CN101238726A - Data recording device, data reproduction device, program, and recording medium - Google Patents

Abstract

A data recording device includes: a reception state acquisition processing unit (21) for creating a reception state value indicating good/bad of the reception state of the broadcast content; a recording data creation processing unit (22) for creating recording data from the broadcast content and the reception state value; and a recording control processing unit (20) for comparing a change of the reception state to a threshold value and controlling whether to pass recording data to a recording data creation processing unit (22). A data reproduction device includes: a format analysis processing unit for analyzing a format of recorded data read from a recording medium and acquiring the reception state value and the broadcast content; a reproduction control processing unit for controlling reproduction of reception data in accordance with the reception state value; a decoding unit for decoding the content according to reproduction control; and an output unit for outputting the decoded content. Thus, it is possible to provide a data recording device capable of reducing a memory amount required for recording a content and a data reproduction device capable of reducing unpleasant feeling given to a user upon reproduction of a content.

Description

Data recording equipment, data reproducing device, program and recording medium

Technical field

The present invention relates to the data recording equipment of the broadcasted content that a kind of record received and the data reproducing device of the broadcasted content that write down reset.

Background technology

In recent years, no matter just constantly popularize at portable broadcasting receiver indoor or outdoor even that when walking about, also can receive earthwave radio broadcasting, earthwave television broadcasting or satellite television broadcasting.In these portable broadcasting receivers, some has the broadcast program that will receive (content: content) be recorded in the recording medium of hard disk or semiconductor memory etc. and the function of resetting.

In general, portable receiver is different with the fixed receiver that antenna is fixed, because the electric wave environment of broadcasting wave changes constantly when mobile, so when accepting state worsens, can produce the damaged of a part of received content, causes the result that can't reset.

Figure 12 is the accepting state of expression content and the figure of the relation between received content damaged.In the figure, the longitudinal axis of figure is represented accepting state, and the big more then accepting state of the value of accepting state is just good more, in addition, and the elapsed time the when transverse axis of figure is represented received content.In reception period 1, because accepting state is good, so receiver, video is good shown in video example 1 like that also.In reception period 2, accepting state worsens, and receiver, video also worsens shown in video example 2 like that.In reception period 3, accepting state becomes when good once more, and receiver, video also just reverts to good video quality like that once more shown in video example 3.When accepting state degenerates, will take place to sneak into data such as mistake in the data that receive, perhaps the mistake of damaged grade appears in Yi Bufen data.

When record includes the reception data of above-mentioned mistake in recording medium, under the situation of part that can not detect and correct mistakes, owing to write down in the recording medium and contained wrong content, so, the user can only audiovisual because of containing the content of wrong inferior quality, perhaps need carry out wrong content not occurring and carrying out operations such as fast forward playback for searching.Thus, reset when comprising vicious content, will cause occurring the comfortableness of playback time and the problem that convenience descends.

In order to solve such problem, disclose a kind of technical scheme that extent of error is write down with content and come the control content playback at playback time according to the extent of error that has write down in the prior art, wherein, this extent of error represents how many wrong degree are the content that has received include.

For example, patent documentation 1 has disclosed a kind of DAB (Digital Audio Broadcasting) audio recording replay device.This device detects because the convolutional coding rate of received electric field strength, the voice data that received, by the error message of error correcting unit to the caused mark error messages such as adjusted rate of mistake etc., when in voice data, having when big than the possibility of serious mistake, in the frame of the voice data that this error message is recorded in semiconductor memory simultaneously and is write down, when being recorded in the voice data in the semiconductor memory when resetting, according to the error message that is recorded, carry out the audio-frequency information of output is implemented the adjustment of the audio playback information of noise elimination etc.

This DAB audio recording replay device is characterised in that and comprises: the error message checkout gear, this error message and DAB are received audio data recording read the device of this error message when being recorded in voice data in the memory and the device of adjustment playback audio signal when error message is read out in the device of memory, resetting.

This DAB audio recording device is handled with the good and bad corresponding noise elimination of accepting state by carrying out, and can suppress the noise that is produced when the abominable content of playback accepting state.

But, in the device that patent documentation 1 is put down in writing, because the error message checkout gear is in the state that error message is recorded to memory when detecting mistake always, so, when the time that bad accepting state continued is longer, it is huge that the data volume of the error message of being write down will become, thereby consume more memory capacity.For example, in the MPEG2 audio frame, when sampling frequency is 44KHz (44,000 samples/sec), because 1 frame is 1,000 sample, so, will write down 44 frames within 1 second.The size of data of supposing the error message of being appended in 1 frame was 4 bytes (byte), will increase the capacity of about 640KB so at 1 hour.

And, among the content that device write down that patent documentation 1 discloses, the content of the detected mistake of error message checkout gear includes the different content of extent of error, promptly, not only include when playback of content and the video that disturbs or the extent of error of audio frequency to occur, can not playback of video or the extent of error of audio frequency but also include fully.Such content record in memory, will be caused the waste of storage space.

Patent documentation 1: Japan's patent application Publication Laid-Open 2000-221996 number, open day: on August 11st, 2000

Summary of the invention

The present invention develops in view of the above problems, its purpose is: the memory capacity of the necessity when reducing in recording medium recorder state value, and further utilize above-mentioned accepting state value to select the content that is write down, the data recording equipment of the required memory capacity of a kind of record that can reduce content is provided thus; And by utilizing above-mentioned accepting state value to comprising the control of resetting of vicious content, thus, provide a kind of and can alleviate the data reproducing device that brings user's unplessantness displeasure when playback of content, wherein, above-mentioned accepting state value representation is comprised in the extent of error in the content.

That is, the technology and the difference between the technology of the present invention that are disclosed of patent documentation 1 is as described below.In the prior art that patent documentation 1 is disclosed, when recording musical data in semiconductor memory, data during less than predetermined electric field intensity are carried out record with music data with received electric field strength according to the indication of control part, that is to say, receive data and always in statu quo are recorded.In contrast, in the present invention, be lower than predetermined threshold value judging the accepting state value, when accepting state worsens, will not send broadcasted content and/or the accepting state value of having accepted, for example to the record data generating unit, when accepting state is abominable, not recorder data.

(obtaining the data recording equipment of accepting state value)

In order to solve above-mentioned problem, the broadcasted content that data recording equipment record of the present invention has received, data recording equipment of the present invention comprises: the accepting state obtaining section, obtain the accepting state of above-mentioned broadcasted content and generate the accepting state value of representing above-mentioned accepting state quality; The record data generating unit is associated above-mentioned broadcasted content that has received and above-mentioned accepting state value, generates the record data that are made of above-mentioned broadcasted content that is associated and accepting state value; And recording control part, more above-mentioned accepting state value and predetermined threshold value, and carry out whether transmitting the control of above-mentioned broadcasted content that receives and above-mentioned accepting state value to above-mentioned record data generating unit according to this comparative result.

In said structure, the accepting state obtaining section is known the accepting state of broadcasted content when receiving, and generates the accepting state value of expression accepting state quality.Recording control part is being controlled in order to write down in recording medium when the record data generating unit sends the record data that generated, be higher than under the good situation of predetermined threshold value, accepting state judging the accepting state value, send broadcasted content and the accepting state value that has received to the record data generating unit.But, be lower than under predetermined threshold value, the accepting state condition of severe judging the accepting state value, then do not send broadcasted content and/or the accepting state value that has received to the record data generating unit.When the record data generating unit is transfused in the accepting state value of the broadcasted content that received and generation at least one, generate record data according to any one of this broadcasted content and accepting state data.The record data that data recording section will generate are recorded in the recording medium.

According to said structure, accepting state at the broadcasted content that receives worsens, the accepting state value is lower than under the situation of predetermined threshold value, and recording control part control is only when the record data generating apparatus sends the accepting state value, owing to do not have record owing to the deterioration of accepting state causes the broadcasted content of deterioration, so, can reduce the capacity of the recording medium that when the record of broadcasted content, consumed.In addition, accepting state at the broadcasted content that receives worsens, the accepting state value is lower than under the situation of predetermined threshold value, and recording control part control is only when the record data generating apparatus sends broadcasted content, owing to do not have record owing to the deterioration of accepting state causes the accepting state value of deterioration, so, can reduce the capacity of the recording medium that when the record of broadcasted content, consumed.

(obtaining the data recording equipment of accepting state value)

Data recording equipment of the present invention is characterised in that, above-mentioned recording control part, when controlling the transmission to above-mentioned record data generating unit at the above-mentioned record data that generate for record in recording medium, more current accepting state value and accepting state value before, only when variation has taken place above-mentioned accepting state value, just transmit above-mentioned accepting state value to above-mentioned record data generating unit.

In this structure, when recording control part is controlled the transmission of record data generating unit at the record data that generate for record in recording medium, more current accepting state value and accepting state value before.Recording control part is higher than under the situation of above-mentioned predetermined threshold value in the accepting state value, more current accepting state value and accepting state value before, its result when the accepting state value does not change, controls the feasible broadcasted content that has only received to the transmission of record data generating unit.When the accepting state value changes, control feasible broadcasted content and the accepting state value that has received that send to the record data generating unit.

In addition, do not surpass under the situation of above-mentioned predetermined threshold value in the accepting state value, more current accepting state value and accepting state value before, its result, when the accepting state value does not change, control feasible broadcasted content and the accepting state value that has not received to the transmission of record data generating unit.When the accepting state value changes, control feasible only to record data generating unit transmission accepting state value.

According to said apparatus, owing to be not the accepting state value of all generations of record in recording medium, but only under the situation that the accepting state value changes with the accepting state value record in recording medium, so, can reduce the capacity of the recording medium that record consumed of accepting state value.

(example of accepting state value, with electric field strength etc. as the accepting state value)

Data recording equipment of the present invention is characterised in that and also comprises the accepting state obtaining section that at least 1 value in the electric field strength of utilization broadcasting of accepting state obtaining section or radio communication, the error rate, the delay degree calculates above-mentioned accepting state value.

In this structure, the accepting state obtaining section is when receiving digital broadcast, and at least one value calculates the accepting state value in the electric field strength of utilization broadcasting or radio communication, the error rate, the delay degree; When receiving analog broadcasting, utilize the electric field strength of broadcasting or radio communication, at least one value calculates the accepting state value in the delay degree.

According to said structure, because the accepting state obtaining section can correctly be known accepting state, whether record the broadcasted content of deterioration because accepting state worsens thereby can judge rightly, so, recorded announce content rightly.

(example of accepting state value is utilized accepting state value figure)

Data recording equipment of the present invention is characterised in that, also comprises the positional information obtaining section of the positional information that obtains the notebook data tape deck and write down position on the map and the accepting state figure of the relation between the accepting state value; Above-mentioned accepting state obtaining section is read the accepting state value of above-mentioned data recording equipment in current location by above-mentioned accepting state figure.

In this structure, the positional information obtaining section of GPS (Global Positioning System) etc. is known the current location of notebook data tape deck.The accepting state obtaining section is according to the information of the current location that obtains from the positional information obtaining section, the accepting state figure of the accepting state of promptly broadcasting from the electric wave state that records each place that generates in advance, obtains the accepting state value on the current location.

According to said structure, because the accepting state value on the current location of notebook data tape deck has only one, so, the memory capacity that is consumed in the time of can reducing in recording medium recorder state value significantly.In addition, for the data recording equipment of portable or movable-type, even the accepting state of current location also can be obtained in the destination that will move of notebook data tape deck from accepting state figure.

(example of the recording method of accepting state value, the part of renewal broadcasted content)

Data recording equipment of the present invention is characterised in that, above-mentioned record data generating unit is in video data area, the voice data zone of above-mentioned broadcasted content, use at least one zone in zone, the descriptor region to generate the above-mentioned record data that comprise above-mentioned accepting state value.

In this structure, the record data generating unit is when generating record data by the broadcasted content that has received and accepting state value, in video data area, the voice data zone of the broadcasted content that has received, use at least one zone in zone, the descriptor region to write the accepting state value and generate above-mentioned record data.

According to said structure, because the accepting state value is written on the part of the broadcasted content that has received, so, can play such effect, that is, the memory capacity that when recorder state value in recording medium, is consumed with only in recording medium the record received broadcasted content the time memory capacity identical.

In addition, the situation of analog broadcasting digitlization (symbolism, coding) and record is identical with above-mentioned example, and it can be to video data area, voice data zone, it is regional to use, recorder state value at least one zone in the descriptor region.In addition, in the mode of VTR that analog broadcasting is recorded in tape with analog form etc., can on the part of (during the recurrence) between the sync period of video, write the accepting state value.

(recording indexes information)

Data recording equipment of the present invention is characterised in that, above-mentioned recording control part is according to having or not time information in the quality of above-mentioned accepting state value and the above-mentioned broadcasted content that has received, by predetermined method, try to achieve timestamp as the elapsed time information of the above-mentioned broadcasted content that has received; And, obtain the record position information that expression constitutes the position of data in broadcasted content of the above-mentioned broadcasted content that has received; With the pairing of above-mentioned timestamp and above-mentioned record position information and generate index information, and send this index information to above-mentioned record data generating unit, wherein, above-mentioned record position information is corresponding to above-mentioned each timestamp; Above-mentioned record data generating unit is carried out record with above-mentioned index information as index file.

In this structure, be higher than predetermined threshold value in the accepting state value, broadcasted content is digital broadcasting and includes in broadcasted content under the situation of timestamp, as the preordering method of obtaining the timestamp that is used to generate index information, recording control part uses the timestamp that for example is comprised in the broadcasted content to be used as timestamp.

On the other hand, when above-mentioned accepting state value is lower than above-mentioned predetermined threshold value, perhaps when not including timestamp in the broadcasted content, also can for example in recording control part, keep up-to-date and effective timestamp in advance, by on, add from obtaining new timestamp by the elapsed time that the moment that obtains timestamp the broadcasted content begin by the elapsed time that timestamp write down.

Recording control part is obtained timestamp, and the position that will be write down in broadcasted content corresponding to the content of the broadcasted content that the moment received of each timestamp is as record position information and after obtaining, both that are obtained are matched the generation index information, and send this index information to the record data generating unit.

Above-mentioned record data generating unit is compiled above-mentioned index information and is carried out record as index file.

According to said structure,, also record index information even in record data, do not comprise the reception section data because accepting state is abominable.Therefore, utilize index information at data reproducing device, during the special playback of carry out F.F., rewind down, restarting to reset etc. from the position that stopped last time, in record data, do not include the reception section data even reset, can reset with the speed of special playback in the same manner yet with other parts.

(abominable content and the index information of record expression accepting state)

Data recording equipment of the present invention is characterised in that, above-mentioned recording control part, in above-mentioned accepting state value during less than above-mentioned predetermined threshold value, generate abominable video content of expression accepting state and in the audio content at least one, perhaps, take out the abominable video content of the expression accepting state generate in advance and to keep and in the audio content at least one and be inserted in the above-mentioned broadcasted content; Utilize the above-mentioned record position information that inserts content to generate index information; Above-mentioned content that generates and above-mentioned index information are included in the information that will send the record data generating unit to.

In this structure, as expression accepting state abominable video content and audio content, for example can exemplify out, make the message of " can not receive broadcasting " become the video content of audio content or text line.

Recording control part will replace the abominable part of accepting state in the broadcasted content with the interior content that the moment was generated that perhaps is lower than predetermined threshold value in the accepting state value that generates in advance and keep, and insert in the broadcasted content and send to the record data generating unit.

In addition, utilize the record position information of the content of inserting as employed record position information when generating index information.

According to said structure, when carrying out special playback such as F.F. or rewind down by data reproducing device, owing to utilized index information, thus the content of resetting and having inserted.Therefore, even do not possess the data reproducing device of special construction, also can be to the part that can not receive of user prompt in broadcasted content in special playback.

(taking out the data reproducing device of accepting state value)

In order to solve above-mentioned problem, the broadcasted content that data reproducing device of the present invention is reset and write down, data reproducing device of the present invention comprises: data are read portion, from the recording medium that has write the record data that constitute by broadcasted content and above-mentioned accepting state value, read this record data, wherein, above-mentioned broadcasted content is the broadcasted content that receives from data recording equipment of the present invention; Format analysis portion, the form of the record data that parsing is read takes out accepting state value and broadcasted content; And the playback control part, according to above-mentioned accepting state value, control the playback of above-mentioned reception data, be used for avoiding the part that the playback quality worsens in the above-mentioned broadcasted content that user prompt is writing down.

In this structure, data are read portion's playback record data from the recording medium that records broadcasted content and accepting state value.Format analysis portion resolves the form of the record data of being read, and takes out accepting state value and broadcasted content.Lsb decoder is decoded and is reset the broadcasted content that is removed, but processing of whether decoding and resetting or control how to adjust the playback time volume are the control of control part of being reset.The playback control part judges whether the processing of the broadcasted content that is removed being decoded and resetting by lsb decoder according to the accepting state value that is removed, perhaps judges volume how to adjust playback time.

According to said structure, from recording medium, side by side read broadcasted content and accepting state value, thereby can judge the deterioration degree of the playback quality of the broadcasted content that is recorded.Therefore, can play such effect, that is, skip playback, perhaps adjust processing such as volume, thereby reduce the unplessantness displeasure of bringing to the user because of worsening the part that bring unplessantness displeasure when the audiovisual seriously may for the user.

(output accepting state value)

Data reproducing device of the present invention also comprises efferent, in the broadcasted content of above-mentioned taking-up, add each accepting state value and at least one laggard line output of representing in the accepting state value of above-mentioned taking-up, wherein, above-mentioned representative accepting state value representative each accepting state value corresponding with the broadcasted content that has taken out.

In this structure, when resetting the broadcasted content that has taken out, efferent is on the picture of notebook data replay device, by figure, literal or diagrammatic form to accepting state value that user prompt has taken out or represent in the accepting state value at least one, wherein, above-mentioned representative accepting state value representative each accepting state value corresponding with the broadcasted content that has taken out.In addition, when resetting the broadcasted content that takes out, illuminating part or vibration section that efferent utilizes the notebook data replay device to be had, the accepting state value of taking out to user prompt or represent in the accepting state value at least one, wherein, above-mentioned representative accepting state value representative each accepting state value corresponding with the broadcasted content that has taken out.

According to said structure, the user of the broadcasted content that audiovisual is taken out can simply be informed in the state of above-mentioned broadcasted content when receiving in the audiovisual, so, can skip the part that the playback quality worsens and carry out comfortable replay operations.

(make in the guide look demonstration and include the accepting state value)

Data reproducing device of the present invention comprises that also guide look shows generating unit, generate the guide look video data by the attribute information of each broadcasted content that recording medium write down with corresponding to the above-mentioned accepting state value of above-mentioned each broadcasted content, wherein, this guide look video data becomes the basis of the list of pointing out to the user.

In this structure, guide look shows that generating unit is according to the attribute information such as each broadcasted content of the length of program title, broadcast date and playback duration etc. that is recorded in the recording medium, with the above-mentioned accepting state value corresponding to above-mentioned each broadcasted content, generation will become the guide look video data to the basis of the list of user prompt.

According to said structure, the broadcasted content that the user can easily be informed in the recording medium to be write down, the residing accepting state of the broadcasted content that perhaps is recorded.Therefore, the user can easily select the program title or the playback quality of the broadcasted content of own desired audiovisual also to reset from showing the shown list in this guide look.

(make in the guide look demonstration and comprise total playback time)

Data reproducing device of the present invention is characterised in that, when generating above-mentioned guide look video data, above-mentioned guide look shows that generating unit makes above-mentioned guide look video data comprise the playback duration length of the broadcasted content that has taken out, wherein, the above-mentioned broadcasted content that has taken out is determined by above-mentioned playback control part.

In this structure, guide look demonstration generating unit makes and includes the playback duration that utilizes above-mentioned predetermined threshold value or above-mentioned preset time playback time to be skipped the playback duration gained of part deducting in the guide look demonstration, and with its length, and all videos that comprised in the broadcasted content that replaces having taken out with this playback duration or the playback duration of voice data as the playback duration of this broadcasted content.

According to said structure, by the length of guide look demonstration to the playback duration of user prompt broadcasted content, reflected the actual playback time of controlling the playback time of skipping through above-mentioned playback owing to this length, so, the required playback duration length of reality when the user can be informed in this broadcasted content of audiovisual.

(when the accepting state value is abominable, guide look is shown includes the accepting state value)

Data reproducing device of the present invention is characterised in that, above-mentioned guide look demonstration generating unit only when the accepting state of judging the broadcasted content that is taken out according to the above-mentioned accepting state value that above-mentioned record data comprised is abominable, generates the clauses and subclauses that conform in the clauses and subclauses (entry) of having a guide look of each broadcasted content that shows has been added the guide look video data of above-mentioned accepting state value.

In this structure, guide look shows that generating unit is under the condition of severe in the accepting state of judging the broadcasted content that is taken out according to the above-mentioned accepting state value that above-mentioned record data comprised only, generates the guide look video data to the figure of the above-mentioned accepting state value of clauses and subclauses additional representation that conforms in the clauses and subclauses of having a guide look of each broadcasted content that shows.

According to said structure, for the accepting state good broadcasted content of quality of well promptly resetting, the user do not utilize the figure of expression receive status to show, so can need not the good broadcasted content of accepting state in the broadcasted content that is write down in the recording medium is also noted consciously.

(example of the control of resetting)

Data reproducing device of the present invention is characterised in that, above-mentioned playback control part is in above-mentioned accepting state value during less than predetermined threshold value, perhaps, less than predetermined threshold value and after having passed through preset time, the accepting state of the broadcasted content that is judged as above-mentioned taking-up when receiving be deterioration, and controls above-mentioned lsb decoder and make it skip decoding processing and/or control above-mentioned efferent to suppress its output.

In this structure, when the accepting state value that is read out has surpassed predetermined threshold value or from surpassing beginning and through behind the preset time, the accepting state of the broadcasted content that the playback control part is judged above-mentioned taking-up when receiving worsens, and controls above-mentioned lsb decoder and make it skip decoding processing and/or control above-mentioned efferent to suppress its output.

According to said structure, when the decoding of the broadcasted content that is read out according to the accepting state value that is read out and when resetting the control of handling, owing to preestablished threshold value, so, clear and definite to the benchmark that the deterioration of the playback quality of the broadcasted content that is read out is judged, according to the processing of decoding and reset of this clear and definite benchmark, can more correctly not allow the playback of the broadcasted content that the user feels bad.In addition, according to the accepting state value that is read out, when the broadcasted content that is read out being decoded and resetting the control of handling, judging after surpass predetermined threshold value and begin to have passed through preset time, under the situation that accepting state when the broadcasted content that is taken out receives has worsened, when the playback quality of the broadcasted content that takes out is momentary deterioration, preset time through before also will continue the broadcasted content resetting and taken out.Therefore, the playback quality in the broadcasted content of reading, occurs and worsen the time partly than short and frequent the appearance under the deterioration situation partly, not frequently to skip the broadcasted content of having read to reset, but by keeping the suitable continuity of content to reset, so, can alleviate the unplessantness displeasure of bringing to the user.

(control of threshold value)

Data reproducing device of the present invention is characterised in that, comprises operating portion, accepts by playback, F.F., the rewind down of user's input, stops, at least one operation in the time-out, volume adjustment, OK, NG operation; Above-mentioned playback control part, the aforesaid operations input of being accepted according to aforesaid operations portion, above-mentioned accepting state value and skip decoding processing or suppress in the above-mentioned state of a control of above-mentioned efferent output at least one are adjusted in above-mentioned predetermined threshold value and the above-mentioned preset time at least one.

In this structure, when resetting the broadcasted content taken out, the user carries out the audiovisual of foregoing for the part that the quality of avoiding resetting worsens, will reset, F.F., rewind down, stop, the input operation of time-out, volume adjustment, OK, NG.Operating portion is accepted these input operations by the user sent.When these operations were performed, the playback control part was judged being set at of above-mentioned predetermined threshold value or above-mentioned preset time when incorrect, changes above-mentioned predetermined threshold value or preset time.The playback of the broadcasted content that above-mentioned predetermined threshold value that the utilization of playback control part has been changed or above-mentioned preset time have taken out.

According to said structure, the user estimates the playback quality of the broadcasted content of final taking-up, be adjusted to predetermined threshold value and preset time according to input operation into the benchmark of the control of resetting from user's feedback, so, can carry out the playback of appropriate broadcasted content, this playback has reflected the metewand of user to the playback quality.

(deleting the abominable content of its accepting state)

Data reproducing device of the present invention is characterised in that, above-mentioned guide look demonstration generating unit is retrieved above-mentioned accepting state value less than the abominable content of the accepting state of predetermined threshold value in each broadcasted content that recording medium write down, the content that above-mentioned accepting state is abominable generates the guide look video data and it is prompted to the user as clauses and subclauses; Aforesaid operations portion accepts the selection indication that the user has done according to the guide look video data of above-mentioned prompting; Also comprise deletion portion,, from aforementioned recording medium, delete selected content in the lump according to the above-mentioned user's who accepts selection indication.

In this structure, guide look demonstration generating unit is retrieved the abominable content of accepting state that above-mentioned reception data value is lower than above-mentioned predetermined threshold value in each broadcasted content that recording medium write down, the content that above-mentioned accepting state is abominable generates the guide look video data and it is prompted to the user as clauses and subclauses.Aforesaid operations portion accepts the selection indication that the user has done according to the guide look video data of above-mentioned prompting.Selected content is deleted in the lump according to the above-mentioned user's who accepts selection indication by deletion portion from aforementioned recording medium.After the selected content of deletion, guide look shows that generating unit generates the guide look video data and is prompted to the user according to each broadcasted content that is write down in the recording medium once more.

According to said structure, owing to can from recording medium, simply delete the accepting state abominable broadcasted content of quality of badly promptly resetting, the list that is made of the good broadcasted content of accepting state to user prompt only is so can allow the user distinguish consciously to select under the situation of the abominable broadcasted content of the good broadcasted content of accepting state and receiving system the broadcasted content of resetting.

In addition, above-mentioned data recording equipment and data reproducing device can be realized by hardware, also can realize by executive program.Specifically, program among the present invention is to make computer show the message handling program that generating unit, guide look display control unit move as above-mentioned accepting state obtaining section, record data generating unit, recording control part, format analysis portion, playback control part, lsb decoder, guide look at least, records this message handling program in recording medium of the present invention.

When utilizing computer to carry out this message handling program, this computer will move as above-mentioned data recording equipment or data reproducing device.Thus, with above-mentioned data recording equipment or data reproducing device in the same manner, when accepting state worsens and judges the accepting state value and be lower than predetermined threshold value, by not writing down owing to accepting state worsens the broadcasted content that degenerates, therefore, can reduce the capacity of the recording medium that when the recorded announce content, is consumed.In addition, owing to be not that accepting state value record with all generations is in recording medium, but the accepting state value record under the situation about only the accepting state value being changed is in recording medium, so, can reduce the capacity of the recording medium that when the recorded announce content, is consumed.In addition, according to the accepting state value of from recording medium, reading with broadcasted content, so, can judge the deterioration degree of the playback quality of the broadcasted content that has write down.Thus, it is too abominable and the playback that may bring the part of unplessantness displeasure for the user when audiovisual perhaps reduces the unplessantness displeasure of bringing to the user by adjusting volume to skip accepting state.

Description of drawings

Fig. 1 is the functional block diagram of expression data recording equipment of the present invention.

Fig. 2 (a) is the key diagram of example that is used to represent the figure of accepting state shown on the picture of data recording equipment of the present invention and data reproducing device.

Fig. 2 (b) is the key diagram of example that is used to represent the text line of the accepting state that the picture of data recording equipment of the present invention and data reproducing device is shown.

Fig. 2 (c) is the key diagram of example that is used to represent the chart of the accepting state that the picture of data reproducing device of the present invention is shown.

Fig. 2 (d) is a key diagram of representing the example of accepting state with the luminous of data recording equipment of the present invention and data reproducing device and vibration.

Fig. 3 is the key diagram of the group structure of expression digital broadcasting.

Fig. 4 (a) is the key diagram of the configuration example when being illustrated in recorder data and accepting state.

Fig. 4 (b) is the key diagram of another configuration example when being illustrated in recorder data and accepting state.

Fig. 4 (c) is the key diagram of other configuration example when being illustrated in recorder data and accepting state.

Fig. 5 is the functional block diagram of expression data recording equipment of the present invention, is the functional block diagram that is different from the part of Fig. 1.

Fig. 6 is the functional block diagram of expression data reproducing device of the present invention.

Fig. 7 is the chart that is used to illustrate the relation of the accepting state in every period elapsed time and the control of resetting.

Fig. 8 is illustrated in to contain the functional block diagram of having a guide look of Presentation Function in the data reproducing device of the present invention.

Fig. 9 is the key diagram of the example that shows of the guide look of expression broadcasted content.

Figure 10 is the example of accepting state quality is represented in expression with figure a key diagram.

Figure 11 is the key diagram of other example of showing of the guide look of expression broadcasted content.

Figure 12 is the key diagram of the example of relation between the accepting state of expression content and the content that received damaged.

Figure 13 illustrates the key diagram that concerns between content-data, the index information in the index file, timestamp and the index of 1 picture in the file that receives data.

Figure 14 is illustrated in to utilize index file to carry out the key diagram of the method for reading in of index information of the playback time of 10 times of speed.

Figure 15 (a) has enumerated at index information not have under the damaged state, the chart of the timestamp of 10 times of index informations that speed playback utilized when utilizing index information to carry out 10 times of speed playbacks.

Figure 15 (b) be enumerated in index information occur damaged and the state that replenishes index information damaged under, utilize index information to carry out the chart of timestamp of 10 times of index informations that speed playback utilized of playback time of 10 times of speed.

Figure 16 represents when accepting state badly causes receiving data defect, the key diagram that concerns between content-data, the index information in the index file, timestamp and the index in the file of reception data.

Figure 17 is illustrated in accepting state badly to cause receiving under the situation of data defect, when having replenished damaged index information, and the key diagram that concerns between content-data, the index information in the index file, timestamp and the index in the file of reception data.

Figure 18 is illustrated in accepting state badly to cause receiving under the situation of data defect, when having replenished damaged content and index information, the key diagram that concerns between content-data, the index information in the index file, timestamp and the index in the file of reception data.

Embodiment

[data recording equipment]

(functional block diagram of data recording equipment)

Below by functional block diagram shown in Figure 1 data recording equipment of the present invention is described.

Acceptance division 10 is by antenna, tuner and has adopted the formations such as demodulator of the demodulation mode of orthogonal frequency division multiplexi (OrthogonalFrequency Division Multiplex) etc.Acceptance division 10 receives the broadcast data that sends from TV and Radio Service etc., and will be sent to record controls handling part 20 (recording control part) and lsb decoder 30 by broadcast data being carried out the reception data that demodulation obtains.

Under the situation of digital broadcasting, 30 pairs of lsb decoders carry out decoding processing by the packed data that comprises in the obtained reception data of acceptance division 10, and to efferent 40 output decoder data, wherein, this decoded data is that packed data is carried out decoded decoded data.Under the situation of analog broadcasting, lsb decoder 30 will be from the obtained reception data of acceptance division 10 directly as decoded data, and sends to efferent 40.About packed data, will be explained below.Do not having under the reception data conditions that obtains from acceptance division 10, lsb decoder 30 is sent to efferent 40 with particular style as decoded data.

At this, if for example during video, then with the bitmap style (bitmappattern) of black or cyan data, if then be used as the data of above-mentioned particular style during audio frequency with noiseless PCM data as above-mentioned particular style.

In addition, but lsb decoder 30 further has can detect audiovisual zone external signal, for example surpass hyperacoustic high pass filter of 30KHz, can carry out following processing, promptly, with the above-mentioned hyperacoustic ratio that is comprised in the decoded signal that generates according to decoded data, interference value as decoded signal is represented, and is sent the interference value of this decoded signal to record controls handling part 20.

Accepting state obtains handling part 21 (accepting state obtaining section) and receives the accepting state of broadcasting wave or receive the interference value of decoded signals from lsb decoder 30 from acceptance division 10, generation is used to represent the value (below be referred to as " accepting state value ") of the accepting state of broadcasting wave, and sends to record controls handling part 20.About the generation method of accepting state value, will elaborate following.

Record controls handling part 20 generates handling parts 22 (record data generating unit) to record data and sends reception data that obtain from acceptance division 10 and the accepting state value that obtains from accepting state obtaining section 21 when data recording equipment 1 recorded announce content.In addition, when data recording equipment 1 is gone off the air the record of content, will stop to generate the processing that handling part 22 sends above-mentioned reception data and accepting state value to record data.Do not generate under the situation of handling part 22 transmitting and receiving datas and accepting state value at record controls handling part 20 to the reception data, because record data generated handling part 22 and do not obtain reception data and accepting state value in this periods, so, in being recorded in the data of recording medium (below be referred to as " record data "), do not comprise reception data and the accepting state value that does not obtain.In addition, record data are by at least one data that constitute that receive in data and the accepting state value.

In addition, also can be only when obtaining accepting state value that handling part 21 obtains by accepting state and change, record controls handling part 20 just generates the accepting state value that handling part 22 transmissions obtain to record data." when the accepting state value changes " is meant, the preceding accepting state value and the current different moment of obtaining of accepting state value that once generates handling part 22 outputs to record data.According to such structure, when the accepting state value is write down as record data, owing to only when this accepting state value changes, just carry out record, so can dwindle the size of record data.

And then, record controls handling part 20 also can be only to record data generate handling part 22 send accepting states during abominable the zero hour and the accepting state value of the finish time.By such structure, can further dwindle the size of record data.

Record controls handling part 20 also can irrespectively generate handling part 22 transmitting and receiving datas to record data with the quality that accepting state is worth represented accepting state, can also only generate handling part 22 transmitting and receiving datas to record data when accepting state is good.And will be in aftermentioned about the data that when accepting state degenerates, send to record data generation handling part 22.

For to the user prompt accepting state, record controls handling part 20 is based on the accepting state value, generates the data that are used for to the user prompt accepting state (below be referred to as " accepting state reminder-data ") and sends to efferent 40.

Record data generate handling part 22 and generate record data according to the reception data and the accepting state value that obtain from record controls handling part 20, and send to recording portion 50 (data recording section).In addition, about according to receive data and accepting state value generate method for recording data will be in following.

Recording portion 50 will generate the record data that handling part 22 is obtained from record data, be recorded in the recording mediums such as flash memory or hard disk.

In addition, to the recording medium that record data write down, for example can be semiconductor memory, in addition can also be recording medium that utilizes optical mode or magnetic means etc., but the physics mode that is not limited to write down.

Efferent 40 utilizes audio frequency replaying apparatus such as display unit such as LCD or loud speaker, the decoded data that to obtain from lsb decoder 30 is given the user as video or audio prompt, and according to the accepting state reminder-data that obtains from record controls handling part 20 to the user prompt accepting state.

As " above-mentioned accepting state reminder-data ", can be assumed to be shown in Fig. 2 (a), on the picture 60 that shows the content that has received, the figure 201 that changes based on accepting state; Perhaps shown in Fig. 2 (b), on picture 60, represent the text line 202 of accepting state.In addition, when on picture 60, showing, can also shown in Fig. 2 (d), utilize at least a method in the vibration of body of luminous or data recording equipment 1 of playback, illuminating part 70 of beeping sound or music to send prompting like that to the user as these images 201 of accepting state reminder-data or text line 202.

(packed data)

In above-mentioned processing, as the generating mode of 30 decoding compressed data of lsb decoder, for example can consider in the following ways, that is,, follow the mode of MPEG4 international standards such as (MovingPicture Experts Group) if data are video; If data are audio frequency, follow the mode of MPEG2 AAC international standards such as (Advanced Audio Coding).

In addition, if video then can adopt the data of bitmap style etc.; If audio frequency then can adopt the data of PCM (Pulse Code Modulation) data etc. to be used as the above-mentioned packed data resulting result that decodes is decoded data.

(the generation method of accepting state value)

In order to generate the accepting state value, receive status obtains handling part 21 and utilizes accepting state.As the information of this accepting state of expression, can adopt the electric field strength, the error rate (BER), propagation delay degree of broadcasting wave or the interference value of the decoded signal obtained from lsb decoder 30 etc., but be not limited to this.In addition, also can be to be used as final accepting state value by making up value these multiple classes, that the information of expression accepting state calculates.

Broadcast as under the situation of digital broadcasting at this, also can utilize the structural error message of the packed data that is broadcasted to generate the accepting state value.For example, when 30 pairs of reception data that obtain from acceptance division 10 of lsb decoder are decoded, should but then be equivalent to this mistake for the data of predetermined value for the situation of the value beyond the predetermined value in reception data Central Plains.

In addition, have at the same time in the data recording equipment 1 of radio telephone function, can be with the electric field strength of the used electric wave of radio telephone as a kind of utilization the in the information of expression accepting state.By utilizing this electric field strength, can further correctly generate the accepting state value that has reflected accepting state.

(when accepting state worsens, generating the method that handling part 22 sends data) to record data

Record controls handling part 20 also can form following structure, promptly, to obtain accepting state value and the predetermined threshold value that handling part 21 obtains from accepting state compares, when this accepting state value during less than predetermined threshold value, promptly, when the quality of the broadcasted content that has received takes place to worsen, do not generate handling part 22 and send in broadcasted content that has received and the accepting state value that is generated at least one to record data.Because the standard difference that different user is allowed the quality deterioration degree of broadcasted content, thus above-mentioned threshold value be preferably formed for the user can be to its structure of adjusting.

In this case, when record controls handling part 20 sends to record data generation handling part 22 for the record data that will generate are recorded in recording medium, be higher than predetermined threshold value in the accepting state value, accepting state becomes under the good situation, generates handling part 22 to record data and sends broadcasted content and the accepting state value that has received.But, be lower than predetermined threshold value in the accepting state value, under the situation that accepting state degenerates, then do not generate handling part 22 and send the broadcasted content that received and in the accepting state value at least one to record data.

For example, be lower than in the accepting state value under the situation of predetermined threshold value, do not generate handling part 22 and send the broadcasted content that has received, send the accepting state value that has generated and only generate handling part 22 to record data to record data.

According to such structure, when the accepting state deterioration, the consumption of the employed memory of record data on the recording medium only can be set at the needed amount of recorder state value that is used for.

In addition, in other example, be lower than in the accepting state value under the situation of predetermined threshold value, do not generate handling part 22 and send the accepting state value that has generated, send the broadcasted content that has received and only generate handling part 22 to record data to record data.

According to such structure, when accepting state worsens, the consumption of the employed memory of record data on the recording medium only can be set at the needed amount of recorded announce content that is used for.

(when accepting state changes, generating the method that handling part 22 sends data) to record data

Record controls handling part 20 also can form following structure, promptly, to obtain the accepting state value accepting state value that obtain previous with it that handling part 21 obtains from accepting state compares, only when the accepting state value changes, just generate handling part 22 and send the accepting state value that has generated to record data.

Recording control part 20 surpasses under the situation of above-mentioned predetermined threshold value in the accepting state value, the accepting state value of previous accepting state value and current time is compared, its result when the accepting state value does not change, only generates handling part 22 to record data and sends broadcasted content.When the accepting state value changes, generate handling part 22 to record data and send broadcasted content and the accepting state value that has received.In addition, be lower than in the accepting state value under the situation of above-mentioned predetermined threshold value, the accepting state value of previous accepting state value and current time is compared, its result, when the accepting state value does not change, do not generate handling part 22 and send broadcasted content and the accepting state value that has received to record data.When the accepting state value changes, only generate handling part 22 and send the accepting state value to record data.

According to such structure, can reduce at the consumption of employed memory during in recording medium with the accepting state value record.

(when accepting state worsens or when changing generate the data that handling part 22 sends) to record data

In the moment that accepting state worsens or changes, record controls handling part 20 can generate the data (this is referred to as " skip flag " below data) that handling part 22 sends the record that has been used to represent to skip the reception data to record data, replaces transmitting and receiving data.Skip flag also can comprise the represented value of data volume by the reception data that are not recorded.The recording method of skip flag is with described later identical in the recording method of recording medium with the accepting state value record, can be recorded in preparation zone, descriptor (descriptor) zone of transport stream group (Transport Stream Packet) such as the MPEG2 system specification (below be referred to as " TS group ") or be attached in the data area before or after each TS group, also can be recorded in other file.

(the synthetic and recording methods of accepting state value and reception data)

Example as record data, for example when receiving data and be the such structure of the TS group of the MPEG2 system specification, can consider following method, be the zone of using from now on (below, be referred to as " preparation is regional ") with the accepting state value record in the preparation of the stem of TS group as illustrated in fig. 3 promptly.According to such structure, each TS group and the accepting state value when receiving this TS group can 1 pair 1 ground correspondences, even and can not be to being recorded in the data reproducing device that the accepting state value of preparation in the zone read, can be not yet to the playback of the broadcasted content that write down exert an influence with the accepting state value record in recording medium.

In addition, under the situation of digital broadcasting, when in the group that has received, having the data area that is called as descriptor, can not utilize and be stored the accepting state value by the zone of the defined descriptor of this broadcasting specification.Wherein, descriptor is made of the zone of specific identifier zone, data length zone and data itself.In the replay device of can not be corresponding such descriptor that is not defined, skip this descriptor part because can utilize the value in above-mentioned identifier zone and above-mentioned data length zone, so,, can not exert an influence to the action of resetting even can not read the replay device of foregoing description symbol yet.

In addition, situation at recorder state value in video data area or voice data zone, when illustrating as example, be that the former data to video or audio frequency are ES (Elementary Stream: carry out record elementary stream) with the MPEG2 system specification.But in fact, in this case,, can suppose in not compressed former data, to carry out record in order to be recorded in video or the voice data.In other words, under the situation of receiving digital broadcast, can implement by the following method, promptly, with the broadcasted content overwrite that received after on the decoded data of decodingization once, packetized elementary stream) and generate TS group (the part to symbolism once more, PESization, TS groupization does not illustrate in the functional block of Fig. 1) carry out symbolism once more, generate PES (Packetized Elementary Stream:.In addition, when recorder state value in not using the zone, recorder state value in the fill area of PES or TS group, specifically, this fill area be in the conditional compilation of PES stem byte of padding, be sandwiched in selection district in the rewriting district of TS group and the byte of padding between the load (pay-load) or the filling group represented with PID=0x1FFF etc.In addition, under the situation of recorder state value in descriptor region, the record of the additional information beyond carrying out video or voice data zone in a part of zone of using as section (section) or form, wherein, this section (section) or form have PAT (Program Association Table), NIT (Network Information Table) etc.Descriptor is recited as Descriptor in the document of the MPEG2 of the English system specification.

As another structure that record data is recorded in the recording medium, promptly, for high speed access record data, under the situation about writing down in supplemental data zone in each TS group, also can be shown in Fig. 4 (a) like that with the accepting state value record in the data area of appending.

In addition, owing to, size of data can be set at the multiple of computer easy to handle 32 or 64 by the supplemental data zone, so, can realize the access of high speed.For example, the size of 1 of MPEG2 system specification defined TS group is 188 bytes.At this moment, when data that should size with Computer Processing, as long as append 4 bytes as above-mentioned data area in this group, this group just becomes 192 bytes, so, just become the multiple of computer easy to handle 32 or 64.Thus, can pass on order with less storage and carry out passing on of record data.

In addition, when the data structure example that adopts as Fig. 4 (a) shown in, will carry out sequencing, and make record data generate handling part 22 appends 4 bytes in each is organized data area, and in the data area of appending the recorder state value.

In addition, can also adopt following method shown in Fig. 4 (b) as other structure example of record data, that is, will with certain during in the corresponding accepting state value of reception data and the timestamp of above-mentioned reception data be recorded in together in the file different with above-mentioned reception data.According to such structure, even the data reproducing device that can not read the file that receives state value can be not only read the broadcasted content that the file that receives data is reset and write down yet with reference to the file of accepting state value.

In addition, in the structure example of above-mentioned record data, generate to have and hold two files that receive data and accepting state value respectively.At this moment, in order to carry out file management simply, also can be shown in Fig. 4 (c), be recorded in record in the recording medium when finishing at record data, the file of accepting state value is engaged on after the file that receives data and forms 1 file.According to such structure, in the data reproducing device that can not read to the file that receives state value, the reception data that are in the file first half are correctly decoded, after the content that has write down is reset, can not correctly be decoded owing to be in the data of the accepting state value of file latter half, ignored so will be used as incorrect data.

In addition, can suppose that following structure is as other structure when carrying out the record of digital broadcasting, promptly, under the situation of digital broadcasting, in receiving data, especially in video data, significant increase and decrease will appear owing to the content of video in the data volume that constitutes a picture, and from recording start constantly, the increase degree of the process degree of video time and the reception data that are recorded is not 1 pair 1 corresponding and disproportionate again.Therefore, can not find the picture data in a certain moment in the broadcasted content that has been recorded (below be referred to as " timestamp ") simply is (below be referred to as " index ") on which position of received data file.

Thus, the information that also above-mentioned timestamp and above-mentioned index can be associated (below be referred to as " index information ") is recorded in other file shown in Figure 13 (below be referred to as " index file ").In the example depicted in fig. 13, an index information is made of a timestamp and an index, constitutes index file thereby conclude a plurality of index informations with sequential.In addition, each content-data of the picture in each index information and the file that receives data is associated.

In data reproducing device, index information can utilize in the fast forward playback of the broadcasted content that has write down, fast reverse playback and end and search.For example, as shown in figure 14, when with 10 times of fast fast forward playbacks, to include with the second be the timestamp of unit to index information in the indexed file, under the situation that index information is arranged, read initial index information, skip ensuing 9 index informations, read the 11st index information again, so read an index information in per 10 index informations.That is, shown in Figure 15 (a), the timestamp of reading is per 10 seconds timestamps.Like this, from index file, read each index information, and read the data that are comprised in the picture in the broadcasted content, and reset at interval, thereby can realize 10 times of fast fast forward playbacks with 1 second based on the index that is comprised in each index information.

But under the accepting state condition of severe, the playback time that utilizes said method to carry out data will go wrong.In Figure 16, represented that the file of the reception data under the damaged situation and the example of index file appear in the part of broadcasted content when the abominable part of accepting state can not receive.In this example and since accepting state abominable during receive data occur damaged, so, occur damaged too from the resulting index information corresponding of index file with the reception data.In this example, from the moment 0 ' 29 " to 1 ' 04 " of timestamp, accepting state is abominable and can't receiving broadcast content.In the indexed file, at the index information of moment of timestamp timestamp of " index information after record the moment 1 ' 05 " for constantly 0 ' 29.When utilizing this index file to carry out above-mentioned fast forward playback, shown in Figure 15 (b), because in reset constantly 0 ' 20 with the 1 second content of " content then reset constantly 1 ' 05 ", so, be not the problem of 10 times of speed with playback speed occurring.

At this, in data recording equipment of the present invention, when accepting state degenerates and can't receiving broadcast content, record controls handling part 20 will carry out following processing.Promptly, as shown in figure 17, record controls handling part 20 generates index information with the form of replenishing damaged index information, this index information be right after broadcasted content occur damaged previous index information (moment 0 ' 29 of timestamp "; index #297) afterwards; and; this index information is that the last moment from normal receiving broadcast content (is 0 ' 29 ") in this example, the information that the timestamp that (in this example, is spaced apart 1 second) at certain intervals and increases and the index (being index #297 in this example) of last received picture are associated; With common processing in the same manner, the index information that has generated is sent to record data generates handling part 22; Record data generate handling part 22 and utilize index information to generate index file, and generate record data according to receiving data and accepting state value.

According to such structure, have damaged part because of accepting state badly causes broadcasted content, but record its index information.Therefore, data reproducing device utilize index information carry out F.F., rewind down, since last time stop position special playback such as playback again the time, damaged part appears for broadcasted content, also can shown in Figure 16 (a), utilize the index information of arranging at a certain time interval by the moment of timestamp like that, thus, can reset according to the indicated playback speed of user.Certainly, owing to do not write down because of the abominable and damaged data of accepting state, so, can avoid to user prompt.

In addition, recorded and narrated the example that under the situation of digital broadcasting, includes timestamp in the broadcasted content in the above description, but be not limited to this.Promptly, in broadcasting as analog broadcasting and broadcasted content, do not include under the situation of timestamp, perhaps, broadcast as digital broadcasting but since accepting state abominable, can't obtain under the situation of timestamp, record controls handling part 20 also can form following structure, promptly, keep up-to-date and effective timestamp, can't from broadcasted content, obtain the elapsed time of timestamp and carry out addition, obtain new timestamp as timestamp with the moment of the timestamp that is kept.

In addition, also may there be such situation, that is, includes the mark that whether has mistake in this group of expression in each group of digital broadcasting.Usually the receiver of digital broadcasting can be found above-mentioned mark and skip this group and reset.

Therefore, record data generate handling part 22 also can form following structure,, does not show mistake and under the accepting state condition of severe of this group at above-mentioned mark that is, and it is updated to error flag in the group that has received.For example, the accepting state value is lower than threshold value, and accepting state is judged as when abominable, error flag is updated to " 1 " of expression " wrong " from " 0 " of expression " inerrancy ".In addition, suppose that " error flag " that this place is recorded and narrated for example is: the 7th transport_error_indicator of the 2nd byte in the TS group.In general, error flag is carried out special processing for the TS group of " 1 " as mistake.

According to said structure, carry out the data reproducing device of content playback even can not utilize the accepting state value, also can utilize error flag to come the content that is recorded is carried out suitable playback, wherein, error flag is based on that accepting state value that data recording equipment of the present invention 1 generates sets.

In addition, other method as recorder state value in record data, also can adopt following method, promptly, synthesize receiving the video (figure, figure, literal etc.) of data and any one of audio frequency (beeping sound, music etc.) or the information of more than one data and expression accepting state, and it is recorded in the recording medium as record data.For example, when accepting state during less than certain value, take following method, promptly, " can not receive " this text line is synthesized as video and the video that receives data, and the method that writes down as record data, will represent beeping sound that accepting state is abominable etc. and the audio frequency that receives data synthesize the method for the line item of going forward side by side, under the situation of not synthesizing with the reception data, only generation is used to represent video or the voice data that accepting state is abominable or generate above-mentioned data in advance, and replaces the method that data are inserted that receives with these data.At this moment, the length of synthetic or the video that inserts and audio frequency can be not to be lower than time of threshold value identical with accepting state.

According to such structure, even can not be to receiving the data reproducing device that state value reads, can be record data also by playback of content, to the accepting state of user prompt during at received content, and, under the situation of the time that broadcasted content when the length of video that synthesizes or insert and audio frequency is lower than threshold value less than accepting state is damaged, will shorten the whole audiovisual time, thereby can save the audiovisual time.

In addition, in generating the structure of above-mentioned index information, because of accepting state abominable, can not received signal and when causing broadcasted content damaged, regenerate index information in order to replenish damaged index information, utilized the index of the last picture that receives.But be not limited to this, also can adopt following structure.

As shown in figure 18, record controls handling part 20 be right after index information before broadcasted content is damaged (moment 0 ' 29 of timestamp "; index #297) afterwards; generate index information with the form of replenishing damaged index information; wherein; this index information is that the last moment from normal receiving broadcast content (is 0 ' 29 ") beginning (being 1 second interval in this example) timestamp of increasing and index (being an index #303 in this example) associated index information of having inserted content at certain intervals in this example, this content is the abominable content of expression accepting state, the content that for example comprises the message of " can not receive " etc., this content are inserted and are received in data.

According to said structure, undertaken by data reproducing device under the situation of special playback such as F.F. or rewind down, owing to utilize index information, so the content of insertion will be reset.Thus, even do not have the data reproducing device of special construction, also can be in special playback in the user prompt broadcasted content, fail receiving unit.

In addition, also can be between the sync period of video, in the height range of audio frequency etc. with as " watermark " can not audiovisual form come the recorder state value.According to such structure, in having carried the data reproducing device that watermark understands function, can be to the accepting state of user prompt during at recorded content, and, even do not have the data reproducing device that function is understood in watermark, can reset yet as certain record data of content.

(accepting state obtains other topology example of handling part 21)

Fig. 5 is the functional block diagram that accepting state that the expression accepting state obtains other topology example of handling part 21 obtains handling part 21B.In this functional block diagram, only represented to obtain the relevant part of handling part 21, and the part except these relevant portions is identical with functional block diagram shown in Figure 1 with accepting state.

It also can be following structure that accepting state obtains handling part 21B,, connects the positional information obtaining section 80 (positional information acquisition device) of GPS etc. that is, and obtains the current position information of data recording equipment 1 from positional information obtaining section 80.In this case, can from obtained positional information and accepting state figure, obtain the accepting state value of data recording equipment 1 on current location.Wherein, this accepting state figure is generated and is recorded the position on the map and the relation of accepting state value in advance, in detail will be in aftermentioned about it.

In addition, also structure that can be such, promptly, replacing accepting state figure with the position at the electric wave station that sends out broadcasting wave stores, electric wave station that the current location with data recording equipment 1 among the electric wave station is nearest and the distance transform between data recording equipment 1 current location become the accepting state value, thereby obtain the accepting state value.

In addition, also structure that can be such, promptly utilize positional information that obtains from positional information obtaining section 80 and the translational speed that calculates data recording equipment 1 from the time information that timer 90 is obtained, and utilize this translational speed to calculate of the influence of Doppler's effect again, thereby calculate the accepting state value with this to the accepting state of broadcasting wave.

According to said structure, can access more accurate accepting state value, and can improve the method for accepting state to user prompt.

(accepting state map generalization method)

This accepting state figure can be the accepting state figure that manufacturer investigates and makes the accepting state in each place in advance, and it is stored in the data recording equipment as ROM (Read Only Memory) and provides.Also can be that data recording equipment 1 analysis obtains the accepting state in each place along with the moving of the user who carries data recording equipment 1, and in the nonvolatile internal storage of data record shape value 1 generation accepting state figure.In addition, use simultaneously the ROM that provides by manufacturer and according to moving of user carried out obtain these two kinds of methods of analysis the time, also can bring into play effect.

In addition, have simultaneously at data recording equipment 1 under the situation of radio telephone function, also can be assumed to be following structure, promptly, to obtain the server that accepting state figure that analysis generated comes together in enterprise in each data record shape device 1 by above-mentioned, and by this server and the shared accepting state figure of other users, wherein, this enterprise provides the data of accepting state figure.

(effect of present embodiment)

According to said structure, data recording equipment 1 of the present invention writes the accepting state value both depositing of the broadcasted content that has received in the zone, in this case, can not increase the capacity of record data, and the broadcast data and the accepting state that can will receive are carried out record together.In addition, because can be to the accepting state of the reception data that user prompt write down, so, can impel the position of user's mobile data tape deck 1 or change the direction of antenna, make accepting state improve.In addition, data recording equipment 1 of the present invention has the abominable partial record of accepting state in the broadcasted content that will not receive in the structure of recording medium, so, can reduce to be used to write down the memory capacity of the recording medium of record data.

[data reproducing device]

(functional block diagram of data reproducing device)

Below utilize functional block diagram shown in Figure 6 that the structure of data reproducing device 2 of the present invention and the action of resetting are described.

Read portion 100 (data are read portion) playback record data from recording medium, and send to format analysis handling part 23 (format analysis portion).

Format analysis handling part 23 is resolved the obtained record data from the portion of reading 100, and after will receiving data and the accepting state value being separated, receives data and export the accepting state value to playback control and treatment portion 24 (playback control part) to lsb decoder 30 outputs.

Playback control and treatment portion 24 bases generate decoding control signal from format analysis handling part 23 obtained accepting state values, and to lsb decoder 30 outputs.Particularly, when the accepting state value is lower than a certain threshold value (below be referred to as " decoding control threshold value "), perhaps being lower than the state continuance certain hour of decoding control threshold value when above, controlling and make lsb decoder 30 end the decoding processing of reception data.Will be about decoding control threshold value in aftermentioned.

In addition, playback control and treatment portion 24 bases generate the accepting state reminder-data from format analysis handling part 23 obtained accepting state values, and send to efferent 40.The index of the accepting state when wherein, the accepting state reminder-data is the expression content record.Reminding method about the accepting state reminder-data will be in aftermentioned.

Lsb decoder 30 is according to the decoding control signal by 24 inputs of playback control and treatment portion, to implementing decoding processing by the received signal of format analysis handling part 23 inputs, and sends receiving the decode decoded data of gained of data to efferent 40.When the reception data that from format analysis handling part 23, do not obtain to decode, send to efferent 40 and to be used to represent not have the particular style of data as decoded data.

Efferent 40 is obtained decoded data from lsb decoder 30, obtain the accepting state reminder-data from playback control and treatment portion 24, and after this accepting state reminder-data and above-mentioned decoded data synthesized, the picture 60 by data reproducing device 1 or loud speaker etc. carried out the playback of video or audio frequency.

(reminding method of accepting state reminder-data)

Efferent 40 after decoded data and accepting state reminder-data are synthesized, the synthetic data of prompting on the picture 60 of data reproducing device 2.Can enumerate figure 201 shown in Fig. 2 (a) for synthetic data, perhaps the text line 202 shown in Fig. 2 (b) etc.In addition, can also utilize reset like that predetermined sound or music shown in Fig. 2 (d), the illuminating part 70 that data reproducing device 1 is possessed carries out luminous, makes data reproducing device 1 that at least a or more than one method in the method such as vibration take place.

(decoding control threshold value)

Decoding control threshold value can be to be worth arbitrarily, and it can be the value by user's appointment, also can be threshold value to be adjusted specify the feasible value that is higher than or is lower than current threshold value.In addition, the decoding control of being undertaken by 24 pairs of lsb decoders 30 of above-mentioned playback control and treatment portion can be to be that video and audio frequency carry out quiet hot-tempered control to the content that will reset, in addition, can also be the control of the playback of skipping described later etc.

By this decoding control, after having carried out being recorded the playback of content, the user further adjusts under the situation of the volume operation of volume or F.F., fast reverse operation, and playback control and treatment portion 24 will judge whether the decoding control threshold value of the control that is used to decode is suitable.For example, when the user carries out forwarding operation when content playback, not shown operating portion is accepted this input, and to 24 transmissions of playback control and treatment portion, playback control and treatment portion 24 judges: owing to decoding control threshold value is crossed the low former content that should will skip as mistake that causes, promptly the content that should not reset but is not classified as mistake and carries out playback time, carries out the playback of content with regard to improving decoding control threshold value.In contrast, when the user carried out fast reverse operation during at content playback, not shown operating portion (operating means) received this input, and sent to playback control and treatment portion 24, and playback control and treatment portion 24 can reduce the adjustment of decoding control threshold value.

More specifically, for example, be higher than the playback time of skipping under the state of the desired value of user in decoding control threshold value, because the user may carry out rewind down, again watch the part of being skipped in content, so,, carry out the adjustment of " reducing decoding control threshold value " when under the state of " playback of skipping " and " fast reverse operation " when being transfused to.Opposite with it, not skipping under decoding control threshold value is lower than the state of the desired value of user resets waits control and during the noisy video/audio of output device, because the user may carry out F.F. or reduce the operation of volume, so the state of " not skipping reset control " down and " F.F. or reduce the operation of volume " when being transfused to, carry out the adjustment of " threshold value is controlled in the decoding that raises ".

In addition, the above-mentioned user's operation that is used to judge is not limited to volume operation, perhaps F.F., fast reverse operation.Playback control and treatment portion 24 also can directly receive the evaluation of " OK " or " NG " that the playback quality of content made from the user, can also implement other operation.

In addition, can change decoding control threshold value according to the accepting state of the whole contents that is write down.For example, when the accepting state of whole contents is good, can get the higher playback quality that improves whole contents by the control threshold setting of will decoding.In contrast, when the accepting state of whole contents is abominable, can by the control threshold setting of will decoding must hang down control make how much allow since when receiving the confusion of the content playback that mistake caused of record, thereby playback of content as far as possible.In addition, the various calculating of average, maximum that the accepting state of whole contents can be by 24 pairs of accepting states that write down of playback control and treatment portion or minimum etc. are obtained.

In addition, decoding control threshold value also can be used fuzzy value.Utilizing under the situation of fuzzy value, the video in the time of also can be with content playback or the quiet hot-tempered degree of audio frequency are controlled as fuzzy value.

According to said structure, making decoding control threshold value have flexibility, even under the accepting state value fluctuates near decoding control threshold value environment, the content of also can comfortable ground resetting and having write down.

(action of skipping and resetting)

Corresponding relation between the state of the playback action the when accepting state when Fig. 7 represents to write down by 1 pair of content of data recording equipment is reset these contents that are recorded with the variation in elapsed time with by data reproducing device 2.

The action of skipping and resetting of the content that playback control and treatment portion 24 is carried out below is described under the accepting state condition of severe when content record.

At first, the state of accepting state more than decoding control threshold value is called well, the state below decoding control threshold value is called bad.Represented that in Fig. 7 initial accepting state is a good state when carrying out the reception of content by data recording equipment 1, but become badly in moment t1 accepting state, and reverted to good situation once more at moment t2.

Under these circumstances, playback control and treatment portion 24 only when accepting state is in the state of decoding below the control threshold value, exports the decoding control signal that is used for interrupt decoder and playback to lsb decoder 30.Under situation as shown in Figure 7, the interior content and not resetting during the t2 constantly of t1 constantly will be skipped.The beginning that lsb decoder 30 will decode and reset according to the control signal of playback control and treatment portion 24 or stop.Thus, playback time can skip automatically accepting state be in bad during in content.

In addition, can switch skips, and the reset Push And Release of action determines whether the action of skipping and resetting, make in the playback of skipping of playback time usually, but the playback of when special playback such as fast forwarding and fast rewinding, then not skipping.In addition, also can use different decoding control threshold values to various playbacks, that is, the control threshold setting of will decoding under the situation of resetting usually gets higher and the good part of quality of only resetting; To decode the control threshold setting under the situation of special playback such as fast forwarding and fast rewinding must be lower, even the abominable part of quality is also reset.In addition, also can make the exercise void of skipping and resetting according to user's operation.

When the reception data that obtain from format analysis handling part 23, containing the skip flag of having represented to have skipped record, playback control and treatment portion 24 also can carry out following processing, promptly, send indication to lsb decoder 30 and make the front and rear part of the content part skipped to connect glibly, and on picture 60, show the message of " playback of having skipped " etc. by efferent 40.

In addition, include at skip flag under the situation of value of the data volume that expression skipped, playback control and treatment portion 24 also can carry out following processing, promptly, calculate the time of skipping by the data volume of skipping, and on picture 60, for example show the message of " playback in 10 seconds is skipped " etc. by efferent 40.

In addition, when lsb decoder 30 has the notice of the part that is not recorded when playback control and treatment portion 24 receives at recorded content, also can carry out following processing, promptly, do not reset immediately content after skipping, but carry out considerably exporting the special playback of no image and no volume with the actual time of being skipped.

According to said structure, can in the content that user prompt badly causes being recorded owing to accepting state, there be the part that is not recorded.

(other configuration example of accepting state reminder-data)

Efferent 40 can according to all accepting state values that comprised in the content that has write down carry out shown in Fig. 2 (c), showing like that the whole contents that has write down accepting state distribution graph 203 and show the arrow 204 of the replay position of current content.In the figure, the part of the current playback of arrow 204 expressions is positioned at which part of whole contents, the accepting state when distribution graph 203 is illustrated in content record simultaneously.The generation method of distribution graph 203 is as follows, promptly, playback control and treatment portion 24 is received in the accepting state value that comprises a certain content that is write down from the format analysis handling part, according to the playback duration of this content and on picture 60 area in expression distribution graph 203 zones that can use calculate the proper width of perpendicular rod, and with the mean value of the accepting state value that comprised in the suitable time at this perpendicular excellent width height as each perpendicular rod.In the figure, the 205 expression decoding control threshold values of the horizontal line on the distribution graph 203.The user is higher than according to each perpendicular rod of distribution graph 203 or is lower than horizontal line 205, just can learn the content corresponding with each perpendicular rod part is how to be carried out playback.But when utilizing fuzzy value to decode control, decoding control threshold value is not to represent with 1 horizontal line, represents but can utilize to have amplitude and have deep or light banded figure to wait on the above-below direction of drawing.

According to said structure, can be to the part of user prompt current playback in the whole time in playback of content, and can point out the accepting state of whole contents and the state of the playback control of resetting etc. according to skipping of carrying out of accepting state.Thus, the user can simple knowledge and is known the situation of content playback.

(guide look Presentation Function)

Data reproducing device 2 of the present invention also can have the guide look Presentation Function.Fig. 8 represents to have the functional block diagram of the data reproducing device 2 of having a guide look of Presentation Function, and utilizes this figure that the guide look Presentation Function of data reproducing device 2 of the present invention is described.In addition, the functional block except that guide look show to generate handling part 25 and efferent 40 in the functional block diagram shown in Figure 8 has identical functions with the functional block of being put down in writing in the functional block diagram of data reproducing device 2 shown in Figure 6.

Read portion 100 and from recording medium, read one or more record data, and send to format analysis handling part 23B.The portion of reading 100 utilized herein is identical with the portion of reading 100 shown in Figure 6.

At first, read the indication that portion 100 is sent according to format analysis handling part 23B, from the recording medium that records a plurality of record data, read each record data, and send to format analysis handling part 23B.

Format analysis handling part 23B resolves each record data of obtaining from the portion of reading 100, takes out to receive data and accepting state value and send to guide look to show generation handling part 25 (guide look shows generating unit).At this, format analysis handling part 23B show to generate the function of handling part 25 transmitting and receiving datas and accepting state value except being added to guide look, and other functions are identical with the function that format analysis handling part 23 in the functional block diagram shown in Figure 6 is had.

Guide look shows that generating handling part 25 generations has a guide look of video datas and send to efferent 40, and wherein, the guide look video data is to wait by the accepting state value of format analysis handling part 23B input with through the title, the airtime that receive the data generation to constitute.At this, above-mentioned guide look video data except comprising title and the airtime, can also append the information of the having or not of program summary, impresario, data broadcasting, playback duration etc.When with have from the corresponding accepting state value of the reception data of format analysis handling part 23B input when a plurality of, also can be with the value that derived from a plurality of accepting state values as the accepting state value of representing these reception data.As the method that from a plurality of accepting state values, derives accepting state value represent these receptions data, can by on average, maximum, minimum, variance (Variance), standard deviation, mode (mode value), median, more than the certain value or following ratio wait and try to achieve.

Efferent 40 is gone up at picture 60 (with reference to Fig. 2) and is shown the guide look video data of obtaining from guide look demonstration generation handling part 25.As display packing, the method that can utilize the figure of video recording date, title and the expression accepting state quality as shown in figure 10 of content as shown in Figure 9 to make up.

Process along with the time in reception data includes under the situation of a plurality of accepting state values, this accepting state of passing through in time can be distributed to show by chart 205 as illustrated in fig. 11.In Figure 11, March, the accepting state of the replay TV play that 13:00～15:00 included on the 5th was to show with roughly good on the whole figure (mark).

In addition, in the guide look video data, also can include the representative image (thumbnail: thumbnail) that receives data.In this case, also can form following structure, promptly, guide look show to generate handling part 25 and is receiving the moment that the variation of decoding control threshold value appears being higher than or being lower than in accepting state value that data comprised, obtain the portrait (still frame) in this moment and as representative image to efferent 40 transmissions.

According to said structure, because the reception data name of demonstration and the accepting state that should receive data are had a guide look of in data reproducing device of the present invention 2 promptings, the user can simply discern the playback quality of content before resetting.

(other configuration examples that guide look shows)

Guide look shows that generation handling part 25 when generating the guide look video data, can only append the figure of expression accepting state quality as shown in figure 10 to receiving content in bad condition with above-mentioned method.According to such structure, the content good owing to accepting state will not show with the figure of representing accepting state, so the user will need not to discern accepting state.

In addition, guide look show to generate handling part 25 can also have following function, that is, and only retrieval, selective reception content in bad condition in the guide look video data.

When illustrated operating portion input never will be retrieved the indication of the abominable content of accepting state, guide look shows that generating handling part 25 retrieves the content that the accepting state value of wherein representing above-mentioned reception data is lower than decoding control threshold value in the content that has write down, and generates option table according to this content.Guide look show to generate each clauses and subclauses (entry) that handling part 25 is rewritten the guide look video data according to above-mentioned option table, makes that deserving content can distinguish with the good content of other accepting state.And then when when the input of above-mentioned not shown operating portion will be deleted the indication of above-mentioned content of deserving, guide look shows that generating handling part 25 sends delete command and above-mentioned option table to not shown deletion handling part (deletion portion).Above-mentioned not shown deletion handling part is deleted above-mentioned content of deserving with reference to above-mentioned option table from recording medium.After deletion was finished, guide look showed that generating handling part 25 reads the reception data by format analysis handling part 23B once more from recording medium, generates the guide look video data, and by the list of efferent 40 to the user prompt content.

According to said structure, owing to can from recording medium, delete the abominable content of its accepting state simply, so, the content that the user need not to distinguish consciously the abominable content of the good content of accepting state and accepting state and selects to reset.

In addition, skipping in the structure of resetting to receiving content in bad condition, because the playback duration of content is smaller than the playback duration under the playback situation of not carrying out skipping, so, also can form following structure, that is, utilize from receiving accepting state value and the decoding control threshold value that data comprised and calculate, calculate behind the playback duration under the situation of resetting of skipping, in the guide look video data, append this playback duration and be prompted to the user.

(remarks item)

The present invention is not limited to above-mentioned execution mode, can do various changes according to the scope that claim is recorded and narrated.That is, also be comprised within the technical scope of the present invention by making up the resulting execution mode of technological means that discloses separately in the different execution modes.

Each piece of data recording equipment 1, especially record controls handling part 20, accepting state obtain handling part 21 and record data generation handling part 22, and each piece of data reproducing device 2, especially format analysis handling part 23,23B, playback control and treatment portion 24 and guide look show that generating handling part 25 all can be made of hardware logic, also can the CPU of utilization as described below and realize by means of software.

That is, data recording equipment 1 and data reproducing device 2 have: the storage device (recording medium) etc. of carrying out CPU (central processing unit), the ROM (read only memory) that stores said procedure, the RAM (random accessmemory) that launches said procedure, storage said procedure and the various memory of data etc. of the control program command (CP command) be used to realize each function.In addition, in recording medium, can write down as the software that is used to realize above-mentioned functions by computer with reading, it is the program code (execute form program, intermediate code program, source program) of the control program of data recording equipment 1 and data reproducing device 2, and this recording medium offered data recording equipment 1 and data reproducing device 2, read by its computer (or CPU, MPU) and to be recorded in the program code in the aforementioned recording medium and to carry out it, so, also can realize purpose of the present invention.

As aforementioned recording medium, for example, can use following recording medium, that is: the tape class of tape, cassette tape etc., the dish class of CD that comprises the disk, CD-ROM, MO, MD, DVD, CD-R etc. of floppy disk, hard disk etc., the card class of IC-card (comprising memory card), light-card etc., perhaps the semiconductor memory class of mask model ROM, EPROM, EEPROM, flash rom etc.

In addition, also data recording equipment 1 and data reproducing device 2 can be constituted and can be connected with communication network, and supply with the said procedure code via communication network.As above-mentioned communication network, not special restriction, for example, can utilize the Internet (internet), Intranet (intranet), extranet (extranet), LAN, ISDN, VAN, CATV communication network, VPN (virtual private network) (virtual private network), phone loop line network, mobile communications network, satellite communication network etc.In addition, as the transmission medium that constitutes communication network, not special restriction, for example, can utilize the wire communication of IEEE1394, USB, power line, cable TV loop line, telephone wire, ADSL loop line etc., also can utilize the radio communication of infrared ray such as IrDA or remote controller etc., Bluetooth (registered trade mark), 802.11 cordless communication networks, HDR, mobile telephone network, satellite loop line, received terrestrial digital broadcasting network (terrestrial digital net) etc.In addition, even the said procedure code by electronics transmit specialized, by the form of mounting in the computer data signal of carrier wave, also can realize the present invention.

The industry utilizability

According to data recording equipment of the present invention, be recorded in record Jie at receiving broadcast content and with it During matter, the accepting state value that is used for the accepting state of expression broadcasted content also can be recorded in note effectively In the recording medium. In addition, according to data reproducing device of the present invention, be recorded in above-mentioned note in playback During broadcasted content in the recording medium, can carry out suitable playback according to the accepting state value, for example, jump Cross the abominable part of accepting state etc. Thus, the present invention can be widely used in having broadcast reception The pocket telephone of the playback of the broadcasted content that function and/or playback have been recorded, portable The various systems such as information terminal.

Claims (18)

1. a data recording equipment writes down the broadcasted content that has received, it is characterized in that, comprising:

The accepting state obtaining section obtains the accepting state of above-mentioned broadcasted content and generates the accepting state value of representing above-mentioned accepting state quality;

The record data generating unit is associated above-mentioned broadcasted content that has received and above-mentioned accepting state value, generates the record data that are made of above-mentioned broadcasted content that is associated and accepting state value; And

Recording control part, more above-mentioned accepting state value and predetermined threshold value, and whether carry out control from above-mentioned accepting state value to above-mentioned record data generating unit that transmit the control of the above-mentioned broadcasted content that receives and whether transmit to above-mentioned record data generating unit according to this comparative result.

2. data recording equipment according to claim 1 is characterized in that:

The data recording section that further comprises the above-mentioned record data of record in recording medium;

Above-mentioned recording control part, when controlling the transmission to above-mentioned record data generating unit at the above-mentioned record data that generate for record in aforementioned recording medium, more current accepting state value and accepting state value before, only when variation has taken place the accepting state value, just transmit above-mentioned accepting state value to above-mentioned record data generating unit.

3. data recording equipment according to claim 1 and 2 is characterized in that:

At least 1 value in the electric field strength of above-mentioned accepting state obtaining section utilization broadcasting or radio communication, the error rate, the delay degree calculates above-mentioned accepting state value.

4. data recording equipment according to claim 1 and 2 is characterized in that:

Comprise the positional information obtaining section of the positional information that obtains the notebook data tape deck and write down position on the map and the accepting state figure of the relation between the accepting state value;

Above-mentioned accepting state obtaining section is read the accepting state value of above-mentioned data recording equipment in current location by above-mentioned accepting state figure.

5. according to any described data recording equipment in the claim 1 to 4, it is characterized in that:

Above-mentioned record data generating unit is in the video data area of above-mentioned broadcasted content, voice data zone, use at least one zone in zone, the descriptor region to generate the above-mentioned record data that comprise above-mentioned accepting state value.

6. according to any described data recording equipment in the claim 1 to 5, it is characterized in that:

Above-mentioned recording control part according to having or not time information in the quality of above-mentioned accepting state value and the above-mentioned broadcasted content that has received, by predetermined method, is tried to achieve the timestamp as the elapsed time information of the above-mentioned broadcasted content that has received;

And, obtain the record position information that expression constitutes the position of data in broadcasted content of the above-mentioned broadcasted content that has received;

With the pairing of above-mentioned timestamp and above-mentioned record position information and generate index information, and send this index information to above-mentioned record data generating unit, wherein, above-mentioned record position information is corresponding to above-mentioned each timestamp;

Above-mentioned record data generating unit is carried out record with above-mentioned index information as index file.

7. data recording equipment according to claim 6 is characterized in that:

Above-mentioned recording control part, in above-mentioned accepting state value during less than above-mentioned predetermined threshold value, generate abominable video content of expression accepting state and in the audio content at least one, perhaps, take out the abominable video content of the expression accepting state generate in advance and to keep and in the audio content at least one and be inserted in the above-mentioned broadcasted content;

Utilize the record position information of the above-mentioned content of inserting to generate index information;

Above-mentioned content that generates and above-mentioned index information are included in the information that will send the record data generating unit to.

8. data reproducing device, the broadcasted content of resetting and having write down is characterized in that, comprising:

Data are read portion, from the recording medium that records the record data that constitute by broadcasted content and above-mentioned accepting state value, read this record data, wherein, above-mentioned broadcasted content is any broadcasted content that described data recording equipment received in the claim 1 to 7;

Format analysis portion, the form of the record data that parsing is read takes out accepting state value and broadcasted content; And

The playback control part according to above-mentioned accepting state value, is controlled the playback of above-mentioned reception data, is used for avoiding the part that the playback quality worsens in the above-mentioned broadcasted content that user prompt is writing down.

9. data reproducing device according to claim 8 is characterized in that:

Comprise efferent, in the broadcasted content of above-mentioned taking-up, add each accepting state value and at least one laggard line output of representing in the accepting state value of above-mentioned taking-up, wherein, above-mentioned representative accepting state value representative each accepting state value corresponding with the broadcasted content that has taken out.

10. it is characterized in that according to Claim 8 or 9 described data reproducing devices:

Comprise that guide look shows generating unit, generate the guide look video data by the attribute information of each broadcasted content that recording medium write down with corresponding to the above-mentioned accepting state value of above-mentioned each broadcasted content, wherein, this guide look video data becomes the basis of the list of pointing out to the user.

11. data reproducing device according to claim 10 is characterized in that:

When generating above-mentioned guide look video data, above-mentioned guide look shows that generating unit makes above-mentioned guide look video data comprise the playback duration length of the broadcasted content that has taken out, and wherein, the above-mentioned broadcasted content that has taken out is determined by above-mentioned playback control part.

12., it is characterized in that according to claim 10 or 11 described data reproducing devices:

Above-mentioned guide look shows generating unit, only when the accepting state of judging the broadcasted content that is taken out according to the above-mentioned accepting state value that above-mentioned record data comprised is abominable, generates the clauses and subclauses that conform in the clauses and subclauses of having a guide look of each broadcasted content that shows have been added the guide look video data of above-mentioned accepting state value.

13. any described data reproducing device in 12 according to Claim 8 is characterized in that:

Above-mentioned playback control part, in above-mentioned accepting state value during less than predetermined threshold value, perhaps, less than predetermined threshold value and after having passed through the scheduled time, be judged as in the broadcasted content of the above-mentioned taking-up accepting state when receiving deterioration, and control above-mentioned lsb decoder and make it skip decoding processing and/or control above-mentioned efferent to suppress its output.

14. data reproducing device according to claim 13 is characterized in that:

Comprise operating portion, accept by playback, F.F., the rewind down of user's input, stop, at least one operation in the time-out, volume adjustment, OK, NG operation;

Above-mentioned playback control part, in the aforesaid operations input of being accepted according to aforesaid operations portion, above-mentioned accepting state value and the described above-mentioned state of a control of claim 13 at least one adjusted in above-mentioned predetermined threshold value and the above-mentioned preset time at least one.

15. data reproducing device according to claim 14 is characterized in that:

Above-mentioned guide look shows generating unit, in each broadcasted content that recording medium write down, retrieve above-mentioned accepting state value less than the abominable content of the accepting state of predetermined threshold value, and generate the guide look video data and it is prompted to the user as clauses and subclauses with the abominable content of above-mentioned accepting state;

Aforesaid operations portion accepts the selection indication that the user has done according to the guide look video data of above-mentioned prompting;

Also comprise deletion portion,, from aforementioned recording medium, delete selected content in the lump according to the above-mentioned user's who accepts selection indication.

16. a program is characterized in that:

Computer is moved as any each one that described data recording equipment possessed in the claim 1 to 7.

17. a program is characterized in that:

Computer is moved as any each one that described data recording equipment possessed in the claim 8 to 15.

18. the recording medium of an embodied on computer readable is characterized in that:

Claim 16 or 17 described programs have been write down.

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