 are repeated to update the EPG information stored in the memory 330.

When the EPG display command is input as a result of checking in step S 12, the second controller 340 extracts the EPG stored in the memory 330 and transfers the EPG to the graphic unit 370 to display the program information on the screen. (S 13).

If the program information is displayed on the screen, the user selects a program to be scheduled recording among the broadcast programs displayed on the screen, and then inputs a reservation recording command through the user interface 390 (S 14).

When a reserved recording command is input through the user interface 390, the second controller 340 extracts EPG information about a program that the user intends to reserve recording from the memory 330 (S 15).

Thereafter, the reserved recording is registered for the program to be scheduled recorded (S16). When reservation recording is registered in this manner, this information is stored in a nonvolatile memory (not shown), for example, EEPROM in order of reservation recording time.

Next, the second controller 340 checks whether the scheduled recording start time for the broadcast program that the user wants to record has reached (S17).

As a result of the checking in step S 17, when the scheduled recording start time comes, the second controller 340 sends the second wireless interface means 310 to the reserved recording control signal by using the information stored in the nonvolatile memory. The transmission is transmitted to the transmitter 200 of the wireless television receiver (S18).

When the reserved recording control signal is transmitted, the tuner unit 210 of the transmitter 200 receives a broadcast signal by selecting a channel on which a program to be reserved by the user is broadcasted under the control of the first controller 250. (S 19).

When the transmitter 200 encodes the broadcast signal received and transmits the transport stream, the receiver 300 of the wireless television receiver receives the transport stream through the second wireless interface means 310 (S20). ).

Thereafter, the second controller 340 generates a file name of the video / audio stream from the transport stream received through the second wireless interface means 310 (S 21). In this case, the file name is generated using information on a channel on which the program is broadcast, a broadcast date, a broadcast time, and a program genre.

For example, it can be generated by combining in the same manner as "broadcast channel + broadcast date + broadcast time + genre code". At this time, the generation of the file name may be generated in various ways in addition to being able to distinguish each program to be reserved and recorded.

Subsequently, the second controller 340 stores and records the video / audio stream received through the second wireless interface means 310 in the PVR 350 under the generated file name (S 22). Next, after checking whether the recording time is over, if the recording time is over, the recording ends (S 23).

As such, the wireless television receiver of the present invention may perform the reservation recording function and the time shift function by providing the PVR 350 in the receiver 300.

For example, if a call is received while the user is watching a broadcast program, the PVR pauses the broadcast program through the user interface 390 and then outputs the video / audio stream from the transport stream received thereafter. If it is stored in the 350, when the broadcast program is played through the user interface 390 after the telephone call is over, the user can watch from the scene after the screen stored in the PVR 350.

On the other hand, while the present invention has been shown and described with respect to specific preferred embodiments, various modifications and changes of the present invention without departing from the spirit or field of the invention provided by the claims below It can be easily understood by those skilled in the art.

According to the present invention, a reception video recording apparatus (PVR) is provided in a receiving apparatus of a wireless television receiver to store a video / audio stream among transport streams transmitted from a transmitting apparatus of a wireless television receiver, thereby making reservation recording by selecting a desired broadcast program. The PVR (Personal Video Recorder) function can be realized in a wireless television receiver.

Claims (6)

A transmitter for receiving a broadcast signal and encoding and transmitting the received broadcast signal into a transport stream; A receiver for receiving, decoding and displaying a transport stream transmitted by the transmitter; And A PVR (Personal Video Recorder) which is embedded in the receiver and stores a video / audio stream among transport streams received by the receiver, And the PVR stores the video / audio stream at the time of the user's recording command and stores the video / audio stream when the reservation time is reached during the user's reserved recording command. The apparatus of claim 1, wherein the receiving device comprises: Second radio interface means for receiving a transport stream transmitted by the first radio interface means of the transmitting apparatus; A demultiplexer for separating the transport stream received by the second radio interface means into a video / audio stream and an electronic program guide (EPG); A memory for storing the EPG separated by the demultiplexer; A graphic unit configured to display program information on a screen using the EPG stored in the memory; A controller configured to display program information on a screen using the EPG stored in the memory, and to control the program to be stored in the PVR according to a user's recording and reservation recording command; And And a video / audio processor configured to output a video / audio stream output from the PVR and a video / audio stream separated by the demultiplexer as a video / audio signal under the control of the controller. 3. The apparatus of claim 2, wherein the first and second wireless interface means; Wireless television receiver, characterized in that any one of a wireless LAN (WLAN), Bluetooth (Blue Tooth), UWB (Ultra Wide Band), Home RF. Separating the EPG from the transport stream transmitted by the transmitter of the wireless television receiver and storing the EPG in a memory; Extracting an EPG stored in the memory and displaying program information on the screen by using the extracted EPG when there is a user's EPG display command; Setting a reservation recording for a program selected by a user among programs displayed on the screen; And And recording the program on which the reserved recording is set in the PVR. 5. The method of claim 4, wherein the step of recording to the PVR; Transmitting a reservation recording control signal to the transmitter when the scheduled recording start time of the program for which the scheduled recording is set; Transmitting a transport stream by selecting a channel on which a program for setting the reserved recording is broadcasted according to the reserved recording control signal; Receiving a transport stream transmitted by the transmitter and generating a file name of a video / audio stream from the received transport stream; And And storing the received video / audio stream in the PVR under the generated file name. The method of claim 5, wherein the file name is generated, And generating a channel, a broadcast date and a broadcast time, and a program genre in which the reserved recording program is broadcast.

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