JP2001352522A - Recording and reproducing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording and reproducing system where a television receiver can display information of recording contents of a recording medium and even icons or the like requiring many information quantities. SOLUTION: A TS decoder 44 separates video information, audio information and program information of a recorded program from a transport stream(TS) outputted from a digital broadcast tuner 42 in the case of recording. A program information extract section 46 extracts only program information of a recorded program among program information sets. A recording medium records the video information and the program information. An SRAM 72 records the program information of the program to be recorded together with tape position information of the recorded program. Then the program information and the tape position information are read from the SRAM 72 and an icon addition section 50 adds icons based on the information above and a display monitor 52 uses the information above and the icons to display information of contents recorded in the recording medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing system including a television receiver with a built-in digital broadcast receiving device (digital tuner) and a digital recording / reproducing device.

[0002]

2. Description of the Related Art In recent years, viewers frequently record on recording media such as video tapes. Further, in order to search for a recorded program, a recording / reproducing system that knows where on a video tape the recorded program is recorded is used. 2. Description of the Related Art A conventional recording / reproducing system includes a digital recording / reproducing apparatus which stores all information of recording contents of a recording medium to be displayed on a TV receiver in a memory including icons having a large amount of information such as icons. Was displayed from the memory.

[0003]

In the conventional recording / reproducing system, since all of the information including icons having a large amount of information is stored in the memory, the digital recording / reproducing apparatus requires a memory having a large storage capacity. There was a problem.

The present invention is intended to solve such a problem. Even if the storage capacity of a memory in a digital storage / reproduction device is reduced, not only the information recorded on a recording medium but also an icon having a large amount of information can be displayed on a television. An object of the present invention is to provide a recording / reproducing system that can display an image on a receiver.

[0005]

According to a first aspect of the present invention, there is provided a recording / reproducing system in which a television receiver and a digital recording / reproducing apparatus are connected by a digital interface. The television receiver outputs a transport stream including video information and audio information of a program to be recorded and program information including a program identifier of the program to be recorded, and a video stream by decoding the transport stream. A decoding unit for separating information and audio information from program information including a program identifier; and extracting only specific program information, which is program information of a program to be recorded, from the separated program information based on the program identifier of the program to be recorded. A program information extracting unit for
A digital recording / reproducing apparatus that includes an information adding unit and a display monitor and records video information and audio information on a recording medium,
A memory means for writing the specific program information is provided, and the information adding unit adds information based on the specific program information read from the memory means, and the display monitor displays the added information together with the specific program information. It is characterized by doing.

According to a second aspect of the present invention, there is provided the recording / reproducing system according to the first aspect, wherein the television receiver includes a command receiving unit for receiving a command, and the digital recording / reproducing apparatus includes: Record a video information and audio information on a recording medium, including a recording and playback unit that reproduces the video information and audio information from the recording medium, including a search control unit,
The command receiving unit receives a command for selecting any information displayed on the display monitor, and the search control unit controls the recording and reproducing unit to search and reproduce the selected information based on the command. It is characterized by doing.

A third aspect of the present invention is a recording / reproducing system in which a television receiver and a digital recording / reproducing device are connected by a digital interface, wherein the television receiver has video information of a program to be recorded. And a digital broadcast receiving apparatus for outputting a transport stream including program information including a program identifier of a program to be recorded, and video information and audio information by decoding the transport stream, and program information including a program identifier A program information extracting unit that extracts only specific program information that is program information of a program to be recorded from the separated program information based on a program identifier of a program to be recorded, and an information adding unit. The digital recording / reproducing apparatus includes a display monitor and the specific program information on the recording medium together with the video information and the audio information. A recording / reproducing section for recording and reproducing the information, an information adding section adds information based on the specific program information read from the recording medium, and a display monitor displays the added information together with the specific program information. It is characterized by doing.

According to a fourth aspect of the present invention, there is provided the recording / reproducing system according to the third aspect, wherein the television receiver includes a command receiving section for receiving a command, and the digital recording / reproducing apparatus comprises: A search control unit is included, the command receiving unit receives a command for selecting any information displayed on the display monitor, and the search control unit searches for the information selected by the recording / reproducing unit based on the command. It is characterized in that it is controlled so as to be reproduced.

A recording and reproducing system according to a fifth aspect is the recording and reproducing system according to any one of the first to fourth aspects, wherein the digital interface is IEEE.
E1394.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an embodiment of a recording / reproducing system of the present invention. The recording / reproducing system 10 of FIG.
, A digital VTR 30, an antenna 40, an IEEE 1 connecting the television receiver 20 and the digital VTR 30
394 (80). The television receiver 20 receives the digital broadcast and outputs a transport stream including video information and audio information of a program to be recorded and program information including an event ID of the program to be recorded. A transport stream decoder 44 that decodes a stream to separate video information and audio information from program information including an event ID; and a program that is program information of a program to be recorded based on the program information separated based on the event ID. A program information extracting unit 46 for extracting only information, a 1394 interface unit 48, an icon adding unit 50 for adding an icon based on the program information, a display monitor 52, and a remote control command receiving unit 54 for receiving a command from a remote control And

The digital VTR 30 has a 1394 interface unit 60 and a signal processing unit 6 for adding signals to video information and audio information and converting the information into information for recording.
2, a recording / reproducing unit 64 for recording and reproducing on and from a recording medium, a search control unit 66 for controlling the recording / reproducing unit to perform a search based on the search information, a search information generating unit 68 for generating search information, SRAM 72 and SR
SRA for controlling writing and reading to AM
M control unit 70.

First, the structure of the transport stream will be described. FIG. 8A shows a configuration of a transport stream (TS) 150 received by the antenna 40. The TS 150 includes a plurality of TS packets (1) 160
, TS packet (2) 170,..., TS packet (n) 180. Each TS packet is a group of information for transmitting information, and includes video information, audio information,
As will be described later, program information is included as information other than video information and audio information. The MPEG2-TS packet is 188 bytes. There are a plurality of TSs 150 received by the antenna 40,
Each is identified by D220 (FIG. 9).

FIG. 8B shows a TS packet (n) 180
Will be described in detail. The TS packet (n) 180 includes a PID (packet ID) 182, which is an identifier for identifying each TS packet, and a payload 184 as a data portion in which data is stored. The PID is, for example, program specification information PSI (Program Specific In
formation) PAT (Program Association Tab)
le) is appended with 0, and the packet with the program number X is appended with XX. The packet of the video information of the program number X can be identified as PID = XA, and the packet of the audio information can be identified as the data of the same program number, such as PID = XY. .

FIG. 8C shows the packetized elementary stream PES stored in the payload 184.
(Packetized Elementary Stream) is shown. PE
S is a PES header 1 that defines the attributes and the like of the PES.
84-2 and a PES data section 184-4. PE
The S data section 184-4 mainly stores video information and audio information. However, instead of these, the PES data section 184-4 may include a PSI PAT described later, and the PSI program correspondence table PMT (Program Ma
pTable), a PSI network information table NIT (Network Information Table), a PSI conditional access table CAT (Conditional Access Table), or an SI Event Information Table EIT (Even
t Information Table).

Subsequently, referring to FIG. 9, PES data portion 1
A case where 84-4 (FIG. 8) is the PSI program guide PAT200 will be described. The PAT 200 transmits, for each program number, a P which transmits information of a packet constituting the program.
Indicates the PID of the MT. In addition, as described above, PAT200
Is assigned a fixed value, for example, 0.

Referring to FIG. 9A, PAT 200 is
It includes a table identifier (table ID) 210, a transport stream identifier (TSID) 220, and program identification information 230. The table ID 210 contains PAT
, For example, 0 is stored. Therefore, if the table ID is 0, the table is determined to be PAT. The TSID 220 is an identifier for identifying the current TS. Thereby, each of a plurality of TSs can be identified. Program identification information 2
Reference numeral 30 denotes information indicating the PID of each program.

More specifically, with reference to FIG. 9B, the program specifying information 230 includes first program information 232,
.., Including the n-th program information 234. Each program information includes a program number 232-1 for identifying each channel,
234-1 and a program map packet identifier of the program number (program map PID: PID of PMT)
Or network identifier (network PID) 23
2-2, 234-2. The program map PID refers to the PMT of a specific program number and determines which PID
It can be determined whether to search for the packet marked with. The network PIDs 232-2 and 234-2 are PIDs of a network information table NIT (Network Information Table) when the program number is a specific value, for example, 0.
Is shown. NIT is physical information about a transmission path, for example, in the case of transmission using a satellite, the orbit of the satellite,
It is a table in which the polarization, the frequency for each transponder (stream), and the like are defined. Using this table, a certain TS150
Another TS can be received from (FIG. 8).

Referring to FIG. 10, PES data section 184-4 (FIG. 8) stores a PSI program correspondence table PMT300.
Is described. The PMT 300 indicates, for each program number, the PID of a packet to which a stream of video, audio, additional data, and the like that constitute the program is transmitted. As described above, the PID of the PMT 300 is PAT20
0 (FIG. 9) program map PID 232-2, 23
4-2.

Referring to FIG. 10A, PMT 300
Includes a table identifier (table ID) 310, a program number 320, and program configuration stream specifying information 330. In the table ID 310, a table type indicating a PMT, for example, 2 is stored. Therefore, when the table ID is 2, the table is determined to be PMT. The program number 320 is a number assigned to each program. The program configuration stream specifying information 330 is information for specifying streams such as video, audio, and additional data that constitute each program.

More specifically, with reference to FIG. 10B, the program configuration stream specifying information 330 includes first program configuration information 332,..., And n-th program configuration information 334. Each of them is a stream type 332-1, 334-1 for identifying video information, audio information, etc. of an individual program.
And the PID 332 of the packet in which the information is stored.
2, 334-2. For example, stream type 33
When 2-1 is 0x02, it indicates that the video information is MPEG2 video information, and the stream type 332-1
Is 0x04, it indicates that the audio information is MPEG2 audio (both in hexadecimal notation). By using this PMT, the PID of video, audio, and additional data of a specific program number can be searched from the TS 150 (FIG. 8).

Here, the PSI further includes a conditional access table CAT (Conditional Access Tabl).
e) (not shown). This indicates the PID of a packet that transmits decryption information for descrambling in pay broadcasting. For example, 1 is assigned to the PID of the CAT.

Next, a case where the PES data section 184-4 (FIG. 8) is the event information table EIT will be described with reference to FIG. The EIT is a table that defines an event identifier (event ID) as an identifier of each program, a scheduled broadcast time (broadcast start time and end time) for each program, title information, and the like. The EIT is repeatedly and continuously included in the TS 150 (FIG. 8) and transmitted. A fixed value is assigned to the PID in advance.

Referring to FIG. 11A, EIT includes table ID 410, service ID 420, and program information 4
30. The table ID 410 indicates the type of the table. For example, when 0x4E to 0x6F (hexadecimal notation), the table is determined to be EIT. The service ID 420 is an ID used to identify this service from other services in the TS 150 (FIG. 8).
It is. The service ID is equal to the program number 320 (FIG. 10) of the corresponding PMT 300.

As shown in FIG. 11B, the program information 43
0 includes first event unique information 432,..., Nth event unique information 434. The number of event-specific information is the number of programs in one channel. The first event-specific information 432 includes an event ID 432-1 for identifying each broadcast program, a start time 432-2, a duration 432-3, and a program title and genre code of each program. And the stored descriptor 432-4. The same applies to the n-th event specific information. The start time 432-2 is represented by Japan Standard Time (JST) and modified Julian date (MJD). The duration 432-3 indicates the duration of the program in hours, minutes, and seconds. For example, 1 hour 45 minutes 30 seconds is “0x0145
30 "(hexadecimal notation).

Next, the recording operation of the recording / reproducing system 10 of FIG. 1 will be described. The digital broadcast tuner 42
MPEG2 of digital broadcast received from antenna 40
From the TS (FIG. 2 (a)), the user selects a program to be recorded based on the channel number, and converts the TS (FIG. 2 (b)) including video information and audio information of the program to be recorded into a TS.
Transmit to the decoder 44. The TS in FIG. 2A includes video information and audio information (A) from three broadcast stations A, B, and C.
₁ , B ₁ , C ₁ , A ₂ , B ₂ ) and program information (SI). 2B, the video information and the audio information from the broadcast station A are selected and shown. This program information (SI) includes program information of broadcast stations A, B, and C. The TS decoder 44 decodes the TS (FIG. 2B) from the digital broadcast tuner 42 and separates the video information and the audio information of the program to be recorded from the TS.
(FIG. 2 (c)) is transmitted to the 1394 interface unit 48, and only the program information (SI) including the event ID of the program to be recorded is separated from the TS (FIG. 2 (b)).
(D)) to the program information extraction unit 46.

The program information extracting section 46 extracts only the program information of the program to be recorded from the program information (SI) based on the event ID, and transmits the extracted program information to the 1394 interface section 48 (hereinafter, the program information of the program to be recorded is This is called specific program information.) The extracted specific program information is information including an ID of the program information, a broadcast station ID, a broadcast station name, an event ID, a program title, a genre code, a broadcast start time, and an end time of a program to be recorded. The 1394 interface unit 48 transmits video information and audio information transmitted from the TS decoder 44 by isochronous (synchronous) communication, and transmits specific program information transmitted from the program information extraction unit 46 by asynchronous (asynchronous) communication.
To the digital recording / reproducing apparatus via At this time,
The 1394 interface unit 48 adds a header to each of the source packets including the video information, the audio information, and the program information, and transmits one or more packets according to the size of the data.

The 1394 interface unit 60 rearranges video information and audio information inserted into one or a plurality of packets and specific program information in a correct order based on the added header. Further, the 1394 interface unit 60 sends the video information and the audio information transmitted from the television receiver 20 to the signal processing unit 62, and sends the specific program information to the SR
Each is transmitted to the AM control unit 70. Signal processing unit 62
Converts video information and audio information into a recording signal by adding information for recording the information to a recording medium. Recording / reproducing unit 64
Records a recording signal on a recording medium such as a video tape.
At this time, the tape ID of the video tape recorded in the memory of the recording / reproducing unit 64 is also recorded on the video tape. The tape ID is different for each video tape in order to distinguish the video tape. The video tape has a large number of gap areas where nothing is recorded, such as a vertical blanking interval between horizontal synchronization signals, and the tape ID is recorded in this gap area of the video tape. Is done. When a video tape is inserted into the digital VTR 30 or when the power of the digital VTR 30 is turned on, the recording / reproducing unit 64 reproduces the video tape for several seconds to acquire the tape ID of the video tape. At this time, the tape ID is recorded in a memory built in the recording / reproducing unit 64 and also in a memory built in the SRAM control unit 70. Of course, if the video tape is an unused video tape, a tape ID that has not been used is recorded on the unused video tape.

Next, the creation of the program information list of the recording / reproducing system 10 of FIG. 1 will be described. Shortly after the recording on the videotape has started, the search information creation unit 6
8 transmits the tape ID of the recording tape and the search information to the SRAM control unit 70. The search information is information including information necessary for the search control unit 66 to search for the recording start position of the tape, such as tape position information indicating the position of the tape where recording has started. The SRAM control unit 70 writes the tape ID and the search information into the SRAM 72 together with the specific program information transmitted from the television receiver 20. The program information list includes specific program information, which is program information of a program to be recorded transmitted from the television receiver 20, a tape ID, and search information.

FIG. 3 is a diagram showing an example of a program information list created in the digital recording / reproducing apparatus. The program information list is information including, for each recorded program, tape position information, cassette ID, and program information of the recorded program, and the program information list is stored in the SRAM 72. Here, icons and the like having a large amount of information are not stored.

Next, the display of the program information of the recording / reproducing system 10 of FIG. 1 will be described. When the user sends a program information list acquisition request command using the remote control,
In the television receiver 20, a program information list acquisition request command is received by the remote control command receiving unit 54, and the IEEE 1394 (80) is transmitted by asynchronous communication.
To the digital VTR 30 via the. Digital V
In the TR 30, the SRAM control unit 70
2, the program information list is read out, and the digital VTR 30
Based on the tape ID of the video tape inserted in the PC, a program information list including program information related to the tape ID, search information, and the like is transmitted by asynchronous communication using IEEE.
The data is transmitted to the television receiver 20 via 1394 (80).

In the television receiver 20, a digital VT
Based on the program information list transmitted from R30, icon adding section 50 adds an icon to display monitor 52.
Send to The display monitor 52 displays a recorded program information list in which icons and the like are added to the transmitted program information list. This display using icons and the like is called a GUI display.

Here, the case where the icon adding section 50 adds an icon based on the program information list will be described by taking a case where the icon is based on a genre code as an example. FIG.
FIG. 5 is a data arrangement diagram including a genre code of a program.
The program information includes a genre code, and the length of the genre code is, for example, 2 bytes. First one
In the byte area A, an identification code indicating a genre code is inserted, and in the subsequent 1-byte area B, a code determined according to the genre of each program is inserted. The first identification code may be anything as long as it does not match another type of data, and may be 1 byte or more. In the area B representing program contents, for example, 0x01 represents a news program, 0x02 represents a song program, and 0x03.
Is determined according to a genre or broadcast content, such as representing a sports program. The icon adding unit 50 stores an icon corresponding to the genre code, and when the genre code is input, outputs the icon according to the genre code. Note that the icon adding unit 50 may not only add icons according to genre codes, but also add icons according to other data.

Next, the recorded program information list displayed on the display monitor will be described. FIG. 4 is a diagram showing an example of a recorded program information list displayed on the television receiver. A news program shows a news icon, a song program shows a microphone icon, and a sports program shows a recorded program information list to which a basketball icon is added. In FIG. 4, the digital VT
A part of the information recorded in the SRAM 72 of the R30 with an icon added thereto is displayed on the display monitor 52, but this is merely to make the figure easier to see, and the displayed information is recorded and recorded. The information may be all or part of the information.

Next, reproduction of a program by the recording / reproduction system 10 of FIG. 1 will be described. In the television receiver 20,
The user selects a desired program from the recorded program information list displayed on the display monitor 52 using a remote controller or the like. A reproduction control command for reproducing the program selected by the user is received by the command receiving unit 54 and transmitted to the digital recording device 30 via the IEEE1394 (80) by asynchronous communication. This playback control command is a command including search information such as the tape position of the selected program.

In the digital recording device 30, the search control unit 66 determines the tape position of the program selected by the recording / reproducing unit 64 in the video tape based on the tape position information according to the reproduction control command transmitted from the television receiver 20. The search and playback are performed, and the playback is stopped after the playback is completed. The video information and audio information of the reproduced program are transmitted to the television receiver 20 via IEEE 1394 (80) by isochronous communication. In the television receiver 20, the display monitor 52 displays the selected program according to the video information and the audio information transmitted from the digital recording device 30.

As described above, according to the digital recording / reproducing system 10 of this embodiment, there is no need to store icons or the like having a large amount of information in the digital VTR 30, and a large amount of information can be transferred from the digital VTR 30 to the television receiver 2.
The information about the contents of the video tape recording can be displayed on the television receiver in a GUI without the need to transmit the information to the “0”. Since the digital interface IEEE 1394 (80) created based on the standard of all manufacturers is used, the connection terminals are interchangeable even if the manufacturers are different.

Next, asynchronous communication and isochronous communication performed via IEEE 1394 (80) will be described. FIG. 5 is an explanatory diagram illustrating the form of a packet transmitted via IEEE 1394, which is an example of a digital interface. In the isochronous communication, video information and audio information are transmitted by an isochronous packet 110, and in the asynchronous communication, an asynchronous packet 120 is transmitted by an asynchronous packet 120.
Reservation information, control commands, and the like are transmitted. One cycle is from the cycle start packet 100 to the cycle start packet 100, and the interval between each cycle start packet 100 is basically 125 μs. Of the 125 μs per cycle, 100 μs is used for isochronous communication and the rest is used for asynchronous communication. The isochronous packet 110 is always transmitted after the cycle start packet 100, and the asynchronous packet 12 is transmitted.
0 is transmitted between the isochronous packet 110 and the next cycle start packet 100. As described above, it is possible to transmit all of the video signal, the audio signal, and the control signal using only one IEEE 1394, and it is necessary to use separate interfaces as in the case of analog transmission. Absent.

FIG. 6 is a block diagram showing the configuration of another embodiment of the recording / reproducing system 10 of the present invention. FIG.
1 is the same as FIG. 1 except that a DVD recording / reproducing device is used as a digital recording / reproducing device, and that a search information creating unit, an SRAM, and an SRAM control unit are not used. About the television receiver 20, since it is the same as the above-mentioned thing, the description is abbreviate | omitted. The recording / reproducing system 10 of FIG. 6 includes a television receiver 20, a DVD recording / reproducing device 90, an antenna 40, a television receiver 20, and a DV.
IEEE 1394 (8
0). The DVD recording / reproducing device 90
An interface unit 60, a signal processing unit 62 for adding a signal to convert the signal into a recording signal, a recording / reproducing unit 64 for recording and reproducing a DVD, and searching and reproducing a program to be reproduced based on search information. Recording and reproducing unit 64
And a search control unit 66 for controlling the

The recording operation of the recording / reproducing system 10 shown in FIG. 6 will be described. In the DVD recording / reproducing device 90, 1394
The interface unit 60 transmits the video information and the audio information transmitted from the television receiver 20 to the signal processing unit 62. The signal processing unit 62 converts the recording information into a recording signal by adding information for recording to the video information and the audio information, and the recording and reproducing unit 64 records the recording signal on the DVD. At this time, specific program information, which is program information of a program to be recorded, and disc position information are also recorded on the DVD. The disc position information is information including an address where a program is recorded.

The display of the program information of the digital recording / reproducing system 10 shown in FIG. 6 will be described. When a program information acquisition command is transmitted from the television receiver 20, the recording / reproducing unit 64 in the DVD recording / reproducing device 90 reads out specific program information and search information. The specific program information and the search information are transmitted by the asynchronous communication using IEEE 1394.
It is transmitted to the television receiver 20 via (80). The television receiver 20 displays the recorded program information list in which an icon is added to the program information list including the specific program information and the search information, as described above, on the display monitor 52.

The reproduction of a program by the digital recording / reproducing system 10 shown in FIG. 6 will be described. When a reproduction control command including search information such as disc position information for reproducing a program selected by the user is transmitted from the television receiver 20, the search control unit 6 in the DVD recording device 90.
6 is based on the disc position information of the selected program,
The recording / reproducing device 64 searches for and reproduces the recorded program, and controls so as to stop. The video information and audio information of the reproduced program can be transmitted via the isochronous communication via IE.
It is transmitted to the television receiver 20 via EE1394 (80). By transmitting the video information and the audio information, the display monitor 52 of the television receiver 20 displays the selected program. In addition, instead of DVD, CD-RO
A CD-ROM recording / reproducing device may be used instead of the M / DVD recording / reproducing device.

As described above, the recording / reproducing system 1 shown in FIG.
0, the recorded program information list recorded on the recording medium is displayed on the display monitor 52 of the television receiver 20 in the same manner as the recording / reproducing system 10 of FIG. 1 without using the SRAM control unit 70 and the SRAM 72. Can be
Further, the program selected by the user can be reproduced.

[0043]

According to the present invention, there is no need to store a large amount of information in a digital recording / reproducing apparatus, and it is not necessary to transmit a large amount of information from the digital recording / reproducing apparatus to a television receiver. This has the effect that the information about the contents of the item can be displayed on the television receiver in a GUI.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a recording / reproducing system of the present invention.

FIG. 2 is an explanatory diagram showing a state of data of a transport stream.

FIG. 3 is a diagram showing an example of a program information list created in the digital recording / playback apparatus.

FIG. 4 is a diagram showing an example of a recorded program information list displayed on a television receiver.

FIG. 5 is an explanatory diagram illustrating a form of a packet transmitted via a digital interface.

FIG. 6 is a block diagram showing a configuration of another embodiment of the recording / reproducing system of the present invention.

FIG. 7 is a data layout diagram including a genre code of a program.

FIG. 8 is a diagram illustrating a configuration of a transport stream.

FIG. 9 is a diagram showing a configuration of a PAT.

FIG. 10 is a diagram showing a configuration of a PMT.

FIG. 11 is a diagram showing a configuration of an EIT.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Recording / reproducing system 20 ... TV receiver 30 ... Digital VTR 40 ... Antenna 42 ... Digital broadcast tuner 44 ... TS decoder 46 ... Program information extraction part 48, 60 ... 1394 interface part 50 ... Icon addition part 52 ... Display monitor 54 ... Remote control command receiving unit 62 Signal processing unit 64 Recording / reproducing unit 66 Search control unit 68 Search information creation unit 70 SRAM control unit 72 SRAM 80 IEEE 1394 100 Cycle start packet 110 Isochronous packet 120 Asynchronous packet

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/445 H04N 5/93 E 5/92 5/92 H (72) Inventor Hiroshi Egusa Kadoma, Osaka 1006 Oaza Kadoma, Matsushita Electric Industrial Co., Ltd. LA04 LA06 LA07 5D044 AB05 AB07 BC01 CC03 DE49 EF03 GK11 HL04 HL11 5D077 AA08 CB04 DC01 DC12 HA07 HC02 HC05

Claims (5)

[Claims] 1. A recording / reproducing system in which a television receiver and a digital recording / reproducing device are connected by a digital interface, wherein the television receiver transmits video information and audio information of a program to be recorded and a program identifier of the program to be recorded. A digital broadcast receiving apparatus that outputs a transport stream including program information including the program information; and a decoding unit that decodes the transport stream to separate the video information and the audio information from the program information including the program identifier. A program information extracting unit that extracts only specific program information that is program information of a program to be recorded from the separated program information based on a program identifier of the program to be recorded; an information adding unit; and a display monitor. A digital recording / reproducing apparatus for recording the video information and the audio information on a recording medium, A memory unit in which specific program information is written; the information adding unit adds information based on the specific program information read from the memory unit; and the display monitor adds the specific program information together with the specific program information. A recording / reproducing system displaying displayed information. 2. The recording / reproducing system according to claim 1, wherein the television receiver includes a command receiving unit for receiving a command, and the digital recording / reproducing apparatus records the video information and the audio information on a recording medium. And
A recording / reproducing unit for reproducing video information and audio information from the recording medium; and a search control unit, wherein the command receiving unit receives a command for selecting any information displayed on a display monitor, and performs search control. A recording / reproducing system for controlling the recording / reproducing unit to search and reproduce the selected information based on the command. 3. A recording / reproducing system in which a television receiver and a digital recording / reproducing device are connected by a digital interface, wherein the television receiver transmits video information and audio information of a program to be recorded and a program identifier of the program to be recorded. A digital broadcast receiving apparatus that outputs a transport stream including program information including the program information; and a decoding unit that decodes the transport stream to separate the video information and the audio information from the program information including the program identifier. A program information extracting unit that extracts only specific program information that is program information of a program to be recorded from the separated program information based on a program identifier of the program to be recorded; an information adding unit; and a display monitor. The digital recording / reproducing apparatus comprises: A recording / reproducing unit that records and reproduces constant program information, wherein the information adding unit adds information based on the specific program information read from a recording medium, and the display monitor is provided together with the specific program information. And a recording / reproducing system for displaying the added information. 4. The recording / reproducing system according to claim 3, wherein the television receiver includes a command receiving unit that receives a command, the digital recording / reproducing device includes a search control unit, and the command receiving unit includes: Receiving a command to select any information displayed on a display monitor, the search control unit controls the recording and reproducing unit to search and reproduce the selected information based on the command. Recording / playback system characterized by the above-mentioned. 5. The recording / reproducing system according to claim 1, wherein the digital interface is IEEE1394.