KR20040110638A - Method for recording same time broadcasting program in personal video recorder - Google Patents

Abstract

PURPOSE: A method for recording broadcasting programs of the same time zone in a PVR(Personal Video Recorder) system is provided to reserve and record desired all broadcasting programs by reserving and recording a broadcasting program, which is not rebroadcasted, in a real broadcasting time and reserving and recording a broadcasting program, which is rebroadcasted, in a rebroadcasted time. CONSTITUTION: If the power of a PVR system is turned on(S10), a CPU judges whether the reservation record of at least two or more programs is selected in the same time zone(S12). If the reservation record is selected in the same time zone, the CPU retrieves whether reservation record broadcasting programs are rebroadcasted from program guide data(S16). If at least two or more broadcasting programs are broadcasted, the CPU records one of the broadcasting programs in a real broadcasting time and records the other broadcasting programs in a rebroadcasting time(S18). If one of the broadcasting programs is actually broadcasted and the other programs are rebroadcasted, the CPU records the broadcasting program, which is not rebroadcasted, in a real broadcasting time and records the broadcasting program, which is rebroadcasted, in a rebroadcasting time(S22). If at least two or more broadcasting programs are not rebroadcasted, the CPU outputs a guide warning message(S30). The CPU receives a signal indicating whether a user selects the record of a certain broadcasting program among reserved broadcasting programs, and records the broadcasting program selected by the user(S32).

Description

METHOD FOR RECORDING SAME TIME BROADCASTING PROGRAM IN PERSONAL VIDEO RECORDER}

The present invention relates to a personal video recorder (PVR) system, and more particularly, a physical video recorder suitable for recording a broadcast program to a hard disk drive (HDD) which is a storage medium by using a physical video recorder system. The present invention relates to a recording method of a broadcast program in the same time zone in a VR system.

FV system is a new concept of digital recording device that records and plays back information on HDD unlike VCR (Video Cartridge Recorder) which stores video signal on magnetic tape. It is a next-generation recording device that can record a certain amount of broadcast programs depending on the capacity without a VCR through the HDD built into the set-top box or television body. Compared to a VCR, however, the program information is compressed and recorded on the HDD (MPEG2, etc.) and played back using a file playback method such as a computer, and with a memory chip containing a CPU (Central Process Unit), an operating system, and playback software for playback. The difference is that it contains a large HDD. You can store up to 30 hours of programs and record many programs at the same time. In addition, the modem is connected to a telephone line to receive the latest broadcast schedule from time to time to record recording, and to provide various services through the Internet. In addition, selecting a channel automatically saves the currently broadcast signal on the HDD and plays it back simultaneously. Therefore, if you press the stop button and then press the play button again, not only the stored broadcast signal is played again from the point where it was stopped, but also the current broadcast program can be viewed again or in slow motion, and there is a function to find or edit a desired program part.

In addition, the FB system can schedule program viewing according to personal choices and tastes, giving viewers more control over television. That is, viewers can watch the broadcast program they want when they want to see it, regardless of the program guide (EPG: Electronic Program Guide) prepared by broadcasters. The scheduled recording process can select a broadcast list on a television screen to record several programs simultaneously, and even stop live broadcasts, or repeat playback from a few seconds or minutes ago.

However, in recording a plurality of broadcast programs, programs that are broadcast in the same time zone cannot be recorded simultaneously on the HDD, so the user reserves the desired broadcast program according to the time depending on whether the broadcast program is rebroadcast or the main broadcast.

An object of the present invention is to find a broadcast program that is not re-broadcast according to whether or not to re-broadcast the broadcast program of the reservation recording target if the recording of the broadcast program of the same time zone is selected during the reservation recording to solve the problems of the prior art The present invention provides a method for recording a broadcast program in the same time zone in a FB system that facilitates the user by pre-recording a broadcast program rebroadcasted at the main broadcast time.

In order to achieve the above object, the present invention provides a method for recording a broadcast program in a FB system that records a broadcast program on an HDD which is a storage medium. Determining whether program recording is selected, if program recording is selected in the same time zone, searching whether program recording data is rebroadcasted from the program guide data, and searching the program guide data for at least two or more programs. When all the broadcast programs are re-broadcast, recording one program at the main broadcast time and recording other programs at the re-broadcast time, and the program guide data search result, when one broadcast program is only the main broadcast and another program is rebroadcast. Pro without rebroadcast Recording the gram in the main broadcast time and re-broadcasting the program with the re-broadcast, and when the program guide data search shows that at least two or more broadcast programs do not have the re-broadcast, a warning message is displayed and the scheduled recorded programs are recorded. And selecting which program to record from and recording the selected program.

1 is a configuration diagram of a FB system for recording a broadcast program of the same time zone according to the present invention;

2 is a flowchart illustrating a method of recording a broadcast program at the same time zone in a FB system according to an embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

10: input unit 12: CPU

14: first memory 16: HDD

18 LAN / Modem 20 Receiver

22: MPEG 24: second memory

26: audio decoder 28: video decoder

30: audio output unit 32: video output unit

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

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

1 is a block diagram of a FB system for recording a broadcast program of the same time zone according to the present invention. Referring to FIG. 1, the FB system applied to the present invention includes an input unit 10, a CPU 12, a first memory 14, an HDD 16, a LAN / modem 18, a receiver 20, MPEG 22, second memory 24, audio decoder 26, video decoder 28, audio output unit 30, and video output unit 32.

In this case, the input unit 10 is a part to which the overall operation command of the FV system is input. For example, the input unit 10 may be a key button or a remote controller.

The CPU 12 performs overall operation control of the FB system, controls broadcasting channel tuning, receives a program guide (EPG) packet from the receiving unit 20 to be described later, stores it in the HDD 16, and broadcast signal. Control of decoding (audio and video) and storing and reproducing broadcast signals to the HDD 16 is performed. Here, the program guide (EPG) packet information is information including a broadcast station name, a program name, a start / end time, etc. of a broadcast program for searching for and selecting a broadcast program. In addition, the CPU 12 searches for rebroadcasting of the reserved recording broadcast programs from the program guide information stored in the HDD 16 when at least two or more broadcast programs are reserved for the same time zone when the scheduled recording mode is to be performed according to the present invention. According to the search result, the broadcast program with rebroadcast is controlled to re-broadcast time, and the broadcast program without rebroadcast is recorded at the main broadcast time. If there is no re-broadcasting of the reserved recorded broadcast programs in the same time zone, the CPU 12 outputs a guide message of the first memory 14 to perform scheduled recording of the broadcast program according to a user selection.

The first memory 14 stores the overall operation (recording, playback, guide output, etc.) of the FV system software program. In particular, the reserved recording software program of the present invention is stored, which is linked to the CPU 12 and is the same. Record broadcast programs in the time zone normally.

The HDD 16 stores broadcast programs compressed by MPEG2 and the like and broadcast information such as a program guide (EPG).

The LAN / modem 18 connects a FV system and an external device to receive the latest program guide in real time, and makes reservation recording and provides various services through the Internet.

The receiver 20 tunes any one of a plurality of broadcast channels received through an antenna (not shown), extracts packet information of additional information (channel information, program guide information, etc.) inserted on the tuned stream of the tuned channel. Then, the extracted additional information packet data is transferred to the HDD 16 through signal processing such as conversion to an intermediate frequency and error correction, and the broadcast packet data of the selected channel extracted from the broadcast stream is converted into an intermediate frequency. After signal processing such as conversion and error correction, the data is transmitted to the MPEG 22.

The MPEG 22 compresses the broadcast packet data of the selected channel of the receiver 20 to a compression standard such as MPEG2 and transmits it to the HDD 16 or the audio / video decoders 26 and 28, and temporarily stores the second memory 24. Save to. At this time, the broadcast packet data stored in the second memory 24 is temporarily stored for a time set for the operation of the fibrous system such as previous video search, backward playback, slow playback.

On the other hand, in the audio decoder 26, under the control of the CPU 12, the MPEG 2 audio decoding technique is used to restore the original signal before encoding, and the restored audio signal is delivered to the audio output unit 30 and output. In response to the control of the CPU 12, the video decoder 28 performs variable length decoding, inverse DCT (decrete cosine transform), inverse quantization, motion compensation, and the like on the compression coded broadcast packet data (broadcast program) of a specific channel. The decoding method restores the original signal before encoding, and the restored video signal is transmitted to the video output unit 32 and output. In addition, in the audio decoder 26 and the video decoder 28, the compression-coded broadcast (audio, video) reproduced from the HDD 16 under the control of the CPU 12 when performing a playback mode other than the broadcast viewing mode. The signal is restored to the original signal before encoding and transmitted to the audio output unit 30 and the video output unit 32 for output.

A process of pre-recording at least two or more broadcast programs in the same time zone according to the present invention using the fiBAL system having such a configuration will be described with reference to FIGS. 1 and 2. 2 is a flowchart illustrating a method of recording a broadcast program at the same time zone in a FB system according to an embodiment of the present invention.

When the power of the FB system is turned on (S10), the CPU 12 includes a broadcast station name, a program name, a start / end time, etc. for searching and selecting a broadcast program from the receiver 20. The program guide (EPG) packet is received and stored in the HDD 16 (S11).

When the reservation recording mode is selected through the input unit 10, the CPU 12 determines whether the selected program reservation recording is two or more broadcast programs broadcast in the same time zone. (S12) In this embodiment, the description will be simplified. For this purpose, two broadcast programs PG1 and PG2 are limited.

If two program reserved recordings are selected in the same time zone, the CPU 12 searches whether program scheduled packet data stored in the HDD 16 is rebroadcasted.

When the PG1 and PG2 broadcast programs are both re-broadcasted as a result of S14 (S16), the CPU 12 records any one program broadcasted first, for example, PG1 at the main broadcast time, and the other broadcast program PG2 at the rebroadcast time. Control (S18)

Accordingly, the CPU 12 transmits the broadcast packet data of the channel-tuned PG1 channel in the stream transmitted through the receiver 20 at the main broadcast time of the PG1 to the MPEG 22 after undergoing signal processing such as conversion and error correction. . MPEG 22 compresses broadcast packet (audio and video) data of a selected channel to a compression standard such as MPEG2, stores PG1 programs on HDD 16, records them, and simultaneously records them to audio / video decoders 26 and 28, respectively. To pass. Accordingly, the audio / video decoders 26 and 28 restore the original signal before encoding using the MPEG audio / video decoding technique and transmit the audio / video decoders 26 and 28 to the audio / video output units 30 and 32. The audio / video signal of the recovered PG1 is output and played back. The CPU 12 compresses the PG2 broadcast program using the MPEG 22 in the same process as described above at the time of re-broadcasting of the PG2, stores the video on the HDD 16, records it, and simultaneously records the PG2 broadcast program with the audio / video decoders 26 and 28. Playback is performed through the output units 30 and 32.

As a result of the search in S14, if one broadcast program is only in the main broadcast and another program is rebroadcast (S20, S24), the CPU 12 records the program without the rebroadcast, the PG2 at the main broadcast time, and the program with the rebroadcast, PG1. Control to record at the rebroadcast time (S22) or the CPU 12 records the PG1 program without rebroadcast at the main broadcast time and record the PG2 program having the rebroadcast at the rebroadcast time (S26).

As a result of the determination in S14, when both the PG1 and PG2 broadcast programs are not rebroadcasted (S28), the CPU 12 outputs the guide warning message of the first memory 14 to the video output unit 32 (S30). According to the scheduled recording command of the broadcast program inputted through), the PG1 is set to schedule recording by selecting PG1 or the schedule recording by selecting PG2 (S32).

In the broadcast program recording method of the same time zone according to the present invention, when there are two or more broadcast programs broadcasted in steps S18, S22, and S26, and these main broadcast times are the same, as in S32, the CPU 12 uses the first memory ( The guide warning message of 14) is output to the video output unit 32 to ask which broadcast program to record. Accordingly, when the user inputs a command to select any arbitrary broadcast program through the input unit 10, the CPU 12 reserves and records the selected broadcast program. There are also two or more re-broadcast programs and the CPU 12 proceeds as above even when these re-broadcast times are the same.

As described above, according to the present invention, if the recording of the broadcast program of the same time zone is selected during the scheduled recording, the program guide searches for the re-broadcasting of the broadcast program targeted for the reserved recording, and then rebroadcasts the broadcast program that is not rebroadcasted in the main broadcast time. By reserving the broadcast program at the time of re-broadcast, it is more convenient to reserve recording of the user and there is an effect of reserve recording all desired broadcast programs.

On the other hand, the present invention is not limited to the above-described embodiment, various modifications are possible by those skilled in the art within the spirit and scope of the present invention described in the claims to be described later.

Claims (3)

In the method of recording a broadcast program in a fibral system for recording the broadcast program on a storage medium, Determining whether at least two program reservation recordings are selected in the same time zone when the fibral system is powered on; If program reservation recording is selected in the same time zone, searching whether program reservation data is rebroadcasted from the program guide data; Retrieving the program guide data and recording one program at the main broadcast time and recording other programs at the re-broadcast time when all of the at least two broadcast programs are rebroadcasted; If the program guide data search results, if one of the broadcast program is only the main broadcast and the other program is re-broadcast, recording the program without re-broadcast at the main broadcast time and recording the program with the re-broadcast at the re-broadcast time, Outputting a warning message when the at least two broadcast programs do not rebroadcast as a result of the program guide data search, and selecting which program to record among the reserved recorded programs and recording the selected program; Broadcast program recording method of the same time zone in the FB system including a. The method of claim 1, If all of the at least two broadcast programs are re-broadcasted, any one program is recorded at the main broadcast time and other programs are recorded at the re-broadcast time, and the re-broadcast recording of the programs is recorded according to the re-broadcast time, but the same re-broadcast time is broadcast. If there are programs, the method of recording a broadcast program of the same time zone in a FB system, characterized by recording a selected broadcast program by outputting a guide warning message and selecting which broadcast program to record. The method of claim 1, If one of the broadcast program is only the main broadcast and the other program is re-broadcast, recording the program without re-broadcast in the main broadcast time and recording the program with the re-broadcast in the re-broadcast time, the recording of the broadcast program with the re-broadcast is re-broadcast time If there are broadcast programs with the same re-broadcast time, a warning message is outputted to select which broadcast program to record and to record the selected broadcast program. How to record.