WO2007080778A1

WO2007080778A1 - Audio-visual information recording device and audio-visual information recording method

Info

Publication number: WO2007080778A1
Application number: PCT/JP2006/325850
Authority: WO
Inventors: Takashi Uchiyama
Original assignee: Pioneer Corporation
Priority date: 2006-01-12
Filing date: 2006-12-26
Publication date: 2007-07-19
Also published as: JPWO2007080778A1

Abstract

On receiving a trial play instruction, an encoder unit (131) converts data VD1 outputted from a tuner unit (120) into recording data RCD in a recording format specified by a trial play setting instruction. Then a decode circuit (137) convents the recording data RCD transmitted through a switch circuit (136) into a play data VD2. A display displays and outputs the video and audio based on the play data VD2. Therefore, prior to the recording onto a DVD, the image quality and sound quality which may be acquired when reproduced after the video and audio are recorded on the DVD can be confirmed without actually recording them on the DVD on trial. Thus, a novel audio-visual information recording device capable of improving the convenience of the users is provided.

Description

Specification

Audiovisual information recording apparatus and audiovisual information recording method

Technical field

[0001] The present invention relates to an audiovisual information recording apparatus and an audiovisual information recording method.

Background art

Conventionally, audiovisual information recording devices such as DVD (Digital Versatile Disk) recorder devices and video tape recorder devices for recording audiovisual information such as video information and audio information included in TV method signals have been widely used. . In such an audiovisual information recording device, audiovisual information is recorded in a digital format when the audiovisual information is in a digital format. On the other hand, when the audiovisual information is in an analog format, the audiovisual information is recorded in an analog format.

[0003] The powerful audio-visual information recording apparatus can record data on a recording medium using a data compression method selected by the user. At the time of reproduction, data expansion is performed and audiovisual information is output to a reproduction device such as a television receiver (see Patent Document 1, etc .; hereinafter, “conventional example”). ").

[0004] Patent Document 1: JP 2002-84479 A

Disclosure of the invention

Problems to be solved by the invention

[0005] In the conventional technology, audiovisual information can be compressed and recorded, so that many types of audiovisual information can be recorded on a recording medium of a predetermined capacity, or long-time original audiovisual information can be recorded in a relatively small capacity. It can be recorded on a recording medium. However, if the original audiovisual information recorded by compressing the data is expanded after that, the original audiovisual information cannot be completely reproduced. The degree of difference between the original information and the reproduction information increases as the data compression rate increases.

[0006] Therefore, when audiovisual information is recorded at a specific data compression rate, it is not always possible to obtain images and sounds of a quality that satisfies the user during playback. For this reason, in order to reliably obtain images and sounds of satisfactory quality as a result of reproducing recorded information, audio-visual information equivalent to the audio-visual information to be recorded is used as a specific data compression rate. so It was necessary to record and play back and check whether images and sounds of satisfactory quality were obtained by the user.

[0007] It has been troublesome for the user to perform a powerful test recording and reproduction. Further, when the recording medium is a so-called RW (Read and Write) type capable of recording, reading and erasing, troubles such as erasing an area used for trial recording occur. On the other hand, if the recording medium to be used is a so-called R (Read) type in which only new recording can be performed again in the area once stored, the area used for trial recording is completely wasted. One of the problems to be solved by the present invention is to prevent such trouble of the user and wasteful use of the storage area.

[0008] The present invention has been made in view of the above circumstances, and an object thereof is to provide a new audiovisual information recording apparatus and audiovisual information recording method capable of improving user convenience. To do.

Means for solving the problem

[0009] According to a first aspect of the present invention, the acquired audiovisual information is converted into recording audiovisual information having a recording format to be recorded on the recording medium, and the read audio information is read from the recording medium. Information converting means for converting to estimated reproduction audiovisual information estimated to be equivalent to reproduction audiovisual information generated from recording audiovisual information; and recording the audiovisual information for recording on a recording medium and converting audiovisual information from the recording medium Recording medium access means for reading information; and first information selection means for selectively outputting one of! / ヽ of the reproduction audiovisual information and the estimated reproduction audiovisual information to the audiovisual reproduction device; The audiovisual information recording apparatus characterized by the above.

[0010] According to a second aspect of the present invention, after the acquired audiovisual information is converted into recording audiovisual information having a recording format to be recorded on the recording medium and recorded on the recording medium, the recording medium An estimated information conversion step of converting the acquired audiovisual information into estimated audiovisual information to be estimated and audiovisual information for reproduction generated from the audiovisual information for recording read from the audiovisual information for recording; A trial reproduction step of supplying information to the audio-visual reproduction device for reproduction; and when a command to be recorded on the recording medium in the recording format is made based on the result of reproduction in the trial reproduction step; Acquired vision An audiovisual information recording method comprising: a recording step of recording audio information in the recording format in the recording medium.

Brief Description of Drawings

FIG. 1 is a block diagram schematically showing a configuration of a DVD recorder device according to a first embodiment of the present invention.

2 is a block diagram for explaining the configuration of the recording / playback processing unit of FIG. 1. FIG.

3 is a flowchart for explaining a recording procedure by the apparatus of FIG.

FIG. 4 is a block diagram schematically showing a configuration of a video tape recorder device according to a second embodiment of the present invention.

FIG. 5 is a block diagram for explaining the configuration of the recording / reproducing processing unit of FIG. 4.

6 is a block diagram for explaining the configuration of the reproduction evaluation unit in FIG. 5. FIG.

7 is a flowchart for explaining a recording procedure by the apparatus of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described. In the following description, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

[First embodiment]

First, a first embodiment of the present invention will be described with reference to FIGS. In this embodiment, a DVD recorder device that records audiovisual information included in a digital TV broadcast signal will be described as an example of the audiovisual information recording device.

[0013] <Configuration>

FIG. 1 is a schematic block diagram of the configuration of the DVD recorder device 100 according to the present embodiment. As shown in FIG. 1, the DVD recorder device 100 includes a control unit 110, a tuner unit 120, and a recording / playback processing unit 130 as information conversion means and first information selection means. Further, the DVD recorder device 100 includes a DVD drive unit 140 as a recording medium access unit, a display selection unit 150 as a second information selection unit, and an operation input unit 160.

The control unit 110 performs overall control of the entire DVD recorder device 100. The control unit 110 includes a central processing unit (CPU) and a read-only memory (ROM). Read only memory), random access memory (RAM), etc., and various programs can be executed!

Tuner unit 120 outputs the broadcast content of a specific channel included in digital broadcast signal DBS received by antenna 220 as digital format data VD1 under the control of control unit 110. The tuner unit 120 selects a specific channel in accordance with a tuner control command CHC from the control unit 110.

The recording / playback processing unit 130 accesses a DVD (DVD—RW, DVD—R, etc.) 230 loaded in the DVD drive unit 140 under the control of the control unit 110. As shown in FIG. 2, the recording / playback processing unit 130 includes an encoder unit 131 as information format conversion means, and a decoder unit 135 that also functions as estimated information generation means.

The encoder unit 131 converts the data VD1 from the tuner unit 120 into a recording format specified by the control unit 110 in accordance with an encoder control command ENC including a recording format specification from the control unit 110. Then, the encoder unit 131 outputs the converted data to the DVD drive unit 140 as recording data RCD. Note that the DVD230 recording format includes XP mode format, SP mode format, LP mode format, EP mode format, and the like.

The decoder unit 135 includes a switch circuit 136 and a decode circuit 137. Here, the switch circuit 136 is configured to include a switch element such as an FET (Field Effect Transistor). In accordance with the selection command SC2 from the control unit 110, the switch circuit 136 receives either the recording data RCD from the encoder unit 131 or the read data RDD read from the DVD 230 by the DVD drive unit 140. Output to decode circuit 137.

The decoder unit 135 converts the data output from the switch circuit 136 into data for reproduction in accordance with the decode control command DCC from the control unit 110. Then, the decoding circuit 137 sends the converted data to the display selection unit 150 as reproduction data VD2. [0020] Note that the above-mentioned encoder control command ENC, selection command SC2, and decode control command DCC are collectively referred to as "recording / reproduction control command DRC" (see FIG. 1).

Returning to FIG. 1, the DVD drive unit 140 can load and unload the DVD 230, and records and reads data on the loaded DVD 230 under the control of the control unit 110. More specifically, the DVD drive unit 140 records the recording data RCD from the recording / reproduction processing unit 130 on the DVD 230 when recording is specified by the drive control command DVC from the control unit 110. In addition, when reading of the recording data is designated by the drive control command DVC from the control unit 110, the DVD drive unit 140 reads the data from the DVD 230 and sends it to the recording / playback processing unit 130 as the read data RDD.

The display selection unit 150 selects one of the data VD1 from the tuner unit 120 and the reproduction data VD2 from the recording / reproduction processing unit 130 in accordance with the selection command SC1 from the control unit 110. Then, the selected data is converted into a signal format suitable for the display device 210 and sent to the display device 210 as a display signal VS.

[0023] The operation input unit 160 is configured by a key unit provided in the main body of the DVD recorder device 100 or a remote input device including the key unit. When the user operates this operation input unit 160, the operation content of the DVD recorder device 100 is set. For example, the user uses the operation input unit 160 to perform settings such as a recording operation specifying a recording format, a reading / reproducing operation, and a trial reproducing operation specifying a recording format. Such input contents are sent from the operation input unit 160 to the control unit 110 as an operation setting command OSI.

[0024] <Operation>

Next, the operation of the DVD recorder device 100 configured as described above will be described mainly focusing on the operation of recording the contents of digital television broadcast on the DVD 230. FIG. As a premise, DVD230 is assumed to be installed in DVD drive unit 140. In addition, data VD 1 from the tuner unit 120 is selected in the display selection unit 150, and video and audio power based on the data VD1 are displayed and output on the display device 210. To do. In addition, the DVD drive unit 140 does not perform a recording operation or a reading operation. It shall be

[0025] When recording the contents of the digital TV broadcast on the DVD 230, the user cannot determine what recording format should be recorded on the DVD 230 from the viewpoint of reproduction image quality. In S11, the user uses the operation input unit 160 to make trial playback settings. In the trial playback setting, the user designates that the playback is a trial playback and a recording format candidate (for example, an EP mode format). Such designation contents are sent from the operation input unit 160 to the control unit 110 as a trial reproduction setting command.

The control unit 110 that has received the trial reproduction setting command notifies the encoder unit 131 of the encoder control command ENC including the recording format designated by the trial reproduction setting command. Further, the control unit 110 notifies the switch circuit 136 that the recording data RCD should be selected using the selection command SC2. Further, the control unit 110 notifies the display selection unit 150 that the reproduction data VD2 should be selected using the selection command SC1.

When the above trial reproduction setting is completed, trial reproduction is performed in step S12.

That is, the data VD1 output from the tuner unit 120 is converted into recording data RCD in the recording format specified by the trial reproduction setting command in the encoder unit 131. Subsequently, the recording data RCD via the switch circuit 136 is converted into reproduction data VD2 in the decoding circuit 137. Then, video and audio based on the reproduction data VD2 are displayed and output on the display device 210.

[0028] In step S13, the user who has viewed the result of the trial reproduction in step S12 determines whether the quality of the video and audio display and output results on the display device 210 is satisfactory. If the result of this determination is negative (step S13: N), in step S16, the user uses the operation input unit 160 to make a new trial playback setting. In this new trial playback setting, a new recording format candidate (for example, SP mode format) is designated.

[0029] The new designated content is sent from the operation input unit 160 to the control unit 110 as a new trial reproduction setting command. The control unit 110 that has received the new trial playback setting command receives the setting command for the trial playback in the recording format specified by the new trial playback setting command in the same manner as in step S11 described above. To the unit. Thereafter, steps S12, S13 and S16 are repeated until a positive determination is made in step SI3.

[0030] If the result of the determination in step S13 is affirmative (step S13: Y), in step SI4, the user uses the operation input unit 160 to select a desired channel, etc. Configure settings for recording. When setting for this recording, the user specifies that the recording should be performed and the recording format. Further, when setting for recording, the user performs video display and audio output on the display device 210 with respect to the data VD1 output from the tuner unit 120 and the playback data VD2 output from the recording / playback processing unit 130. Specify which to perform based on. Such specified contents are sent from the operation input unit 160 to the control unit 110 as a record setting command.

The control unit 110 that has received the record setting command notifies the encoder unit 131 of an encoder control command ENC that includes the recording format specified by the record setting command. Further, the control unit 110 notifies the DV D drive unit 140 that the recording operation start should be started using the drive control command DVC. Further, the control unit 110 notifies the display selection unit 150 that the display signal VS should be generated by selecting the type of data specified by the record setting command using the selection command SC1.

When the above recording setting is completed, recording on the DVD 230 is performed in step S 15. That is, the data VD1 output from the tuner unit 120 is converted by the encoder unit 131 into the recording data RCD in the recording format specified by the recording setting command. Then, the recording data RCD power is sequentially recorded on the DVD230. While the recording data RCD is recorded on the DV D230, video and audio based on the data instructed by the recording setting command are displayed and output on the display device 210.

[0033] When the recording format for recording on the DVD 230 is known, only the above steps S14 and S15 need be performed.

In addition, when playing back the recorded content on the DVD 230, the user makes playback settings using the operation input unit 160. In this playback setting, the user specifies that playback is to be performed. The contents of these specifications are the operation input unit 160 as a playback setting command. To the control unit 110.

The control unit 110 that has received the reproduction setting command notifies the switch circuit 136 that the read data RDD should be selected using the selection command SC2. In addition, the control unit 110 notifies the DVD drive unit 140 of a drive control command DVC to start the reading operation. Further, the control unit 110 notifies the display selection unit 150 that the reproduction data VD2 should be selected using the selection command SC1. As a result, video and audio corresponding to the content recorded on the DVD 230 are displayed and output on the display device 210.

[0036] As described above, in this embodiment, when a trial reproduction command is issued, the data VD1 output from the tuner 120 is recorded in the recording format designated by the trial reproduction setting command in the encoder unit 131. Data for recording Converted to RCD. Subsequently, the recording data RCD force decoding circuit 137 through the switch circuit 136 is converted into the reproduction data VD2. Then, video and audio based on the reproduction data VD2 are displayed and output on the display device 210.

[0037] Therefore, prior to recording on the DVD 230, it is possible to check the image quality and sound quality obtained if recorded on the DVD 230 and then played back without being recorded on the DVD 230 as a trial. Therefore, according to the present embodiment, user convenience can be improved.

[0038] [Second Embodiment]

First, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a video tape recorder device that records audiovisual information included in an analog television broadcast signal will be described as an example of the audiovisual information recording device.

[0039] Configuration>

FIG. 4 is a block diagram showing a schematic configuration of the video deep recorder apparatus 105 according to the present embodiment. As shown in FIG. 4, the video tape recorder device 105 includes a control unit 115, a tuner unit 125, and a recording / playback processing unit 170 as information conversion means and a first information selection means. The video tape recorder device 105 includes a tape drive unit 180 as a recording medium access unit, a display selection switch 155 as a second information selection unit, and an operation input unit 160. [0040] The control unit 115 performs overall control of the entire video tape recorder device 105. As in the case of the control unit 110 of the first embodiment, the control unit 115 includes a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM). Access Memory) etc., and various programs can be executed! /

[0041] Under the control of control unit 115, tuner unit 125 outputs the broadcast content of a specific channel included in analog broadcast signal ABS received by antenna 260 as analog signal VS1. The tuner unit 125 selects a specific channel in accordance with a tuner control command CHC from the control unit 115. The analog signal VS1 is a signal that can be used as the display signal VS supplied to the display device 210 as it is.

The recording / playback processing unit 170 accesses the video tape 270 loaded in the tape drive unit 180 under the control of the control unit 115. As shown in FIG. 5, the recording / reproduction processing unit 170 includes an encoder unit 171 as an information format conversion unit, a decoder unit 175, a switch circuit 176, and a reproduction evaluation unit 179 as an estimated information generation unit. I have.

The encoder unit 171 converts the signal VS1 from the tuner unit 125 into the recording format specified by the control unit 115 in accordance with the encoder control command ENC including the recording format specification from the control unit 115. Then, the encoder unit 171 outputs the converted signal to the tape drive unit 180 as a recording signal RCS. There are four types of videotape 270 recording formats: S-VHS mode and VHS mode, and standard and triple times corresponding to the recording time in each mode.

The decoder unit 175 converts the read signal data RDS read from the video tape 270 by the tape drive unit 180 into playback format data in accordance with the decode control command DCC from the control unit 115. Then, the decoder unit 175 outputs the converted signal to the switch circuit 176. The output signal from the decoder unit 175 can be used as the display signal VS supplied to the display device 210 as it is. It is a signal.

[0045] The switch circuit 176 includes a switch element such as a FET (Field Effect Transistor). In accordance with the selection command SC3 from the control unit 115, the switch circuit 176 receives either the signal from the decoder unit 175 or the estimated reproduction signal MWS output from the reproduction evaluation unit 179 as a reproduction signal. Display selection switch 155 as VS2.

The playback evaluation unit 179 converts the signal VS1 output from the tuner unit 125 into the estimated playback signal MWS in accordance with the playback evaluation command ESC, specifying the recording format from the control unit 115. Here, the estimated reproduction signal MWS is a signal estimated to be a signal when it is read after being recorded on the video tape 270 in the recording format specified by the reproduction evaluation command ESC. The estimated reproduction signal MWS is a signal that can be used as the display signal VS supplied to the display device 210 as it is.

[0047] As shown in FIG. 6, the reproduction evaluation unit 179 includes an analog-to-digital converter (hereinafter referred to as “ADC”) 191, a simulated reproduction signal generation circuit 192, and a digital / analog conversion. 193 (Digital to Analogue Converter; hereinafter referred to as “DAC”).

[0048] The ADC 191 converts the signal VS1 output from the tuner unit 125 into a digital signal. Then, the ADC 191 outputs the converted digital signal to the simulated reproduction signal generation circuit 192.

[0049] The simulated reproduction signal generation circuit 192 uses the digital signal received from the ADC 191 in accordance with the reproduction evaluation command ESC to specify the recording format from the control unit 115, and corresponds to the estimated reproduction signal MWS. Generate a signal. Here, the processing is performed by reflecting hysteresis noise or the like derived from recording on the video tape 270 for each type of recording format. The reflected hysteresis noise is determined based on the results of experiments in advance. The simulated reproduction signal generation circuit 192 outputs the generated digital signal to the DAC 193.

[0050] The DAC 193 converts the signal output from the simulated reproduction signal generation circuit 192 into an analog signal. The DAC 193 converts the converted analog signal to the estimated reproduction signal MWS. Then, the data is output to the switch circuit 176.

[0051] Note that the above-mentioned encoder control command ENC, selection command SC2, reproduction evaluation command ESC, and decode control command DCC are collectively referred to as "recording / reproduction control command ARC" (see FIG. 4).

[0052] Returning to FIG. 4, the tape drive unit 180 can load and unload the video tape 270, and records and reads data on the loaded video tape 270 under the control of the control unit 115. . More specifically, when the tape drive unit 180 is designated to be recorded by the drive control command TVC from the control unit 115, the tape drive unit 180 transmits the data corresponding to the recording signal RCS from the recording / playback processing unit 170 to the video tape 2. Record in 70. In addition, when reading of the recording data is designated by the drive control command TVC from the control unit 115, the tape drive unit 180 sends the reading result from the video tape 270 to the recording / reproducing processing unit 170 as a reading signal RDS.

[0053] The display selection switch 155 selects either the signal VS1 from the tuner unit 125 or the reproduction signal VS2 from the recording / reproduction processing unit 170 in accordance with the selection command SC1 from the control unit 115, and displays it. The signal VS is sent to the display device 210.

[0054] <Operation>

Next, the operation of the video tape recorder apparatus 105 configured as described above will be described mainly focusing on the recording operation of the content of the analog television broadcast on the video tape 270. It is assumed that the video tape 270 is attached to the tape drive unit 180. Further, it is assumed that the signal VS1 from the tuner unit 125 is selected in the display selection switch 155, and the video and audio based on the signal VS1 are displayed and output on the display device 210. The tape drive unit 180 is assumed to perform both recording and reading operations.

[0055] When recording the content of analog television broadcast onto videotape 270, if the user cannot determine what recording format to use on videotape 270 from the viewpoint of playback image quality In step S21, the user uses the operation input unit 160 to make trial playback settings. When setting the trial playback, the user designates that it is trial playback and a recording format candidate (for example, VHSZ triple mode format). Such The specified content is sent from the operation input unit 160 to the control unit 115 as a trial reproduction setting command.

Receiving the trial reproduction setting command, the control unit 115 notifies the reproduction evaluation unit 179 of the reproduction evaluation command ESC including the recording format designated by the trial reproduction setting command. Further, the control unit 115 notifies the switch circuit 176 that the estimated reproduction signal MWS from the reproduction evaluation unit 179 should be selected using the selection command SC3. Further, the control unit 115 notifies the display selection switch 155 that the reproduction signal VS2 should be selected using the selection command SC1.

[0057] When the above trial reproduction setting is completed, trial reproduction is performed in step S22.

That is, the signal VS1 output from the tuner unit 125 is converted into the estimated reproduction signal MWS in the reproduction evaluation unit 179. Subsequently, the estimated reproduction signal MWS via the switch circuit 176 is sent to the display selection switch 155 as a reproduction signal VS2. Then, video and audio based on the reproduction data VD2 are displayed and output on the display device 210.

[0058] The user who has watched the result of the trial reproduction in step S22 is satisfied that the quality of the video and audio display and output results on the display device 210 is satisfactory in step S23! Determine whether. If the result of this determination is negative (step S23: N), in step S26, the user uses the operation input unit 160 to make a new trial playback setting. In this new trial playback setting, a new recording format candidate (for example, VHSZ standard mode format) is specified.

[0059] The new designated content is sent from the operation input unit 160 to the control unit 115 as a new trial reproduction setting command. The control unit 115 that has received the new trial playback setting command receives the setting command for the trial playback in the recording format specified by the new trial playback setting command in the same manner as in step S21 described above. For unit 170. Thereafter, the above steps S22, S23, and S26 are repeated until a positive determination is made in step S23.

[0060] If the result of determination in step S23 is affirmative (step S23: Y), in step S24, the user selects a desired channel using the operation input unit 160. After doing so, settings for recording on the video tape 270 are made. When setting for this recording, the user specifies that the recording should be performed and the recording format. Further, when setting for recording, the user displays the video display and audio output on the display device 210 with the signal VS 1 output from the tuner unit 125 and the playback data VS 2 output from the recording / playback processing unit 170. Specify which to perform based on. Such specified contents are sent from the operation input unit 160 to the control unit 115 as a record setting command OSI. Depending on the designated recording format, an operation for replacing the video tape 270 with a recording format suitable for the recording format is generated.

The control unit 115 that has received the recording setting command notifies the encoder unit 171 of an encoder control command ENC including the recording format specified by the recording setting command. In addition, the control unit 115 notifies the tape drive unit 180 that the recording operation start should be started using the drive control command TVC. Further, the control unit 115 notifies the display selection switch 155 that the type of data designated by the record setting command should be selected and the display signal VS should be output using the selection command SC1.

When the above recording setting is completed, recording on the video tape 270 is performed in step S25. That is, the signal VS1 output from the tuner unit 125 is converted by the encoder unit 171 into a recording signal RCS having a recording format designated by the recording setting command. Data corresponding to the recording signal RCS is sequentially recorded on the video tape 270. During recording on the video tape 270, video and audio based on the signal instructed by the recording setting command are displayed and output on the display device 210.

As described above, in this embodiment, when a trial reproduction command is issued, the signal VS1 output from the tuner 125 is converted into the estimated reproduction signal MWS in the reproduction evaluation unit 179. Subsequently, the estimated reproduction signal MWS via the switch circuit 176 is sent to the display selection switch 155 as a reproduction signal VS2. Then, video and audio based on the reproduction data V D2 are displayed and output on the display device 210.

[0064] For this reason, prior to recording on videotape 270, videotape 270 was tested to confirm the image quality and sound quality obtained if it was played back after being recorded on videotape 270. Can be done without recording. Therefore, according to the present embodiment, it is possible to improve user convenience.

[Modification of Embodiment]

The present invention is not limited to the above embodiment, and various modifications are possible.

[0066] For example, in the first and second embodiments described above, the case where a television broadcast wave is received by the antenna 220 or 260 has been described, but a broadcast signal distributed from a CATV station is received. Say it with a word.

[0067] In the first and second embodiments described above, a television broadcast wave including video information and audio information is received. However, a broadcast wave including only video information or audio information is received. It ’s easy to do.

[0068] In the first and second embodiments described above, the power tuner unit in which the recorder device 100, 105 is provided with the tuner unit 120 or 125 is disposed outside the recorder device. .

[0069] The recording medium is not limited to the DVD and the video tape in the first and second embodiments, and any recording medium can be employed.

Claims

The scope of the claims

[1] The acquired audiovisual information is converted into audiovisual information for recording having a recording format to be recorded on the recording medium, and reproduction audiovisual information generated from the audiovisual information for recording read from the recording medium An information conversion means for converting the information into estimated audiovisual information for reproduction;

Recording medium access means for recording the recording audiovisual information on a recording medium and reading the recording audiovisual information from the recording medium;

Audiovisual information recording apparatus, comprising: first information selection means for selectively outputting either the reproduction audiovisual information or the estimated reproduction audiovisual information to the audiovisual reproduction apparatus.

[2] The acquired audiovisual information, the recording audiovisual information, and the reproduction audiovisual information are digital format information,

2. The audiovisual information recording apparatus according to claim 1, wherein the estimated audiovisual information for reproduction matches the audiovisual information for reproduction.

[3] The information conversion means includes:

An information format conversion means for converting the acquired audiovisual information into the recording audiovisual information;

The audiovisual information recording apparatus according to claim 2, further comprising: estimated information generating means for generating the estimated reproduction audiovisual information from the recording audiovisual information output from the information format conversion means.

[4] The acquired audiovisual information, the recording audiovisual information, and the reproduction audiovisual information are analog format information,

2. The audiovisual information recording according to claim 1, wherein the estimated audiovisual information for reproduction reflects a deterioration in quality in the audiovisual information for reproduction derived from the recording on the recording medium evaluated in advance. apparatus.

[5] The information conversion means includes:

An information format conversion means for converting the acquired audiovisual information into the recording audiovisual information; 5. The audiovisual information recording apparatus according to claim 4, further comprising: estimated information generating means for generating the estimated reproduction audiovisual information from the acquired audiovisual information.

[6] The apparatus further comprises second information selection means for selectively outputting one of the information selected by the first information selection means and the acquired audiovisual information to the audiovisual reproduction device. The audiovisual information recording device according to any one of claims 1 to 5.

[7] After the obtained audiovisual information is converted into audiovisual information for recording having a recording format to be recorded on the recording medium and recorded on the recording medium, the audiovisual information for recording read from the recording medium is used. An estimated information conversion step of converting the acquired audiovisual information into estimated audiovisual information for reproduction and estimated audiovisual information for reproduction;

A trial reproduction step of supplying the audiovisual information for reproduction to the audiovisual reproduction device for reproduction, and a command to be recorded on the recording medium in the recording format based on a reproduction result in the trial reproduction step; A recording step of recording the acquired audiovisual information on the recording medium in the recording format.