JP3796203B2 - Broadcast receiver with recording device control function - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a broadcast receiving apparatus with a recording apparatus control function for receiving and recording a digital broadcast.
[0002]
[Prior art]
For example, in a digital broadcast receiving system using a satellite, a video / audio signal is compressed using a digital signal compression technique, and a stream (transport stream) in which video / audio digital signals of a plurality of programs are time-division multiplexed is used as a transponder. Broadcasts via (satellite repeater). On the other hand, a broadcast receiving apparatus that receives such a digital broadcast selects one of a plurality of digital broadcast transponders received through an antenna by a tuner and selects one of a plurality of channels included in the one transponder. Is selected by a demultiplexing process, and a video / audio signal is output by decoding the digital signal of the selected channel.
[0003]
In such digital broadcasting, in addition to transmitting video and audio as in the case of conventional analog broadcasting, additional information (program name, program content, program start time, program duration, genre code, etc.) is also transmitted. On the receiving device side, an EPG (Electronic Program Guide) display function using an OSD (On Screen Display) function can select a program desired by the user from multi-channel broadcasting. In addition, the program genre information can be used to extract and display a list of programs having genre information corresponding to the genre input by the user. Furthermore, the EPG function can be used to select a program scheduled to be broadcast on the EPG and make a recording reservation. As for the recording of programs, conventionally, using a video cassette recorder (VCR) or the like, a reserved channel is automatically set and a received program is recorded when the reserved program starts. . It is also possible to record on a recording device such as a built-in hard disk, or to mount IEEE 1394 as an interface and record the received program on a recording device such as an external hard disk or D-VHS.
[0004]
[Problems to be solved by the invention]
By the way, as described above, the EPG display and the program list display by genre search are useful for determining the program to be viewed by the user from among the multi-channels. However, the contents of each program are fully understood. Because it is not possible, it may not be possible to narrow down the programs to be viewed. When there are many programs to be viewed, it is difficult to view or record all the programs due to restrictions on viewing time and the amount of recorded data. Also, if the program you want to watch is broadcast at the same time, you can watch it while switching channels in a short time using the remote control transmitter, but if you are recording, select one program. There must be.
[0005]
In view of the above circumstances, an object of the present invention is to provide a broadcast receiving apparatus with a recording device control function that can confirm the atmosphere of a plurality of programs when there are a plurality of programs to be viewed.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, a broadcast receiving apparatus with a recording apparatus control function according to the present invention includes a receiving means for receiving a digital broadcast wave and a means for receiving a recording reservation for a plurality of programs regardless of overlapping program broadcast times. And a control means for sequentially receiving the plurality of programs during the broadcast time and recording a part of each program on a recording device.
[0007]
With the above configuration, by making a recording reservation for a plurality of programs that the user wants to watch, a part of the plurality of programs is sequentially recorded on the recording device, and the atmosphere of the plurality of programs is given at once. It becomes possible to confirm.
[0008]
It is preferable that the recording control is performed so that a part of each program is as early as possible.
[0009]
The broadcast receiving device with a recording device control function according to the present invention comprises a receiving means for receiving a digital broadcast wave, a means for accepting a recording reservation for a plurality of programs regardless of overlapping program broadcast times, and the plurality of programs. It is characterized by comprising control means for receiving repeatedly in sequence during the broadcast time and causing the recording device to record a plurality of portions of each program.
[0010]
With the above configuration, for example, a plurality of parts are recorded from the beginning to the end of the program, so that the atmosphere of the program becomes easier to understand.
[0011]
The control means performs a plurality of partial recordings of each program, generates information corresponding to the recording position on the recording medium, and receives an instruction to reproduce the specified program, the program specified based on the information It is preferable to be configured to continuously reproduce only the image. According to this, for example, when a plurality of parts of each program are recorded in the order of program A → program B → program C → program A → program B → program A, when a playback instruction for program A is received, Only the recorded part of the program A is continuously played back, and the operation load such as playback / fast forward or search by the user can be reduced.
[0012]
The broadcast receiving apparatus with a recording device control function according to the present invention sequentially develops receiving means for receiving a digital broadcast wave, means for accepting a recording reservation for a data broadcast program, and hierarchical contents of the data broadcast program. Control means for recording an analog video signal of each content on an analog recording device for a predetermined time.
[0013]
With the above configuration, even when an analog recording apparatus is used, each content can be viewed in sequence as if the predetermined item portion of the data broadcast program is operated and viewed sequentially.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 4. Here, a case where a user views a BS (Broadcasting Satellite) digital broadcast is illustrated. FIG. 1 is a block diagram showing a broadcast receiving device 30 with a recording device control function of this embodiment, FIG. 2 is an explanatory diagram of program partial recording processing, and FIG. 3 is an explanatory diagram of program partial recording / playback processing. FIG. 4 is an explanatory view showing an analog recording process of data broadcasting.
[0015]
In FIG. 1, an antenna 1 is arranged outdoors in a predetermined direction, and receives a digital broadcast wave transmitted from a BS. The antenna 1 is generally provided with a frequency converter, and supplies a received / frequency converted signal to the tuner 2.
[0016]
The tuner 2 extracts a specific frequency from the received high frequency digital modulation signal. That is, a process of selecting one from a plurality of transponders of digital broadcasting is performed. Further, the tuner 2 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, thereby demodulating the selected digital modulation signal and outputting a transport stream.
[0017]
The demultiplexer (DEMUX) 3 separates the transport stream output from the tuner 2 into an MPEG2 (Moving Picture Experts Group 2) video stream, an audio stream, and PSI / SI (Program Specific Information / Service Information). Then, the TS decoder 3a in the demultiplexer 3 takes out a transport stream (hereinafter referred to as a partial TS) constituting the program selected by the user based on a command (instructed PID) of the MPU 17, and records the stream. This is supplied to the playback unit 4 and the AV decoder 7. A process for selecting an arbitrary channel can be performed by extracting data such as which packet ID (PID) is multiplexed in the transport stream from the PSI / SI. In addition, transport stream selection (transponder selection) can also be performed based on PSI / SI information. Further, the service information (SI) includes program information (program contents, program start time, program duration, genre code, etc.).
[0018]
The stream recording / playback unit 4 can write (record) the partial TS output from the TS decoder 3a to a hard disk drive (HDD) 6 that is a built-in recording device, and can read the partial TS from the hard disk drive 6 (playback). ). Further, the stream recording / playback unit 4 also inputs / outputs a partial TS to / from a digital external recording device (D-VHS, hard disk, MO, etc.) 31 through the IEEE 1394 interface 5. These recording / reproduction and input / output commands are performed by the MPU 17.
[0019]
The AV decoder 7 includes a video decoder that decodes a video stream and an audio decoder that decodes an audio stream. The video decoder decodes the input variable length code to obtain a quantization coefficient and a motion vector, and performs inverse DCT conversion, motion compensation control based on the motion vector, and the like. The audio decoder decodes the input encoded signal to generate audio data.
[0020]
The video processing circuit 8 receives video data from the AV decoder 7 and performs D / A conversion, for example, to convert it into a composite video signal. The audio signal processing circuit 9 receives the audio data output from the AV decoder 7 and performs D / A conversion to generate, for example, a right (R) sound analog signal and a left (L) sound analog signal.
[0021]
The video output circuit 10 and the audio output circuit 11 include an output resistor, an amplifier, and the like. The AV output terminal 12 is provided with an output unit (a set of left and right audio output terminals, video output terminals, etc.). This output unit includes a monitor 14 having a display and a speaker and an analog signal for recording an analog signal video. The external recording device 32 is connected by the video / audio code 13.
[0022]
The recording device remote control transmitter 33 is a transmitter for sending a command to the analog external recording device 32. The recording device remote control transmitter 33 receives a command from the MPU 17 and receives signal light (remote control signal) indicating the command content from a light emitting unit (not shown). Output. The MPU 17 can perform a command process based on a remote control code in a recording device of each company. When a command is given to the analog external recording device 32, the MPU 17 is used for the recording device based on the remote control code used in the analog external recording device 32. The remote control transmitter 33 is driven.
[0023]
The OSD circuit 19 generates video data based on character information and color information instructed to be output from the MPU 17 and outputs the video data to the adder 20. The adder 20 performs processing for incorporating the video data into the received video data output from the AV decoder 7. The OSD circuit 19 realizes EPG screen display and the like.
[0024]
The remote control transmitter 15 is a transmitter for sending a command to the broadcast receiving apparatus 30. When a key provided on the remote control transmitter 15 is operated, signal light (remote control signal) indicating a command corresponding to the key is transmitted from a light emitting unit (not shown). The remote control light receiver 16 receives the signal light, converts it into an electrical signal, and gives it to the MPU 17.
[0025]
The memory (for example, EEPROM) 18 stores information for selecting a transponder, service information used for EPG (program name, program content, program start time, program duration, genre code, etc.), information about a recorded program, etc. Are stored by the processing of the MPU 17.
[0026]
The MPU 17 performs overall control in the broadcast receiving device 30 with a recording device control function, and in particular, executes program partial recording / playback control described below as control according to the present invention.
[0027]
FIG. 2 is an explanatory diagram showing an example of a recording control process in which the digital external recording device 31 is used to record the first 3 minutes of a program. For example, the user can select the “partial recording” item from the menu screen and make a partial recording reservation for program A (Ch100), program B (Ch101), and program C (Ch102) with overlapping broadcast times. At the broadcast start time of the reserved program, the MPU 17 sends a recording execution command to the digital external recording device 31 using the IEEE 1394 interface 5 and executes reception processing for Ch100 of the program A, which is output from the TS decoder 3a. A control command is issued to the stream recording / reproducing unit 4 so as to supply the partial TS to the digital external recording device 31 via the IEEE 1394 interface 5. Then, when the recording time (3 minutes) of program A elapses, recording of program B is subsequently executed. When the recording time (3 minutes) of the program B has elapsed, the MPU 17 sends a recording stop command to the digital external recording device 31 via the IEEE 1394 interface 5. Furthermore, when the broadcast start time of the program C is reached, the MPU 17 executes control for causing the digital external recording device 31 to record the program C for 3 minutes. Accordingly, the first three minutes of each program are recorded by the digital external recording device 31. According to this, even when the broadcast times of programs to be viewed overlap, the beginning of each program is recorded and reproduced, which is suitable for confirming the atmosphere of each program.
[0028]
FIG. 3A is an explanatory diagram showing a recording control process in the case where recording is repeatedly performed for 3 minutes every 12 minutes using the tape type analog external recording device 32. In order to realize a program playback process to be described later, information for specifying each program at the time of recording and recording management information (for example, recording start / end time information) corresponding to the recording position of each program part are recorded in the memory 14. I decided to. In the case of D-VHS, tape running counter information can be used as recording management information, and in the case of a disk-type recording apparatus, address information on a recording medium can be used as recording management information. Here, it is assumed that recording is reserved for the program A (Ch100), the program B (Ch101), and the program C (Ch102) with overlapping broadcast times, and recording is performed using the analog external recording device 32. At the broadcast start time of the scheduled recording program, the MPU 17 sends a command to the tuner 2 to select Ch100 of the program A, and sends a control signal indicating recording to the remote control transmitter 33 for the recording apparatus. The analog external recording device 32 that has received the remote control signal indicating recording from the recording device remote control transmitter 33 executes the recording process. Then, when the recording time (3 minutes) of the program A elapses, the MPU 17 selects the Ch 101 of the program B while continuing the recording process of the analog external recording device 32. When the recording time (3 minutes) of the program B elapses, the MPU 17 instructs the analog external recording device 32 to stop recording. At this time, since only the program A and the program B are the recording target programs, the recording standby state is set, and when 12 minutes have elapsed from the start of the recording, the recording of the programs A and B is again performed for 3 minutes each. Since the program C reaches the broadcast start time when 3 minutes have elapsed from the end of the partial recording of the program B, the MPU 17 causes the tuner 2 to select Ch 103 of the program C and causes the analog external recording device 32 to record for 3 minutes. become. The plural partial cyclic recording processing is continued until the end of the program B having the latest end time.
[0029]
FIG. 3B is an explanatory diagram showing a process for reproducing only the program A. Program A (A1, A2, A3), program B (B1, B2, B3, B4), and program C (C1) are mixedly recorded on the recording tape of the analog external recording device 32. When the reproduction of A is instructed, the MPU 17 refers to the recording management information recorded at the time of recording, and executes tape reproduction / fast-forward control like A1 recording partial reproduction → fast forward → A2 recording partial reproduction → fast forward → A3 recording partial reproduction. . When it is determined that the recording portion of the program A has ended based on the recording management information, the reproduction processing of the analog external recording device 32 is stopped. In this way, only the recorded part of the program A is automatically played back continuously, and the operation load such as playback / fast forward or search by the user can be reduced.
[0030]
In the above description, the digital recording device 31 that is an external recording device and the analog external recording device 32 are used for recording, but the recording may be performed on the hard disk drive (HDD) 6 that is a built-in recording device. . Also, in a recording device using a disk recording medium, the designated program can be reproduced without interruption by quickly moving the head to the next partial recording location of the same program without using the fast-forward shown in FIG. Can continue.
[0031]
In the above description, recording at the beginning of a program and repeated recording at a 12-minute period have been described as examples. However, the present invention is not limited to such recording control, and the use permission storage capacity and tape amount specified in advance by the user. You can also automatically calculate the partial recording time and period of each program from the number of reserved programs and the program time, or the desired recording time zone (the first half of the program, the middle part, the second half, etc.) ), Recording time, recording period (for example, repetitive recording every 12 minutes), and the like may be specified by the user.
[0032]
FIG. 4A is an explanatory diagram showing a hierarchical structure in data broadcasting, and FIG. 4B is an explanatory diagram showing analog recording of the content in FIG. As shown in FIG. 4 (a), data broadcasting allows viewing of lower layer contents (1-1, 1-2,...) By operating predetermined items on the basic page (content 1). . In digital recording, it is possible to record the contents including the lower layer contents and read the lower layer contents according to the item operation at the time of reproduction. I don't know. Therefore, the broadcast receiving device 30 with a recording device control function performs a process corresponding to operating a predetermined item after recording the analog video of the basic page (content 1) in the analog external recording device 32 for a predetermined time. Then, the lower layer contents (1-1, 1-2,...) Are taken out and sequentially converted into analog videos, and the analog video of each content is recorded in the analog external recording device 32 for a predetermined time. With such a configuration, even when the analog external recording device 32 is used, the user can sequentially reproduce and view each content as if the data broadcast program was sequentially operated by browsing the predetermined item portion.
[0033]
【The invention's effect】
As described above, according to the present invention, the atmosphere of a plurality of programs can be confirmed when there are a plurality of programs to be viewed. In addition, even when only an analog external recording device is provided, the user can sequentially reproduce and view each content as if the predetermined items of the data broadcast program were operated and viewed. .
[Brief description of the drawings]
FIG. 1 is a block diagram showing a broadcast receiving apparatus with a recording apparatus control function according to an embodiment of the present invention.
FIG. 2A is an explanatory diagram of program partial sequential recording processing.
FIG. 3A is an explanatory diagram of program partial cyclic recording processing, and FIG. 3B is an explanatory diagram of playback processing of a designated program.
FIG. 4 is an explanatory diagram showing an analog recording process of data broadcasting.
[Explanation of symbols]
1 Antenna 2 Tuner 3 Demultiplexer (DEMUX)
3a TS decoder 4 stream recording / playback unit 5 IEEE 1394 interface 7 AV decoder 17 MPU
18 Memory 19 OSD circuit 31 External recording device for digital 32 External recording device for analog 33 Remote control transmitter for recording device

Claims (1)

  Receiving means for receiving a digital broadcast wave; means for accepting a recording reservation for a data broadcast program and executing reception by the receiving means at a specified date; A broadcast receiving device with a recording device control function, comprising: a control unit that sequentially develops the content and records an analog video signal of each content on the analog recording device for a predetermined time.

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