JP2007334945A - Recorder, converter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem: for example, an image compression technique MPEG2 adopted by BDAV is generally utilized for digital broadcast and is a widespread system, and can be used for various equipment, but since the MPEG2 records a data as it is, a data amount is large although it provides high definition, on the other hand, the image compression technique H.264 adopted by the BDMV has a high compression efficiency and can reduce a recording time and a load to capacitance, but is unfamiliar and compatible equipment is limited. <P>SOLUTION: For example, a device records, reproduces, and converts divided AV data for taking more advantage of BDAV and BDMV. Concretely, a recording and reproducing device is provided with an additional function of performing image conversion and compression/expansion according to two or more formats, and is provided with a function of determining the kind of data, and is further provided with a controller which adaptively determines the kind of data for recording/conversion/reproduction/output, and also a user IF/controller for specifying them according to user's intention or taste. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The technical field relates to an apparatus for recording, reproducing, converting, etc. data on a recording medium.

  Currently, DVD (Digital Versatile Disc) is widely used as a recording medium. In addition, as a next-generation optical disk with a large capacity, details of the standards of BD (Blu-ray Disc) and HD (High-Definition) -DVD are being discussed, and initial products have begun to be released.

  In particular, BD has a larger capacity (25 GB per layer) than HD-DVD, and conventional SD (Standard Definition: horizontal x vertical pixels are 720 x 480 (for NTSC) or 780 x 576 (for PAL)) ) Has attracted attention because it is suitable for recording HD (High Definition: horizontal × vertical pixels, for example, 1920 × 1080 or 1366 × 768) images having a larger amount of data than the image of). As such BD technology, there are, for example, Patent Documents 1 and 2.

WO2004 / 075547 JP 2006-127721 A

  With the progress of high-efficiency encoding technology, it is possible to compress AV (Audio / Visual) data as digital data in video / audio, etc., and record it on a recording medium such as a hard disk or an optical disk. As a result, AV devices such as players and recorders used for recording media such as hard disks and optical disks have become widespread. In optical discs such as DVDs used in these players and recorders, AV data is data-compressed by high-efficiency encoding technology and recorded on the disc in accordance with a predetermined format together with its management information. File systems and application formats for handling these data are also specified. In addition, next-generation optical discs with higher functionality than current optical discs can handle video data such as HD images with higher resolution than DVDs, which could only handle SD images. Different data formats are required.

  Here, the BD format defines an application format for read-only media such as movies and an application format for rewritable media such as broadcast recording. They are called BDMV (BD MoVie) format and BDAV (BD Audio / Visual) format, respectively.

  In the BDMV format, a rich interactive menu can be realized, and the picture-in-picture function and the H.264 standard defined by the ITU-T Video Coding Experts Group. Compared with the conventional DVD-Video, it is a highly functional specification, such as corresponding to high compression streams such as H.264 / AVC (Advanced Video Coding) standard. Further, the BDAV format employs a stream format compliant with the digital broadcasting standard and has a rich editing function, so that it is suitable for recording a broadcasted program.

  These formats are formulated on the assumption that they will be used independently.

  However, by supporting both formats, the advantages of each format can be provided to the user.

  The advantage of each format is that, for example, the image compression technology MPEG2 adopted by BDAV is generally used in digital broadcasting and is a popular format, and can be used in various devices. Since the data is recorded as it is, the image quality is high but the amount of data is large. Also, the image compression technology H.264 employed by BDMV. H.264 has high compression efficiency and can reduce the load on recording time and capacity. However, the diffusion rate is low and the devices that can be played back are limited. Therefore, it is thought that it is necessary to use properly according to the application. In a recording / reproducing apparatus compatible with both BDAV and BDMV, it is useful not only to record and reproduce AV data separately, but also to be able to adaptively convert between AV data according to needs.

  Therefore, for example, a recording / reproducing apparatus that further utilizes the advantages of BDAV and BDMV is provided.

  Specifically, for example, in a recording / playback device, a function for performing image conversion compression / decompression corresponding to a plurality of formats is added, a function for determining the data type, and adaptively determining a recording / conversion / playback / output data type There is provided a recording / reproducing apparatus including a control unit capable of performing a process and a user IF / control unit capable of designating them by user's arbitrary or preference.

  According to the above means, for example, the user can enjoy the advantages of a plurality of data formats.

  Hereinafter, embodiments of the present invention will be described.

  A preferred embodiment of the present invention will be described by taking a recording / reproducing apparatus as an example. However, the present invention is not limited to this embodiment. For example, the recording / reproducing apparatus may have a function of only recording, only reproduction, and only conversion.

  FIG. 1 is a block diagram showing an example of a recording / reproducing apparatus according to the present embodiment, which receives and reproduces broadcasts, records on a recording medium, reproduces data recorded on the recording medium, and reproduces and outputs the data. A possible recording / reproducing apparatus is shown. 100 is a recording / reproducing apparatus, 1011 is an input terminal for receiving a received wave from an antenna, 1012 is an analog video input terminal for inputting an analog video signal, 1013 is an analog audio input terminal for inputting an analog audio signal, 102, 103 is an analog / digital (A / D) conversion circuit that converts an analog signal into a digital signal, 104 is a demodulation circuit, 105 is a separation circuit that separates the demodulated digital signal into audio, video, subtitles, and the like, and 106 is digital Compressed / decompressed circuit for compressing / decompressing video and audio, and video, 107 for recording / reproducing system including drive function of recording medium, 1008 for encrypting data to be recorded, 109 for recording Recording / reproducing system including medium drive function, 110 is a recording medium such as a medium, 111 is encrypted and recorded on the recording medium 112 is a reproduction signal processing circuit, 113 is a compression / decompression circuit that compresses and decompresses video and audio recorded in 109, 114 is a switching circuit, and 115 is a separation circuit. Circuit, 116 is a video decoding circuit, 117 is a digital / analog (D / A) conversion circuit, 118 is a video output terminal, 119 is an audio decoding circuit, 120 is a D / A conversion circuit, 121 is an audio output terminal, and 122 is a screen. Display device, 123 user interface, 124 control unit, 125 system bus, 126 OSD generation unit, 127 communication unit for communication with external terminal, 128 communication processing unit, 129 recording on hard disk etc. Device.

  FIG. 2 is a block diagram of an embodiment of image conversion in this embodiment. Reference numeral 200 denotes a data input / output unit, 201 denotes a recording part converted / recorded in the BDAV format, 202 denotes a recording part converted / recorded in the BDMV format, and 203 denotes a data type and a conversion process necessary for the conversion process. Determining / separating unit for performing processing, 204 is a synthesizing unit for determining the type of data and conversion processing and performing processing necessary for the conversion processing, 205 is a decoder for decoding MPEG2, and 206 is a decoder for decoding compressed audio 1 (For example, AAC (Advanced Audio Coding) system), 207 is H.264. An encoder that performs H.264 encoding, 208 is an encoder that performs compressed audio 2 encoding (for example, AC-3 (Audio Code number 3) system), and 209 is an extraction / data conversion that extracts auxiliary information and converts it into data that can be combined after conversion It is a processing unit.

  FIG. 3 is a process flow diagram of an embodiment of image conversion in this embodiment. 300 is a process for inputting data, 301 is a process for designating and dividing a recording format, 302 is a process for separating data when a process that does not leave attached data in BDMV is performed, and 303 is for decoding separated compressed audio 1 Processing, 304 is processing to encode the decoded audio data into compressed audio 2, 305 is processing to decode the separated MPEG2, and 306 is H.264 of the decoded MPEG2. H.264 encoding process, 307 synthesizing those data into BDAV format, 308 separating data when BDMV leaves the attached data, 309 decoding separated compressed audio 1, 310 is a process for encoding the decoded audio data into compressed audio 2, 311 is a process for decoding the separated MPEG2, and 312 is an H.264 decoded MPEG2. H.264 encoding processing, 313 extracts the separated attached data as necessary by partial selection, etc., and converts it into another appropriate data format as necessary. A process of combining in the BDAV format, 315 is a process of recording in the recording apparatus.

The image compression technique MPEG2 adopted by BDAV is generally used in digital broadcasting and is a popular format, and can be used in various devices. Since the data is recorded as it is, the image quality is high but the amount of data is large. Also, the image compression technology H.264 employed by BDMV. H.264 has high compression efficiency and can reduce the load on recording time and capacity. However, the diffusion rate is low and the devices that can be played back are limited. Therefore, advantages and disadvantages become clear depending on the application. For this reason, for example, when it is desired to transmit in various devices in the future, the use of BDMV with a small data capacity is utilized when AV data is distributed by BDAV recording or network communication, taking advantage of the high versatility of BDAV. Is desirable. Therefore, it is useful to select one of the data formats when recording and to switch and record.
Actually, when recording is performed by the recording / reproducing apparatus, a signal transmitted and received by digital broadcasting or the like is demodulated by the demodulating circuit 104, and then the data load or bias for timing adjustment is recorded by the recording system signal processing circuit 107. After necessary signal processing is performed, the signal processing circuit 107 receives necessary signal processing again through the compression / decompression circuit 106 as necessary, and after encryption by the encryption circuit 108, Recording is performed on the recording medium 110 or the recording device 129 by the recording / reproducing system 109. The digital signal input from the digital input terminal 1012 is subjected to necessary signal processing such as timing adjustment data addition and modulation in the recording signal processing circuit 107, and passes through the compression / decompression circuit 106 as necessary. The recording system signal processing circuit 107 again receives necessary signal processing, the encryption circuit 108 encrypts the data, and the recording / reproduction system 109 records the data on the recording medium 110 or the recording device 129. Also, the analog video signal input from the analog video input terminal 1013 and the analog audio signal input from the analog audio input terminal 1014 are compressed by the compression / decompression circuit 106, and are passed through the recording system signal processing circuit 107. If necessary, the signal processing circuit 107 again receives necessary signal processing via the compression / decompression circuit 106, and after encryption by the encryption circuit 108, the recording medium 110 or recording device is recorded by the recording / reproducing system 109. 129 is recorded. At that time, a recording format is determined in the recorder signal processing circuit 107 by the user I / F via the control unit 124 or the control unit 124, and compression / decompression according to the recording format is performed in the compression / decompression circuit 106. Further, the digital data input from the communication function 125 is subjected to necessary signal processing by the recording system signal processing circuit 107 again via the recording system signal processing circuit 107 and, if necessary, through the compression / decompression circuit 106 and encrypted. After being encrypted by the circuit 108, it is recorded on the recording medium 110 or the recording device 129 by the recording / reproducing system 109.
At the time of recording, the compression / decompression circuit 106 processes the determination processing / separation unit 203, the synthesis unit 204, the decoder 205, the decoder 206, the encoder 207, and the encoder 208. In order to compress / expand the recording format determined by the recording system signal processing circuit 107 by the user I / F via the control unit 124 or the control unit 124, the format of the data input in the determination processing / separation unit 203 is determined. To determine the format, and separate as necessary (setting or user designation). In the case of recording with BDAV, it is recorded in the recording device 201 as it is. In the case of recording with BDMV, video is decoded by the decoder 205, encoded by the encoder 207, audio is decoded by the decoder 206, and encoded by the encoder 208. At that time, if necessary, the attached data including meta information such as caption information is separated by the separation unit 203, and a necessary part is extracted by the appendix data extraction / data conversion processing unit 209, and can be synthesized. Convert to format. These converted data are combined by the combining unit 204 and recorded in the recording device 202.

  In this case, the recording device / recording medium can be recorded by the same device / medium or by another device / medium. Even when other processing such as playback of AV data is performed in the recording / reproducing apparatus, recording / conversion can be performed, and a plurality of operations can be performed simultaneously or in conjunction with each other. It can also be performed automatically in a time zone where there is little operation.

  These processes are performed as shown in the process flow diagram of FIG. When recording with BDAV is designated, there is data input with the data input 300, BDAV is designated with the recording format designation 301, and recording processing is performed with the recording processing 315 as it is. When recording in BDMV without adding auxiliary information such as subtitles and dates is specified, the data input 300 has data input, and the recording format specification 301 specifies / determines that no BDMV and auxiliary information remain, and demax. 302, the data is separated into audio and video, audio information is decoded 303, compressed audio 1 is decoded, encoded 304 is encoded into compressed audio 2, video information is MPEG2 decoded by decode 305, and H.264 is encoded by encode 306. H.264 is encoded, a combining process 307 performs a combining process, a recording process 315 performs a recording process, and recording is performed. When recording in BDMV to which attached information such as subtitles and dates is added is designated / determined that there is data input in the data input 300 and that the attached information is left in BDMV in the recording format designation 301, and demax 308 The audio information is separated into audio and video, and the audio information is decoded 309 by the decoding 309, encoded by the encoding 310 into the compressed audio 2, and the video information is MPEG2 decoded by the decoding 311. The data is encoded into H.264, attribute information is extracted / re-converted as necessary by data extraction / data conversion 313 according to the user's designation, etc., synthesis processing is performed by synthesis processing 314, recording processing is performed by recording processing 315, and recording is performed. The recording format designation process 301 at this time adaptively determines and designates the user designation, AV data transmission source, and the user preference / system status according to the system.

  FIG. 4 is a block diagram of an embodiment of image conversion from BDAV to BDMV during output / communication in the present embodiment. Reference numeral 400 denotes a data output unit, 401 denotes a recording part converted / recorded in the BDAV format, 402 denotes a data type and a synthesizing unit that performs a process necessary for the conversion process, and 403 denotes a data type and a conversion process. And a determination processing / separation unit that performs processing necessary for the conversion processing. An encoder that performs H.264 encoding, an encoder that performs compressed audio 2 encoding, a decoder that performs MPEG2 decoding, a decoder that performs decoding of compressed audio 1 407, a decoder that performs 1 decoding of compressed audio, and a data that can be combined after extracting attached information and converting them. This is an extraction / data conversion processing unit for conversion.

  FIG. 5 is a block diagram of an embodiment of image conversion from BDMV to BDAV during output / communication in the present embodiment. 500 is a data output unit, 501 is an appendix data part saved in a recording device or created by user input, 502 is a recorded part converted / recorded in the BDMV format, and 503 is a judgment on data type and conversion processing. A combining unit that performs processing necessary for the conversion processing, 504 is a determination processing / separation unit that determines the type of data and the conversion processing, and performs processing necessary for the conversion processing, and 505 is the H.264 standard. An encoder that performs H.264 encoding, an encoder that performs compressed audio 2 encoding, an encoder that performs decoding of MPEG2, and a decoder that performs 1 decoding of compressed audio.

  FIG. 6 is a flowchart of an embodiment of image conversion from BDAV to BDMV during output / communication in the present embodiment. 600 is a data output / communication request process by a user or an external terminal, 601 is a process in which designated data is output from the recording portion, 602 is a process in which a recording format is designated and divided, 603 is a process in which BDMV is designated and attached data is designated Data separation processing when processing not to be performed is performed, 604 is processing for decoding separated compressed audio 1, 605 is processing for encoding decoded audio data into compressed audio 2, and 606 is processing for decoding separated MPEG 2 Reference numeral 607 denotes decoded video data as H.264. H.264 encoding processing, 608 synthesizing those data into the BDMV format, 609 data separation processing when the BDMV is specified and processing to leave attached data, 610 decodes the separated compressed audio 1 Processing, 611 encoding the decoded audio data into compressed audio 2, 612 decoding MPEG2 separated, 613 H. H.264 encoding process, 614 extracts a separate attached data as necessary, and extracts the data, and converts it into another appropriate data format if necessary. A process of combining in the BDMV format, 616 is a process of performing output / communication.

  FIG. 7 is a flowchart of an embodiment of image conversion from BDMV to BDAV during output / communication in the present embodiment. 700 is a data output / communication request process by a user or an external terminal, 701 is a process in which designated data is output from the recording portion, 702 is a process in which a recording format is designated and divided, 703 is a process in which BDAV is designated and attached data is designated Data separation processing when processing not to be performed is performed, 704 is processing for decoding separated compressed audio 2, 705 is processing for encoding decoded audio data into compressed audio 1, and 706 is separation H.264. H.264 decoding processing, 707 encoding the decoded video data into MPEG2, 708 synthesizing those data into the BDAV format, 709 performing BDAV designation and additional data attachment processing 710 is a process for decoding the separated compressed audio 2, 711 is a process for encoding the decoded audio data into the compressed audio 1, and 712 is a separated H.264 data. H.264 decoding process, 713 encoding decoded video data to MPEG2, 714 extracting separated attached data as necessary, etc., extracting and converting to another appropriate data format as necessary Data extraction / data conversion processing, 715 is processing for combining these data into the BDAV format, and 716 is processing for output / communication.

  In the recording / reproducing apparatus, at the time of reproduction, the encrypted digital data read from the recording medium 110 or the recording apparatus 129 via the recording / reproducing system 109 in accordance with a user instruction is decrypted by the decryption circuit 111. The reproduction system signal processing circuit 112 performs signal processing necessary for reproduction, such as demodulation, in a format in accordance with a predetermined modulation method. The compression / decompression circuit 113 performs compression / decompression processing as necessary, and the switching circuit 114 To the separation circuit 115. A predetermined video decoding process is performed in the video decoding circuit 116, and digital data is converted into an analog signal in the D / A conversion circuit 117, and then the monitor output of the display device 122 is output via the video output terminal 118. Is displayed. The audio decoding circuit 119 performs predetermined audio decoding processing, and after the D / A conversion circuit 121 converts digital data into an analog signal, the audio output mechanism of the display device 122 is connected via the audio output terminal 121. Is output by. Further, the attached data such as caption information is displayed together with the video information from the separation circuit 115 to the monitor output of the display device 122 through the video output terminal 118 through the OSD creation circuit.

  Further, at the time of transmission to the external terminal, processing is performed by the control unit 125 in accordance with instructions from the user and the external terminal, and the encrypted data read from the recording medium 110 or the recording device 129 via the recording / reproducing system 109 is encrypted. The digital data is unencrypted by the decryption circuit 111, subjected to signal processing necessary for transmission such as demodulation in a format in accordance with a predetermined modulation method in the reproduction system signal processing circuit 112, and is compressed / compressed as necessary. Compression / decompression processing is performed by the decompression circuit 113 and transmitted by the communication unit 127 via the communication processing unit 128.

  Determination processing / combination unit 402, separation unit 403, decoder 404, decoder 405, encoder 407, encoder 406, appendix data extraction / data conversion processing unit 408, appendix data addition processing unit 501, determination processing / synthesis unit 503, separation unit 504 The decoder 505, the decoder 507, the encoder 506, and the encoder 508 are processed by the compression / decompression circuit 106.

  Data recorded by the BDAV is recorded from the recording / reproducing system recording medium 110 or the recording device 129 in order to compress / decompress the data recorded by the BDAV into the recording format determined by the user I / F or the external terminal via the control unit 124. The data read out via the reproduction system 109 is determined by the separation unit 403 to determine the format of the data determined, and is separated according to necessity (setting or user designation). In the case of output / transmission by BDAV, output is performed as it is. In the case of output / transmission by BDMV, the determination / separation unit 403 separates the video, the video is decoded by the decoder 406, the encoder 404 is encoded, the audio is decoded by the decoder 407, and the encoder 405 is encoded. Further, the appendix data processing unit 408 extracts the appendix data appended to the data and converts it into a data format that can be combined as required by the user such as selection designation. These converted data are combined by the combining unit 402 and 400 output / transmission processing is performed.

  Data recorded by the BDMV is recorded from the recording / reproducing system recording medium 110 or the recording device 129 so as to be compressed / expanded to the recording format determined by the control unit 124, the user I / F or the external terminal via the control unit 124. The data read out via the reproduction system 109 is determined by the data format determined by the separation unit 504 to determine which format is used, and is separated according to necessity (setting or user designation). In the case of output / transmission by BDMV, output is performed as it is. In the case of BDAV output / transmission, the determination / separation unit 504 separates the video, the video is decoded by the decoder 507, the encoder 505 encodes the audio, the audio is decoded by the decoder 508, and the encoder 506 encodes it. In addition, the appendix data processing unit 501 creates appendix data from data recorded as necessary, such as a user's selection designation, or user input, and converts it into a data format that can be combined. These converted data are combined by the combining unit 503 and 500 output / transmission processes are performed.

  In this case, the recording device / recording medium can be recorded by the same device / medium or by another device / medium. Even when other processing such as playback of AV data is performed in the recording / reproducing apparatus, recording / conversion can be performed, and a plurality of operations can be performed simultaneously or in conjunction with each other. It can also be performed automatically in a time zone where there is little operation.

  These processes are performed as shown in the process flow diagram of FIG. 6.7. Processing when the designated data is BDAV is processed as shown in the processing flowchart of FIG. In the case of BDAV output, a data output request is made in the data output request processing 600, the corresponding BDAV data is output from the recording portion, and the format format specified by the recording format specification / determination processing unit 602 is determined or the recording format is determined. do. When BDAV is designated / determined, the data output process 616 is performed as it is. When the recording format designation / determination processing unit 602 designates / determines that no appendix data is left in the BDMV, the data is separated into audio and video by the demux 603, the audio information is decoded by the decode 604, and the compressed audio 1 is decoded. The encoded audio data is encoded into the compressed audio 2 by the encoding 605, the video information is MPEG2 decoded by the decoding 606, and the H.264 is encoded by the encoding 607. The data is encoded into H.264, the combining process 608 performs the combining process, and the data output process 616 is performed. When recording format designation / determination processing unit 602 designates / determines recording in BDMV to which additional information such as subtitles and dates is added, data is separated into audio and video by demux 609, and audio information is decoded by 610. Compressed audio 1 is decoded, encoded to Compressed audio 2 by encoding 611, video information is MPEG2 decoded by decoding 612, and H.264 is encoded by encoding 613. The data is extracted into H.264, and attribute information is extracted / re-dataed as necessary by data extraction / data conversion 614 as required by the user. The recording format designation / determination processing 602 at this time adaptively determines and designates the user designation, the AV data transmission source, and the user preference / system status according to the system.

  The processing when the designated data is BDMV is processed as shown in the processing flowchart of FIG. In the case of BDMV output, a data output request is made in the data output request processing 700, the corresponding BDMV data is output from the recording portion, and the format format specified by the recording format specification / determination processing unit 702 is determined or the recording format is determined. do. When BDMV designates / determines output / transmission, data output processing 716 is performed as it is. When the recording format designation / determination processing unit 702 designates / determines that no appendix data is to be left in the BDMV, the data is separated into audio and video by the demux 703, the audio information is decoded by the decode 704, and the compressed audio 2 is decoded. The encoded audio data is encoded by the encoding 705, and the video information is decoded by the decoding 706 in the H.264 format. H.264 decoding, encoding 707 to MPEG2, encoding processing 708 for synthesis processing, and data output processing 716. When recording format designation / determination processing unit 702 designates / determines recording in BDAV to which additional information such as subtitles and dates is added, data is separated into audio and video by demux 709 and audio information is decoded by 710. The compressed audio 2 is decoded, encoded to compressed audio 1 by the encode 711, and the video information is decoded to H.264 by the decode 712. H.264 decoding, encoding to MPEG2 with an encoding 713, and appendix data addition processing 614 to convert the attribute information into a format that can be extracted and synthesized from a recorded portion or creation by the user as required by the user's designation, etc. Then, a synthesis process is performed and a data output process 716 is performed. The recording format designation / determination processing 702 at this time adaptively determines and designates the user designation, the AV data transmission source, and the user preference / system status according to the system.

  FIG. 8 is a block diagram of an embodiment of image conversion from BDAV to BDMV at the time of conversion in the present embodiment. 800 is a data input / output unit, 801 is a recording part recorded in the BDAV format, 802 is a recording part recorded in BDMV, and 803 is a determination processing / separation unit that performs conversion processing and performs processing necessary for conversion 804, a determination processing / synthesizing unit that performs a process necessary for the conversion, 805 is a decoder that performs MPEG decoding, 806 is a decoder that performs code using compressed audio 1, and 807 is an H.264 decoder. An encoder that performs H.264 encoding, an encoder that performs compressed audio 2 encoding, and an extraction / data conversion processing unit 809 that extracts appendix information and converts it into data that can be combined after conversion.

  FIG. 9 is a block diagram of an embodiment of image conversion from BDMV to BDAV at the time of conversion in the present embodiment. 900 is a data input / output unit, 901 is a recording portion recorded in the BDMV format, 902 is a recording portion recorded in BDAV, and 903 is a determination processing / separation unit that determines conversion processing and performs processing necessary for conversion 904, a determination process / composition unit that performs a determination on the conversion process and performs a process necessary for the conversion. H.264 decoder, 906 decoder for compressed audio 2 decoding, 907 encoder for MPEG4 encoding, 908 encoder for 1 compressed audio encoding, 909 appendix created from recording part and user input creation etc. This is an extraction / data conversion processing unit that extracts information and converts it into data that can be combined after conversion.

  When the recording data is changed, the control unit 125 performs processing in accordance with personal matters from the user, the external terminal, and the terminal setting, and the encrypted digital data read from the recording medium 110 or the recording device 129 via the recording / reproducing system 109 Is decoded / decompressed in a desired format by the compression / decompression circuit 113 or 106 via the reproduction system signal processing circuit 112 decoded by the decoding circuit 111, and necessary modulation processing is performed by the recording system signal processing circuit 107. After being applied and encrypted by the encryption circuit 108, it is recorded on the recording medium 110 or the recording device 129 by the recording / reproducing system 109.

  These processes are the same as the flow of FIGS. This can be realized by performing the processing of output processing 616 and 716 in each drawing as recording processing to a recording medium / recording apparatus. It is also possible to take backup during conversion processing in another recording medium / recording apparatus or the same recording medium / recording apparatus.

  In this case, the recording device / recording medium can be recorded by the same device / medium or by another device / medium. Even when other processing such as playback of AV data is performed in the recording / reproducing apparatus, recording / conversion can be performed, and a plurality of operations can be performed simultaneously or in conjunction with each other. It can also be performed automatically in a time zone where there is little operation.

  According to the above embodiment, for example, reproduction and editing on a plurality of recording media can be facilitated by adaptively using the advantages (capacity, general-purpose (compatibility)) of a plurality of data formats.

The block diagram which shows an example of the recording / reproducing apparatus by a present Example Block diagram of an embodiment of image conversion in this embodiment Processing flow diagram of image conversion embodiment in this embodiment Block diagram of an embodiment of image conversion from BDAV to BDMV during output / communication in this embodiment Block diagram of an embodiment of image conversion from BDMV to BDAV during output / communication in this embodiment Flow chart of an embodiment of image conversion from BDAV to BDMV during output / communication in this embodiment Flow chart of an embodiment of image conversion from BDMV to BDAV during output / communication in this embodiment The block diagram of the Example of the image conversion from BDAV to BDMV at the time of the conversion process in a present Example The block diagram of the Example of the image conversion from BDMV to BDAV at the time of the conversion process in a present Example

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Recording / reproducing apparatus 1011 ... Antenna input 1012 ... Digital input 1013 ... Analog video 1014 ... Analog audio | voice 102 ... Analog / digital (A / D) conversion circuit 103 ... Analog / digital (A / D) conversion circuit 104 ... Demodulation circuit 105 ... separation circuit 106 ... compression / expansion circuit 107 ... recording system signal processing circuit 108 ... encryption circuit 109 ... recording / reproduction system 110 ... recording medium 111 ... decryption circuit 112 ... reproduction system signal processing circuit 113 ... compression / expansion circuit 114 ... Switching circuit 115 ... Separation circuit 116 ... Decoding circuit 117 ... Digital / analog (D / A) conversion circuit 118 ... Output terminal 119 ... Decoding circuit 120 ... Digital / analog (D / A) conversion circuit 121 ... Output terminal 122 ... Display device 123 ... User I / F
124 ... Control unit 125 ... System bus 126 ... OSD generation unit 127 ... Communication unit 128 ... Communication processing unit 129 ... Recording device 200 ... Input / output unit 201 ... BDAV recording unit 202 ... BDMV recording unit 203 ... Separation unit 204 ... Composition unit 205 ... MPEG2 decoder 206... Compressed audio 1 decoder 207. H.264 encoder 208 ... compressed audio 2 encoder 209 ... appendix data extraction / data conversion unit 300 ... data input process 301 ... recording format designation / determination process 302 ... demax 303 ... decode process 304 ... encode process 305 ... decode process 306 ... encode process 307 ... Composition process 308 ... Demax 309 ... Decode process 310 ... Encode process 311 ... Decode process 312 ... Encode process 313 ... Data extraction / data conversion process 314 ... Synthesis process 315 ... Recording process 400 ... Data output unit 401 ... BDAV recording unit 402 ... Combining unit 403... Separating unit 404. H.264 encoder 405 ... compressed audio 2 encoder 406 ... MPEG2 decoder 407 ... compressed audio 1 decoder 408 ... Appendix data extraction / data conversion unit 500 ... data output unit 501 ... BDMV recording unit 502 ... synthesis unit 503 ... separation unit 504 ... MPEG2 encoder 505 ... Compressed voice 1 encoder 506 ... H. H.264 decoder 507... Compressed audio 2 decoder 508 .. appendix data generation unit 600... Data output request process 601.
602 ... Recording format designation / determination 603 ... Demax process 604 ... Decode process 605 ... Encode process 606 ... Decode process 607 ... Encode process 608 ... Synthesis process 609 ... Demax 610 ... Decode process 611 ... Encode process 612 ... Decode process 613 ... Encode process 614 ... Appendix data extraction / data conversion process 615 ... Composition process 616 ... Data output process 700 ... Data output request process 701 ... Data output process
702 ... Recording format designation / determination 703 ... Demax processing 704 ... Decoding processing 705 ... Encoding processing 706 ... Decoding processing 707 ... Encoding processing 708 ... Synthesis processing 709 ... Demax 710 ... Decoding processing 711 ... Encoding processing 712 ... Decoding processing 713 ... Encoding processing 714 ... Appendix data creation / addition processing 715 ... Synthesis processing 716 ... Data output processing 800 ... Data input / output unit 801 ... BDAV data recording unit 802 ... BDMV data recording unit 803 ... Separation unit 804 ... Synthesis unit 805 ... MPEG2 decoder 806 ... Compressed audio 1 decoder 807. H.264 encoder 808 ... compressed audio 2 decoder 809 ... appendix data extraction / data conversion unit 900 ... data input / output unit 901 ... BDMV data recording unit 902 ... BDAV data recording unit 903 ... separation unit 904 ... synthesis unit 905 ... 264 decoder 906... Compressed audio 2 decoder 907... MPEG2 encoder 908... Compressed audio 1 decoder 909.

Claims (10)

A recording device for recording data on a recording medium, an input unit for receiving broadcast data,
A recording apparatus comprising: a recording switching unit that switches whether the broadcast data input by the input unit is recorded in the first format or the second format. The recording apparatus according to claim 1,
The first format is a BDMV format, and the second format is a BDAV format. The recording device according to claim 2,
When the switching unit is switched to record in the BDMV format, the broadcast data is decoded by MPEG2, and the H.264 of the BDMV system is decoded. A compression unit for encoding with H.264 is included. The recording device according to claim 3,
When the switching unit is switched to record in the BDMV format by the switching unit, the compression unit separates the appendix data and the video / audio information included in the broadcast data, and compresses each in the BDMV format. The recording apparatus according to any one of claims 1 to 4,
It has an instruction reception unit that receives instructions from users,
The switching unit performs switching based on an instruction received by the instruction receiving unit. The recording device according to any one of claims 1 to 5,
The recording medium is a Blu-ray disc. A conversion device for converting information stored in a recording medium,
A conversion device that converts information stored in a recording medium into a BDMV format. The conversion device according to claim 7, comprising:
The recording medium is a Blu-ray disc,
Information recorded on the Blu-ray disc is in BDAV format. A conversion device for converting information stored in a recording medium,
A conversion device that converts information stored in a recording medium into a BDAV format. The conversion device according to claim 9, comprising:
The recording medium is a Blu-ray disc,
Information recorded on the Blu-ray disc is in the BDMV format.

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