WO2004055812A1 - 記録装置のデータ記録方法、記録装置、データ記録プログラム、および該プログラムを記録した記録媒体 - Google Patents
記録装置のデータ記録方法、記録装置、データ記録プログラム、および該プログラムを記録した記録媒体 Download PDFInfo
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- WO2004055812A1 WO2004055812A1 PCT/JP2003/015495 JP0315495W WO2004055812A1 WO 2004055812 A1 WO2004055812 A1 WO 2004055812A1 JP 0315495 W JP0315495 W JP 0315495W WO 2004055812 A1 WO2004055812 A1 WO 2004055812A1
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
- G11B2020/10805—Data buffering arrangements, e.g. recording or playback buffers involving specific measures to prevent a buffer overflow
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2541—Blu-ray discs; Blue laser DVR discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/40—Combinations of multiple record carriers
- G11B2220/41—Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title
Definitions
- the present invention relates to a plurality of data that are at least partially input simultaneously, in particular,
- the present invention relates to a data recording method, a recording device, a data recording program, and a recording medium for recording the program of a recording device that records content data such as images and sounds on a recording medium.
- the present invention relates to a disk recording device capable of simultaneously recording a television broadcast program, and a program recording method in the recording device.
- VTR Video Tape Rec
- a method of simultaneously recording or reproducing a plurality of programs in the same time zone with reference to an electronic program guide (EPG: Electronic Programming Guide) used in the digital broadcasting is disclosed in Japanese Patent Laid-Open Publication No. 2000-2000. It is disclosed in No. 0-217063 (released August 4, 2000).
- optical disk recording devices have already realized a function of reproducing one program while recording another program, due to its high-speed recording performance and advances in buffering technology.
- an optical disk recording device of model number DMR-HS2 commercially available from Matsushita Electric Industrial Co., Ltd.
- an object of the present invention is to reduce the number of pickup seeks when recording a plurality of data that are at least partially input almost simultaneously on a recording medium. Accordingly, an object of the present invention is to provide a data recording method of a recording device, a recording device, a data recording program, and a recording medium on which the program is recorded, which can prevent recording from being disabled. Disclosure of the invention
- the data recording method of the recording device for recording the data detecting a continuous empty area in the recording medium
- the distribution speed of data distributed from information media such as newspaper companies and broadcasting stations, that is, data distributed from information media enters recording devices.
- the data recording speed on the recording medium is faster than the input speed. Therefore, according to the above-described method, each data input simultaneously can be recorded in a continuous free area in the recording medium.
- the seek of the pickup occurs only when a part of certain data is recorded in a certain continuous recording area and then another part of data is recorded in another continuous recording area. This does not occur in the individual recording area where each data is recorded. Therefore, it is possible to reduce the number of times of seeking of the pickup, and it is possible to prevent simultaneous input data from being unrecordable.
- the recording medium has a plurality of recording layers and a continuous free area extends over a plurality of recording layers, recording is performed at the end of one recording layer and then at the beginning of the next recording layer.
- the seek operation of the pickup may occur.
- the number of seeks of the pickup occurring in the recording area for recording each data can be suppressed to about several times, so that simultaneously input data can be prevented from being unable to be recorded. .
- the above-mentioned data is data having an extremely long data length, such as content data such as video and audio.
- a recording apparatus for recording, on a recording medium, a plurality of data that are at least partially input simultaneously.
- selecting means for selecting an empty area having a recording capacity for each data
- recording control means for controlling to record corresponding data in the selected empty area
- each data is recorded in a continuous free area on the recording medium.
- a pickup seek only occurs when a part of different data is recorded in separate empty areas, and does not occur in a recording area where the same data is recorded. Therefore, it is possible to reduce the number of times of the seek of the pickup, and to prevent the simultaneously input data from being unable to be recorded due to the repetition of the seek.
- Each step performed by the data recording method of the recording device described above can be executed on a computer by a data recording program. Further, by storing the data recording program on a computer-readable recording medium, the data recording program can be executed on any computer. Still other objects, features, and advantages of the present invention will be sufficiently understood from the following description. Also, the advantages of the present invention will become apparent in the following description with reference to the accompanying drawings.
- FIG. 1 is a block diagram showing a schematic configuration of an optical disk recording / reproducing apparatus according to an embodiment of the present invention.
- FIG. 2 is a chart showing an example of the status of programmed recording in the optical disc recording / reproducing apparatus.
- FIG. 3 is a flowchart showing a recording control process in the optical disc recording / reproducing apparatus.
- FIG. 4 is a flowchart showing details of the disk information acquisition processing shown in FIG.
- FIG. 5 is a flowchart showing details of the recording reservation process shown in FIG.
- FIG. 6 is a flowchart showing details of the recording execution processing shown in FIG.
- FIG. 7 is a schematic diagram showing a state in which two programs are recorded on an optical disk in the optical disk recording / reproducing apparatus.
- FIG. 1 shows a schematic configuration of an optical disc recording / reproducing apparatus for realizing the program recording method of the present invention.
- the optical disk recording / reproducing device 10 is a device that records and reproduces data on and from the optical disk 17.
- the optical disk recording / reproducing device 10 includes a system control unit 11, an information input unit 12, an information output unit 13, a user operation unit 14, a disc recording / reproduction unit 15, a disk ID detection unit 16, and a video input.
- the system 18 includes a system 18, a video output system 19, a buffer memory 20, and a status display unit 21.
- the disk recording / reproducing unit 15 receives the content data including the video information and the audio information from the system control unit 11, converts the received content data into a format recordable on the optical disk 17, and Recorded on 17 Is what you do.
- the disc recording / reproducing unit 15 reads the content data recorded on the optical disc 17, converts the read content data into a format playable by the information output unit 13, and One to send.
- the disc recording / reproducing unit 15 performs an initialization (format) process of the optical disc 17 in accordance with an instruction from the system control unit 11, and when the initialization process is completed, the disc control unit 11 sends the optical disc 17 to the system control unit 11. This signal notifies the completion of the initialization process.
- the optical disk 17 stores content data. Some optical disks 17 have a unique disk ID, which is an identification code of the optical disk 17, added thereto.
- the disk ID detection unit 16 detects the disk ID when the optical disk 17 having the disk ID is inserted.
- a paper label on which a bar code is printed as a disc ID is attached to the optical disc 17, and the disc ID detection unit 16 is installed in the optical disc recording / reproducing apparatus 10; It is assumed that a disc ID is obtained from the paper label by using a bar code reader that optically reads a bar code. This is detected by attaching the paper label to a predetermined location of the optical disc 17 by a user.
- the means for detecting the optical disk 17 in the disk ID detection unit 16 is not limited to this example.
- optical disk 1 7 itself or optical disk 1 7
- An IC chip that allows non-contact access to a cartridge (not shown) that houses the optical disk may be attached, or an optical disk such as a BCA (Burst Cutting Area) area of a DVD (Digital Versatile Disk).
- BCA Band Cutting Area
- DVD Digital Versatile Disk
- the identification code written on the recording surface may be used.
- the information input unit 12 receives content data from a television broadcast or the like via the video input system 18 and transmits the received content data to the system control unit 11. Further, the information input section 12 selects one of a plurality of tuners and external inputs provided in the video input system 18 and receives content data from the selected tuner or external input. is there.
- the information input unit 12 can also have a built-in decoding function for expanding the compressed moving image data and audio data. Also, the information input unit 12 may have a function of taking in program information such as EPG.
- the information output unit 13 receives content data from the system control unit 11, and converts the received content data. Play or output. Specifically, the information output unit 13 displays video information of the content data on a video display device such as a CRT and outputs audio information of the content data on a voice output device such as a speaker.
- the information output unit 13 can also receive the content selection menu from the system control unit 11 and reproduce or output the received content selection menu.
- the content selection menu is a list of titles of the content and a list of thumbnail images showing the content of the content.
- the user uses the user operation unit 14 to By selecting the required content from the content selection menu, the number of the selected content information is notified to the system control unit 11.
- the buffer memory 20 is a storage device for temporarily storing moving image information from a disk.
- the buffer memory 20 stores content data.
- the buffer memory 20 is also used as a place for temporarily storing data when recording on the optical disk 17.
- different programs are recorded at different radial positions of the disk using the buffer memory 20. Therefore, for example, when two content data (programs) are recorded, the buffer memory 20 is stored in the buffer memory 20. And use them individually as data buffers.
- the status display section 21 displays device status information indicating the status of the device such as a recording status and a playback status. Further, the status display section 21 can also display a reserved recording status, information obtained by EPG, and the like.
- the system control section 11 controls the various components of the disk recording device 10 in an integrated manner. That is, the system control unit 11 controls the operation of the above-described various configurations and the input and output of data between the various configurations based on the operation input by the user from the user operation unit 14. The control operation in the system control unit 11 will be described later.
- FIG. 2 shows an example of the status of scheduled recording, and shows a schedule for each input on September 9, 2002 (Monday).
- the time zone of the program to be recorded is displayed in a bold frame, and the time zone in which the actual recording is performed is displayed on the left of the bold frame. In this way, record It is also possible to specify an arbitrary time zone from among the program time zones and record only during the specified time zone.
- the programs of terrestrial tuner 1 and CS tuner overlap in the time zone from 3:00 to 4:00, and in the time zone of 4:00 to 6:00, terrestrial tuner 1 and terrestrial
- the program of Tuner 2 is duplicated.
- the program data sent from broadcast media such as terrestrial broadcasting, CS digital broadcasting, and BS digital broadcasting has almost the same data transmission speed depending on the image quality. For example, it is about 4 Mbps (Megabit per second) for normal image quality, and about 23 Mbps for HDTV.
- the data transfer rate is about 5 Mbps on average and 10 Mbps at maximum.
- the data transfer rate (reading / writing speed of the recording medium) when the disc recording / reproducing unit 15 performs recording / playback on the optical disc 17 is, for example, a CD drive or DVD drive.
- a CD drive or DVD drive As seen in 2x to 12x speed drives, it is possible to increase the speed regardless of the broadcast and video standards.
- the HDD and optical disk drives can record and play back at a speed of about 25 M to 100 M bps. It is possible to record.
- the system control unit 11 divides the storage area of the buffer memory 20 into two and stores two programs from two tuners. Data is stored in each of the divided storage areas. At this time, it is necessary to perform recording on the optical disk 17 before the storage area corresponding to each program in the buffer memory 20 becomes full of data.
- the storage capacity of the buffer memory 20 is assumed to be 200 Mbits (25 Mbytes), and data is stored in the buffer memory 20 at an average DVD playback rate of 5 Mbps. And At this time, the storage capacity of the storage area corresponding to each program in the buffer memory 20 is 100 Mbit. Therefore, the time required to fill the storage area corresponding to each program with data is 20 seconds.
- the time for recording 100 Mbit data on the optical disk 17 is about 3.3 seconds. Strictly speaking, data from the tuner is stored in the buffer memory 20 even during recording on the optical disk 17, so if the recording time on the optical disk 17 is extended by about 0.5 seconds, each program can be supported. Almost all data in the storage area to be recorded can be recorded. That is, if the buffer memory 20 is used, the recording on the optical disk 17 is completed within 4 seconds out of the data storage time 20 seconds, and there is no need to record on the optical disk 17 for at least 16 seconds. . Therefore, the program data stored in the other storage area can be recorded in another recording area of the optical disk 17 during the 16 seconds. At this time, a time for moving the pickup to another recording area of the optical disk 17 is required, but since the movement time of the pickup is usually 1 second or less, there is enough room for recording.
- the system control unit 1 controls a series of flows, such as input from multiple tuners, allocation to buffer memory 20 and recording from buffer memory 20 to optical disk 17 as described above. 1 role.
- the recording time of the program reserved for recording is already known, but for the program to be recorded from now on, the scheduled recording end time may not be known, or the recording time may not be determined in advance.
- the method can be applied to the method of securing the recording area for each genre of the program to be recorded such as a movie, a sport, a drama, and the like. It is. In this case, it is necessary to categorize the genre for each program to be recorded, but the categorization can be performed automatically using the EPG as described above.
- next-generation high-density optical disc BD Blu-ray Disc
- BD Blu-ray Disc
- the second layer should be used to enable continuous recording and playback.
- each of the recorded programs may be allocated to external output 1 and external output 2 respectively, It may be output to external output 1 so as to display two recorded programs separately.
- recording control processing processing when the above operation is performed as a control operation of the system control unit 11 (hereinafter, referred to as “recording control processing”) will be described with reference to FIGS.
- the recording control process is a disc information acquisition process for acquiring information on the optical disc 17 (step S 1, which may be abbreviated as “S 1” below. The same applies to other steps. ), And a recording reservation process (S2) for reserving recording, and a recording execution process (S3) for executing recording.
- S1 disc information acquisition process
- S2 recording reservation process
- S3 recording execution process
- the process waits until the optical disk 17 is inserted (S10).
- the disk ID detection unit 16 detects a unique disk ID.
- This disc ID is unique because it has information such as the date and time of production of the disc, production capacity, and serial number. For this reason, using the disc ID, various types of disc information relating to the content data recorded on the optical disc 17, such as a recorded program name, are associated with the disc ID and stored in the storage device in the optical disc recording / reproducing apparatus 10. Save to disk When the disk ID is detected by the ID detecting section 16, the disk information corresponding to the detected disk ID is read, so that the disk information can be provided to the user in various forms.
- TOC Table of Contents
- the TOC information is read from the optical disc 17 to refer to it, thereby detecting an empty area of the optical disc 17 (S12), and then proceeding to step S16.
- the absence of TOC information means that the optical disk 17 has not been initialized (formatted) or has been specially formatted. In any case, since the empty area of the optical disk 17 cannot be grasped, the user is determined whether or not to initialize the optical disk 17 (S13).
- the optical disk 17 is initialized (S14). At this time, naturally, the free space of the optical disk 17 can be grasped.
- the process proceeds to step S16.
- the optical disk 17 is ejected (S15), and the recording control process is terminated.
- the recording time (hereinafter referred to as “recording time”) that can be continuously written to the free area.
- “Continuous writing possible time (data input available time)”. ) Is calculated from the capacity of the empty area (S16), and thereafter, the processing returns to the recording control processing shown in FIG.
- the recording capacity of the free space which is purely the capacity to record only video information
- variable transfer rate method In the recording of moving images, there are a fixed transfer rate method in which the data transfer rate of the moving image is fixed at a predetermined value, and a variable transfer rate method in which the data transfer rate can be changed depending on the image.
- variable transfer rate method if the time is long enough, the data transfer rate converges to the average, but the estimated capacity may be exceeded depending on the video. Considering this point, in the case of variable transfer rate, it is desirable to set the recording time with some margin.
- the buffer memory 20 with sufficient capacity is installed as described above. If so, recording is possible.
- the recording reservation processing shown in FIG. 5 is performed. First, the process waits until the user inputs a recording channel and a time zone via the user operation unit 14 (S20).
- the recording time (data input time) is obtained from the input recording time period (S21).
- the recording time obtained in step S 21 is obtained.
- An empty area having a longer continuous writable time is selected (S22).
- the capacity the area that is close to the required capacity or the largest area
- the address the area closest to the first area in terms of travel time
- the recording start address (position) and the recording end address are designated based on the recording time in the selected empty area (S23). Then, the process returns to the recording control process shown in FIG.
- step S20 When the program is immediately recorded by pressing the recording button, instead of step S20 shown in FIG. 5, a step of acquiring the scheduled recording end time by inputting a request to the user or referring to the EPG is performed. Steps and other steps (S21 to S23) are performed in the same manner. As a result, the recording time can be obtained, and the recording start address and the recording end address on the optical disc 17 can be determined.
- the recording of program A starts immediately before the recording of program B starts, it is desirable to specify the recording start address of program B downstream of the recording end address of program A.
- the recording start address of program B can be obtained from the recording end address of program A.
- the recording end address of program B can be obtained from the recording time of program B, similarly to program A.
- the recording execution processing shown in FIG. 6 is performed. First, it is determined whether or not a recorded program has been added (S30). If a recorded program has been added, the storage area of the buffer memory 20 is stored for each recorded program. Divide (S31). Next, it is determined whether or not the recorded program has ended (S32). If the recorded program has ended, the recording information is written into the TOC, and then the buffer memory 2 corresponding to the recorded program to be ended is written. The storage area of 0 is released and allocated to the remaining recorded programs (S33).
- the data of the recorded program is recorded on the optical disk 17 (S36).
- S37 it is determined whether or not to end the recording (S37). If the recording is to be ended, the recording information is written to the TOC, and the process returns to the recording control process shown in FIG. The process ends.
- step S35 After step S35 or if the recorded program is not to be ended in step S37, the process returns to step S30 and repeats the above operations.
- FIG. 7 shows an example of a recording state on the optical disk 17 when the recording is completed by performing the above operation.
- the end position of program A does not overlap the start position of program B.
- the data of each program is recorded in a continuous recording area.
- the seek operation of the pickup only occurs when the recording area is switched during recording and when the recording interruption position is accessed, so the number of seeks of the pickup during recording is reduced.
- the number of times required is the minimum, and simultaneous recording of programs using the buffer memory 20 becomes possible.
- the number and time of the seek operation of the pickup can be minimized when two programs are recorded simultaneously. Thereby, for example, the capacity of the buffer memory 20 can be reduced.
- pick-up seek operations will increase in simultaneous recording and playback of multiple programs.
- the time required for operations other than recording also increases, and the buffer memory 20 that temporarily stores the data of the program being simultaneously recorded or played back overflows, causing simultaneous playback, simultaneous recording, and chasing playback. Etc. may not be supported.
- the data recording method can be recorded on a computer-readable recording medium that records a program to be executed by a computer, and the processing can be executed. This makes it possible to carry and freely provide a recording medium on which a program for executing the data recording method is recorded.
- a memory for processing by a microcomputer, such as a ROM, may be a program medium, or an external storage device (not shown).
- a program reader is provided, which can be read by inserting a recording medium into it. It may be a functional program medium.
- the stored program is configured to be accessed and executed by the microprocessor. Further, it is preferable that the program is read, and the read program is downloaded to a program storage area of a microcomputer and the program is executed. The download program is stored in the main unit in advance.
- the above-mentioned program medium is a recording medium that is configured to be separable from the main unit, such as a tape system such as a magnetic tape or a cassette tape, a magnetic disk such as a floppy (registered trademark) disk or a hard disk, or a CD_R.
- Disk system for optical disks such as OM / MO / MD / DVD, IC card (including memory card) Card system such as Z optical card, mask ROM, EPR OM (Erasable Programmable Read Only Memory), EEPRO (Electrically Erasable Programmable Read Only Memory), and a recording medium for fixedly storing a program including a semiconductor memory such as a flash ROM.
- the recording medium is a recording medium that carries the program fluidly so that the program can be downloaded from the communication network. Further, when downloading a program from a communication network in this way, it is preferable that the program for downloading be downloaded from a storage medium in advance or installed from another recording medium.
- the optical disk 17 such as a DVD has been described as a recording medium.
- a magneto-optical disk such as an MO (Magneto Optical Disk) or an HD (Hard Disk) may be used.
- a randomly accessible recording medium such as a magnetic disk can be used.
- the content data is an example of the type of data recorded on the optical disk 17, and is not limited thereto.
- step S16 shown in FIG. 4 instead of calculating the continuous writable time from the free space, in step S22 shown in FIG. 5, necessary storage of the program is performed based on the acquired recording time. It is also possible to calculate the capacity and select a free area having a larger storage capacity than the calculated required storage capacity.
- an HDD having an access speed higher than that of the optical disk 17 can be used instead of the buffer memory 20
- the program recording method of the recording device is a program recording method of a recording device capable of simultaneously recording a plurality of programs input from a plurality of sources, wherein a recording start time and a recording end time information are recorded between a plurality of sources. Detecting the presence or absence of an overlapping recording time slot; and, if an overlapping recording time slot exists, a program whose recording start time is earlier is regarded as a first program; Next, the step of selecting the program with the earliest recording start time as the second program, the step of obtaining the recording start address information and the recording time of the first program, and the step of selecting the recording start address information and the recording From time to time
- a method may be provided that includes a step of calculating recording end address information on the first program, and a step of determining a recording start address of the second program based on the recording end address.
- the control means such as the CPU detects the presence or absence of a program whose recording time overlaps based on the recording information stored in the storage means such as the memory. More specifically, based on information such as the recording start time and recording end (planned) time of each recorded program, the programs whose recording time overlaps are extracted.
- the recording start time is compared between the programs, and the program with the shortest recording start time is set as the first program.
- the early program is the second program. If the recording start time is the same, the program reserved for recording first is regarded as the first program.
- the recording time is obtained from the recording reservation information.
- the recording time can be calculated by subtracting the recording start time from the recording end time.
- the recording start position (address) is obtained from the recording information of a recording medium such as an optical disk.
- variable rate method is used as an encoding method for converting analog data such as terrestrial data into digital data such as a DVD, that is, a data transfer rate in a scene with rapid movement.
- analog data such as terrestrial data
- digital data such as a DVD
- the average transfer rate can be set, but the recording end position fluctuates.
- Video recording and playback rates can also be controlled. For example, if the transfer rate is changed while constantly calculating the remaining recording capacity or at regular intervals (for example, every 5 minutes), it is possible to record programs within the set capacity.
- the control means converts the calculated recording time into a recording capacity, and calculates a recording end position (address) for the first program.
- the recording start position for the second program is determined based on the recording end position, and when the recording start time of the second program comes, the recording is started from the recording start position.
- the recording end position of the program whose recording is started first is obtained by calculation, and the recording start position of the second program is determined on the basis of the recording end position.
- the recorded data of the first program is not divided by the recorded data of the second program.
- the recording of the first program is continuously performed with the recording start address of the first program as a start point.
- the recording of the second program is performed continuously with the recording start address of the second program as a starting point, so that both the first and second programs are continuously recorded. Since recording can be performed, data of the same program (content) does not disperse on an optical disk, and a recording area can be used efficiently.
- the data of the program to be recorded is continuously recorded on a recording medium without being divided by other program data. Thus, the program recording start position on the medium can be determined.
- the recording start position of the additional recorded program is determined based on this. Is possible.
- a recording area is determined in advance according to the contents of the program to be recorded, and a recording area corresponding to the above contents can be continuously recorded in the above area. You can also.
- the recording area is determined according to the content of the program, for example, drama, sports, movie, etc., so that it is possible to continuously record the program in each of the previously separated and set areas. I can do it. Since the area is reserved in advance, there is no need to calculate the start position of a program from the recording time of another program. Since the program content is also included in the EPG information, it is effective to use EPG when adding a recording.
- the recording medium is a recording medium on a disk and the recording is performed over multiple layers and the recording of multiple programs is set at the same time
- the recording layer may be changed for each program to secure and record a continuous recording area.
- the pickup does not move between the layers in at least one program, so that the track jump and the interlayer movement in the same program are eliminated, so that the buffer memory is not used. It is possible to improve the use efficiency and reduce the cost of the drive by reducing the size of the mounted memory. Further, in the data recording method of the recording device of the present invention, in the above method, the recording device should record on the recording medium.
- an assignment step of allocating a storage area of the temporary storage means to each of the data is included.
- a buffer memory is typical, but if the access speed, the write speed, and the read speed are higher than those of the recording medium, any storage device or recording device can be used. Can be used.
- the recording medium is an optical disk
- temporary storage means such as a hard disk that has a higher access speed, write speed, and read speed than an optical disk, or a semiconductor memory such as a DRAM (Dynamic Random Access Memory). It can be used as
- the storage area of the temporary storage means is allocated to each data.
- a part of any data is recorded on the recording medium, a part of the remaining data can be temporarily stored in the temporary storage means. Therefore, before the data overflows from the temporary storage means, If data is read from the column and recorded on the recording medium, it is possible to prevent the loss of other data that is input at the same time, and to more reliably prevent the data from being unrecordable. it can.
- the data input is a time required for inputting a data amount corresponding to the recording capacity of the continuous free space detected in the detecting step.
- the broadcast time is more easily acquired by EPG or the like than the program data amount. That is, the distribution time, the transmission time, or the broadcast time is more easily acquired than the data amount of the program data distributed, transmitted, or broadcast from various types of information media. As described above, in some cases, the data input time can be more easily obtained than the data amount of the data input to the recording device.
- the recording capacity of the free space is calculated in the calculating step based on, for example, the transmission rate of program data transmitted from the information medium, that is, the input rate of data input to the recording device.
- the selection step a vacant area having a longer data input time than the data input time is selected for each data.
- the available data input time is calculated by dividing the recording capacity of the free space by the data transmission speed (input rate). Therefore, since an empty area is selected from the data input time, it is possible to cope with a case where information on the data input time can be easily obtained.
- the selecting step may include, among the plurality of data inputted simultaneously, a vacant space in which data to be recorded earlier is recorded temporally first. An empty area for each data may be selected so that data to be recorded later is recorded in an empty area downstream of the area.
- the data input first is recorded in an empty area on the upstream side.
- the data to be input later is recorded in the free space on the downstream side.
- recording is performed in the recording area of the recording medium in order from the upstream side, so that the possibility of occurrence of a narrow empty area or division of the empty area is reduced, and the recording medium is Data can be recorded efficiently.
- the present invention is particularly effective when the entire recording area is a free area, such as immediately after initialization.
- the data recording method of the recording apparatus of the present invention is the above-mentioned method.
- the selecting step includes: The type of data acquired in the data type acquisition step is W
- a free area having a recording capacity larger than the data amount of the data may be selected for each data.
- the data type includes, for example, the contents of a program such as news, sports, drama, documents, and movies when the data is program data obtained by television broadcasting. It is also possible to classify by input such as terrestrial tuner and BS tuner. By the way, when reading a plurality of data from a recording medium, the data is often read for each type of data rather than in the order in which the data was recorded. Thus, according to the above method, data of the same type is recorded in a nearby recording area, so that data can be read efficiently.
- the detecting step when the recording medium has a plurality of recording layers, the detecting step includes: setting a continuous empty area in each recording layer of the recording medium.
- the detection step may be used.
- data is recorded in a continuous free area of a certain recording layer, so that data is not recorded in a continuous free area over a plurality of recording layers. Therefore, the seek of the pickup does not occur in the recording area where each data is recorded, so that it is possible to surely prevent the simultaneous input data from being unable to be recorded.
- the data recording method of the recording apparatus of the present invention is the above-mentioned method.
- the empty area selected in the selection step may be selected from different recording layers. According to the above method, a plurality of data that are input simultaneously are recorded on a plurality of recording layers.
- a pickup when recording a plurality of data on a single recording layer, a pickup records a part of a certain data in a certain continuous recording area, and then jumps over the continuous recording area to another one. It is moved to a continuous recording area, and then a part of another data is recorded.
- a pickup is performed after recording a part of a certain data in a certain continuous recording area of a certain recording layer, and then recording on another recording layer.
- the laser power, aberration correction, etc. are adjusted according to the interlayer movement, and the recording layer is moved to a continuous recording area, and then another part of the data is recorded. .
- the recording medium is an optical disk having a plurality of recording layers, such as a DVD
- a time for adjusting the focus of the optical pickup to another recording layer and the above adjustment time are required. It becomes.
- the control is performed so that the radial recording positions on a plurality of recording layers are substantially the same, the amount of movement of the optical pickup during a seek operation after switching to recording on another recording layer is reduced. Less. At this time, since the time required for the seek operation is reduced, the data input at the same time cannot be recorded. Can be more reliably prevented.
- the above method is effective when a plurality of data are recorded on a single recording layer, because the longer the distance over which a pickup jumps over a continuous recording area, the more effective the pickup is. It is effective that the data length is extremely large, such as content data such as video, audio, and so on.
- the recording apparatus of the present invention in the above configuration, further includes a temporary storage unit for temporarily storing partial data which is a part of data to be recorded on the recording medium, wherein the recording control unit In the case where the data is simultaneously inputted and recorded, it may include an allocating means for allocating the storage area of the temporary storage means for each of the data.
- the storage area of the temporary storage unit is allocated to each data.
- the remaining data can be temporarily stored in the temporary storage means. Therefore, if data is read from the temporary storage means and recorded on the recording medium before the data overflows from the temporary storage means, it is possible to prevent the loss of other data which is input at the same time. This makes it possible to more reliably prevent the data from being unrecordable.
- the data input available time which is the time required for inputting the data amount corresponding to the recording capacity of the continuous free area detected by the detection means, is set to be free.
- the information processing apparatus further includes: a calculating unit that calculates for each area; and an obtaining unit that obtains a data input time that is a time at which the data is input.
- the selecting unit can input the data calculated by the calculating unit. Time and the data acquired by the acquisition means. Based on the data input time, an empty area having a data input available time longer than the data input time may be selected for each data.
- the calculating means converts the recording capacity of the free area into the data input available time, and the selecting means selects a free area having a data input available time longer than the data input time for each data. Therefore, since an empty area is selected from the data input time, it is possible to cope with a case where information on the data input time can be easily obtained.
- the selecting means may include, among the plurality of data inputted simultaneously, a downstream side of an empty area in which data to be recorded earlier in time is recorded. An empty area for each data may be selected so that data to be recorded later is recorded in the empty area.
- data input first is recorded in an empty area on the upstream side, and data input later is recorded in an empty area on the downstream side.
- the data is recorded in the recording area of the recording medium in order from the upstream side, so that the possibility of occurrence of a narrow empty area or division of the empty area is reduced, and the data is recorded on the recording medium.
- the present invention is particularly effective when the entire recording area is a free area, such as immediately after initialization.
- the recording apparatus of the present invention in the above configuration, includes a free area allocating means for allocating a free area detected by the detecting means for each type of data, and a data type obtaining means for obtaining the type of input data.
- the selection means further includes: a data type acquired by the data type acquisition means, and a vacant area assigned by the vacant area allocating means. From among the areas, an empty area having a recording capacity larger than the data amount of the above data may be selected for each data.
- the data can be read efficiently as described above.
- the detecting unit detects a continuous empty area in each recording layer of the recording medium. It may be.
- the empty area selected by the selection unit may be selected from a different recording layer.
- the amount of pickup movement during the seek operation may be smaller than when a plurality of data are recorded on a single recording layer. Since the time is reduced, it is possible to more reliably prevent the data input at the same time from becoming unrecordable.
- the recording medium is an optical disk having a plurality of recording layers such as a DVD
- a time for adjusting the focus of the optical pickup to another recording layer and the above adjustment time are required. It becomes. I W
- the data is data having an extremely large data length, such as content data such as video and audio.
- the data recording method of the recording device of the present invention the recording device, the data recording program, and the recording medium on which the program is recorded record a plurality of data that are input simultaneously. It is possible to prevent the recording from being disabled when recording on a medium.
- the present invention can be suitably used in the manufacturing industry of a recording device of a randomly accessible recording medium, such as an optical disk such as DVD and BD, a magneto-optical disk such as MO, and a magnetic disk such as HD.
- a recording device of a randomly accessible recording medium such as an optical disk such as DVD and BD, a magneto-optical disk such as MO, and a magnetic disk such as HD.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003289150A AU2003289150A1 (en) | 2002-12-18 | 2003-12-03 | Recorder data recording method, recorder, data recording program, recorded medium on which the program is recorded |
US10/539,933 US20060080496A1 (en) | 2002-12-18 | 2003-12-03 | Recorder data recording method recorder, data recording program, recorded medium on which the program is recorded |
DE10393934T DE10393934T5 (de) | 2002-12-18 | 2003-12-03 | Datenaufzeichnungsverfahren für ein Aufzeichnungsgerät, Datenaufzeichnungsprogramm und Aufzeichnungsmedium zum Speichern des Datenaufzeichnungsprogramms |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-367305 | 2002-12-18 | ||
JP2002367305A JP3913673B2 (ja) | 2002-12-18 | 2002-12-18 | 記録装置のデータ記録方法、記録装置、データ記録プログラム、および該プログラムを記録した記録媒体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004055812A1 true WO2004055812A1 (ja) | 2004-07-01 |
Family
ID=32588339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/015495 WO2004055812A1 (ja) | 2002-12-18 | 2003-12-03 | 記録装置のデータ記録方法、記録装置、データ記録プログラム、および該プログラムを記録した記録媒体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060080496A1 (ja) |
JP (1) | JP3913673B2 (ja) |
CN (1) | CN1729533A (ja) |
AU (1) | AU2003289150A1 (ja) |
DE (1) | DE10393934T5 (ja) |
WO (1) | WO2004055812A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8929722B2 (en) | 2004-09-22 | 2015-01-06 | Panasonic Corporation | Recording/reproducing device |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006040382A (ja) * | 2004-07-27 | 2006-02-09 | Sony Corp | デジタルデータの記録装置および記録方法 |
JP2006138968A (ja) * | 2004-11-11 | 2006-06-01 | Clarion Co Ltd | データ処理装置及びその制御方法 |
JP2006217343A (ja) * | 2005-02-04 | 2006-08-17 | Toshiba Corp | 信号処理装置および録画方法 |
JP2008010118A (ja) * | 2006-06-30 | 2008-01-17 | Toshiba Corp | データ記録方法及びデータ記録装置 |
JP2009170090A (ja) * | 2009-04-21 | 2009-07-30 | Sharp Corp | 番組タイトル表示部付記録再生装置 |
JP2011123983A (ja) * | 2009-12-14 | 2011-06-23 | Ryosuke Terusawa | 複数同時録画機 |
JP5676939B2 (ja) * | 2010-06-29 | 2015-02-25 | キヤノン株式会社 | 画像処理装置及びその制御方法並びにプログラム |
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US4970608A (en) * | 1988-03-18 | 1990-11-13 | Olympus Optical Co., Ltd. | Editing system for rearranging allocation of information units on an information recording medium |
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- 2002-12-18 JP JP2002367305A patent/JP3913673B2/ja not_active Expired - Fee Related
-
2003
- 2003-12-03 CN CNA2003801067920A patent/CN1729533A/zh active Pending
- 2003-12-03 US US10/539,933 patent/US20060080496A1/en not_active Abandoned
- 2003-12-03 DE DE10393934T patent/DE10393934T5/de not_active Ceased
- 2003-12-03 WO PCT/JP2003/015495 patent/WO2004055812A1/ja active Application Filing
- 2003-12-03 AU AU2003289150A patent/AU2003289150A1/en not_active Abandoned
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JPH09259527A (ja) * | 1996-03-19 | 1997-10-03 | Pioneer Electron Corp | 情報記録媒体及びその情報記録装置 |
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Also Published As
Publication number | Publication date |
---|---|
DE10393934T5 (de) | 2005-11-03 |
CN1729533A (zh) | 2006-02-01 |
US20060080496A1 (en) | 2006-04-13 |
AU2003289150A1 (en) | 2004-07-09 |
JP2004199789A (ja) | 2004-07-15 |
JP3913673B2 (ja) | 2007-05-09 |
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