CN109844860B

CN109844860B - Disc recording method, disc reproducing method, disc recording apparatus and disc reproducing apparatus

Info

Publication number: CN109844860B
Application number: CN201780064363.3A
Authority: CN
Inventors: 永井裕
Original assignee: Hitachi LG Data Storage Inc
Current assignee: Hitachi LG Data Storage Inc
Priority date: 2016-11-28
Filing date: 2017-09-27
Publication date: 2021-01-19
Anticipated expiration: 2037-09-27
Also published as: JP2020024771A; WO2018096779A1; CN109844860A

Abstract

In order to reproduce a disc on which a high-quality video signal is recorded at an optimum disc rotation speed in disc recording of a high-quality video broadcast signal, the present invention is a recording method using a recording type disc on which a digital video signal can be recorded, the method including: the method includes the steps of recording a received video signal as user data on a recording disc, detecting a maximum transfer rate for reproduction from a data stream of the received video signal, obtaining reproduction transfer rate setting information from the maximum transfer rate, and recording the reproduction transfer rate setting information as disc definition information.

Description

Disc recording method, disc reproducing method, disc recording apparatus and disc reproducing apparatus

Technical Field

The present invention relates to a recording method and a recording apparatus for an information recording medium, and a reproducing method and a reproducing apparatus for reproducing information from an information recording medium.

Background

As a background art of the present invention, for example, patent document 1 is known. Patent document 1 describes "for example, in an information recording and reproducing apparatus equipped with a large-capacity storage device such as a hard disk, library construction on the hard disk is performed at high speed, and program information recorded on the hard disk in the high-speed recording is permitted to be reproduced, thereby improving convenience. ".

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2002-269911

Disclosure of Invention

Problems to be solved by the invention

Conventionally, in a blu-ray disc, which is an optical disc developed from a DVD, an HD video signal is recorded in a CLV (constant linear velocity) system. Further, a technique of reproducing such CLV-recorded optical discs in a CAV (constant rotation speed) manner is widely and generally used. The reproduction ratio in this case becomes higher from the inner periphery to the outer periphery with the radius. When a video signal is to be associated with a signal up to a resolution of 4K2K or a resolution of 8K4K in such a system, it is necessary to increase the rotation speed of the optical disc as the transmission rate of the video signal increases. When the rotational speed is increased, noise is generated, and a small-sized device does not reach a desired rotational speed due to insufficient torque of the engine, and the time required to reach the desired rotational speed increases. Patent document 1 describes a technique for recording and reproducing data on and from an HDD (hard disk drive), but the video data sizes of 4K2K resolution and 8K4K resolution are much larger than those of the music data in patent document 1, and the time required for recording data on an optical disk on the HDD increases, and the capacity required of the HDD increases significantly.

Means for solving the problems

The above-described problem is solved by a recording method for a recording type disk capable of recording a digital video signal, comprising: recording the received video signal as user data on a recording disc; detecting a maximum transmission rate at the time of reproduction from a data stream of the received video signal; obtaining reproduction transmission rate setting information from the maximum transmission rate; and a step of recording the reproduction transfer rate setting information as disc definition information.

Effects of the invention

According to the present invention, it is possible to record a high-quality signal so that the signal can be reproduced at an optimum rotation speed, and it is possible to provide a device that can reproduce a high-quality video signal with low noise.

Drawings

Fig. 1 is a block diagram showing an embodiment of a recording and reproducing apparatus for an optical disc.

Fig. 2 is an explanatory diagram showing a disc format and a recording method according to the disc format as an embodiment of an optical disc.

Fig. 3 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 4 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 5 is an explanatory diagram of an example of control data in a disc format as an embodiment of an optical disc.

Fig. 6 is an explanatory diagram of an example of control data in a disc format as an embodiment of an optical disc.

Fig. 7 is a flowchart showing an embodiment of a recording method of an optical disc.

Fig. 8 is a flowchart showing an embodiment of a recording method of an optical disc.

Fig. 9 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 10 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 11 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 12 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 13 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 14 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 15 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 16 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 17 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 18 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 19 is a flowchart showing an embodiment of a recording method of an optical disc.

Fig. 20 is a flowchart showing an embodiment of a recording method of an optical disc.

Fig. 21 is a flowchart showing an embodiment of a recording method of an optical disc.

Fig. 22 is an explanatory diagram showing a disc format and a recording method according to the disc format as an example of the optical disc.

Fig. 23 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 24 is an explanatory diagram of a disc format as an embodiment of an optical disc.

Fig. 25 is a flowchart showing an embodiment of a recording method of an optical disc.

Fig. 26 is a block diagram showing an embodiment of a reproduction apparatus for an optical disc.

Fig. 27 is a flowchart showing an embodiment of a reproducing method of an optical disc.

Fig. 28 is a flowchart showing an embodiment of a reproduction method of an optical disc.

Fig. 29 is a block diagram showing an embodiment of a recording and reproducing apparatus for an optical disc.

Fig. 30 is an explanatory diagram showing an example of a recording method for an optical disc.

Fig. 31 is an explanatory diagram showing an example of a recording method of an optical disc.

Fig. 32 is an explanatory diagram showing an example of a recording method of an optical disc.

Fig. 33 is a flowchart showing an example of a data erasing method for an optical disc.

Fig. 34 is a flowchart showing an embodiment of a reproduction method of an optical disc.

Fig. 35 is an explanatory diagram showing an example of a recording method of an optical disc.

Detailed Description

The following describes embodiments of the present invention.

An embodiment of a recording and reproducing apparatus according to the present invention will be described with reference to fig. 1. Fig. 1 is a block diagram of the recording and reproducing apparatus of the present embodiment, where 101 denotes an optical disk for recording and reproduction, 102 denotes a disk motor for rotating the optical disk 101 for recording and reproduction, and 103 denotes an optical pickup for detecting a reproduction signal from the optical disk 101 for recording and reproduction at the time of reproduction and emitting a laser pulse for writing at the time of recording. Reference numeral 104 denotes an analog front end section for performing amplification, equivalent processing, and the like on a signal detected by the optical pickup 103.

105 is a decoding processing unit which performs demodulation processing and error correction processing in accordance with modulation processing and error correction code generation processing at the time of recording with respect to the output of the analog

front end unit

104, 112 is a tuner which receives broadcast waves, 125 is a hard disk drive which records packetized (packetized) AV streams (Audio and Video streams) of broadcast waves reproduced by the tuner, 106 is a selection processing unit which selects either the packetized AV Stream output from the tuner 112, the packetized AV Stream output from the hard disk drive 125, or the packetized AV Stream output from the

decoding processing unit

105, 107 is a de-packetizing processing unit which opens the packets of the packetized AV Stream selected by the

selection processing unit

106, 108 is a demultiplexer which separates Audio signals multiplexed in the de-packetized AV Stream from Video signals, and 113 extracts additional information from the de-packetized AV Stream, And detecting and judging the maximum transmission rate in the data packetization state. Reference numeral 109 denotes an AV decoding processing unit which performs decoding processing on the audio signal and the video signal separated by the demultiplexer 108 in accordance with their respective compression modes, 110 denotes a port processing unit and an output terminal for outputting the audio signal subjected to the AV decoding processing by the AV

decoding processing unit

109, and 111 denotes an interface processing unit and an output terminal for outputting the video signal subjected to the AV decoding processing by the AV decoding processing unit 109. 110 and 111 are merged according to the interface mode. Reference numeral 117 denotes an input terminal and an interface processing unit for inputting an audio signal, reference numeral 116 denotes an input terminal and an interface processing unit for inputting a video signal, and

reference numerals

116 and 117 are combined according to an interface system. Reference numeral 118 denotes an AV encoding processing unit that compresses the audio signals and video signals input from the

respective units

116 and 117, 119 denotes a multiplexer that multiplexes the audio signals and video signals compressed by the AV encoding processing unit, and 120 denotes a packet processing unit that packetizes the video signals and audio signals multiplexed by the multiplexer. The above-described 113 also detects and determines the maximum transmission rate of the AV stream in the packetized state from the output of the packet processing unit 120. Reference numeral 114 denotes a disc management information detection unit which reads the TDDS (temporary disc definition structure) immediately before as a rule recorded on the disc 101. The TDDS includes information related to the alternation process and information related to the range of data recorded in time series, the maximum transmission rate thereof in the case of recording an AV stream, and the like. The TDDS is described in detail below with reference to fig. 9 and 10. Reference numeral 115 denotes a TDDS generation unit which updates the immediately preceding TDDS detected by the disc management information detection unit 114, based on information on newly recorded data. The maximum transfer rate information is generated from the maximum transfer rate specification value in the packetized state of the AV stream detected and judged by 113 and the maximum transfer rate specification value recorded in the previous TDDS. Reference numeral 121 denotes a selection processing unit which selects a packetized AV stream output from the tuner 112 when a broadcast is recorded directly on the disc 101 as user data, selects a packetized AV stream output from the hard disk drive 125 when the broadcast is temporarily recorded on the hard disk drive 125 and then copied to the disc 101, selects a packetized AV stream output from the recording packet processing unit 120 when signals input from the terminals and the

interfaces

117 and 116 are recorded on the disc 101, and selects an output from the TDDS generation processing unit 115 at a predetermined timing when disc management information is recorded. In the case where the tuner 112 or the hard disk drive 125 is selected, it is repackaged as necessary in a manner suitable for recording of the disk 101, although not shown in the drawing. When the tuner 112 or the hard disk drive 125 is selected, the respective outputs are transmitted to the selection processing unit 106 and the decapsulation packet processing unit 107 to the selection processing unit 113, and maximum transmission rate detection determination is performed. Reference numeral 122 denotes an encoding processing unit which performs error correction code addition processing and modulation processing on the output of the selection processing unit 121. The optical pickup 103 emits a writing laser pulse in accordance with the output of the encoding processing section. Reference numeral 123 denotes a servo processing unit which controls the optical pickup 103 to perform focus control and tracking control, and also performs rotation control of the disk motor 102. Reference numeral 124 denotes a CPU, which controls the operation of each unit of the recording and reproducing apparatus.

In addition, in fig. 1, the mechanism portions of 101, 102, and 103 and the terminal portions of 110, 111, 117, and 116 can be realized by circuits other than the circuit.

Next, an outline of the operation of the recording and reproducing apparatus shown in fig. 1 is shown with reference to fig. 2. Fig. 2 shows the lower side of each region of the disk 101 of fig. 1 as the inner periphery and the upper side as the outer periphery, and shows the processing for each region. Fig. 2 shows a case where the disc 101 is a 1-time recording disc. When a broadcast is recorded directly on the disc 101 as user data, the packetized AV stream output from the tuner 112 is written in the data area of the disc sequentially from the inner periphery side by the encoding processing unit 122. For example, in the first recording to the disc, the data is recorded at a location indicated as the first recorded data. After the recording of the AV stream is completed, the maximum transfer rate specification value 1 detected by 113 in fig. 1 is written in a Temporary Disc Management Area (TDMA) by the encoding processing unit 122, along with information on the alternation process and information on the range of the data recorded in time series, using the TDDS1 as a part of the temporary disc management structure (TDMS 1). In the case of the 2 nd recording, that is, the 1 st additional recording, the AV stream is recorded in the 1 st location of the additional recording in the data area of the disc by the encoding processing unit 122. After the recording of the AV stream is completed, the maximum transfer rate specification value 2 detected by 113 in fig. 1 is set from the maximum transfer rate specification value 1 recorded in the TDDS1 and the detected maximum transfer rate specification value 2 so that the maximum transfer rate for the entire data obtained by combining the first recorded data and the additional recording 1 st data becomes the maximum transfer rate specification value 2', and the TDDS1 which is a part of the TDMS2 is written in the TDMA by the encoding processing unit 122 together with the information on the alternation process and the information on the range of the data recorded in time series. When the above-described processing is repeated and the 3 rd time of additional recording runs out of the data area of the disc, the maximum transfer rate set value for all the data recorded on the disc is recorded in the TDDS 4. Since the TDDS is updated every additional recording even when the disc is taken out after each recording, the maximum transfer rate setting value for all data on the disc is always recorded in the final TDDS. In addition, in the case of performing finalization processing for improving compatibility of a recorded disc, a Disc Definition Structure (DDS) in which a TDDS updated last is a part of a Disc Management Structure (DMS) is copied to a Disc Management Area (DMA).

As described above, the recording and reproducing apparatus according to the present embodiment shown in fig. 1 and shown in fig. 2 can update the maximum transfer rate specification value for all data recorded on the disc for every record, and therefore can reproduce the data at the minimum rotational speed required when reproducing the disc. Further, since the maximum transfer rate predetermined value is recorded as a part of the TDDS which is updated without depending on the type of data when the additional recording is completed, it is possible to provide a system having high affinity for various data processing such as a case where digital data or the like in which the maximum transfer rate is not required to be recorded is mixed.

Next, the structure of the TDMA used in the description of fig. 2 will be described with reference to fig. 3. As described above, the TDMA is updated in units of TDMS every additional recording. The TDMS includes a temporary defect list (TDFL) which is a table indicating a correspondence relationship when data determined to be defective is transferred to a replacement area, Sequential Recording Range Information (SRRI) which is a table describing a range of data recorded in time sequence, and a TDDS which includes position information of the TDFL and SRRI and a maximum transfer rate specification value. The TDDS will be described in detail below with reference to fig. 9 and 10. In the case where the decimal part is generated in the information amount of the TDFL, SRRI, 00 data is filled therebetween.

Next, the SRRI used in the description of fig. 3 will be described with reference to fig. 4. The Data Area (Data Zone) is divided into a replacement Area (SA) and a User Data Area (User Data Area) illustrated in fig. 3. The User Data Area can be divided into n (n: natural number) time Series Recording Ranges (SRRs). The SRRs are required to record data in time series. Further, each SRR can be divided into two parts, i.e., backward and forward. The SRRI is configured based on a table indicating the range of each SRR. SRR is an effective way to update file systems, and in particular management information of file systems.

Fig. 5 and 6 show examples of a position on the radius of the optical disc of the pickup and a transfer rate of a signal to be reproduced, and a predetermined value recorded as a maximum transfer rate in TDDS and a position on the radius of the optical disc, when reproducing from a disc recorded in a CLV (constant linear velocity recording) system such as a blu-ray disc in a CAV (constant rotational velocity) system. Fig. 5 shows an example of 25GB per 1 layer, and fig. 6 shows an example of 33GB per 1 layer. The shortest mark length of 149nm, the track pitch of 0.32 μm, the modulation scheme of 17PP, and the error correction code described later can be applied to 25GB per 1 layer. The shortest mark length of 149nm, the mark length of 0.32 μm, the modulation scheme of 17PP, and the error correction code, which will be described later, can be applied to 33GB per 1 layer. In fig. 5 and 6, a thin solid line indicates a relationship between a position on the radius of the optical disc and a transmission rate of a reproduced signal in the case of stationary rotation at 5000rpm, and a thin two-dot chain line indicates a relationship between a position on the radius of the optical disc and a transmission rate of a reproduced signal in the case of stationary rotation at 5000- α rpm which is a numerical value of 5000rpm or less. The maximum transmission rate in this figure is a fixed margin with respect to the transmission rate of the packetized AV stream, with reference to the output of the decoding processing unit 105 in fig. 1. The thick dotted line, the thick solid line, and the thick two-dot chain line indicate the maximum transmission rate specification for each position when 3 kinds of values are selected as the predetermined values for recording the TDDS as the maximum transmission rate. In fig. 5, the full area of the optical disk with thick solid lines is 92Mbps, the full area of the optical disk with thick dotted lines is 92-C Mbps, which is a numerical value of 92Mbps or less, the inner side of the inner circumference a of the optical disk with thick two-dot chain lines is 92Mbps, and the outer circumference side of the optical disk with thick two-dot chain lines is 122+ B Mbps. In fig. 6, all areas of the optical disk with thick solid lines are 122Mbps, all areas of the optical disk with thick dotted lines are 122-D Mbps with a numerical value of 122Mbps or less, the inner side from the B point on the inner circumference side of the optical disk with thick two-dot chain lines is 122Mbps, and the outer circumference side from the B point is 122+ B Mbps. As shown in fig. 5 and 6, in the case where the specification of the maximum transfer rate is a thick dotted line, if reproduction is performed at a constant rotational speed of 5000- α rpm, the maximum transfer rate specification can be satisfied in all areas of the disc. Further, as shown in fig. 5 and 6, when the specification of the maximum transfer rate is a thick solid line, if reproduction is performed at a constant rotational speed of 5000rpm, the maximum transfer rate specification can be satisfied in all areas of the disc. Further, as shown in fig. 5 and 6, in the case where the specification of the maximum transfer rate is a thick two-dot chain line, the specification value of the maximum transfer rate changes depending on the position, and therefore the complexity of the processing increases, but if reproduction is performed at the same constant rotational speed of 5000rpm, recording of an AV stream at a higher maximum transfer rate of 122+ B Mbps than in the case of the thick solid line can be achieved at the same rotational speed on the basis that the specification of the maximum transfer rate can be satisfied in all areas of the disc. In this example, 3 kinds of predetermined values of the maximum transmission rate are adopted, but it is needless to say that the number of revolutions can be more optimally controlled if the kinds are further increased. Although torque characteristics of a small spindle motor used in a thin optical disc drive with a rotation speed as exemplified in the present embodiment are optimal, the optimal value is not limited to this value depending on the range of the transmission rate in the target broadcast system.

Next, an example of the recording method of the present embodiment will be described with reference to fig. 7. Fig. 7 is a flowchart of the recording method of the present embodiment. In fig. 7, 700 denotes the start of the processing, and 701 denotes the detection and determination of the maximum transmission rate of the packetized AV stream of the input broadcast program by 113 in fig. 1. The broadcast program whose maximum transmission rate is determined is detected and recorded as a packetized AV stream on an optical disk (702). The processes of 701 and 702 are repeated until the end of the broadcast program. When recording on the disc is completed, a verification process of the recorded data is performed (704), an alternation process of rewriting data is performed in the replacement area as necessary (705), and a TDFL indicating the destination of movement of the result of the alternation process is generated (706). This flowchart is executed 704, 705, and 706 after the recording is completely completed, but may be executed at any time during the recording of the disc depending on the system. The TDDS (n-1), i.e., the TDDS (707) related to the data recorded before the recording process 702 is read, 708 generates a maximum transfer rate specification value for the packetized AV stream for the entire disc from the newly recorded maximum transfer rate specification value for the packetized AV stream detected and judged at 701 and the maximum transfer rate specification value for the packetized AV stream recorded before the recording process 702 contained in the TDDS (n-1). 709 generates tdds (n) other than the maximum transfer rate, and 710 performs editing processing for adding the maximum transfer rate specification value for the packetized AV stream to the tdds (n) generated at 709. The TDDS (n) after the editing process of 710 is additionally recorded on the disk 711. The additional recording process (712) of TDDS (n) is completed.

As described above, the recording method of the present embodiment can update the maximum transfer rate specification values for all data recorded on the disc for every record, and therefore, when the disc is reproduced, the disc can be reproduced at the minimum rotational speed required. Further, since the maximum transfer rate predetermined value is recorded as a part of the TDDS which is updated without depending on the type of data when the additional recording is completed, it is possible to provide a system having high affinity for various data such as a case where digital data or the like which does not need to be recorded at the maximum transfer rate is mixed.

Next, a detailed example of the case where the numerical example of fig. 5 is used for the detection determination process of the maximum transmission rate of the packetized AV stream of the broadcast program input in 701 of the flowchart of fig. 7 is shown in the flowchart of fig. 8.

In fig. 8, 800 denotes the start of processing, and 801 denotes the detection of the maximum transmission rate information detX of the packetized AV stream. It is determined whether or not the detected maximum transmission rate information detX is 92-C Mbps or less (802), and if it is 92-C Mbps or less, it is determined that the predetermined value of the maximum transmission rate is 92-C Mbps (803). When it is determined that the maximum transmission rate is not 92-C Mbps or less, it is further determined whether the maximum transmission rate is 92Mbps or less (804), and if the maximum transmission rate is 92Mbps or less, it is determined that the predetermined value of the maximum transmission rate is 92Mbps (805). When it is judged that the data is not 92Mbps or less, it is further judged whether the data is 122+ B Mbps or less (806), and if the data is 122+ B Mbps or less, it is judged whether the write position is on the inner peripheral side of the A site (807), and if the data is on the inner side, the data is moved to the outer peripheral side of the A site or more (808), and then the predetermined value of the maximum transmission rate is judged to be 122+ B Mbps (809), and the processing is normally ended (811). If 806 determines that the data is not 122+ B Mbps or less, it is determined that normal playback is not possible even in the case of immediate writing, and an abnormal termination process is performed (810).

As described above, according to the processing shown in the flowchart, the sorted predetermined value as shown in fig. 5 is obtained from the maximum transfer rate information detected from the AV stream, and the processing is easy even when the TDDS is easily recorded and reproduced as the control information.

Next, an example of the data structure of the TDDS used in the present invention is shown with reference to fig. 9 and 10. Fig. 9 shows an example of the configuration of the TDDS applied to 1) a case where it is not necessary to select the most appropriate rotation speed (the faster the rotation speed is), which is the most appropriate rotation speed (the rotation speed which does not cause a problem such as torque) for processing using a recording/reproducing apparatus which performs recording/reproducing such as video with only 2K1K resolution and does not require high transfer rate, and 2) a case where it is not necessary to select the most appropriate rotation speed (the rotation speed which does not cause a problem such as torque). Fig. 10 shows an example of the structure of the TDDS in a case where the optimum rotation speed is preferably selected, for example, when the TDDS is applied to 3) images with 4K2K resolution or 8K4K resolution.

In fig. 9 and 10, the TDDS identification information is identification information for identifying that this is TDDS information, and the defect list location information indicates the location of the defect list when the TDFL is copied in the DMS illustrated in fig. 2. Each area position information is information on the position of the user data area and the area used for adjustment. The replacement area related information is information related to the replacement area, such as the size of the replacement area. The user data recording final position information indicates a final position of the user data written in the user data area. The additional TDMA size is information associated with the size of the TDMA. The next usable adjustment area position information is information on the position of an area related to the next usable adjustment, the temporary defect list position information is information indicating the recording position of the TDFL, and the position information of the SRR information is information on the recording position of the SRRI. The form and configuration of the above-described information are common in fig. 9 and 10. The information is basically filled with 00 data in addition to the storage location as a reserve (reserve) process. In fig. 10, further, a UHDS identification code and a maximum transmission rate regulation value, which are information indicating that this is about an AV stream of 4K2K resolution or higher, are recorded using a part of the location of the reservation processing. In fig. 9 and 10, 1 sector indicates that the size of data is 2048 bytes.

By specifying the structure of the TDDS in this way, it is possible to mix 1) backup of PC data and 3)4K2K resolution and 8K4K resolution video on the same disc, and it is possible to reproduce 1) backup of PC data and the like without any problem even with a device that is mixed with 1)2) and only corresponds to 1) 2). Similarly, the device 1)2) corresponding to only 1)2) can be used for the creation of the mixed disk 1)2)3) and the mixed disk 1)2)3) to reproduce the mixed disk 1). Further, the information shown in fig. 9 includes information that needs to be updated at the end of recording, and the processing that can update the maximum transfer rate specification value that needs to be updated for each recording process by recording the maximum transfer rate specification value with the configuration shown in fig. 10 can also improve the commonality in terms of timing. Therefore, it is easy to realize only the recording and reproducing apparatus corresponding to 1)2) and the recording and reproducing apparatus corresponding to 1)2)3) at the same time.

Next, an encoding process for user data will be described. As shown in fig. 11, 32 error detection codes are added to data divided into 2048-byte units (sectors) and the data are rearranged in a concentrated manner, and each column of 216-row 304-column data is encoded by a reed solomon Code of (248, 216, 32), and 32-byte parity bits are added to constitute a Long Distance Code (LDC) data block of 248-row 304-column data. The LDC data block is rearranged to form a block of 496 rows and 152 columns, and BIS (Burst Indicating codeword) data is inserted into 38 columns of BIS (Burst Indicating codeword) user data including address information, user control data, and parity bits in the data block, and a synchronization signal (Sync) is added to each column to form a physical cluster (physical cluster) as shown in fig. 12.

Fig. 13 is a diagram showing a minimum unit of recording, and a configuration is adopted in which Run-in and Run-out are added before and after 1 physical cluster for the purpose of reproduction of a synchronous clock or the like. The data block structure and the recording minimum unit of data are the same in both the user data area and the TDMA.

Fig. 14, 15, and 16 are diagrams showing configuration examples of the TDMS described in fig. 3.

Fig. 14 shows a case where the TDMS is composed of TDFL and TDDS, where m is an integer of 1 or more and n is an integer of 0 or more. m is increased or decreased according to the size of the table indicating the alternation process, and n is selected so that m + n +1 is a multiple of 32, that is, so that the TDMS is a cluster unit.

FIG. 15 shows a TDMS composed of SRRI and TDDS, q is an integer of 1 or more, and p is an integer of 0 or more. q is increased or decreased according to the number of SRRs dividing user data, and p is selected so that p + q +1 is a multiple of 32, that is, so that TDMS is a cluster unit.

Fig. 16 shows a case where the TDMS is composed of TDFL, SRRI, and TDDS, where r is an integer of 1 or more, t is an integer of 1 or more, and s is selected such that r + s + t +1 is a multiple of 32, i.e., such that the TDMS is a cluster unit.

In any of the configurations of fig. 14, 15, and 16, the TDMS can be efficiently written to the disc in cluster units, which are the smallest units of recording, by storing the maximum transfer rate specification value in the TDDS without depending on the size of the TDFL or SSRI. Since the TDMS is additionally recorded every time user data is additionally recorded on the writable 1-time disc, the disc usage efficiency is improved.

Fig. 17 shows the overall structure of the optical disc shown in fig. 2 and the optical disc described in fig. 22. In fig. 17, an Inner Zone (Inner Zone), a Data Zone (Data Zone), and an Outer Zone (Outer Zone) correspond to the respective zones shown in fig. 2 and 22. Further inside these areas are a trimming area (BCA), permanent information, and control data (PIC), and management information (DI) on the disc determined before recording is recorded in advance for the disc as shown in fig. 18. The BCA is a signal generally written in a line shape by high-intensity laser light to an area of a certain width, and the PIC is a signal recorded by biphase modulation of a track. BCA and PIC are suitable for recording management data of small capacity in advance for easy and reliable reading, but data rewriting and additional recording are not possible.

Fig. 18 shows an example of a data structure of a DI recorded in advance by modulating a recording data track by the BCA and the PIC. The DI identification information indicates that this is DI in fig. 18. The disc structure information is information on the structure of the disc, such as the type and the number of layers of the disc, such as a reproduction-only disc, a 1-time recording disc, or a rewritable disc. The channel bit length represents the channel bit length of the disc. The BCA mark indicates the presence or absence of BCA. The data arrangement indicates the position of the data area shown in fig. 2 and 22. The standard recording speed indicates a standard recording speed. The reproduction power represents the maximum light emission power of the laser light irradiated during reproduction. The recording waveform information indicates information on a laser pulse waveform at the time of recording. The footnote indicates the end of the DI. Where these information are not recorded, 00 data is filled as a reservation. As described above, in the data structure shown in fig. 18, data that needs to be recorded in advance without additional recording or trimming after the start of recording is collected in a small volume.

Next, an example of the recording method of the present embodiment will be described with reference to fig. 19. Fig. 19 is a flowchart of the recording method of the present embodiment. In the present embodiment, a case is shown where 2 or more associated AV streams are received and recorded simultaneously or at intervals by a combination of broadcast and broadcast, broadcast and communication, communication and broadcast, and the like. Here, the association is assumed to be a case where, for example, a video that can be partially selected such as a video of another content or a video based on another viewing angle is simultaneously overlaid or a video that can be played side by side and played simultaneously is played. The processing 700 to 711 is substantially the same as that of the embodiment described in fig. 7, and differs only in that the associated broadcast program information is detected from the AV stream and recorded at 1900. At 1901, the associated broadcast program is recorded for the recorded AV stream in accordance with the associated broadcast program information detected and recorded at 1900. The process ends when there is no associated broadcast (1918), and when there is an associated broadcast, the recording of the associated broadcast program is performed in accordance with the processes indicated by 1902 to 1917. The processing of 1902 to 1917 is explained below. Reference numeral 1902 denotes a determination of the maximum transmission rate of a packetized AV stream of a broadcast program input in the same manner as 701, by detecting the associated broadcast program at 113 in fig. 1. The associated broadcast program for which the maximum transmission rate is determined is detected and recorded on the optical disc as a packetized AV stream (1903) in the same manner as 702. The associated broadcast program information is detected from the AV stream and recorded at 1904 in the same manner as at 1900. Further, the processes of 1902, 1903, and 1904 are repeated until the end of the broadcast program. When recording of the disc is completed, verification processing is performed (1906) similarly to the recorded data 704, alternation processing (1907) similar to the alternation area data rewriting (705) is performed as necessary, and a TDFL indicating the destination of the alternation processing result is generated (1908) similarly to 706. The flowchart goes to 1906, 1907, and 1908 after the recording is completed, but may be performed as needed during recording on the disc according to the system. TDDS (n) to TDDS (m-1), that is, TDDS (1909) of data recorded from recording processing 702 to recording processing 1903 immediately before, is read, and it is determined whether to selectively reproduce 2 related broadcast programs or a type of simultaneously reproducing 2 related files, based on a determination (1910) of a type of relevance of related broadcast program information detected and recorded at 1900 and 1904. When selectively reproducing, the maximum transfer rate predetermined value of the recording data corresponding to TDDS (n) and the recording data corresponding to TDDS (m) is almost unchanged, but when a margin is required corresponding to the time required for moving the optical pickup when switching, the maximum transfer rate predetermined value of TDDS (n) is a value obtained by adding a margin to the maximum transfer rate information detected from AV Clip information as attribute information added to the AV stream, a virtual re-judgment is performed, and virtual values (1913) up to TDDS (m-1) are sequentially obtained based on the virtual values of TDDS (n). The maximum transfer rate specification value 1914 for the packetized AV stream for the entire disc is generated from the newly recorded maximum transfer rate information for the packetized AV stream (as with TDDS (m-1), taking a margin if necessary) detected and judged at 1902 and the virtual specification value for the maximum transfer rate for the packetized AV stream recorded before the recording process 1904 included in TDDS (m-1). In the case of the type of simultaneous playback of 2 related files, the determination as to the virtual maximum transfer rate of the recording data corresponding to tdds (n) is made by adding a margin, if necessary, to the sum of the maximum transfer rate information of the recording data corresponding to tdds (n) and the maximum transfer rate information of the recording data corresponding to tdds (m). In order to detect the maximum transfer rate from the packetized AV stream corresponding to the tdds (n) to which recording has been completed, detection can be made from AV Clip information as attribute information added to the AV stream. A virtual value of TDDS (m-1) is sequentially obtained from the obtained virtual value of TDDS (n) (1911). Similarly, a virtual predetermined value of data recorded at 1903 is determined by adding a margin as necessary to the sum of the maximum transfer rate information of recording data corresponding to TDDS (n) and the maximum transfer rate information of recording data corresponding to TDDS (m), and is calculated from the virtual predetermined value of TDDS (m-1) (1912). Thereafter, tdds (m) (1915) is generated in the same manner as 709, the maximum transmission rate specified value generated at 1914 or 1912 is added and edited to tdds (m) (1916), and additional recording is performed (1917), and the process ends.

As described above, according to the recording method of the present embodiment, it is possible to receive related programs through different paths such as broadcasting and communication, and to perform rotation control at an optimum transmission rate for reproduction even when recording is performed individually.

Next, an example of the recording method of the present embodiment will be described with reference to fig. 20. The present embodiment relates to a recording method in a case where a broadcast program is newly recorded in a state where the maximum transfer rate is not recorded in the data of the immediately preceding TDDS, for example, in a case where data that does not require recording of a predetermined maximum transfer rate value, such as PC backup data, is mixed in the data that has been recorded, or in a case where an AV stream that is recorded by a recording-dedicated device having a resolution of about 2K1K and that does not require recording of a predetermined maximum transfer rate value in the TDDS is mixed in the data that has been recorded. Fig. 20 is a flowchart of the recording method of the present embodiment. The processing of 700 to 706 is the same as the embodiment illustrated in fig. 7. Subsequently, the initial value of m is set to 1(2000), the TDDS (n-m) is read (2001), it is determined whether the TDDS (n-m) contains the maximum transfer rate predetermined value (2002), and if not, it is determined that the TDDS contains the maximum transfer rate predetermined value (2003), or the steps are repeated (2001) (2002) until the TDDS (1) is reached. When the maximum transfer rate regulation value is not found from the TDDS (n-1) to the TDDS (1), the maximum transfer rate regulation value for the packetized AV stream of the entire disc is generated from the newly recorded maximum transfer rate regulation value for the packetized AV stream detected and judged at 701 (2008). When it is determined that the TDDS (n-m) in the middle of the trace back by trace back contains the maximum transfer rate specification value, the maximum transfer rate specification value for the packetized AV stream for the entire disc is generated from the maximum transfer rate specification value of the TDDS (n-m) that was found first and the newly recorded maximum transfer rate specification value for the packetized AV stream detected and determined at 701 (2009). 709 generates tdds (n) other than the maximum transfer rate, and 710 performs editing processing of adding the maximum transfer rate specification value for the packetized AV stream generated in 2008 or 2009 to the tdds (n) generated in 709. The TDDS (n) after the editing process of 710 is additionally recorded on the disk 711. The additional recording process (712) of TDDS (n) is completed.

As described above, according to the present embodiment, even when data that does not require recording of the maximum transfer rate specification value, such as PC backup data, is mixed with recorded data, when a new broadcast program needs to be recorded in a state where the maximum transfer rate is not recorded in the data of the immediately preceding TDDS, such as when an AV stream recorded by a recording-dedicated device having a resolution of about 2K1K, which does not require recording of the maximum transfer rate specification value in the TDDS, is mixed with recorded data, it is possible to record the maximum transfer rate specification value suitable for the target high-resolution video onto the disc, and when the disc is reproduced, it is possible to reproduce the data at the minimum rotational speed required.

Next, the present invention relates to a recording method in a case where maximum transmission rate information is not contained in a packetized AV stream transmitted as a broadcast wave. Fig. 21 is a flowchart of the recording method of the present embodiment. The processing of 700 through 712 is substantially the same as the embodiment illustrated in fig. 7. The present invention is different from the embodiment illustrated in fig. 7 in that a process (2100) of determining whether or not maximum transmission rate information is included in a packetized AV stream is added before the process of determining the maximum transmission rate of the packetized AV stream of an input broadcast program described in 701 of fig. 7, and processes 2101 and 2102 performed in place of 701 when it is determined that there is no maximum transmission rate information. At 2101, ID information indicating which broadcast station the broadcast station is transmitting from is detected from the packetized AV stream. In 2102, a maximum transmission rate specification value is detected and determined by referring to a correspondence table of maximum transmission rates that can be transmitted by each broadcasting station. The table is stored in a memory in the receiver, and can always be accurately determined by updating the table as necessary using a communication method such as the internet or a data broadcasting method.

As described above, according to the present embodiment, even if the maximum transmission rate information is not included in the AV stream received as the broadcast wave, the appropriate maximum transmission rate specification value can be recorded on the disc, and the disc can be reproduced at the minimum necessary rotation speed when the disc is reproduced.

Next, an outline of the operation of a recording and reproducing apparatus substantially similar to the recording and reproducing apparatus shown in fig. 1 will be described with reference to fig. 22. The difference from fig. 1 is that the 115TDDS generation processing unit is replaced with a DDS generation processing unit. Fig. 22 shows a case where the disc 101 of fig. 1 is a rewritable recording disc, where the lower side of each area is an inner circumference and the upper side is an outer circumference, and shows processing for each area. When a broadcast is recorded directly on the disc 101 as user data, the packetized AV stream output from the tuner 112 is written in the data area of the disc sequentially from the inner periphery side by the encoding processing unit 122. For example, in the first recording to the disc, the data is recorded at a location indicated as the first recorded data. After the recording of the AV stream is completed, the maximum transfer rate specification value 1 detected by 113 in fig. 1 is written into a Disc Management Area (DMA) by the encoding processing unit 122 with information on the alternation process and information on the range of the data recorded in time series, the DDS being a part of the Disc Management Structure (DMS). In the case of the 2 nd recording, that is, the 1 st additional recording, the AV stream is recorded in the 1 st location of the additional recording in the data area of the disc by the encoding processing unit 122. After the recording of the AV stream is completed, the maximum transfer rate specification value 2 detected by 113 in fig. 1 is set from the maximum transfer rate specification value 1 recorded in the DDS and the detected maximum transfer rate specification value 2 so that the maximum transfer rate for the entire data obtained by combining the first recorded data and the additional recorded 1 st data is the maximum transfer rate specification value 2', and the DDS, which is a part of the DMS, is rewritten to the DMA by the encoding processing unit 122 together with the information on the alternation process and the information on the range of the data recorded in time series. When the above-described processing is repeated and the 3 rd time of additional recording runs out of the data area of the disc, a maximum transfer rate set value for all data recorded on the disc is recorded in the DDS. Even if the disk is taken out after each recording, the DDS is updated every additional recording, and therefore the maximum transfer rate setting value for all data on the disk is always recorded in the latest DDS.

As described above, the recording method of the present embodiment can update the maximum transfer rate specification values for all data recorded on the disc for every record, and therefore, when the disc is reproduced, the disc can be reproduced at the minimum rotational speed required. Further, since the DFL needs to be updated even when the recording is completed and the maximum transfer rate predetermined value is recorded as a part of the DDS, a system having high affinity for processing various data can be provided, for example, when digital data and the like for which the maximum transfer rate is not required to be recorded are mixed.

Next, a description will be given of a difference between the recording method of the rewritable recording disk and the recording method described with reference to fig. 7. In the case of a rewritable recording disc, both a defect list (DFL) and a DDS can be rewritten, and therefore, the DFL and DDS are rewritten without additionally recording the TDFL and TDDS. That is, the 706TDFL generation processing in the flowchart of fig. 7 becomes DFL generation processing, 707TDDS (n-1) reading processing becomes DDS reading processing, and 708 generates a maximum transfer rate specification value for packetized AV streams for the entire disc from the maximum transfer rate specification value contained in the latest DDS and the newly recorded maximum transfer rate specification value for packetized AV streams detected and judged at 701. 709 changes from generation of tdds (n) to generation of the latest DDS, 710 changes from editing processing on tdds (n) to editing processing on DDS, and 711 changes from additional recording processing on tdds (n) to rewriting processing on DDS. By performing the above modification, a recording method of a rewritable recording disk can be realized, and even in a rewritable recording disk, reproduction can be performed at the minimum rotational speed required for the reproduction.

Next, fig. 23 and 24 show an example of the data structure of a DDS of a rewritable recording disc used in the present invention. Fig. 23 shows an example of the configuration of the DDS applied to 1) a case where it is not necessary to select the most appropriate rotation speed (the faster the rotation speed is), depending on the attribute of data such as backup of PC data, and 2) a case where it is not necessary to select the most appropriate rotation speed (the rotation speed that does not cause a problem, such as torque, can be completely matched) for processing with a device that performs recording and reproduction such as a video with only 2K1K resolution and that does not require a high transfer rate. Fig. 24 shows an example of the structure of the TDDS in a case where the optimum rotation speed is preferably selected, for example, when the TDDS is applied to 3) images with 4K2K resolution or 8K4K resolution.

In fig. 23 and 24, the DDS identification information is identification information for identifying that this is DDS information, and the defect list location information indicates the location of the DFL in the DMS illustrated in fig. 22. Each area position information is information on the position of the user data area and the area used for adjustment. The replacement area related information is information related to the replacement area, such as the size of the replacement area. The form and configuration of the above-described information are the same in fig. 22 and 23. The storage locations of the above-described information are basically filled with 00 data as the reservation processing. In fig. 23, further, a UHDS identification code and a maximum transmission rate regulation value, which are information indicating that this is about an AV stream of 4K2K or higher resolution, are recorded using a part of the position of the reservation processing. In fig. 22 and 23, 1 sector indicates that the size of data is 2048 bytes.

By specifying the configuration of the DDS in this way, 1) backup of PC data and 3) images with 4K2K resolution and 8K4K resolution can be mixed and stored on the same disc, and a device in which 1)2) is mixed can be compatible with only 1)2) can reproduce 1) backup of PC data without any problem. Similarly, the device 1)2) corresponding to only 1)2) can be used for the creation of the mixed disk 1)2)3) and the mixed disk 1)2)3) to reproduce the mixed disk 1). Further, the information shown in fig. 23 includes information that needs to be updated at the end of recording, and the processing that can update the maximum transfer rate specification value that needs to be updated for each recording process by recording the maximum transfer rate specification value with the configuration shown in fig. 24 can also improve the commonality in terms of timing. Therefore, it is easy to realize only the recording and reproducing apparatus corresponding to 1)2) and the recording and reproducing apparatus corresponding to 1)2)3) at the same time. In fig. 10 and 24, the maximum transfer rate is defined in the same manner, and the high commonality of the reproduction processing between the 1-time recordable disc and the rewritable disc can be maintained.

Next, an example of a recording method of the rewritable recording disk according to this embodiment will be described with reference to fig. 25. The present embodiment relates to a recording method in a case where a broadcast program is newly recorded in a state where the maximum transfer rate is not recorded in the latest DDS data, such as a case where data that does not require recording of a predetermined maximum transfer rate value, such as PC backup data, is mixed in the recorded data, or a case where an AV stream that does not require recording of a predetermined maximum transfer rate value in a DDS and is recorded by a recording-dedicated device having a resolution of about 2K1K, is mixed in the recorded data. Fig. 25 is a flowchart of the recording method of the present embodiment. The processing of 700 to 705 is the same as the embodiment illustrated in fig. 7. 2500 is capable of rewriting the DFL for the data subjected to the TDFL generation processing in the embodiment of fig. 7, and therefore adopts the DFL generation processing, which is different in point of the same processing in the sense of generating the replacement table of the defect. 2501 is different from the embodiment of fig. 7 in that it is possible to rewrite the DDS with data subjected to the read processing of tdds (n), and therefore, it is not necessary to additionally record tdds (n), and the DDS after update is read. Reference numeral 2502 denotes a process of determining whether or not the DDS read at 2501 contains a maximum transfer rate specification value, and if it is determined that the DDS contains the maximum transfer rate specification value, the maximum transfer rate specification value for the packetized AV stream for the entire disc is generated from the maximum transfer rate specification value recorded in the DDS and the newly recorded maximum transfer rate specification value for the packetized AV stream detected and determined at 701 (2504). If it is determined at 2501 that the maximum transmission rate predetermined value is not included in the DDS, AV CLIP information (AV CLIP INFO), which is information on the content of the stream to which the stream is added for each CLIP that is a recording unit of the packetized AV stream, is read for all CLIPs (2505). Next, maximum transfer rate information for all CLIPs is detected from the read AV CLIP INFO (2506), and further, conversion from the position information detected from all AV CLIP INFO to physical position information is performed to derive physical position information on the disc for all AV CLIPs (2507). Next, a maximum transfer rate specification value is generated from the maximum transfer rate information for all CLIPs detected at 2506 and the on-disc physical location information for all AV CLIPs detected at 2507 (2504). Next, at 2508, DDSs other than the maximum transfer rate are generated in the same manner as the tdds (n) generated at 709, and the DDS 2509 performs an editing process of adding a maximum transfer rate specification value for the packetized AV stream of the entire disc generated at 2503 or 2504 to the DDS (2509). 2510 the disk is overwritten with the DDS edited at 2509 (2510). The process ends with the rewriting of DDS (2511).

As described above, according to the present embodiment, even when a new broadcast program is recorded in a state where the maximum transfer rate is not recorded in the latest DDS data, such as when data that does not require recording of the maximum transfer rate specified value is mixed in a rewritable recording disc or when data that does not require recording of the maximum transfer rate specified value, such as PC backup data, is mixed in the recorded data, or when an AV stream that does not require recording in DDS and is recorded using a dedicated recording device with a resolution of about 2K1K is mixed in the recorded data, the maximum transfer rate specified value suitable for the target high-resolution video can be recorded in the disc, and the disc can be reproduced at the minimum rotational speed required when the disc is reproduced.

In addition, the method of generating the maximum transfer rate stipulation value of the entire disc from the maximum transfer rate information for all CLIPs and the on-disc physical location information of all AV CLIPs of the present embodiment can also be applied to the embodiment shown in fig. 7 as an alternative method to the maximum transfer rate stipulation value generation processing 708 of the entire disc shown in fig. 7.

Next, an example of a recording method of the rewritable recording disk according to this embodiment will be described with reference to fig. 33. This embodiment relates to a process of deleting a packetized AV stream recorded on a disc. First, AV CLIP INFO for all AV CLIPs is read (2505), the maximum transmission rate of all AV CLIPs is detected from the AV CLIP INFO (2506), and physical location information of all AV CLIPs is derived (2507). Next, it is determined which AV CLIP is deleted (3300). The maximum transmission rate specifying value is newly obtained from the maximum transmission rate information and the physical location information on all AV CLIPs other than the AV CLIP for which deletion is determined (3301). Next, AV CLIP INFO is trimmed simultaneously with the deletion of AV CLIP (3302), and further, information indicating the corresponding physical location is also trimmed simultaneously with the deletion of AV CLIP (3303). Further, the physical location of the AV CLIP deleted at 3303 is grasped, and based on the grasped information, the DFL is trimmed for the deleted AV CLIP (3304). The DDS is corrected based on the maximum transmission rate regulation value trimming and the DFL trimming (3305). The disk is rewritten with the trimmed DDS (3306). The process at the time of deletion is ended when the DDS is rewritten (3307).

As described above, according to the present embodiment, even when the rewritable recording disk is not only additionally recorded with high-resolution video data but also erased and rewritten, it is possible to record the maximum transfer rate predetermined value suitable for the target high-resolution video on the disk, and to reproduce the target high-resolution video at the minimum rotational speed required for reproducing the disk.

Next, an embodiment of the playback apparatus of the present invention will be described. Fig. 26 shows a playback device according to the present embodiment, and the 100 th component is a component for extracting components necessary for playback by the recording and playback device shown in fig. 2, and is different from 103 of 2601 in that 2601 does not have a function of emitting laser pulses for disc recording. Reference numeral 2600 denotes a control signal generating unit which transmits a maximum transfer rate predetermined value recorded in the latest TDDS or DDS detected by the disc management information detecting unit 114 to the servo 123, and controls the rotation of the disc motor based on the predetermined value. When the maximum transfer rate specification value is not obtained from the TDDS or DDS, 2600 transmits the maximum transfer rate specification value obtained by detecting and determining all AV CLIPs at 113 to the servo 123, and controls the rotation of the disk motor based on the specification value. The TDDS generating unit 115 in the recording and reproducing apparatus of fig. 2 also has the function of 2600.

Note that, in fig. 26, the

mechanism portions

101, 102, and 2601 and the

terminal portions

110 and 111 can be realized by electronic circuits.

As described above, according to the present embodiment, a disc on which a predetermined maximum transfer rate value suitable for a target high-resolution video is recorded can be reproduced at the minimum rotational speed required at the maximum transfer rate.

Next, an example of the playback method of the present invention will be described with reference to fig. 27. Fig. 27 is a flowchart showing a reproduction method of the present embodiment. The latest TDDS or DDS (2701) is read, the maximum transmission rate predetermined value (2702) is determined, and in the case of the numerical example illustrated in fig. 5 and 6, the rotation speed is determined to be Low (Low) and the rotation speed is set to 5000- α rpm (2703) in the case of the value indicated by the thick dotted line in fig. 5 or 6. The rotation speed is determined as Default (Default) in the case of the value indicated by the thick solid line in fig. 5 or 6, High (High) in the case of the thick 2-dot chain line, and the rotation speed is set to 5000rpm (2704). The disc is rotated at a set rotation speed to reproduce the recorded program (2705), and the process is terminated when the program is terminated (2706) (2707).

In this embodiment, the rotation speeds (2703, 2704) are set on the assumption that CAV reproduction is performed for a disc on which CLV recording is performed, but linear velocity may be set at a predetermined maximum transfer rate value as CLV reproduction is performed. In this case, the optical pickup needs to be moved every time the optical pickup is moved to access data, and the rotation speed needs to be kept stable, which is disadvantageous in terms of access time, but the optical pickup can be rotated at a minimum rotation speed at each position from the inner periphery to the outer periphery.

Next, an embodiment of the playback method of the present invention will be described with reference to fig. 28. Fig. 28 is a flowchart showing a playback method for a 1-time recording type disc when the maximum transfer rate is not recorded in the data of the immediately preceding TDDS, such as when data that does not require recording of a predetermined maximum transfer rate value, such as PC backup data, is mixed in the recorded data, or when an AV stream recorded by a recording-dedicated device with a resolution of about 2K1K, which does not require recording of a predetermined maximum transfer rate value in the TDDS, is mixed in the recorded data. First, an initial value setting (2800) of m ═ 0 is performed, and TDDS (n-m) ═ TDDS (n) (2801) which is the latest TDDS is read. It is judged whether or not the tdds (n) contains the maximum transfer rate specification value (2802), and if yes, the read maximum transfer rate specification value (2702) is judged, and the rotation speed control (2703, 2704) and the reproduction processing (2705, 2706) are performed in the same manner as in fig. 27, thereby ending the processing (2707). If the determination process 2802 determines that the maximum transmission rate predetermined value is not included, the TDDS (n-m) is traced back one by one until it is determined to be included, and the

processes

2805, 2702, 2703, 2704, 2705, and 2706 are performed at the time when it is determined to be included. If the maximum transfer rate specified value is not found even in the TDDS (1) which is the earliest TDDS, it is determined that the optimum control of the rotational speed is not necessary to match the maximum transfer rate of the AV stream, and the process is terminated (2707), and if necessary, the playback is performed by the control suitable for the recorded data.

As described above, according to the present embodiment, even when data that does not require recording of a maximum transfer rate specification value, such as PC backup data, is mixed with recorded data, when an AV stream recorded by a recording-dedicated device having a resolution of about 2K1K, which does not require recording of the maximum transfer rate specification value in the TDDS, is mixed with recorded data, it is possible to reproduce a disc recorded with the maximum transfer rate specification value suitable for a high-resolution video to be a target at a minimum required rotation speed at the maximum transfer rate.

When the reproduction processing according to this embodiment is executed by the recording/reproducing apparatus, the subsequent reproduction processing is shortened by additionally recording the TDDS (m +1) as an update in which the maximum transfer rate predetermined value of the TDDS (m-n) which is initially determined to include the maximum transfer rate predetermined value is the latest maximum transfer rate predetermined value.

Next, an embodiment of the playback method of the present invention will be described with reference to fig. 34. Fig. 34 is a flowchart showing a method of reproducing a rewritable disc when the maximum transfer rate is not recorded in the data of the last DDS, for example, when data that does not require recording of the maximum transfer rate specification value, such as PC backup data, is mixed in the data that has been recorded, or when an AV stream that does not require recording of the maximum transfer rate specification value in the DDS and is recorded by a recording-dedicated device having a resolution of about 2K1K is mixed in the data that has been recorded. First, the latest DDS is read (3400). It is judged whether or not the DDS contains the maximum transmission rate specification value (3401), and if yes, the read maximum transmission rate specification value is judged (2702), and the rotation speed control (2703, 2704) and the reproduction processing (2705, 2706) are performed in the same manner as in fig. 27, thereby ending the processing (2707). When the determination processing 3401 determines that the maximum transmission rate predetermined value is not included, all CLIPs are read for AV CLIP INFO to which information on the content of the stream to which the stream is added for each CLIP as a recording unit of the packetized AV stream (3402). Next, maximum transfer rate information for all CLIPs is detected from the read AV CLIP INFO (3403), and further, conversion from the position information detected from all AV CLIP INFO to physical position information is performed to derive physical position information on the disc for all AV CLIPs (3404). Next, a maximum transfer rate specification value is generated from the maximum transfer rate information for all CLIPs detected at 3403 and the on-disk physical location information for all AV CLIPs detected at 3404 (3405). After the maximum transmission rate specification value is generated, the processing of 2702, 2703, 2704, 2705, and 2706 is performed in the same manner as when the maximum transmission rate specification value is detected by the DDS, and the processing is terminated (2707).

As described above, according to the present embodiment, even when data that does not require recording of the maximum transfer rate specification value, such as PC backup data, is mixed with recorded data, and when an AV stream recorded by a recording-dedicated device having a resolution of about 2K1K, which does not require recording of the maximum transfer rate specification value in DDS, is mixed with recorded data, the data can be reproduced at the minimum rotational speed required for a disc on which the maximum transfer rate specification value suitable for the target high-resolution video is recorded.

In addition, when the reproduction processing of the present embodiment is executed by the recording and reproducing apparatus, the maximum transfer rate defined value obtained at 3405 is updated with the DDS as the latest maximum transfer rate defined value, and the reproduction processing is shortened.

Next, an embodiment of the recording and reproducing apparatus of the present invention will be described with reference to fig. 29. Fig. 29 is a block diagram of a recording/reproducing apparatus, and shows a configuration divided into two elements, a drive unit 2900 for recording/reproducing the recording/reproducing apparatus shown in fig. 1 on/from a disc in accordance with the physical format of the disc, and a host unit 2901 for performing compression, multiplexing, packetization of an AV signal, depacketization, separation, expansion, and the like of an AV stream subjected to compression multiplexing. In fig. 29, 2902 denotes an output port and an output terminal of 2900, and 2903 denotes an input terminal and an input port of 2901 to which data output from 2902 is input. Further, 2905 denotes an output port and an output terminal of the

host

2901, and 2904 denotes an input terminal and an input port of 2900 to which data output from 2905 is input. Reference numeral 2906 denotes a selection processing unit that selects an input from the tuner 112, the hard disk drive 125, the maximum transmission rate specification value detection determination unit 113, and the selection packer (packer) 120 and sends it to the output port and the

output terminal

2905, 2907 denotes a processor that controls each component of the

driver section

2900, and 2908 denotes a processor that controls each component of the host section 2901. In fig. 29, the components of the 100 th station are the same as those in fig. 1.

In fig. 29, the mechanical parts of 101, 102, and 103 and the terminal parts of 110, 111, 117, 116, 2902, 2903, 2904, and 2905 can be realized by electronic circuits.

As described above, by dividing the driver 2900 and the host 2901 into two parts as described above, a port having high versatility can be constructed between the two parts, for example, as in a personal computer and a disk drive for a personal computer, and versatility can be improved also as a configuration of the driver.

Next, an embodiment of the recording method of the present invention will be described with reference to fig. 30. Fig. 30 is a diagram showing a recording method in the recording and reproducing device including the drive unit and the host unit as shown in fig. 29, and shows respective recording processes of the drive unit and the host unit and data transfer between the drive unit and the host unit. In fig. 30, first, a broadcast program is received by the host (3000), depacketization processing is performed on the received packetized AV stream (3002), maximum transmission rate information is detected from the AV stream (3003), and AV CLIP INFO is generated from the detected maximum transmission rate information and the like (3004). At 3002, 3003, and 3004, AV Clip information including maximum transfer rate information is generated (3005). The AV stream and AV CLIP INFO are respectively data-transferred to the drive sides (3012, 3013). Both are recorded on the disk (3001) as user data on the drive side. Further, a verification check is performed on the recorded user data (704), and an alternate process is performed as necessary (705), and the TDFL is generated as a table of the alternate process result. Next, the TDDS (n-1) is read in order to perform detection of the maximum transfer rate stipulation value with respect to the data whose recording has been completed before the recording process 3001 (707). Next, the maximum transfer rate specification value of the AV stream recorded in the user data record 3001 is obtained in the following order. First, maximum transfer rate information corresponding to the data record 3001 is requested from the host side (3014). The host side derives a logical address of the corresponding AV CLIP INFO (3007), and requests the drive side to read data at the logical address (3015). The drive side converts the logical address into a physical address on the disk to determine a position, and then transfers the requested AV CLIP INFO to the host side (3016), and the host side extracts maximum transfer rate information from the transferred AV CLIP INFO (3008) and transfers the maximum transfer rate information to the drive side (3017). The maximum transfer rate specification value for the entire disc is derived from the maximum transfer rate specification value for the data obtained from the maximum transfer rate information on the data of the recording process 3001 obtained as described above and the maximum transfer rate specification value detected from the TDDS (n-1) (708). Then, after generating TDDS (n) other than the maximum transfer rate information (709), an editing process (710) of adding TDDS (n) having a predetermined maximum transfer rate value of the entire disc is performed, TDDS (n) (711) having already been edited is additionally recorded, and both processes (3010, 3011) are ended.

As described above, according to the present embodiment, complicated data exchange such as that shown in 3014 to 3017 is performed only for the last additional recording data. By recording the recording data as the tdds (n) with the maximum transfer rate predetermined value in this way, it is possible to optimally control the rotation speed of the disk during reproduction without complicated data exchange as shown in 3014 to 3017. In this embodiment, 3007 and 3008 are directed to the maximum transfer rate information in the AV CLIP INFO, but may be directed to the maximum transfer rate information in the packetized AV stream received at 3000. In the rewritable recording disc, the same can be performed by updating the DDS with TDDS (n-1) in 707, DDS (n) in 709, 710, and DDS (n) in 711.

Next, the details of the processing for obtaining the maximum transfer rate predetermined value from the maximum transfer rate information in the recording method of the present invention will be described with reference to fig. 31. Fig. 31 shows the recording process between the driver unit and the host unit and the data transfer between the driver unit and the host unit when the maximum transfer rate detection determination process shown in fig. 8 is performed in the recording and reproducing apparatus including the driver unit and the host unit as shown in fig. 29. First, the host side extracts maximum transfer rate information from the transferred AV CLIP INFO (3008), and transfers the maximum transfer rate information to the drive side (3110). On the drive side, based on the maximum transfer rate information transferred from the host side, if the maximum transfer rate is 92-C Mbps or less, the maximum transfer rate is set to 92-C Mbps (3100), if it is determined that the maximum transfer rate is not 92-C Mbps or less, the maximum transfer rate is set to 92Mbps (3101) if the maximum transfer rate is 92Mbps or less, if it is determined that the maximum transfer rate is not 92Mbps or less, it is further determined that the maximum transfer rate is an inner circumference side within the recording position, if it is an inner circumference side, the maximum transfer rate is set to 122+ B Mbps (3103), and if it is determined that the recording position is an outer circumference side (3103) from the predefined position, an abnormal stop processing request is transmitted to the host side (3111). When the host side receives the abnormal stop processing request (3111), the host side replaces the logical address of the recording position with an address corresponding to the physical outer-peripheral recording position, and then retransmits the AV stream (3113). The drive side records the data at the specified position on the disc (3001) after converting the data from the specified logical address to the physical position information. When it is specified in the processing 3102 that the number of bits is not 122+ B Mbps or less, an exception processing request is transmitted to the host side (3107), and the host side receives 3107 an exception stop processing for executing the entire processing (3107). After the above-described processing is completed, the processing is terminated (3108, 3109).

As described above, according to the present embodiment, the maximum transfer rate detection determination process shown in fig. 8 can be executed by the host side to determine the final abnormal end determination or rewriting, and the drive side can execute only the determination as to whether or not recording is possible based on the received maximum transfer rate information with respect to the reference of the maximum transfer rate specification value.

Next, an embodiment of the recording method of the present invention will be described with reference to fig. 32. Fig. 32 is a diagram showing a recording method in a case where, in the recording and reproducing apparatus including the drive unit and the host unit as shown in fig. 29, for example, data of which recording of the maximum transfer rate is unnecessary, such as PC backup data, is mixed with data of which recording of the maximum transfer rate is unnecessary, or an AV stream recorded by a recording-only apparatus of a resolution of about 2K1K, which does not require recording of the maximum transfer rate in the TDDS, is mixed with data of which recording of a broadcast program is necessary in a state where the maximum transfer rate is not recorded in the data of the TDDS immediately before, and shows the respective recording processes of the drive unit and the host unit and data transfer between the drive unit and the host unit. In fig. 32, processes up to 3000, 3001, 3002, 3003, 3004, 3005, 704, 705, 706, 3012, and 3013 and transmission data are the same as those shown in fig. 30. The following processing and transmission data will be described below. First, reading of TDDS (n-m) is performed from TDDS (n-1) (3200). In the case where the maximum transfer rate stipulation value is not contained in the TDDS (n-m), the TDDS (n-m) is read back one by one until the maximum transfer rate stipulation value is found (3201). Next, the maximum transfer rate specification value of the AV stream recorded in the user data record 3001 is obtained in the following order. First, similarly to the processing and data transfer shown in fig. 30, the maximum transfer rate specification value (3202) for the entire disk is derived from the maximum transfer rate specification value for the data obtained from the maximum transfer rate information on the data of the recording processing 3001 obtained at 3014, 3007, 3015, 3016, 3008, and 3017 and the latest maximum transfer rate specification value detected from the TDDS (m-n). The following

processes

3009, 709, 710, 711, 3010, and 3011 are the same as those described in fig. 30.

As described above, according to the present embodiment, even when it is necessary to newly record a broadcast program in a state where the maximum transfer rate is not recorded in the data of the immediately preceding TDDS in the recording and reproducing apparatus including the driver unit and the host unit as shown in fig. 29, the latest maximum transfer rate predetermined value can be read only by the process 3203 on the driver side without complicated exchange with the host side, and the configuration can be realized in which the recording can be performed so that the rotation speed of the disk at the time of reproduction can be optimally controlled.

Next, an embodiment of the recording method of the present invention will be described with reference to fig. 35. Fig. 35 is a diagram showing a recording method of a rewritable recording disk in a case where, in the recording and reproducing apparatus including the drive unit and the host unit as shown in fig. 29, for example, data of which recording of the maximum transfer rate is unnecessary, such as PC backup data, is mixed with data of which recording is completed, or in a case where an AV stream recorded by a recording-dedicated device of a resolution of about 2K1K, which does not require recording of the maximum transfer rate in DDS, is mixed with data of which recording is completed, and in a case where a broadcast program is newly recorded in a state where the maximum transfer rate is not recorded in data of the latest DDS, the recording process of the drive unit and the host unit, and data transfer between the drive unit and the host unit are required.

In fig. 32, processes up to 3000, 3001, 3002, 3003, 3004, 3005, 704, 705, 3012, and 3013 and transmission data are the same as those shown in fig. 30. In addition, since the processing 2500 is directed to a rewritable recording disc, the TDFL generation 706 is changed to the DFL generation 2500. First, reading of DDS is performed (2501). When the DDS does not include the maximum transfer rate specification value, maximum transfer rate information corresponding to all AV clips is first requested from the host side (3507). The host side derives all the logical addresses of AV Clip information (3501), and requests the drive side to read the data at the logical addresses (3508). The drive side converts the logical address into a physical address on the disk to obtain a position, and transfers the requested AV CLIP INFO to the host side (3509), and the host side extracts maximum transfer rate information (3503) from all the transferred AV CLIP INFO and further extracts position information (3503) of each AV stream for each AV CLIP INFO. Then, the maximum transmission rate information and the position information of each AV stream are transmitted to the drive side (3510). A maximum transfer rate regulation value (3502) of the entire disk is derived from the transferred maximum transfer rate information and the position information of each AV stream. When the maximum transfer rate specification value is included in the DDS, the DDS is changed from the TDDS (n-1) of the target, but the maximum transfer rate specification value is derived by performing the processing in the same manner as 708, 3014, 3007, 3015, 3016, and 3017 in fig. 30. 2508. 2509 and 2510 are the same as the processing in fig. 25, and after these processes are performed, the host side and the drive side end the processes together.

As described above, according to the present embodiment, even when it is necessary to newly record a broadcast program in a state where the maximum transfer rate is not recorded in the latest DDS data in the recording and reproducing apparatus including the driver unit and the host unit as shown in fig. 29, it is possible to determine and record the maximum transfer rate predetermined value, and it is possible to optimally control the rotation speed of the disc without exchanging complicated control information with the host unit at the time of reproduction.

Description of reference numerals

101 … record/reproduction optical disc, 102 … disc motor, 103 … pickup, 105 … decode processing section, 107 … depacketize packet processing section, 108 … demultiplexer, 109 … AV decode processing section, 112 … tuner, 113 … maximum transmission rate detection judgment processing section, 114 … disc management information detecting section, 115 … TDDS generating section, 118 … AV encode processing section, 119 … multiplexer, 120 … packet processing section, 122 … encode processing section, 123 … servo processing section, 125 … hard disk drive, 701 … maximum transmission rate detection judgment processing section, 707 … TDDS read processing, 708 … maximum transmission rate regulation value generating processing section, 711 … TDDS additional recording processing section, 1900 … associated broadcast recording information detection recording processing section, 1910 … associated broadcast type judgment processing section, 2002 … maximum transmission rate judgment processing section, regulation value 865 2101 … broadcast station ID detection processing section, 21014 broadcast station ID detection processing section, 2102 … maximum transfer rate table reference processing, 2505 … all-AV CLIP information reading processing, 2506 … all-AV CLIP maximum transfer rate detection processing, 2507 … AV CLIP position information detection processing, 2702 … maximum transfer rate regulation value judgment processing, 2703 … rpm setting processing, 2704 … rpm setting processing, 3014 … maximum transfer rate information request, 3015 … data reading request, 3016 … AV CLIP information transmission, 3017 … maximum transfer rate information transmission.

Claims

1. A recording method for a recording type disk capable of recording a digital video signal, comprising:

recording the received video signal as user data on a recording disc;

detecting a maximum transmission rate at the time of reproduction from a data stream of the received video signal;

obtaining reproduction transmission rate setting information from the maximum transmission rate; and

a step of recording the reproduction transmission rate setting information as disc definition information,

the disc definition information includes information regarding defect handling.

2. The recording method according to claim 1, wherein:

the disc definition information is constituted in a minimum recording unit of the user data.

3. A recording method for a recording type disk capable of recording a digital video signal, comprising:

recording the received video signal as user data on a recording disc;

in the step of detecting the highest transmission rate at the time of reproduction from the data stream of the received picture signal,

when the data stream does not include the maximum transmission rate information, the detection is performed based on an ID of a sender of the video signal in the data stream and a correlation table stored in a recording device between the senders and a maximum transmission rate at which the senders can transmit the video signal.

4. A recording method for a recording type disk capable of recording a digital video signal, comprising:

recording the received video signal as user data on a recording disc;

when it is determined based on the management information of the video signal that the data stream of the received video signal is data related to the data stream of the video signal recorded on the recording-type disk and that simultaneous reproduction is to be performed, the sum of the maximum transfer rate at the time of reproduction detected from the data stream of the received video signal and the data stream of the recorded video signal determined to be simultaneously reproduced is determined as maximum transfer rate information.

5. A recording method for a recordable disk capable of recording a digital video signal, comprising:

recording the received video signal as user data on a recording disc;

updating reproduction transfer rate setting information based on reproduction transfer rate setting information of recorded data detected from disc definition information recorded on the recording type disc and maximum transfer rate information detected from a received video signal; and

and updating the reproduction transfer rate setting information as the step of updating the disc definition information.

6. The recording method according to claim 5, wherein:

if the latest disc definition information does not include reproduction transfer rate setting information, the reproduction transfer rate setting information of the latest disc definition information is selected from the disc definition information including the reproduction transfer rate setting information as the reproduction transfer rate setting information of the recorded data.

7. The recording method according to claim 5, wherein:

when the latest disc definition information does not include reproduction transfer rate setting information, the reproduction transfer rate setting information of the recorded data is obtained based on the highest transfer rate information detected from all video signals that have been recorded.

8. The recording method according to claim 5, wherein:

the step of detecting the highest transmission rate at the time of reproduction from the data stream of the received video signal is executed by a device having a lower processing unit that performs reading and writing processing of the recording type disc and an upper processing unit that performs file management processing of user data read by the lower processing unit, decoding processing of a video data stream, video data stream generation processing of user data recorded by the lower processing unit, and generation of file management information,

the step of detecting the highest transmission rate at the time of reproduction from the data stream of the received video signal includes:

a lower processing step of requesting the highest transmission rate information to the upper processing unit;

a higher-level processing step of obtaining position information of additional information of the data stream of the received video signal from file management information;

a disc reading lower processing step of transmitting additional information of the data stream of the received video signal to the upper processing unit based on the position information; and

a processing step of the upper processing unit extracting a highest transmission rate from additional information of a data stream of the received video signal received from a lower processing unit,

the step of updating the reproduction transfer rate setting information based on the reproduction transfer rate setting information of the recorded data detected from the disc definition information recorded on the recording type disc and the maximum transfer rate information detected from the received video signal is performed by a lower processing step.

9. A method of reproducing a recording-type disk on which a digital image signal is recorded, comprising:

the digital picture signal is recorded by a recording process including:

recording the received video signal as user data on a recording disc of a constant linear velocity system;

the reproduction method includes:

setting a rotation speed of a playback device in accordance with the playback transmission rate setting information; and

reading data from a disk rotating at the set rotational speed,

the set rotation speed is a constant linear speed.

10. A method of reproducing a recording-type disk on which a digital image signal is recorded, comprising:

the digital picture signal is recorded by a recording process including:

the reproduction method includes:

reading data from a disk rotating at the set rotational speed,

the set rotation speed is a constant rotation speed, and the reproduction transfer rate of the innermost circumference is equal to or more than a reproduction transfer rate set value.

11. A method of reproducing a recording-type disk on which a digital image signal is recorded, comprising:

the digital picture signal is recorded by any one of a first recording process and a second recording process, wherein,

the first recording process includes:

the second recording process records user data on a recording-type disc at a constant linear velocity without the step of recording the reproduction transfer rate setting information,

the reproduction method includes:

setting a rotation speed of a playback device in accordance with the playback transmission rate setting information;

selecting the reproduction transmission rate setting information of the latest disc definition information from the disc definition information including the reproduction transmission rate setting information, or obtaining the reproduction transmission rate setting information based on the highest transmission rate information detected from all video signals on which recording has been completed, when the reproduction transmission rate setting information is not included in the latest disc definition information; and

reading data from a disk rotating according to the rotational speed setting.

12. The reproduction method according to any one of claims 9 to 11, wherein:

executed by a device including a lower processing unit that performs reading processing of the recording-type disc and an upper processing unit that performs file management processing of user data read by the lower processing unit and decoding processing of a video data stream,

the step of setting the rotation speed of the reproduction apparatus in accordance with the reproduction transfer rate setting information is executed by a lower processing unit.

13. The reproduction method according to claim 11, characterized in that:

the process of selecting the reproduction transmission rate setting information of the latest disc definition information from the disc definition information including the reproduction transmission rate setting information is performed by the lower processing unit,

the process of obtaining the reproduction transmission rate setting information based on the highest transmission rate information detected from all the video signals on which recording has been completed includes the steps of:

a lower processing step of requesting the highest transmission rate information of the data stream of the video signal to the upper processing unit;

and a processing step of the upper processing unit extracting a maximum transmission rate from the additional information of the data stream of the received video signal received from the lower processing unit.

14. A recording apparatus for a recording type disk capable of recording a digital video signal, comprising:

a write unit for writing the received video signal as user data to a recording disc;

a detection processing unit for detecting the highest transmission rate during reproduction from the data stream of the video signal;

a unit for obtaining reproduction transmission rate setting information from the maximum transmission rate information;

a unit that generates disc definition information including the reproduction transfer rate setting information; and

a unit for updating disc definition information on the recording type disc,

the disc definition information includes information regarding defect handling.

15. A reproduction apparatus for a recording type disk on which a digital image signal is recorded, comprising:

the digital picture signal on the recording-type disk is recorded by either one of a first recording process and a second recording process, wherein,

the first recording process includes:

the second recording process records user data on a recording type disc of a constant linear velocity system without recording the reproduction transfer rate setting information,

the reproduction apparatus includes:

a unit reading disc definition information;

a unit detecting a maximum transmission rate specification value from the disc definition information;

a unit for controlling the rotation of the recording type disk according to the detected maximum transfer rate regulation value; and

a reading unit that reads user data from the recording type disc.