JP2003125378A - Receiving recorder and receiving trouble recovery system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reception trouble recovery system intended to cut down the managing load and the communication cost of a trouble managing apparatus. SOLUTION: The receiving recorder 100 receives and records contents with a reception trouble. For reproducing the contents, a user interface 108 receives a recovery instruction from a user, and a trouble section locator 110 locates a trouble section to be recovered, based on the reception time of the trouble section for reproducing the contents, and transmits the trouble section as trouble information to an external trouble managing apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital broadcast receiving / recording device, and more particularly to a technique for repairing a failure due to a loss of data constituting a received and recorded broadcast program.

[0002]

2. Description of the Related Art In recent years, a random-accessible recording medium such as a hard disk is mounted, and satellite digital broadcasting is received to record program data (hereinafter referred to as "content") composed of video data, audio data and the like. Receiving and recording devices for performing the above have become popular. In addition, satellite digital broadcasting is IS
MPEG-2 specified by O / IEC13818
(Moving Picture Experts Gr
up2) Systems-compliant transport stream (TS: TransportStream)
m) The content is broadcast in a multi-packet transmission format. Since it is possible to broadcast a plurality of contents in the same frequency band at the same time, it is possible to increase the number of channels.

By the way, in satellite digital broadcasting, broadcast waves may propagate in a physical space, so that reception may not be successful depending on the state of the space. For example, there is a case where the broadcast wave from the satellite does not reach the receiving antenna because it is temporarily blocked by the influence of heavy rain, snowfall, or the like. In this case,
When the receiving / recording device demodulates the broadcast wave received by the receiving antenna, a part of the TS packet is lost, and when the content composed of a group of these TS packets is reproduced, a temporary video disturbance and audio Reception failure such as skipping occurs.

As a solution to this reception failure, a broadcast program reservation recording method that copes with the reception failure by preliminarily recording content of the same content that is rebroadcast in another time zone is disclosed in Japanese Patent Laid-Open Publication No. 2000- 268441). However, this broadcast program reservation recording method has a problem in that the broadcast station needs to broadcast the same content in a duplicated manner, and is wasteful if no reception failure occurs.

Therefore, as another solution, the receiving / recording device has a function of detecting the loss of the TS packet, and when this detection function detects the loss of the TS packet in the received content, the TS packet lost through the communication line is detected. The information is automatically transmitted to the broadcasting station as failure information, and the broadcasting station responds with a device corresponding to the failure information sent from these receiving / recording devices (hereinafter, referred to as “fault handling device”) and loses the TS. A method of retransmitting the packet to each receiving / recording device (hereinafter, referred to as "data missing portion retransmitting method") is conceivable.

[0006]

However, in the above-described method of retransmitting a data loss portion, since all TS packets in which a loss is detected are retransmitted, the communication cost is increased and the corresponding load of the failure handling apparatus is considerable. There is a problem of becoming a big one. In view of the above problems, the present invention provides a reception recording apparatus that aims to reduce the communication load when transmitting the repair load and the repair data of the failure coping apparatus, and a reception failure repair system including the reception recording apparatus. The purpose is to

[0007]

In order to solve the above problems, a receiving and recording apparatus according to the present invention includes a receiving and recording means for receiving and recording stream data composed of a plurality of data, and the receiving and recording means. Failure section detecting means for detecting a failure section which is a section in which data is missing in the stream data received by, repair instruction receiving means for receiving a repair instruction from the user, and all the failure sections detected by the failure section detecting means. Of the faulty section, based on the repair instruction received by the repair instruction receiving means,
It is characterized by further comprising: failure section specifying means for specifying a failure section to be repaired; and transmitting means for sending failure information indicating the failure section specified by the failure section specifying means to an external device.

Here, the section in which the data is missing is a section of the stream data received by the receiving / recording apparatus, and is not the entire stream data. The external device is a device that transmits repair data corresponding to the failure information transmitted by the reception recording device. A reception failure repair system according to the present invention is a reception failure repair system including a reception recording device that receives and records stream data to be broadcast, and a partial data transmission device that transmits partial data to the reception recording device. In the receiving and recording device, the receiving and recording means for receiving the stream data composed of a plurality of data and recording it on a recording medium, and the stream data received by the receiving and recording means are missing data. A faulty section detecting unit that detects a faulty section that is a section, a repairing instruction receiving unit that receives a repairing instruction from the user, and a faulty instruction receiving unit that receives all the faulty sections detected by the faulty section detecting unit Failure section specifying means for specifying a failure section to be repaired based on the repair instruction, and the failure section specifying hand Transmitting means for transmitting the fault information indicating the fault section specified by the partial data transmitting device to the partial data transmitting device; repair data receiving means for receiving the data when the partial data transmitting device transmits the data; By inserting the data received by the receiving means into the stream data in the recording medium so that the data can be used as the data in the failure section specified by the failure section specifying means,
The partial data transmission device includes a storage unit that stores stream data that is not missing, and a repair unit that repairs the stream data. Repair data transmission means for reading data from the storage means and transmitting the data to the reception recording device.

As a result, only the faulty section specified and instructed by the user out of all the faulty sections that have occurred at the time of receiving and recording the content is transmitted to the partial data transmitting apparatus as fault information. It is possible to suppress the corresponding load and the communication cost when transmitting the repair data.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. <Structure><Broadcast Transmission / Reception System Including Reception Failure Repair System> FIG. 1 is a diagram showing a schematic structure of a broadcast transmission / reception system including a reception failure repair system according to an embodiment of the present invention.

As shown in the figure, the broadcast transmitting / receiving system comprises a broadcasting station system 10, a digital broadcasting satellite 20, a user system 40, a communication system 50, and a communication line 50.
Of these, the reception failure repair system 30 is the reception recording device 10
0, display device 60, failure handling device 200, communication line 50
And is a system for repairing a failure due to a missing TS packet in the content received and recorded by the reception recording apparatus 100.

Receiving and recording device 100 and failure handling device 200
Are connected by a communication line 50. The communication line 50 is a line capable of high speed communication using the Internet. The user system 40 includes a receiving antenna 9 that receives a digitally modulated TS broadcast from the digital broadcasting satellite 20.
2 and a reception / recording device 100 that demodulates the received TS and records and reproduces a specific content in the TS, and a display device 60 that displays the reproduced content. In addition,
The user system is usually installed in each house or the like, and it is assumed that there are many user systems.
1 has the same configuration as the user system 40. Therefore,
It is assumed that there are many reception recording devices included in the user system, and the relationship between the reception recording device and the failure handling device in the reception failure repair system 30 is the relationship between the many-to-one client-server system. Can be said.

The broadcasting station system 10 comprises a broadcasting device 70 for digitally modulating a TS obtained by converting a plurality of contents to be broadcast into TS packets and controlling the broadcasting, and a transmitting antenna 91 for transmitting the digitally modulated TS to a digital broadcasting satellite 20. And a failure handling device 2 for storing broadcast contents
00 and. <Structure of Reception Recording Device> FIG. 2 is a functional block diagram of the reception recording device 100. In the figure, components that are not important for explaining the present invention are omitted.

As shown in FIG.
A so-called set top box (STB) including a memory for storing a control program and a CPU for executing the control program, and a recording medium such as a hard disk (HD: Hard Disk) included in the base. And functionally the receiving unit 10
1, content recording unit 102, content storage unit 10
3, failure section check unit 104, sequence header position information storage unit 105, failure section information storage unit 106, reproduction unit 107, user interface unit 108, clock unit 10
9, a failure section identification unit 110, a communication unit 111, and a repair information replacement unit 112.

Here, the user interface unit 108
Has a function of receiving a user instruction made through a user operation on an external front panel of the reception recording apparatus 100 or a user operation on a remote controller. The user instruction includes a channel switching instruction, a content recording instruction, a content reproduction instruction, a repair instruction, and the like. A channel switching instruction means an electronic program guide (EPG: Electron
c Program Guide) and the like, the user instructs the reception recording device 100 to acquire the content requested by the user.

The content recording instruction is an instruction for the user to cause the reception recording apparatus 100 to record the content acquired by the channel switching instruction. In the content recording, a group of TS packets forming the content is recorded as one file. In addition, the Association of Radio Industries and Businesses standard "program sequence information used for digital broadcasting" (A
RIT STD-B10 1.2 version EIT (Event Information Table)
A content code for identifying each content is generated based on the event ID and other information in e), and TS is generated.
It records in each file together with the packet group.

The content reproduction instruction is an instruction to cause the receiving and recording apparatus 100 to reproduce the recorded content designated by the user, and the recorded content is designated by the content code recorded at the time of recording the content. Used. The restoration instruction is to cause the receiving / recording apparatus 100 to restore the data around the time at which the content is reproduced when the user feels a defect in the video or audio of the content while the receiving / recording apparatus is reproducing the recorded content. It is an instruction.

The receiver 101 has a tuner and a buffer memory, controls the tuner to digitally demodulate the broadcast wave received by the receiving antenna 92, and stores the TS demodulated and generated in the buffer memory, It has a function of transmitting to the content recording unit 102 the content designated in the channel switching instruction received by the user interface unit 108.

The content recording unit 102 obtains the content designated by the channel switching instruction accepted by the user interface unit 108 from the buffer memory of the receiving unit 101, and the user interface unit 1
In accordance with the content recording instruction accepted in 08, the content storage unit 103 has a function of recording in TS packet units.

The content storage unit 103 has a large-capacity recording medium such as an HD and can store content. The faulty section check unit 104 reads the TS packet recorded in the content storage unit 103, and reads the time code of the GOP header that is marked every 0.5 seconds at the time of content reproduction and the sequence header that comes immediately before the GOP header. Sequence header time information corresponding to the position of the TS packet on the file is included, the loss of the TS packet is detected, and the section delimited by the sequence header time at which the loss of the TS packet occurs is shown. It has a function to generate fault section information. Here, the time on the content reproduction is a time starting from the content reproduction start time. The sequence header time information and the faulty section information will be described later in detail.

The fault section check unit 104 also has a function of recording the generated sequence header time information in the sequence header time information storage unit 105 and the generated fault section information in the fault section information storage unit 106. The sequence header time information storage unit 105 is a storage area such as a memory for storing the sequence header time information, and the failure section information storage unit 106 is a storage area such as a memory for storing the failure section information. .

The reproducing unit 107 has a function of reading the specified content from the content recording unit 103 and reproducing the specified content in accordance with the content reproduction instruction accompanied by the content specification accepted by the user interface unit 108. The reproduction is to decode the content data in TS packet units by the MPEG decoder, decompress the video stream data and the audio stream data, and send them as a video signal and an audio signal to the external display device 60. As a result, the user can view the content displayed on the display device 60.

The clock unit 109 has a function of clocking the time when the content is played back by the playback unit 107 with reference to the time code of the GOP header. The faulty section identifying unit 110 receives the signal of the repair instruction received by the user interface unit 108, holds the clock time of the clock unit 109 when receiving this signal, that is, the user repair instruction time, and holds the user repair instruction time. Based on the failure section information storage unit 106, the failure section corresponding to the failure section is identified as a failure section to be repaired, failure information is created based on the specified failure section, and the communication unit 111 receives the failure. It has the function of transmitting information. The fault information will be described later in detail.

The repair information replacement unit 112 stores the corresponding content stored in the content storage unit 103 based on the repair information received by the communication unit 111 and the sequence header time information stored in the sequence header time information storage unit 105. It has a function of replacing the corresponding TS packet with the TS packet for repair and repairing. The repair information will be described later in detail.

The communication unit 111 sends the fault information transmitted from the fault section specifying unit 110 to the fault handling device 200 through the communication line 5.
0, and has a function of receiving repair information from the failure handling device 200 via the communication line 50. The receiving unit 101, the content recording unit 102, the faulty section checking unit 104, the reproducing unit 107, and the faulty section identifying unit 11
0, and the function of the restoration information replacement unit 112, the control program stored in the memory of the reception recording apparatus 100 is executed by the CPU, that is, by the software,
Some or all of them are realized.

<Structure of Failure Handling Device> FIG. 3 is a functional block diagram of the failure handling device 200. In the figure, components that are not important to the present invention are omitted. The failure handling apparatus 200 shown in the figure is a so-called server computer capable of receiving and responding to a large number of command instructions coming from the outside, a CPU executing a control program, and an HD.
It has a recording medium such as. Functionally, the content acquisition unit 2
01, content recording unit 202, content storage unit 20
3, a sequence header time information generation unit 204, a sequence header time information storage unit 205, a failure response unit 206, and a communication unit 207.

Here, the content acquisition unit 201 has a function of directly acquiring, by a cable or the like, a TS in which the content broadcast by the broadcasting device 70 is packetized.
The broadcasting device 70 holds the broadcast content. The content recording unit 202 includes the content acquisition unit 20.
The TS packet group obtained in 1 is divided into files for each content and stored in the content storage unit 203. The content storage unit 203 is a large-capacity recording medium such as HD.

The sequence header time information generation unit 204 reads the content in TS packet units stored in the content storage unit 203, generates the sequence header time information of the content, and stores the generated sequence header time information in the sequence header time information. It has a function of recording in the unit 205. Sequence header time information storage unit 2
A recording medium 05 stores the generated sequence header time information.

The fault handling unit 206 generates repair information based on the fault information received by the communication unit 207. The failure handling unit 206 refers to the sequence header time information of the corresponding content from the sequence header time information storage unit 205 based on the content code included in the failure information, and determines the sequence header time information and the time of the failure section included in the failure information. The corresponding TS packet position is acquired, and subsequently, the TS packet of the corresponding section stored in the content storage unit 203 is extracted from the content storage unit 203 from the content code and the acquired TS packet position, and the extracted TS packet is included. Generate repair information.

The communication unit 207 receives the fault information sent from the reception recording apparatus 100 via the communication line 50, and
It has a function of transmitting the repair information generated by the failure handling unit 206 to the reception recording device 100 via the communication line 50. The functions of the content acquisition unit 201, the content recording unit 202, the sequence header time information generation unit 204, and the failure handling unit 206 are performed by the CPU executing the control program stored in the memory of the failure handling apparatus 200. That is, a part or all of it is realized by software. <Data><Structure Relationship of TS, TS Packet, PES, and Video Stream> FIG. 4 illustrates TS, TS packet, and packetized elementary stream (PES: Packetize).
FIG. 3 is a diagram showing a structural relationship between an ed Elementary Stream) and a video stream.

The video stream will be described. The video stream is a bit stream of data relating to video conforming to MPEG-2 Systems, and its structure has a hierarchical structure, and the sequence (S
sequence) layer, GOP (Group Of Pi)
Cture) layer or the like. In this figure, the sequence layer including GOP is shown.

The sequence layer starts with a sequence header, ends with a sequence end, and is composed of one or more GOPs. Generally, a sequence shows one video program as a whole, but the Association of Radio Industries and Businesses standard "BS digital broadcasting transmission and operation conditions" (ARIB STD-B2
0 1.1 version), in satellite digital broadcasting channel hopping, that is, the time until a program is displayed at the time of starting reception or switching channels has to be suppressed to a certain time, so at least once every 0.5 seconds the sequence header , And the screen is updated with the I picture. Therefore,
One GOP is composed of 15 frames (0.5 seconds), each sequence is composed of one GOP, and the GOP header is sent immediately after the sequence header.

The sequence header includes information indicating the size of an image, information such as the number of frames to be encoded in one second, communication speed, etc., and information for synchronizing the entire sequence. The GOP layer starts with a GOP header and is composed of one or more pictures. Since the first coded video in the GOP layer is an I picture that independently forms a coded video without using a reference screen, the GOP performs random access from MPEG data by using the I picture. Can be used as points.

The PES packet is a packet of encoded data of video and audio standardized by MPEG and other data in a variable length, and contains individual data such as video and audio. Multiple Ts with the same PID
It is divided into S packet payloads. T in the standard
The S packet is a fixed length packet of 188 bytes and is 4
It is composed of a TS packet header with a fixed byte length, an adaptation field with a variable length, and a payload.
The TS packet header contains a packet identifier (PID),
A cyclic counter (continuity index) and various flags are defined, and the PID identifies the payload content of the TS packet.

As the payload content of the TS packet,
There are video data, audio data, and others, and in FIG. 4, PID = k is assumed to include video data. The cyclic counter is specified to sequentially add a number from 0 to 15 to a plurality of consecutive TS packets having the same PID,
These show continuity. According to the standard, a TS is a program map table (PMT: PMT) for specifying TS packets including data such as video streams and audio streams that compose each content multiplexed in a TS.
Program Map Table) and the PMT
Association table (PAT) for identifying packets containing
Table information such as the "Occurrence Table" is defined, and by referring to these table information, only the TS packets forming the target content can be extracted from the TS. The TS shown in FIG. 4 represents the TS as the one content.

<GOP Time Code> FIG. 5 shows the time code structure in the GOP header. Time 301 is hour,
It is divided into units of minutes, seconds, and pictures. The value range 302 includes hours (0 to 23), minutes (0 to 59), seconds (0
˜59) and picture (0-59). One picture is 1/60 second.

<Example of Recorded Content with Missing TS Packets> FIG. 6 is a diagram showing an example of the TS of the content with missing TS packets recorded in the content storage unit 103 and the video stream therein. The TS of the content with the missing TS packet in the upper row is composed of each TS packet in which the video data, the audio data, and other data which form the content are stored.

TS packet position 303 is recorded T
It represents the rank position of the S packet in the file. And in this figure, TS packet position 13 and TS packet position 14
A TS packet is lost between and, and the data to be originally recorded is not recorded and is lost. PID3
Reference numeral 04 is a packet identifier in the TS packet header, PID = k indicates video data, PID = 1 indicates audio data, and PID = m indicates that others are stored in the payload.

The cyclic counter 305 sequentially adds cyclically to TS packets having the same PID and having a continuous relationship from 0 to 1
The number is 5. Payload 306 is divided PES
Stores packets. The video stream in the lower stage is composed of a sequence header, a GOP header, and a TS packet in which a picture is stored in the payload, and the time code is the above-mentioned GOP time code included in the GOP header. Is.

<Sequence Header Time Information> FIG. 7 shows the sequence header time information at the sequence header position 3
07 and sequence header time 308. The sequence header time information is generated by the faulty section check unit 104 and recorded in the sequence header time information storage unit 105.

The sequence header position 307 is the TS
Of the packet position 303, the TS packet position in which the sequence header is stored in the payload is shown. The sequence header time 308 is the time code of the GOP header immediately after the sequence header in the video stream of FIG. 4, and this is the sequence header time.
It is expressed in units of minutes, seconds, and pictures.

<Failure Section Information> FIG. 8 is failure section information, which is composed of a failure section number 309 and a failure section 310. The failure section information is generated by the failure section check unit 104 and recorded in the failure section information storage unit 106.

The fault section number 309 is a number given each time a section between sequence header times in which TS packets are missing in the content is generated by the fault section determination processing in the fault section checking unit 104. Obstacle section 31
0 is a section between sequence header times when there is a TS packet loss in the content due to the failure section determination processing in the failure section check unit 104, and a sequence header time indicating the beginning of the failure section and a sequence header indicating the end of the failure section. Represents a time zone.

<Fault Information> FIG. 9 shows fault information, which is composed of a fault address device address 312, a reception recording device ID, a reception recording device address 314, a content code 315, and a fault section 316. The failure information is failure information including the failure section specified based on the user repair instruction time in the failure section information shown in FIG.

The fault section information is generated by the fault section specifying unit 110. The method of identifying the faulty section will be described later. The failure handling device address 312 is the IP address of the failure handling device for transmitting the failure information to the failure handling device 200, and is stored in the internal RAM memory of the receiving recording device when the receiving recording device is sold. When the address is changed, the failure response device notifies the IP address change, and the rewriting can be changed at any time.

The reception recording device ID 313 is an ID for identifying the reception recording device that has transmitted the failure information, and is stored in the ROM memory inside the reception recording device when the reception recording device is manufactured and cannot be rewritten and changed. Receive recording device address 31
Reference numeral 4 denotes an IP address of the reception recording device for the failure handling device 200 to send the repair information to the reception recording device 100, and an arbitrary IP address or an assigned IP address depending on the connection method with the communication line of each user system. Become.

The content code 315 is a code for specifying the content and is generated based on the EPG. For example, the event ID of the content. Obstacle section 31
Reference numeral 6 represents the start time and end time of the identified faulty section.
When a plurality of faulty sections are detected by the faulty section identifying method, a plurality of faulty sections 316 are added.

<Repair Information> FIG. 10 shows the repair information, which is the reception recording device address 317, the reception recording device ID 318, the content code 319, the repair section 320, and the repair data 32.
1 and is generated by the failure handling unit 206 of the failure handling apparatus 200 based on the failure information transmitted from the reception recording apparatus 100 shown in FIG. The method of creating the restoration information will be described later.

The reception recording device address 317 is the reception recording device address 31 of the fault information which is the basis of the generation of the main repair information.
4 is an IP address for the failure handling device 200 to send the repair information to the corresponding reception recording device. The reception recording device ID 318 is a copy of the reception recording device ID 313 of the failure information that is the basis of the generation of the repair information. When the failure handling device 200 transmits the repair information to the reception recording device addressed to the corresponding IP address, This is an ID indicating that the device is a receiving / recording device that receives this repair information.

The content code 319 is a copy of the content code 315 of the failure information that is the basis of the generation of the repair information. The repair section 320 is a copy of the failure section 316 of the failure information that is the basis of the generation of the main repair information. The repair data 321 is a TS packet for repair extracted by the failure handling unit 206.

When there are a plurality of fault sections 316 in the fault information which is the basis of the generation of the restoration information, one restoration section and the restoration data corresponding thereto are added with another restoration section and restoration data. Let's go. <Operation><Operation of Broadcast Transmission / Reception System and Reception Failure Repair System> First, the operation of the broadcast transmission / reception system according to the present embodiment will be described.

The broadcasting device 70 converts a plurality of contents to be broadcast into TS packets, digitally modulates the multiplexed TS, and sends it to the transmitting antenna 91. The transmitting antenna 91 transmits the digitally modulated TS received from the broadcasting device 70 to the digital broadcasting satellite 20. The digital broadcasting satellite 20 broadcasts the digitally modulated TS received from the transmitting antenna 91.

The receiving antenna 92 is the digital broadcasting satellite 20.
The digitally-modulated TS broadcast by is received and sent to the reception recording device 100. The reception recording device 100 demodulates the digitally modulated TS received from the reception antenna 92, extracts the content designated by the user from the TS, records the content, and reproduces it. The display device 60 is the reception recording device 100.
The content is displayed by receiving the video signal and the audio signal of the content reproduced in.

Next, the operation of the reception failure repair system 30 will be described. After recording the content, the reception recording device 100 performs the failure section determination process performed by the failure section check unit 104 on all the recorded contents. When a failure section due to a TS packet loss occurs, the failure section is recorded as failure section information. The faulty section determination process will be described later.

When the content recorded by the receiving / recording apparatus 100 is reproduced and displayed on the display apparatus 60, the above-mentioned T
The video of the content is displayed unclearly due to the S packet loss. The user issues a repair instruction to the reception / recording apparatus 100 in order to eliminate the defect in the content. At this time, the receiving / recording apparatus 100 temporarily stops the reproduction of the content and performs the failure repair processing. The fault repair processing will be described later.

The receiving / recording apparatus 100, based on the time of content reproduction when the repair instruction is received from the user,
The failure section to be repaired is specified from the failure sections indicated by the failure section information. The reception recording apparatus 100 transmits the identified failure section as failure information to the failure handling apparatus 200 via the communication line 50. The failure handling device 200 receives the failure information sent via the communication line 50 and performs failure handling processing based on the failure information. The failure handling process will be described later. The failure handling apparatus 200 extracts the TS packet of the failure section of the content to be repaired from the built-in content storage unit and transmits it as repair information to the reception recording apparatus 100 via the communication line 50.

The receiving / recording apparatus 100 receives the repair information sent via the communication line 50, and replaces the TS packet group of the fault section to be repaired with the TS packet group of the repair information based on the repair information. Repair by. After the content is restored in this way, the reception recording apparatus 100 releases the playback stop state of the content and starts the playback from before the repaired faulty section.

<Failure Section Determination Process> FIG. 11 is a flowchart showing the failure section determination process performed by the failure section check unit 104 of the reception recording apparatus 100. In the faulty section determination process, when the receiving / recording apparatus 100 records the content received according to the user instruction, the faulty section checking unit 104 determines the loss of the TS packet for all the recorded contents and the loss thereof. This is a process of generating failure section information indicating a failure section that is a section that has occurred.

First, the faulty section checking unit 104 determines the time variables Pre_Timecode and Now_Timeco.
The time stored in de is reset (S101). Resetting means setting each time variable to 00: 00: 00: 00. Then, the TS packet of the content recorded in the content storage unit 103 is read to obtain the PID and the circulation counter (S102).

The contents of the divided PES packet included in the payload of the read TS packet are checked. (S103) As a result, if this TS packet is a TS packet including a sequence header and a GOP header immediately after it (S103)
104), the position of the TS packet on the file, and G
The time of the time code in the OP header is associated and recorded as sequence header time information in the sequence header time information storage unit 105 (S105).

Next, the time stored in Now_Timecode is stored in Pre_Timecode, and GOP
The time of the time code of the header is Now_Timecod
It is stored in e (S106). And Now_Timec
The difference between the time stored in the node and the time stored in the Pre_Timecode is calculated, and it is confirmed whether or not the difference is larger than the time for 1 GOP, that is, 0.5 seconds (S10).
7).

When the difference is larger than 1 GOP, at least 1 GOP worth of TS packets are missing or GOP
A TS packet including a header may be missing. In this case, from the time stored in Pre_Timecode, N
The section up to the time stored in ow_Timecode is set as the failure section (S108). If this TS packet is not the last TS packet (S111), the next TS packet is read (S102), and if it is the last TS packet, the faulty section determination ends.

If in step S107, Now_
The time and Pre_Tim stored in Timecode
If the time difference stored in ecode is 1 GOP, step 108 is skipped. And if this T
If the S packet is not the last TS packet (S11
1), the next TS packet is read (S102), and if it is the last TS packet, the faulty section determination ends.

In step S104, the PES packet does not include the sequence header and GOP header,
When the cyclic counter of the read TS packet is not continuous with the immediately preceding cyclic counter of the same PID (S10
9), it is determined that the TS packet is missing, and Now_Timec
The section between the time stored in the node and the GOP header time code when the TS packet including the GOP header is read next time is set as the failure section (S110).

If this TS packet is not the last TS packet (S111), the next TS packet is read (S102), and if it is the last TS packet, the fault section determination ends. In step S109, when the circulation counter is consecutive with the immediately preceding circulation counter of the same PID, step S110 is skipped, and if this TS packet is not the last TS packet (S111), the next TS packet is read. (S10
2) is performed, and if it is the last TS packet, the failure section determination ends.

As a result, when a TS packet is lost, the section delimited by the sequence header time information including the position of the missing TS packet is set as a failure section, and its start time and end time are stored in the failure section information storage unit 106. To do. Note that the sequence header and GOP header have different T
When stored in the S packet, the faulty section check unit 10
In 4, the TS packet in which the sequence header is stored first is read, so that the sequence header time information is generated with the TS packet position and the time code of the GOP header read thereafter.

<Specific Example of Fault Section Determination> A concrete flow of fault section determination when each TS packet illustrated in FIG. 6 is a target of fault section determination will be described. <TS packet position = 1> The faulty section check unit 104 reads the TS packet at the TS packet position = 1 from the data content storage unit 103 (S102). as a result,
PID = k and cyclic counter = 0.

Split P in TS packet payload
The ES packet is checked (S103). as a result,
Since the sequence header and the GOP header are included (S104), the TS packet position is stored as the sequence header position in the sequence header time information, and the time code time of the GOP header is stored as the sequence header time (S105).

From TS packet position = 1, sequence header position = 1, GOP header time code time = 0
Sequence header time = 0 from 0: 00: 0: 00
It is stored as 00: 00: 00: 00. Then, Pre_T
Now_Timecode = 00 in the timecode:
00:00:00 is stored, and time code time of GOP header = 00: 00: 00: 00 is Now_Timec.
It is stored in the node (S106). Pre_Timec
Time stored in the node = 00: 00: 00: 00: 00 and N
Time stored in ow_Timecode = 00: 00
The difference of 0:00:00 is 00: 00: 00: 00: 00, which is smaller than 1 GOP = 00: 00: 00: 030 (S107), and step S108 is skipped.

Since it is not the last TS packet (S11
1) and returns to step S102. <TS packet position = 2> The faulty section check unit 104 reads the TS packet at the TS packet position = 2 from the data content storage unit 103 (S102). as a result,
PID = k and cyclic counter = 1 (S102).

Split P in TS packet payload
The ES packet is checked (S103). as a result,
Sequence header and GOP header are not included (S
104), since the picture is included, it is compared whether the cyclic counter is continuous with the TS packet immediately before PID = k (S109). When PID = k, the cycle counter of the previous TS packet = 0 and the cycle counter of this packet = 1 are determined to be continuous (S110).

Since it is not the last TS packet (S11
2) and returns to step S102. After that, it is assumed that TS packets are read one after another and the same processing is performed, and the processing is completed up to the TS packet position = 20. <TS packet position = 21> Subsequently, the faulty section checking unit 104 reads the TS packet at the TS packet position = 21 from the data content storage unit 103 (S102).
As a result, PID = k and cyclic counter = 7 from the TS packet header.

Split P in TS packet payload
The ES packet is checked (S103). As a result P
The ES packet contents are a sequence header and a GOP header (S104). Therefore, the TS packet position is recorded as the sequence header position and the time code time of the GOP header is recorded as the sequence header time in the sequence header time information (S105). TS packet position =
21, the sequence header position = 21, the time code time of the GOP header = 00: 00: 05: 00, and the sequence header time = 00: 00: 05: 00 is stored.

Next, Pre_Timecode is set to N.
ow_Timecode = 00: 00: 00: 30 is stored, and the time code time of the GOP header is 00:00:
05:00 is stored in Now_Timecode (S106). Time stored in Pre_Timecode = 00: 00: 00: 30 and Now_Timeco
The difference of time = 00: 00: 05: 00 stored in de is 00: 00: 04: 30, and 1 GOP minute = 0
Greater than 00: 00: 30: 30. (S107) Therefore, it is determined that the TS packet is missing. Pre_Time
Time stored in code = 00: 00: 0: 30 and time stored in Now_Timecode = 0:
00:05:00 is set as the faulty section (S108).

Since it is not the last TS packet (S11
1) and returns to step S102. According to the above specific example, when the failure section check unit 104 determines that the TS packet is missing, failure section information is generated and recorded in the failure section information storage unit 106. This result is the faulty section information having the content illustrated in FIG. <Fault repair processing> Focusing on FIG. 12, FIG. 2, FIG. 9, and FIG.
0 and FIG. 13 will be supplementarily used to describe the injury repair processing in the reception recording apparatus 100.

FIG. 12 is a failure repair processing flow in the receiving / recording apparatus 100, and FIG. 13 is a time series of the sequence header time, the user repair instruction time, and the failure section search range before and after 10 seconds based on the user repair instruction time. In FIG. 8, the failure section 1 and the failure section 2 shown in the figure are the failure sections indicated by the failure section numbers 1 and 2 in FIG. In this failure repair processing, when the content recorded by the receiving / recording apparatus 100 is reproduced and displayed on the display device 60, the video of the content is unclearly displayed due to the above-mentioned TS packet loss, and the user can see this failure. When requesting the receiving recording device 100 to restore, the user receives the receiving recording device 1
00, a failure section to be repaired is specified based on the time of the content reproduction when the repair instruction is received, and the failure handling apparatus 20 uses this failure section as failure information.
This is a process of transmitting the repair information to the 0, receiving the repair information sent thereafter, and repairing the failure based on the received repair information.

First, the user interface unit 10 issues a content reproduction instruction accompanied by content specification from the user.
In step 8, the reproduction unit 107 receives this and reads the content from the content storage unit 103 and reproduces it. The reproduced content is displayed on the display device 60 (S301). While the user is viewing the content displayed on the display device 60, the image of the content is displayed indistinctly due to the disturbance of the image, and the user receives the recording device 100.
Give repair instructions to. The user interface unit 108 accepts the user's repair instruction, the time of the received content reproduction is measured by the time measuring unit 109, and this is held as the user repair instruction time in the faulty section identifying unit 110 (S).
302).

Subsequently, the faulty section specifying unit 110 reads the faulty section information from the faulty section information storage unit 106 and refers to it (S304), and compares it with the search range of 10 seconds before and after the user repair instruction time. As a result, when the search range 10 seconds before and after the user repair instruction time and the failure section overlap, the overlapping failure sections are all identified as the failure section specified by the user (S).
305).

For example, in FIG. 13, the user repair instruction time is 00: 00: 07: 00. Then, the faulty section identifying unit 110 reads the faulty section information from the faulty section information storage unit 106 and refers to it (S304), and the search range (00: 00: 00: 00 to 10 seconds before and after the user repair instruction time).
(00: 00: 17: 00) and the referenced faulty section information are compared. As a result, the faulty section 1 (00:00) is included in the search range.
(0:00:30 to 00: 00: 55: 00) overlap,
As a result, the failure section specified by the user is identified as the failure section 1 (S305).

Then, the fault section identifying section 110 generates the fault information of FIG. 9 which is composed of the identified fault section, fault address device address, reception recording device ID, reception recording device address, and content code (S306). The failure section identifying unit 110 sends the generated failure information to the communication unit 111, and the communication unit 111 that receives the failure information receives the failure information from the failure handling device 20.
Failure information is transmitted to 0 through the communication line 50 (S30
7).

Then, the communication section 111 receives the repair information of FIG. 10 sent from the failure handling apparatus 200 (S3).
08). Subsequently, the repair information received by the communication unit 111 is sent to the repair information replacement unit 112, and the repair information replacement unit 112 that receives the repair information refers to the sequence header time information from the sequence header time information storage unit 105 to obtain the repair information. Time of the included restoration section and TS of sequence header time information
The position on the file of the TS packet to be repaired is confirmed from the packet position, and the TS packet of the corresponding fault section is replaced with the TS packet included in the repair information (S30).
9).

As a method of replacement, it is conceivable to newly create and save a content file of a TS packet included in the repair information and TS packets connected before and after the TS packet. In step S302, for example, when the repair instruction time is (00: 00: 20: 00), the search range is 10 seconds before and after the repair instruction time, so the search range is (00: 00: 10: 00). ~ 00: 00: 3
0:00), and even if the failure section information is referred to in step S304, there is no overlapping failure section (S30).
5) Therefore, the reception recording device 100 displays the result of "failure section cannot be detected" on the display device 60 (S31).
0).

Then, the receiving / recording apparatus 100 displays a display screen for selecting whether or not to continue the repair on the display device 60, and allows the user to select whether or not to continue the repair (S).
311). When the user chooses to continue the repair, the user sets the time in the failure range in units of 0.5 seconds which is the sequence header time unit, and the reception recording apparatus 100 accepts this (S312).

This assumes a case where the receiving / recording apparatus 100 cannot detect a failure, for example, the TS header is fine but the payload is broken. This failure repair processing makes it possible to identify and repair the failure section designated by the user. <Fault Handling Process> FIG. 14 is a flowchart showing a fault handling process in the fault handling unit 206 of the fault handling apparatus 200.

In this failure handling processing, when failure information is sent from the receiving / recording apparatus to the failure handling apparatus 200, the failure handling apparatus 200 responds to this and is a normal TS packet in the failure section of the relevant content. A process of extracting repair data from the internal content storage unit 203 and transmitting repair information including the extracted repair data, reception recording device address, reception recording device ID, content code, and repair section to the corresponding reception recording device. Is.

First, the communication section 207 receives the failure information sent from the receiving / recording device via the communication line 50 (S201) and sends it to the failure handling section 206.
The failure response unit 20 sends the failure information sent from the communication unit 207.
6 receives and retrieves the corresponding content from the content code of the failure information (S202). Then, the fault response unit 2
06 refers to the sequence header time information of the relevant content from the sequence header time information storage unit 205, confirms the TS packet position corresponding to the start time and end time of the fault section 316 of the fault information, and checks the TS packet of the fault section. From the content storage unit 203 (S20
3).

The failure handling unit 206 uses the extracted TS packet as repair data to generate repair information by combining the receiving recording device address of the failure information, the receiving recording device ID, the content code, and the repair section, and sends it to the corresponding receiving recording device. Yes (S204). By this failure handling processing, the failure handling unit 206 of the failure handling apparatus 200 sends the repair information including the normal TS packet in the failure section of the relevant content in response to the failure information sent from the reception recording apparatus. <Supplement> The reception failure repair system according to the present invention has been described above based on the embodiments, but it goes without saying that the present invention is not limited to these embodiments. That is, (1) In the embodiment, the user issues a repair instruction during reproduction of the content recorded by the reception / recording apparatus, and the reception / recording apparatus identifies the faulty section based on the time of content reproduction when the reception instruction is received. However, at the time when the user gives a content reproduction instruction to the receiving / recording apparatus, the receiving / recording apparatus displays the failure section information to which the leveled information is added on the display device 60 and is displayed. A method of repairing a failure by designating a failure section number of failure information by a user (hereinafter, referred to as a “failure section presentation and repair method”) is also possible.

FIG. 15 is a diagram of the display device 60 showing the failure section information in the failure section presentation and repair method on the screen. The screen 501 is the screen displayed on the display device 60, and the content name, content code, and faulty section information are displayed. The content name and the content code are displayed in correspondence with the content designation when the user gives a reproduction instruction accompanied by the content designation to the receiving / recording apparatus 100. The failure section information is sent from the failure section information storage unit 106 in correspondence with the designation of the content.

The faulty section number 502 corresponds to the faulty section number 309 in FIG. 8, and the faulty section in which the TS packet loss is detected by the faulty section checking unit 104 is sequentially numbered. The faulty section number 502 is an icon button as shown in FIG. 15. For example, when the user designates and clicks the faulty section number 1 with a cursor or the like, the color of the icon button changes, and the repair designated by the user is performed. It is specified as a faulty section to be performed.

When the user further double-clicks, a part of the content in this section is reproduced, and the extent of the failure can be confirmed, and after confirmation, the user can select whether or not to instruct repair as the failed section to be repaired. The obstacle section 503 is displayed corresponding to the obstacle section 310 in FIG. The failure level 504 is information added to the failure section information in FIG. 8, and is set to a predetermined standard according to the size of time of the failure section, and is an auxiliary for the user to specify the failure section to be repaired. Play an important role. The predetermined standard is, for example, a standard set such that an obstacle section within 3 seconds is A level, an obstacle section within 5 seconds is B level, and an obstacle section for 5 seconds or more is C level.

Naturally, different users have different feelings of troubles with respect to the obstacles, and thus the predetermined standard can be freely set by the user, whereby the user does not have to view the obstacle sections one by one. By confirming the fault level according to the level setting set by the user, the fault section to be repaired can be specified. The scroll bar 505 has a function of vertically scrolling and displaying a faulty section that cannot be displayed on one screen.

By the method of repairing the failure section presentation when the user gives a playback instruction, the user causes the receiving / recording apparatus 100 to repair the failure due to the TS packet loss before playing the content. Therefore, the user experiences the failure due to the failure during viewing. You can enjoy the content without worrying about it. (2) In the embodiment, the receiving / recording apparatus 100 generates a failure section in units of a section including a TS packet position including a sequence header and a GOP header and a GOP time code time as a unit, and the failure handling apparatus 200 receives this failure. Although the TS packet corresponding to the section was transmitted to the reception recording device 100 as the repair data, the failure handling device 200
Manages the content in a semantic unit, for example, a scene change or a unit separated by CM (hereinafter referred to as “scene”), and a scene including a failure section of failure information transmitted by the reception recording apparatus 100. Of the TS packet can be transmitted to the receiving / recording apparatus 100 as repair data.

As a result, when a plurality of small faulty sections exist in a scattered manner and cannot be covered by the search range by the repair instruction, it is not necessary to specify each faulty section, and these plural faulty sections are not specified. Can be collectively repaired without omission. (3) In the embodiment, the failure information is generated immediately after the failure section is specified and transmitted to the failure handling device 200. However, when specifying a plurality of failure sections to be repaired one by one, the user is Even if a repair instruction is issued each time, the content can be viewed to the end, and a plurality of faulty sections to be repaired for which the user has issued a repair instruction during viewing after the end of the content can be transmitted together.

As a result, the content can be viewed without temporarily interrupting the reproduction of the content due to the failure repair of the receiving and recording apparatus 100 described in the embodiment, and when the content is viewed again, the repaired content is viewed. be able to. (4) In the embodiment, the failure of the content that the user gives a repair instruction is repaired. However, if the broadcasting station person determines that the failure should be repaired in the broadcasting system 10 without the user giving a repair instruction, the content is The repair information including the repair data of the corresponding faulty section is transmitted to each user system via the communication line 50 or the digital broadcasting satellite 20, and each receiving / recording device receiving this transmits the corresponding content from the content code included in the repair information. Check if you have recorded, and if the relevant content was recorded,
It can be repaired by the procedure described in the embodiment.

With this, it is possible to repair the failure of the content which is judged to be to be repaired in the broadcasting system 10, without the need for the user to give a repair instruction. (5) In the embodiment, the search range based on the user repair instruction time is 10 seconds before and after, but it is not limited to this,
Seconds may be 15 seconds before and after, and it may be set in any time range. (6) In the failure repair processing shown in the embodiment, the reception recording apparatus may include means for notifying the user of the completion of the failure repair processing via the display device 60 or the like after the failure repair processing. The receiving / recording device displays the faulty section in which the fault has been repaired, the amount of data for repairing, etc. after the fault repairing is completed by the display device 6
A means for presenting via 0 or the like may be provided. (7) In the embodiment, the sequence header time information is generated by the time code of the GOP header and the time of content reproduction is detected, but the generation of the sequence header time information does not depend on the time code of the GOP header. But it's okay, for example, the PES to which the sequence header belongs
PTS (Presentati) in the packet header
on Time Stamp), DTS (Decodi)
ng Time Stamp) may be used to generate the sequence header time information. In this case, the PT of the header of the PES packet to which the sequence header stored first in the TS packet position of the recorded content belongs
S and DTS are used as reference values. (8) A receiving recording device having a function of receiving a broadcast and accumulating it on a recording medium in the processing procedure of the receiving recording device in the reception failure repair system shown in the embodiment (the procedure shown in FIGS. 11 and 12). A control program (computer program) to be executed can be recorded in a recording medium or distributed and distributed via various communication paths or the like. Such recording media include IC cards, optical disks, flexible disks, ROMs and the like. The distributed and distributed computer program is used by being installed in a receiving / recording device having a function of receiving a broadcast and accumulating in a recording medium and having a program execution function,
The reception recording device can execute the computer program to perform the operation as shown in the above-described embodiment.

[0096]

As is apparent from the above description, the receiving and recording apparatus according to the present invention receives and records the stream data composed of a plurality of data, and the receiving and recording means. Failure section detecting means for detecting a failure section which is a section where data is missing in the stream data, repair instruction receiving means for receiving a repair instruction from the user, and all of the failure sections detected by the failure section detecting means. Among them, a failure section specifying unit for specifying a failure section to be repaired based on the repair instruction received by the repair instruction receiving unit, and failure information indicating the failure section specified by the failure section specifying unit are external devices. And a transmitting means for transmitting to the.

As a result, only the faulty section specified by the user out of all the faulty sections that have occurred at the time of receiving and recording the content is transmitted to the external apparatus as the fault information. It is possible to reduce the load of the failure handling device shown in the form and the communication cost for transmitting the repair data. In addition, the failure section identification means selects, from all the failure sections detected by the failure section detection means, the failure section to be repaired based on the time when the repair instruction is received by the repair instruction receiving means. It may be specified.

As a result, it becomes possible to meet the user's request for repair at the time when the user is viewing the content and feels a problem, and only the failure section that the user has noticed is selected from a plurality of failure sections. Since it is specified, the load of the failure handling device that copes with the failure and the communication cost when transmitting the repair data are suppressed.

Further, the stream data is video data, and the receiving / recording device further comprises a reproducing means for reproducing a video based on the recorded stream data,
The faulty section detecting means stores faulty section information indicating the start and end of each of the detected faulty sections at the time of reproduction of the stream data, and the repair instruction receiving means reproduces the video by the reproducing means. The repair section receives the repair instruction, and the failure section identifying unit determines the failure section within a predetermined time range including the time corresponding to the time when the repair instruction is received at the time of reproduction of the stream data. A faulty section indicated by the information and overlapping from the beginning to the end may be specified as the faulty section to be repaired.

As a result, it is possible to compensate for the time lag from when the user is viewing the content and feels a defect until the repair instruction is issued to the receiving / recording device.
When the user issues a repair instruction and can specify the faulty section that occurs after the reproduction time received by the receiving / recording device, and when multiple small faulty sections are scattered. By including these within a predetermined time including the time of acceptance, it is possible to collectively specify the faulty section.

Further, the transmitting means may perform the transmission of the failure information indicating a plurality of specified failure sections only when the failure section is specified a plurality of times by the failure section specifying means. . As a result, it is possible to alleviate the temporary stoppage of the reproduction of the content due to the repair of each failure, and to reduce the number of times the failure recording apparatus transmits failure information. It leads to the reduction of the corresponding load.

Further, the receiving / recording means records the received stream data on a recording medium, and the receiving / recording device further writes the data having no omission in the failure section indicated by the failure information transmitted by the transmitting means. Repair data receiving means received from an external device and data received by the repair data receiving means are converted into stream data in the recording medium so that the data can be used as data in the failure section specified by the failure section specifying means. It may be provided with a repairing unit that plugs in and repairs the stream data.

As a result, only the specified failure section can be repaired, and it is not necessary to re-receive the entire content, so that the external device corresponding to the failure, that is, the failure handling apparatus shown in the embodiment transmits the repair data. It is possible to reduce the communication cost when doing. Further, the receiving / recording means receives stream data which is a sequence of broadcast transport stream packets, divides the received stream data into groups of a plurality of transport stream packets, and can access each group. As described above, the failure section detection unit detects a section in group units including a loss of a transport stream packet as the failure section, and the repaired data reception unit selects from a plurality of transport stream packets. Receiving data of a group from the repairing device, the repairing means receiving the repaired data receiving means of transport stream packets in group units corresponding to the faulty section identified by the faulty section identifying means. By replacing Serial repair may be performed a.

Here, the group is data starting from the sequence header to the next sequence header,
This is data corresponding to 0.5 seconds in reproduction. As a result, the receiving / recording apparatus can identify the location where the data is missing, and can repair the identified faulty section in units of 0.5 seconds or the like. Therefore, the failure handling device that responds to the failure can transmit the amount of repair data in small units, and can reduce the communication cost.

Further, the stream data is video data, and the faulty section detecting means also detects a missing amount of data in the faulty section when the faulty section is detected, and the reception recording device is further recorded. Reproducing means for reproducing video based on stream data, and all of the faulty sections detected by the faulty section detecting means, with information indicating directly or indirectly the amount of data loss in the faulty section, to the user. The faulty section presenting means for presenting, and the faulty part reproduction control means for causing the reproducing means to reproduce the images corresponding to the front and back of each faulty section presented by the faulty section presenting means, the repair instruction receiving means, A repair instruction specifying any one of the faulty sections presented by the section presenting means is received from the user, and the faulty section identifying means sets the repair finger. In the fault section specified by the user, it may be specified as a fault section to be repaired.

As a result, the user can collectively specify the failure sections to be repaired on the basis of all the presented failure sections and the information indicating the degree of these failures, so that the number of transmissions of the reception recording apparatus can be reduced. As a result, it becomes possible to reduce the load on the failure handling device. Further, the faulty section presenting means may present the faulty section before the stream data is reproduced by the reproducing means.

As a result, since the user restores the failure due to the data loss to the receiving / recording apparatus before the reproduction of the content, the user can view the content without experiencing any troubles due to the failure during viewing and the number of transmissions of the receiving / recording apparatus. Since it is possible to reduce the load, it is possible to reduce the load on the fault handling device. A reception failure repair system according to the present invention is a reception failure repair system including a reception recording device that receives and records stream data to be broadcast, and a partial data transmission device that transmits partial data to the reception recording device. In the receiving and recording device, the receiving and recording means for receiving the stream data composed of a plurality of data and recording it on a recording medium, and the stream data received by the receiving and recording means are missing data. A faulty section detecting unit that detects a faulty section that is a section, a repairing instruction receiving unit that receives a repairing instruction from the user, and a faulty instruction receiving unit that receives all the faulty sections detected by the faulty section detecting unit Based on the repair instructions
Failure section specifying means for specifying a failure section to be repaired, transmission means for sending failure information indicating the failure section specified by the failure section specifying means to the partial data transmitting apparatus, and data from the partial data transmitting apparatus Repair data receiving means for receiving the data when is transmitted,
Repairing means for inserting the data received by the repaired data receiving means into the stream data in the recording medium so as to be used as data in the faulty section specified by the faulty section specifying means, and for repairing the stream data The partial data transmission device includes storage means for storing stream data without omissions, and data without omissions in the fault section indicated by the fault information transmitted by the transmission means from the storage means. And a repair data transmitting means for transmitting to the receiving and recording device.

As a result, only the faulty section specified by the user out of all the faulty sections that have occurred at the time of receiving and recording the content is transmitted as the fault information. Therefore, the partial data transmitting apparatus corresponding thereto, that is, the embodiment will be described. Further, it is possible to suppress the load of the failure handling device and the communication cost when transmitting the repair data, and perform the repair. Further, the reception failure repair program according to the present invention is a program for causing a broadcast receiving / recording apparatus including a CPU to perform failure information transmission processing for transmitting failure information relating to a reception failure to an external device. The transmission process includes a reception recording step of receiving and recording stream data composed of a plurality of data, and a failure detecting a failure section in which the data is missing in the stream data received by the reception recording step. A section detecting step, a repair instruction receiving step of receiving a repair instruction from the user, and a repair instruction based on the repair instruction received by the repair instruction receiving step among all the fault sections detected by the fault section detecting step. A faulty segment specifying step for identifying a faulty segment to be performed, Characterized in that it comprises a transmission step of transmitting Tsu failure information indicating the identified fault section by up to an external device.

As a result, only the fault section specified by the user out of all the fault sections generated at the time of receiving and recording the content is transmitted as the fault information, and the corresponding load of the external apparatus corresponding to this, that is, the fault handling apparatus. , And it is possible to suppress the communication cost when transmitting the repair data.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a broadcast transmission / reception system including a reception failure repair system 30.

FIG. 2 is a block diagram showing a configuration of a reception recording device 100.

FIG. 3 is a block diagram showing a configuration of a fault handling device 200.

FIG. 4 is a diagram showing a structural relationship between a TS, a TS packet, a PES, and a video stream.

FIG. 5 is a time code structure diagram in a GOP header.

[Fig. 6] Fig. 6 is a diagram showing one content file with a missing TS packet and a set of TS packets including video data among them.

FIG. 7 is sequence header time information according to the embodiment of the present invention.

FIG. 8 is fault section information according to the embodiment of the present invention.

FIG. 9 is fault information according to the embodiment of the present invention.

FIG. 10 is repair information according to the embodiment of the present invention.

11 is a flowchart showing a faulty section determination process of the faulty section checking unit 104 in the reception recording apparatus 100. FIG.

12 is a flowchart of a fault repairing process in the reception recording device 100. FIG.

FIG. 13 is a diagram showing a sequence header time, a user repair instruction time, and a fault section search range of 10 seconds before and after the user repair instruction time in time series.

FIG. 14 is a fault handling unit 20 of the fault handling device 200.
It is a flowchart which shows the failure handling process of No. 6.

FIG. 15 is a diagram of a screen of a display device presenting fault section information.

[Explanation of symbols]

10 broadcasting station system 20 digital broadcasting satellites 30 Reception failure repair system 40, 41 User system 50 communication lines 60 display device 70 broadcasting equipment 91 transmitting antenna 92 reception antenna 100 Reception recording device 101 Receiver 102 content recording unit 103 content storage 104 Faulty section check section 105 Sequence header time information storage unit 106 Fault section information storage unit 107 Playback section 108 User interface section 109 timekeeping section 110 Faulty section identification unit 111 Communication unit 112 Repair Information Replacement Section 200 Failure response device 201 Content acquisition unit 202 Content recording unit 203 content storage 205 Sequence header time information storage unit 206 Troubleshooting 207 Communication unit

Claims (10)

[Claims] 1. A receiving / recording unit for receiving and recording stream data composed of a plurality of data, and a fault section which is a section in which data is missing in the stream data received by the receiving / recording unit. The fault section detecting unit and the repair instruction receiving unit that receives the repair instruction from the user, and among all the fault sections detected by the fault section detecting unit, the repair is performed based on the repair instruction received by the repair instruction receiving unit. A reception / recording apparatus comprising: a failure section specifying unit that specifies a failure section that should be used; and a transmission unit that transmits failure information indicating the failure section specified by the failure section specifying unit to an external device. 2. The fault section identifying means should be repaired based on the time at which the repair instruction is accepted by the repair instruction accepting means among all the fault sections detected by the fault section detecting means. The reception recording apparatus according to claim 1, wherein the faulty section is specified. 3. The stream data is video data, the receiving and recording device further comprises a reproducing means for reproducing video based on the recorded stream data, and the faulty zone detecting means detects all faulty zones detected. The failure period information indicating the start and end of the stream data at the time of reproduction of the stream data is stored, and the repair instruction receiving unit receives the repair instruction when the video is being reproduced by the reproducing unit, The faulty section specifying means is a faulty section in which the start time and the end time indicated by the faulty section information overlap with each other in a predetermined time range including the time corresponding to the time when the repair instruction is accepted, at the time of reproducing the stream data. 3. The reception recording apparatus according to claim 2, wherein is specified as the faulty section to be repaired. 4. The transmitting means transmits the failure information indicating a plurality of identified failure sections after the failure section is identified by the failure section identifying means a plurality of times. Item 1. The receiving and recording device according to item 1. 5. The receiving / recording means records the received stream data on a recording medium, and the receiving / recording device further includes data without omission in a failure section indicated by failure information transmitted by the transmitting means. Repair data receiving means for receiving from an external device, and data received by the repair data receiving means into stream data in the recording medium so that the data can be used as data in the failure section specified by the failure section specifying means. The reception recording apparatus according to claim 1, further comprising: a restoration unit that is inserted to restore the stream data. 6. The receiving / recording means receives stream data that is a sequence of broadcast transport stream packets, divides the received stream data into groups each including a plurality of transport stream packets, and groups each group. To a recording medium such that the faulty section detecting unit detects a section in a group unit including a loss of a transport stream packet as the faulty section, and the repaired data receiving unit is configured to detect a plurality of transports. Data of a group of stream packets is received from the external device, and the repairing unit receives, by the repaired data receiving unit, a transport stream packet of a group unit corresponding to the faulty section identified by the faulty section identifying unit. Replaced with the data The reception recording apparatus according to claim 5, wherein the restoration is performed by the following method. 7. The stream data is video data, the faulty section detecting means also detects a missing amount of data in the faulty section at the time of detecting the faulty section, and the reception recording apparatus further records the data. Playback means for playing back video based on stream data, and each of all the failure sections detected by the failure section detection means, with information indicating directly or indirectly the amount of data loss in the failure section, to the user The failure section presenting means for presenting, and the failure part reproduction control means for causing the reproducing means to reproduce the images corresponding to before and after each failure section presented by the failure section presenting means, wherein the repair instruction receiving means is the failure The user receives a repair instruction designating any one of the faulty sections presented by the section presenting means, and the faulty section identifying means sets the repair finger. Receiving and recording apparatus according to claim 1, wherein the fault section specified by the user, and identifies the faulty section to be repaired in. 8. The reception recording apparatus according to claim 7, wherein the faulty section presenting means presents the faulty section before the stream data is reproduced by the reproducing means. 9. A reception failure repair system comprising a reception recording device for receiving and recording broadcast stream data, and a partial data transmission device for transmitting partial data to the reception recording device, wherein the reception recording The apparatus receives a reception recording unit that receives stream data composed of a plurality of data and records the stream data on a recording medium, and detects a failure section that is a section in which the data is missing in the stream data received by the reception recording unit. Repair section receiving means for receiving a repair instruction from the user, and repair processing based on the repair instruction received by the repair instruction receiving means among all the failure sections detected by the failure section detecting means. Failure section specifying means for specifying a failure section to be performed, and a failure section specified by the failure section specifying means Transmitting means for transmitting the failure information to the partial data transmitting device, repair data receiving means for receiving the data when the partial data transmitting device transmits the data, and data received by the repair data receiving means Is inserted into the stream data in the recording medium so that it can be used as data in the faulty section identified by the faulty section identifying unit, and the stream data is restored. Storage means for storing stream data without loss, and repair data transmission for reading from the storage means the data without loss for the fault section indicated by the fault information transmitted by the transmission means and transmitting it to the reception recording device A reception failure repair system comprising: 10. A broadcast receiving / recording device comprising a CPU,
A program for performing a failure information transmission process for transmitting failure information related to a reception failure to an external device, wherein the failure information transmission process is a reception record for receiving and recording stream data composed of a plurality of data. A step, a failure section detection step of detecting a failure section which is a section where data is missing in the stream data received by the reception recording step, a repair instruction reception step of receiving a repair instruction from a user, and the failure section detection Of all the faulty sections detected by the step, based on the repair instruction received by the repair instruction receiving step, a faulty section identifying step of identifying the faulty section to be repaired, and by the faulty section identifying step. Transmission information for transmitting fault information indicating the faulty section to the external device. Program, characterized in that it comprises and-up.