JP2003348509A - Information recording apparatus, broadcast receiving apparatus and information recording system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information recording apparatus which effectively utilizes and records information obtained from a broadcast receiving apparatus, and to provide the broadcast receiving apparatus and an information recording system. <P>SOLUTION: The information recording apparatus has: a communication part 23 connected to an external broadcast receiving parts B for receiving program information (EPG information) therefrom; a reservation recording function 19 for producing programming information based upon the received program information; and recording functions 13, 15, 17, 18 and 19 for performing reservation recording of information signals onto recording media 17 and D based upon AV signals acquired from the broadcast receiving apparatus B in accordance with the reservation information. <P>COPYRIGHT: (C)2004,JPO

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
The present invention relates to a broadcast receiving device that separates and outputs G information, an information recording device that performs reservation recording using various information received from the broadcast receiving device, and an information recording system using these.

[0002]

2. Description of the Related Art Recently, an optical disk reproducing apparatus for reproducing moving images, which reproduces an optical disk on which data such as video and audio data is recorded, has been developed. For example, movie software such as LD (Laser Disc) and video CD, karaoke, etc. It is widely used for the purpose.

[0003] Among them, currently, MPEG standardized internationally
DVD (Digi) using the AC3 audio compression method using the Moving Image Coding Expert Group (2) method
tal Versatile Disc) -Video standard has been proposed.

This standard supports MPEG2 as a moving picture compression system, AC3 audio, MPEG audio, and linear PCM as audio according to the MPEG2 system layer, and further executes sub-picture data obtained by run-length-compressing bitmap data for subtitles, and fast-forwarding. Control data for special playback such as rewind (navi pack) is added. In addition, this standard supports ISO9660 and micro UDF so that data can be read by a computer. After that, DVD-RA
M was announced, and a rewritable disc having a capacity of 2.6 Gbytes and 4.7 Gbytes has been realized.

[0005] On the other hand, a recording medium typified by a DVD-RAM can record computer data and disk management information in addition to video data. Therefore, at present, RTR (Real TRT), which is a DVD video standard capable of real-time recording and reproduction using the DVD-RAM.
ime Recorder)-The DVD standard has been completed and is being sold by various companies.

This standard conforms to the DVD-
It is considered based on the Video standard. Where D
In VD video, video signal processing is A / D converted after input, and digital signal processing is performed. here,
The digitized signal of the video signal will be digitized based on the CCIR656 standard.

In recent years, with the generalization of digital broadcasting, DTVs (Digital Televisions) corresponding to the generalization of digital broadcasting have become widespread. The digital television uses an IEEE 1394 interface as a communication standard, and uses EPG (Electronic Program G) as program information.
uide) to make program reservations.

[0008] Japanese Patent Application Laid-Open No. H11-225292 discloses a prior art which discloses a receiver that handles the EPG.
This receiver has a tuner and shows processing for handling EPG information.

[0009] However, even with the receiver disclosed in the prior art, the current DVD recorder cannot use EPG information or SI, which is program information of digital television, so that information such as the program name must be manually input by the user. There is a problem that a reservation recording or the like must be performed after inputting.

[0010]

That is, the conventional EP
Even if there is a receiver that handles G, a conventional information recording device such as a DVD recorder cannot use information from a digital television, for example, EPG information that is program information and reservation information based on the information. There is a problem that processing such as recording cannot be performed.

An object of the present invention is to provide an information recording apparatus, a broadcast receiving apparatus, and an information recording system for performing a recording process using information provided from a digital television such as program information and reservation information.

[0012]

SUMMARY OF THE INVENTION The present invention relates to an information recording apparatus, which is connected to an external broadcast receiving apparatus and receives program information therefrom. Based on the reservation means for generating reservation information, and obtains an information signal from the broadcast receiving device via the communication means according to the reservation information generated by the reservation means,
Recording means for performing reservation recording on a recording medium based on the information signal.

As described above, the information recording apparatus such as a DVD recorder of the present invention receives program information such as EPG information from an external digital television or the like, and displays the program information on an operation screen or the like based on the program information. Thus, the setting of the scheduled recording is performed according to the operation of the user. This allows
Even if the DVD recorder does not have a satellite broadcast tuner or an EPG extraction function, by using EPG information supplied from an existing digital television or the like, it is possible to make highly convenient reservation recording settings and furthermore, to record programs to be recorded. An object of the present invention is to provide an information recording device capable of recording information such as a title as management information together with video and audio.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an information recording apparatus and a broadcast receiving apparatus according to embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a broadcast receiving device and an information recording device according to an embodiment of the present invention.

<Recording / Reproducing Apparatus and Broadcast Receiving Apparatus> An information recording / reproducing apparatus according to an embodiment of the present invention and a digital television as a broadcast receiving apparatus will be described in detail below. An optical disc recording / reproducing apparatus A, which is an information recording / reproducing apparatus, has a structure shown in FIG.
As shown in FIG.
An input unit 11, a TV tuner unit 12, which receives and demodulates a broadcast signal from an external antenna or the like and outputs a demodulated signal;
An encoder unit 13 for encoding a demodulated signal from the V tuner unit 12 and extracting an audio signal or a video signal; Further, an audio signal or a video signal encoded by the encoder unit 13 is supplied, and the data processor unit 15 includes a data processor unit 15 for processing the data.
STC (System Tim) that counts the system time
e Counter) section 16, a hard disk drive buffer section 17 for recording video signals, audio signals, etc. and management signals, and a DVD for recording video signals, audio signals, etc., and management signals in the same manner.
(Digital Versatile Disc) or the like, and is connected to a disk drive unit 18 that drives an optical disk D. Further, it has a main MPU section 19 for controlling the entire processing operation.

The apparatus further includes a decoder section 14 for decoding a given video signal or the like when recording it, and is further connected to a frame memory control section 20, a frame memory section 21, and a frame memory control section 20. A D / A converter section 22 is provided.

Further, it has an IEEE 1394 interface unit 23 which is a communication function for transmitting and receiving management information and the like from an external digital television or the like which is a broadcast receiving device described later.

Here, the encoder unit 13 includes an A / D converter 24 which receives the audio / video signal supplied from the AV input unit 11 and converts it into a digital signal, a video encoding unit 25 which encodes a video signal from the digitized signal, It also has an audio encoding unit 26 for encoding an audio signal, and a formatter unit 27 for formatting these video and audio signals into a predetermined format.

Further, the decoder section 14 includes a separating section 28 for separating a given signal, a video encoding section 29 for encoding a video signal from the given signal, an SP decoding section 30 for performing an encoding process, and an audio signal for encoding. An audio decoding unit 31 for processing, and a video processing unit 32 for processing a video signal
And Further, it has a D / A converter 33 that converts the decoded audio signal into an analog signal and outputs the analog signal.

Further, a main M for performing the entire processing operation is provided.
The PU unit 19 functions as an EPG (Electronic Program Guide) or an EPG setting unit 34 for setting an EPG received from the IEEE 1394 interface 23 for receiving reservation information and the like from the broadcast receiving apparatus B, and a work used for data processing. It has a RAM unit 35. Furthermore, I
IEEE 1394 command interpreter 36, loader 3 for receiving, interpreting, and processing IEEE 1394 commands
7, a timer recording information search unit 38 for comparing the timer recording information provided from outside with the timer recording information recorded therein.

Further, the digital television B, which is a broadcast receiving apparatus, has a digital tuner section 42, and receives a broadcast signal transmitted from a communication satellite S which receives and relays a broadcast signal from a broadcast station H. A broadcasting signal is supplied from a satellite antenna P that performs the following. The digital tuner unit 42 demodulates the broadcast signal and supplies it to the separation unit 43 as a TS stream. In the separation unit 43, an EPG (Electronic Program)
Guide) information is separated and supplied to the main CPU unit 48,
Further, the video signal is supplied to the video decoding unit 44, and the audio signal is supplied to the audio decoding unit 46. Then, the video information from the video decoding unit 44 is supplied to a display unit 45 such as a display to display an image, and the audio signal from the audio decoding unit 46 is further supplied to the speaker 4.
7 to play a sound.

The main CPU unit 48 is provided with a separate EP.
It has an EPG information transfer unit 49 having a function for delivering G information to an external device, and a work RAM unit 50 for performing predetermined processing.

The AV signal is directly output from the video decoding unit 44 and supplied to the AV input unit 11 of the optical disk recording / reproducing apparatus A, which is an information recording / reproducing apparatus, so that the AV signal demodulated by the digital television B is recorded. It is also possible to do.

(Explanation of Operation) According to the optical disk recording / reproducing device A as the information recording / reproducing device and the digital television B as the broadcast receiving device having such a configuration, the recording process is performed as follows. That is, first, the digital tuner unit 42 receives a radio wave from the broadcasting station H via the satellite antenna P, converts it into a TS stream,
Transmits each packet to each decoder.

That is, the video packet is transmitted to the video decoding unit 44, the audio packet is transmitted to the audio decoding unit 46, and the SI packet (PAT, PMT, EIT, etc.) is transmitted to the MPU unit 48.

At the same time, the packet data is transmitted to the 1394 interface 41,
It is also possible to send a packet stream to an external information device such as an optical disk recording / reproducing device A through 1 and record the stream data in the optical disk recording / reproducing device A. The video signal decoded by the video decoding unit 44 is sent to the display unit 45 for display.
It is also possible to supply the data to the optical disk recording / reproducing device A and perform the recording process.

In the optical disk recording / reproducing apparatus A, the input AV signal is digitally converted by the A / D converter 24. The digital signal is transmitted to each of the encoder units 25 and 26.
Is input to The video signal is supplied to the video encoder 25.
To the audio encoding unit 26,
Character data such as teletext is input to an SP encoder (not shown). Then, the video signal is subjected to MPEG compression, the audio signal is subjected to AC3 compression or MPEG audio compression, and the character data is subjected to run-length compression.

From each encoder, the compressed data is packetized to be 2048 bytes when packed, and input to the formatter 27. In the formatter unit 27, each packet is packed, further multiplexed, and sent to the data processing unit 15.

The data processing section 15 forms an ECC block for every 16 packs, attaches error correction data thereto, and records the data on the disk D by the disk drive section 18. Here, when the disk drive unit 18 is busy for seeking or track jumping, the disk drive unit 18 is put into the hard disk buffer unit 17 and waits until the disk drive unit 18 is ready.

Further, in the formatter section 27, during recording,
Each segmentation information is created and sent to the MPU unit 19 periodically (GOP head interrupt, etc.). As isolation information,
The number of VOBU packs, the end address of the I picture from the beginning of the VOBU, the playback time of the VOBU, and the like.

Further, information about the recorded program is received from the 1394 interface unit 23, and the
Based on this information, the unit 19 performs PGI, TXTDT, ST
Create I, etc. Here, the PGI has a structure as shown in FIG. 4 described later, and the program name and the like are indicated by PRM_TXT.
I, and the type of code system used at that time is V
Record in CHR in MG_MAT.

The STI has a structure as shown in FIG. 5, which will be described later. The STI stores resolution data, aspect data, and the like. At the time of reproduction, each decoder section performs initial setting based on this information.

Further, TXTDT_MG corresponds to FIG.
The text information other than the program name is entered into IT_TXT, and the type of code system used at that time is recorded in the CHR in TXTDTI.

The optical disk recording / reproducing apparatus A, D
In the VD recording / reproducing apparatus, a video file is processed as one file on one disk.

<Directory Structure> Next, the directory structure of the DVD of the information recording apparatus according to one embodiment of the present invention will be described with reference to the drawings. 2 is an explanatory diagram showing a directory structure of a DVD of the information recording apparatus according to an embodiment of the present invention, FIG. 3 is an explanatory diagram of a VOBS having a directory structure, and FIG. 4 is an explanatory diagram of a PGI having a directory structure. 5
Is an explanatory diagram of a directory structure STI, and FIG. 6 is an explanatory diagram of a directory structure TXTDT_MG.

In a DVD (Digital Versatile Disc),
The data is stored in a normal file format. Furthermore,
The title corresponds to, for example, one movie, and one disc D includes a plurality of titles. A collection of the titles is called a title set, and the title set is composed of a plurality of files.

In FIG. 2, below the ROOT 61, the DV
DVD_RTAV 62 has at least VR_MANGR.D_RTAV 62 and AUDIO_TS 63 as management information. IFO, VR_MOVIE.
VRO, VR_STILL. VRO, VR_AUDI
O. VRO, VR_MANGR. BUP.

Further, AUDIO_TS 63 is an AMGI
AUDIO_TS. AUDIO.IFI and AMGI. _TS. BU
P, ATSI file as ATS_01. IFO,
ATS audio object file, ATS
_01. Each has at least AOB.

As described above, a directory exists for each standard in the DVD, and a VIDEO is used in the DVD-Video.
For O_TS and DVD-AUDIO, AUDIO_T
S, RTR-DVD, DVD_RTR.
Each record data exists in this directory.

As described above, DVD-Video
In this case, one disc contains a Video Man as information for managing the data of the DVD-Video.
There is a file called an ager (hereinafter referred to as VMG).

Further, in a title set (hereinafter referred to as a VTS), information for managing the title set includes Video Title Set Information.
on (hereinafter referred to as VTSI) management information file and a video file composed of video data and VTSI
Consists of backup files.

For RTR-DVD, the VTSI and VM
The GIs are joined together and configured as a new VMGI.

Further, as shown in FIG. 3, the video file has a hierarchical structure, and one Video O
The project Set 64 is composed of a plurality of VOBs 65, one VOB 65 is composed of a plurality of VOBUs 66, and one VOBU 66 is composed of a pack 67 composed of a plurality of various types of data. A pack is composed of one or more packets and a pack header.

Next, in FIG. 4, the order in which data is reproduced is defined by a PGC (Program Chain).
In C, a plurality of PGs (Programs) are registered.
, A cell is registered, and a VOB is registered in the cell as an object to be reproduced. The UD_PGC_S included in the UD_PGCIT 69 included in the VMG 68 shown in FIG.
RP # n, UD_PGCI # 1, and ORG_PGC
PGI which is PGIT71 included in PGCI70 of I
72. The reproduction process is performed according to the PGCI 70, and the PGCI 70 is created at the time of recording or editing.

Next, in the DVD recording / reproducing apparatus, a special PGC for reproducing in the recording order is called an original PGC, and the information of the original PGC is ORG_PGCI7.
0 is recorded. Further, the attribute information (resolution information, aspect information, audio attribute information, etc.) of the video data at this time is recorded in the STI in the VMGI shown in FIG. That is, in FIG.
Recorded in M_VOB_STI 74 included in FIT 73.

Further, if the program name and the like are known,
The program name is stored in PRM_TXT in PGI 72 of FIG. Miscellaneous text information such as other actor names,
I of the TXTDT_MG 75 in the VMG 68 shown in FIG.
Record in TEM_TXT 78 and save pointer in PGI 72. Further, FIG. 6 shows the contents of TXTDT_MG 75 as TXTDTI 76, IT_TXT_SRP7.
7 is shown.

A pack is a minimum unit for performing data transfer processing. Further, the minimum unit for performing logical processing is a cell unit, and the logical processing is performed in this unit.

<Description of Operation> An information recording / reproducing apparatus according to the present invention and a digital television B as a broadcast receiving apparatus will be described with reference to the flowcharts of FIGS.

FIG. 7 is a flowchart for explaining the processing operation of the broadcast receiving device and the information recording device according to the first embodiment of the present invention, and FIG. 8 is a flowchart illustrating the processing operation of the broadcast receiving device and the information recording device according to the second embodiment. Flowchart for explaining the processing operation of
FIG. 9 shows reservation information and EPG according to an embodiment of the present invention.
FIG. 4 is an explanatory diagram of information.

<Operation of First Embodiment> In the first embodiment,
EPG information, which is program information, is supplied from the digital television B to the optical disc recording / reproducing apparatus A, and the optical disc recording / reproducing apparatus A generates reservation information and performs reserved recording.

In the flowchart of FIG. 7, first, a digital broadcast is received from the digital television B (S1).
1). When the optical disc recording / reproducing apparatus A performs a reservation operation, the optical disc recording / reproducing apparatus A transmits a command for receiving EPG information to the digital television B according to IEEE 139.
4 via the interface unit 23 (S3
1). Upon receiving this command (S12), the digital television B interprets the received command (S13), and upon receiving a broadcast signal, extracts the PAT and PMT therefrom (S12).
14) In the case of the EPG transmission command, the EPG information which is the program information is separated from the broadcast signal by the processing of the separation unit 43 according to the information of the PMT (S15). Then, the EPG information is transmitted as data to the optical disk recording / reproducing apparatus A via the IEEE1394 interface unit 41 (S
16).

When the latest EPG information cannot be obtained when acquiring the EPG information, the EPG information recorded at the time of the previous communication is stored in a predetermined storage area such as the hard disk drive buffer unit 17. It is also possible to record it and read it out for use. Therefore, every time the EPG information is acquired, the EPG information is always recorded in this storage area, and the latest EPG information is prepared.

The format of the data transmitted here is
A unique format as shown in FIG. 9 may be used, or the TS packet may be sent as it is as the SI (PMT, EIT, etc.) of the TS packet. FIG. 9 is an example of reservation information or EPG information.

The disc recording / reproducing apparatus A receives the EPG information data (S32) and transmits an end status (S1).
7) (S33), the data is transferred to the work RA.
M, and display the EPG according to the data (S
34). Then, the user is prompted for a reservation process, and a reservation process for program recording is performed (S35). At this time, the reservation information is set in the optical disc recording / reproducing apparatus A.

When the reservation time comes, the optical disk recording / reproducing apparatus A issues a link-on command to the digital television B (S36), and the digital television B transmits the IEEE 1394.
When this command is received via the interface 41, the power is turned on in the case of the power save mode (S18). Further, the optical disc recording / reproducing apparatus A sends the program information to the digital television B (S37). When the digital television B receives this command (S19), it performs a command interpretation process (S20), and in response to the command, the digital tuner section. A setting is made to receive a desired program through S42 (S21). Thereafter, an end status is transmitted to the optical disc recording / reproducing device A (S22). The AV signal of the broadcast program received according to the setting is supplied from the video decoding unit 44 to the optical disc recording / reproducing apparatus A via the AV input unit 11.

Thereafter, when the status is received (S3
8) In the optical disc recording / reproducing device A, a recording process is performed (S39). Then, the optical disk recording / reproducing apparatus A starts recording, and when the recording ends at the scheduled end time, the following management data is updated from the EPG information (S40).・ Program name is PRM_TXT in PGI from EPG information
To enter.・ Other texts such as director name and actor name are IT_TXT
Enter IT_TXT size and pointer to IT_TXT_S
Set to RP.・ I which I put in IT_TXT_SRPN in PGI earlier
Enter the T_TXT number. -Set attribute information such as video resolution and audio monaural / stereo to STI. Optical disc D
It is possible to perform scheduled recording based on EPG information, which is program information, and to simultaneously record information from EPG information and the like in the management area.

As described above, in the optical disc recording / reproducing apparatus A according to the present invention, even if the main body does not have a tuner or a separating section for acquiring EPG information, the apparatus such as a digital television B having such a tuner can be used, for example. IEEE 1394
EPG information or the like, which is program information, can be obtained via a communication function such as an interface. This allows
Scheduled recording processing can be performed based on EPG information or the like as program information, and information on a program based on EPG information or the like can be simultaneously recorded in the management area.

<Operation of Second Embodiment> In the second embodiment,
When the reservation information is supplied from the digital television B to the optical disc recording / reproducing apparatus A after the reservation operation based on the EPG information or the like as the program information, and the optical disc recording / reproducing apparatus A performs the reservation recording based on the supplied reservation information. I will provide a.

In the flowchart of FIG. 8, the digital television B receives a digital broadcast (S51),
At the same time, PAT and PMT are extracted from the received signal (S52), and the latest EPG information is separated therefrom (S53). Then, the data is stored in the work RAM, and the EPG is displayed according to the data (S54).
In response to this display, the user is prompted for a program reservation operation, and reservation information is created (S55).

If the latest EPG information cannot be obtained when acquiring the EPG information, for example, the main CPU 48
It is also possible to record the EPG information recorded at the time of the previous communication in a predetermined storage area such as the work RAM unit 50 therein, and read and use the EPG information. For this reason,
Each time the EPG information is obtained, the EPG is always stored in this storage area.
Information is recorded, and the latest EPG information is prepared.

Further, the digital television B issues a link-on command to the optical disk recording / reproducing apparatus A (S5).
6) The digital television B receives this via the IEEE 1394 interface unit 23, and in the case of the power save mode, generates a power-on signal and turns on the power (S72). Further, an attribute command is issued to check whether or not the device connected to the digital television B is the optical disc recording / reproducing device A (S57). When the attribute command is received (S73), the command is interpreted (S74), The digital TV transmits the data (S75), and upon receiving the attribute data (S58), determines whether the connected device is a DVD recorder having a reservation function (S59). If the DVD recorder does not have the reservation function, a message such as "DVD recorder is not connected" is displayed (S71), and the process is terminated.

In the case of a DVD recorder, the digital television B uses the reservation information of the reserved program as the data of the reserved program.
The data is transmitted to the optical disk recording / reproducing device A via the 94 interface 41 (S60). The format of the data to be transmitted here may be a unique format as shown in FIG. 9 or the SI (PMT, EIT, etc.) of the TS packet.
You can send it as is. When this is received by the optical disk recording / reproducing apparatus A (S76), a command interpretation process is performed (S77).

When the reservation information is transmitted (S61), the optical disk recording / reproducing apparatus A receives the reservation information (S78), and upon receiving the reservation information, collates it with the reservation information in the main body (S7).
9) Check if the reservations do not overlap, and if not, set the received information as the reservation information (S80). Then, the reservation completion status is returned (S82). If the reservations overlap, this fact is transmitted to the digital television B as a reservation error status (S81).

Upon receiving the status (S62), the digital television B notifies the user of the status and determines whether or not to continue the reservation operation (S63). If it is determined that there is an error, a message such as "Reservation is overlapped" is displayed (S
64). Then, it is determined whether or not to continue the process of the reservation operation (S65), and if so, the process returns to step S54 to continue the process. If not, the process ends. If no error occurs in step S63,
It waits until a link-on command is supplied from the optical disc recording / reproducing apparatus A.

When the reservation time has come, the optical disk recording / reproducing apparatus A issues a link-on command to the digital television B (S83), and upon receiving this from the IEEE1394 interface unit 23, generates a power-on signal in response thereto. Then, when the digital television B is in the power save mode (S66), the power is turned on.

Next, the disc recording / reproducing apparatus A sends the reserved program information to the digital television B (S8).
4), the digital television B receiving this (S67)
The command is interpreted (S68), and the digital tuner unit 42 is set to receive the target program according to the interpretation (S69). The received signal received by the digital tuner 42 is converted into a video by a code unit 44 and an AV input unit 11.
Is supplied to the optical disc recording / reproducing apparatus A as an AV signal through the. After that, an end status is transmitted (S70).

When this status is received (S85),
The disc recording / reproducing apparatus A starts recording, and ends recording when the reservation end time comes (S86). And EP
The following management data is updated from the G information (S8)
7).・ Program name is PRM_TXT in PGI from EPG information
To enter.・ Other texts such as director name and actor name are IT_TXT
Enter IT_TXT size and pointer to IT_TXT_S
Set to RP. -I that I put in IT_TXT_SRPN in PGI earlier
Enter the T_TXT number. -Set attribute information such as video resolution and audio monaural / stereo to STI. By such a procedure, the digital television B can perform a reservation operation based on the EPG information, which is program information, and the optical disc recording / reproducing apparatus A, which has received the reservation information by the reservation operation, makes a reservation recording on the optical disc D. Can do
Further, information from EPG information and the like can be simultaneously recorded in the management area.

As described above, in the optical disc recording / reproducing apparatus A according to the present invention, even if the main body does not have a tuner or a separating section for acquiring EPG information, it can be used in a device such as a digital television B having these. A reservation operation can be performed based on the EPC information and the like, and the reservation information generated by the reservation operation can be supplied to the optical disc recording / reproducing apparatus A via a communication function such as an IEEE 1394 interface. Thus, the program information E
Scheduled recording processing can be performed based on PG information and the like, and information on programs based on EPG information and the like can be simultaneously recorded in the management area.

Although the present invention can be realized by those skilled in the art by the various embodiments described above, it is easy for those skilled in the art to come up with various modifications of these embodiments, It is possible to apply to various embodiments without having. Therefore, the present invention
The present invention covers a wide range not inconsistent with the disclosed principle and novel features, and is not limited to the above-described embodiment.

For example, in the above-described embodiment, a DVD recording / reproducing apparatus and a digital television having a satellite broadcast tuner have been described as examples, but the recording / reproducing apparatus is a hard disk recording / reproducing apparatus or another recording / reproducing apparatus. The digital television may be simply a tuner device for satellite broadcasting, and has the same function and effect according to the same gist of the present invention.

[0071]

As described above in detail, according to the present invention, program information and reservation information received from a broadcast receiving apparatus are received by an information recording / reproducing apparatus, so that the information can be effectively used to perform scheduled recording. The present invention provides an information recording / reproducing apparatus and a broadcast receiving apparatus capable of performing such processing as described above, or an information recording system thereof.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a broadcast receiving device and an information recording device according to an embodiment of the present invention.

FIG. 2 shows a DV of the information recording apparatus according to the embodiment of the present invention.
FIG. 4 is an explanatory diagram showing a directory structure of D.

FIG. 3 shows a VO of a DVD directory structure according to the present invention.
Explanatory drawing of BS.

FIG. 4 shows a PG having a directory structure of a DVD according to the present invention.
FIG.

FIG. 5 shows a ST of a directory structure of a DVD according to the present invention.
FIG.

FIG. 6 is a diagram illustrating a TX of a directory structure of a DVD according to the present invention.
FIG. 4 is an explanatory diagram of TDT_MG.

FIG. 7 is a flowchart illustrating processing operations of the broadcast receiving device and the information recording device according to the first embodiment of the present invention.

FIG. 8 is a flowchart illustrating processing operations of a broadcast receiving device and an information recording device according to a second embodiment of the present invention.

FIG. 9 shows reservation information and an EPG according to an embodiment of the present invention.
Explanatory drawing of information.

[Explanation of symbols]

A: Optical disk recording / reproducing device, 11: AV input unit, 12
... TV tuner section, 13 ... encoder section, 14 ... decoder section, 15 ... data processor section, 16 ... STC section, 1
7: Hard disk drive buffer unit, 18: Disk drive unit, 19: Main MPU unit, 20: Frame memory control unit, 21: Frame memory unit, 22
... D / A converter section, 23 ... IEEE 1394 interface section, 24 ... A / D converter, 25 ... Video encoding section, 26 ... Audio encoding section, 27 ... Formatter section, 28 ... Separation section, 29 ... Video encoding section, 30 ... SP decoding unit, 31 audio decoding unit, 32 video processing unit, 33 D / A converter, 34 EPG setting unit, 35 work RAM unit
36: IEEE 1394 command interpreter, 37: loader, 38: reserved recording information searcher, B: digital television,
41 IEEE 1394 interface unit, 42 digital tuner unit, 43 separation unit, 44 video decoding unit, 45 display unit, 46 audio decoding unit, 47
... Speaker, 48 ... Main MPU section, 49 ... EPG information transfer section, 50 ... Work RAM section, H ... Broadcast station, S ... Communication satellite, P ... Satellite antenna.

   ────────────────────────────────────────────────── ─── Continuation of front page    F-term (reference) 5C025 BA00 CA09 CB08 DA01 DA10                 5C052 AA01 AB02 AB09 CC01 DD04                 5C053 FA20 FA23 GB38 JA03 JA15                       JA16 KA01 KA24 KA25 KA26                       LA07 LA14

Claims (12)

[Claims] 1. An information recording device, comprising: a communication unit connected to an external broadcast receiving device for receiving program information from the broadcast receiving device; and a reservation for generating reservation information based on the program information received by the communication unit. Means for acquiring an information signal from the broadcast receiving device via the communication means in accordance with the reservation information generated by the reservation means, and recording the information in a recording medium based on the information signal. An information recording device, characterized in that: 2. The method according to claim 1, wherein the reservation unit receives and stores the latest program information from the broadcast receiving device before the latest program information is obtained from the broadcast receiving device even when the communication unit works on the broadcast receiving device. 2. The information recording apparatus according to claim 1, wherein the set program information is read from a storage area, and the reservation information is generated based on the read program information. 3. An information recording apparatus, wherein said communication means is connected to an external broadcast receiving apparatus and receives reservation information therefrom, and said communication means receives said reservation information via said communication means in response to said reservation information received by said communication means. Obtaining an information signal from the broadcast receiving device,
Recording means for performing reservation recording on a recording medium based on the information signal. 4. A determination unit for determining whether or not reservation information equivalent to the reservation information received by the communication unit is present in a storage area; and wherein the reservation information received by the determination unit from the communication unit is When it is determined that the broadcast signal does not exist in the storage area, an information signal is obtained from the broadcast receiving device via the communication unit in accordance with the reservation information received by the communication unit, and a reservation recording is performed on a recording medium based on the information signal. 4. The information recording apparatus according to claim 3, further comprising: a recording unit that performs recording. 5. The apparatus according to claim 1, further comprising: an activation unit that activates the broadcast receiving device at an arbitrary timing by supplying an activation command signal to the broadcast receiving device connected to the communication unit. 3. The information recording device according to 3. 6. The information according to claim 3, further comprising: means for creating information relating to the content of the information signal based on the reservation information received by the receiving means, and recording the information on the recording medium. Recording device. 7. A broadcast receiving apparatus, comprising: demodulation means for receiving a broadcast signal and demodulating it into an information signal; separating means for receiving the information signal from the demodulation means and separating program information from the information signal. Communication means for supplying the program information separated by the separation means to a connected information recording device. 8. A broadcast receiving apparatus, comprising: demodulation means for receiving a broadcast signal and demodulating it into an information signal; separating means for receiving the information signal from the demodulation means and separating program information from the information signal. A generating unit that generates reservation information based on the program information separated by the separating unit; and a communication unit that supplies the reservation information generated by the generating unit to a connected information recording device. A broadcast receiving apparatus characterized by the above-mentioned. 9. The broadcast receiving apparatus according to claim 8, further comprising a judging means for judging whether said information recording device connected to said communication means has a reservation function. 10. The broadcast receiving apparatus according to claim 8, wherein a start command signal is supplied to said information recording apparatus connected to said communication means to activate said information recording apparatus. 11. An information recording system, comprising: demodulation means for receiving a broadcast signal and demodulating it into an information signal;
A broadcast receiving apparatus including: a separating unit that receives the information signal from the demodulating unit and separates program information from the information signal; and a first communication unit that supplies the program information separated by the separating unit. A second communication unit connected to the first communication unit of the apparatus and receiving the program information; a reservation unit for generating reservation information based on the program information received by the second communication unit; Recording means for acquiring an information signal from the broadcast receiving apparatus via the second communication means in accordance with the generated reservation information, and recording the information on a recording medium on the basis of the information signal. An information recording system comprising: 12. An information recording system, comprising: a demodulation means for receiving a broadcast signal and demodulating it into an information signal;
A separating unit that receives the information signal from the demodulating unit and separates program information from the information signal; a generating unit that generates reservation information based on the program information separated by the separating unit; A broadcast receiving device having a first communication unit for supplying the reservation information, a second communication unit connected to the first communication unit of the broadcast receiving device, and receiving the reservation information, and a second communication unit An information recording device, comprising: a recording unit that acquires an information signal from the broadcast receiving device via the second communication unit in accordance with the received reservation information, and that performs reservation recording on a recording medium based on the information signal. An information recording system comprising: