JP4095165B2 - Video recording apparatus and computer-readable recording medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a video recording apparatus suitable for use in a video camera or the like for recording a moving image or a still image on a solid magnetic disk memory, a magneto-optical disk memory, an optical disk memory or the like.
[0002]
[Prior art]
As a conventional video recording / reproducing apparatus, there is a video tape recorder that records an analog video signal on a magnetic tape. For such a magnetic recording / reproducing apparatus, after converting the video signal into a digital signal, the digital VTR for recording on a magnetic tape, the disk video for recording on a solid disk or a magneto-optical disk, the solid memory such as a flash memory or SRAM, etc. Solid-state memory video to be recorded has been proposed. In these video systems, the input digital signal is compressed to reduce the amount of information, and a large amount of moving image information and still image information can be recorded with a small storage capacity.
[0003]
In general, the compression method of such a video recording apparatus first divides an image into a plurality of blocks for each of horizontal n × vertical n pixels, and performs orthogonal transform such as discrete cosine transform (DCT) for each block. And quantize each coefficient by rounding it to a predetermined number of bits. Since image information is biased toward low frequencies, the amount of data can be reduced by reducing the number of high-frequency component bits. Further, data compression corresponding to the appearance probability can be performed by variable length coding such as Huffman coding. Furthermore, since the video image has a strong correlation between frames, extraction of the difference between frames using this property makes it possible to significantly compress the video. Various moving image recording systems have been proposed in which moving images are compressed by combining these compression techniques to reduce the amount of data and then record in a solid magnetic disk memory, an optical disk memory or the like.
[0004]
[Problems to be solved by the invention]
In the above-described moving image recording system, since the amount of moving image data per unit time is large, it is necessary to input / output data to / from the disk memory as fast as possible. However, if you record and erase a movie several times, the erased empty space in the memory and the recorded data will be fragmented. There were problems such as data input / output becoming difficult.
[0005]
The present invention has been made to solve the above-described problems, and an object of the present invention is to always ensure a space in which video data can be continuously recorded on a recording medium.
[0006]
[Means for Solving the Problems]
  The present inventionInput movieImage informationVideo recording apparatus for recording on a recording mediumBecause,Data control means for performing rearrangement for changing the recording position of the video information recorded on the recording medium based on an operation of a predetermined switch, and distribution of data recorded areas and data unrecorded areas on the recording medium An identifying means for detecting a state and identifying video information to be rearranged; and a setting means for setting the number of times the rearrangement is performed at a time. The data control means is identified by the identifying means. Relocation related to the video information is divided into multiple times by the number of times set by the setting meansTo doIt is characterized by.
[0007]
  Further, the present invention provides data for rearranging a computer that records input video information on a recording medium to change a recording position of the video information recorded on the recording medium based on an operation of a predetermined switch. A control procedure, an identification procedure for identifying video information to be rearranged by detecting a distribution state of data recorded areas and unrecorded areas on the recording medium, and the number of times the rearrangement is performed at one time. A computer-readable recording medium storing a program for executing a setting procedure to be set, wherein in the data control procedure, the relocation relating to the video information identified in the identification procedure is performed the number of times set in the setting procedure. It is a computer-readable recording medium characterized by being divided into multiple times and executedFeatures.
  The present invention is also a video recording method in a video recording apparatus for recording input video information on a recording medium, and the recording position of the video information recorded on the recording medium based on an operation of a predetermined switch A data control step for performing rearrangement for changing the data, an identification step for detecting the distribution state of the data recorded area and the data unrecorded area on the recording medium, and identifying video information to be rearranged, and A setting step for setting the number of times the rearrangement is performed at one time. In the data control step, the rearrangement relating to the video information identified in the identification step is divided into a plurality of times by the number of times set in the setting step. It is characterized by executing.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
  FIG. 1 is a diagram showing the configuration of the first exemplary embodiment of the present invention. In FIG. 1, the video signal of the subject 110 photographed by the video camera 101 is input to the adder 108 and to the data compression circuit 102.As recording means or data control meansThe data compression circuit 102 compresses data at a compression rate and timing instructed from a microcomputer (hereinafter referred to as a microcomputer) 104 as a control means, and records it on a hard disk 103 as a recording medium or memory means. The microcomputer 104 selects and deletes the video data recorded on the hard disk 103 based on the state of the video selection switch 105 and the video deletion switch 106. Next, optimization is performed by rearranging the data arrangement of the hard disk 103 as described later. The video selection, video erasure, and rearrangement states are generated by the character generator 107 and mixed with the video signal from the video camera 101 by the adder 108.As a display meansIt is displayed on the display 109. Reference numeral 111 denotes a memory as a computer-readable recording medium according to the present invention, and a semiconductor memory, a magnetic medium, a magneto-optical disk, an optical disk, a CD-ROM, or the like is used, which will be described later with reference to FIGS. A program for executing the processing shown in the flowchart by the microcomputer 104 is stored.
[0009]
Next, optimization by data arrangement and data rearrangement on the hard disk 103 will be described with reference to FIG. FIG. 2A shows the data arrangement of the hard disk 103. The hard disk 103 is concentrically arranged from the outside with track 1, track 2, track 3, track 4, track 5 and recording track, and each track is further divided into sectors 1 to 8. In the data, each cut of the video is recorded on the hard disk 103 in units of sectors. Hereinafter, it is assumed that one sector of the first track is represented as sector 11 and five sectors of the third track are represented as sector 35.
[0010]
FIG. 2B is a diagram showing how the video is recorded in each sector when the video is recorded on the hard disk 103. When video data is recorded on the hard disk 103 on which nothing is recorded, it is recorded in order from sector 1 (sector 11) of track 1. Accordingly, first, video 1 that requires a recording capacity of 6 sectors is recorded using the areas from sectors 11 to 12, 13, 14, 15, and 16. Next, the video 2 requiring a storage capacity of 3 sectors is stored in the sector 21 after proceeding to the sectors 17 and 18 and the second track. Furthermore, video 3 requiring a storage capacity of 4 sectors is stored in sectors 22, 23, 24, 25 and completed. In the following, when another video is continuously stored, the video is similarly stored in a continuous arrangement on the hard disk.
[0011]
Now, if the video 2 is deleted (erased) with the video 1, 2, and 3 written, the data in the sectors 17, 18, and 21 are deleted, and this portion becomes empty. Next, when video 4 requiring a storage capacity of 5 sectors is written, it becomes discontinuous with sectors 17, 18, 21, 26, and 27, and the recording and playback speed of the hard disk becomes slow. Therefore, after deleting the sectors 17, 18, and 21, the data is rearranged to optimize the hard disk. Although the video 1 remains as it is, the video 3 written from the sector 22 to the sector 25 is moved to the sectors 17, 18, 21, and 22, as shown in FIG. As a result, the next time video 4 that requires a storage capacity of 5 sectors is recorded, the sectors 23, 24, 25, 26, and 27 are continuously written on the hard disk.
[0012]
FIG. 3 is a flowchart showing the operation of the microcomputer 104, and includes steps S301 to S310. Each of these steps S301 to S310 is performed according to a program recorded in the memory 111. FIG. 4 is a diagram showing a display operation during the above processing.
In FIG. 3, starting from step S301, first, a video number is displayed on the display 109 through the character generator 107 (S302). For example, as shown in the screen 1 in FIG. Next, it is checked whether or not the video selection switch 105 is pressed (S303). If it is pressed, the video number is incremented (S305), and a new video number is displayed (S306). For example, as shown in screen 2 in FIG. 4B, “video number: 2” is incremented and displayed.
[0013]
  If the video selection switch 105 is off in step S303, it is checked whether or not the video erasure switch 106 has been pressed (S304). If it has been pressed, the video of the currently displayed video number is deleted (S307). ), A display during video erasure is displayed (S308). For example, as shown in the screen 3 in FIG. 4C, “video number: 2: erasing” is displayed. Immediately after this, optimization is performed by rearranging the data on the hard disk 103 as described above (S309). At this time, an indication that optimization is being performed is displayed (S310). For example, as shown in the screen 4 in FIG. 4D, “data optimization in progress” is displayed to inform the user. As an algorithm for this rearrangement, for example, a method of copying a video signal once to an empty area of a hard disk and then copying it to an empty area to be rearranged (may be a video unit or a sector unit), or an empty area sequentially from the beginning Various methods, such as a method of writing data in the file, can be considered. Relocation processing(Video information rearrangement process)As the temporary data storage memory, other memory may be used instead of the hard disk, and it is sufficient for the work memory to be one sector.
[0014]
(Second and third embodiments)
FIG. 5 is a diagram showing the configuration of the second and third embodiments. The same reference numerals as those in FIG. In FIG. 5, a switch 501 is a main power switch. By turning on this switch, the microcomputer 104, the switch 502, and the switch 503 are energized. A switch 502 is a power switch and notifies the microcomputer 104 of the switch state. The switch 503 is controlled by the microcomputer 104 and supplies power to the video camera 101, the data compression circuit 102, the hard disk 103, the character generator 107, the display 109, and the like.
[0015]
FIG. 6 is a flowchart showing the operation of the second embodiment. Starting from a state where the power is cut off (S601), when the switch 501 is turned on (S602), the microcomputer 104 is energized (S603). The microcomputer 104 checks the state of the switch 502 (S604). If it is off, it continues to check the state of the switch 502. If it is on, the switch 503 is turned on (S605). (S606).
[0016]
When the power of each unit is turned on, the system is initialized (S607), and then optimized by rearranging the data on the hard disk 103 (S608). At this time, a display indicating that optimization is being performed is displayed (S609). Thus, preparation for shooting or reproduction is completed (S610).
[0017]
FIG. 7 is a flowchart showing the operation of the third embodiment. Starting from a state in which the power supply is energized (S701), and when the switch 501 is turned off (S702), optimization is performed to immediately rearrange the data on the hard disk 103 (S703). A message to that effect is displayed (S704). When the optimization is completed, the microcomputer 104 turns off the switch 503 and turns off the power of each unit other than the microcomputer (S705).
[0018]
According to each embodiment described above, when an empty space is generated between data on the hard disk 103 due to erasure or the like, rearrangement is performed so as to fill the empty space by filling the subsequent data. Since optimization is performed, data is always recorded continuously.
[0019]
(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described.
In the present embodiment, when the power source is an AC power source, and in the case of a battery, data optimization processing is performed when the remaining amount is sufficient.
[0020]
FIG. 8 is a block diagram showing a configuration of the fourth exemplary embodiment of the present invention.
In the figure, the video signal output from the video camera 101 is supplied to the data compression circuit 102, is compressed with the compression rate and timing specified by the microcomputer 104 as the control means, and is supplied to the hard disk 103. .
[0021]
The video signal output from the video camera 101 is added by the adder 108 with control state information such as video selection, video erasure, and rearrangement output from the character generator 107 and displayed on the display 109.
[0022]
The power supply system will be described. The AC power source 801 can be selectively used by the switching operation of the power source selection switch 804 using the battery 803 and the AC adapter 802 for enabling the AC power source. This is supplied to the microcomputer 104 via the switch 501.
[0023]
  Also, the power selection switch 804(First identification means)Switch status indicating which power supply is selected by(Power status)The detection information is supplied to the microcomputer 104, and the voltage detection information of the power supply voltage is supplied to the microcomputer 104, and in particular, detection of power reduction when the battery is used is performed.
[0024]
Reference numeral 502 denotes a main power switch 501 that supplies power to the microcomputer 104. The power switch for controlling the power supply of the video camera system is turned on and off. Reference numeral 503 denotes a power switch for each circuit unit other than the microcomputer. A switch for supply, 105 is a video selection switch for selecting video information recorded on the hard disk 103, and 106 is an erasure switch for erasing the video information selected by the video selection switch 105.
[0025]
The operation of the video camera apparatus configured as described above will be described with reference to the flowchart of FIG.
[0026]
When the process starts in step S901, the state of the switch 502 is determined in step S902. If the switch 502 is switched from OFF to ON, the process proceeds to step S903, and the switch 502 is switched from ON to OFF. If changed, the process proceeds to step S922. If the switch 502 is on, the process proceeds to step S911.
[0027]
If the switch 502 is on, the number of the video information is displayed in step S911. If the video selection switch 105 is turned on in step S912, the process proceeds to step S920, the number of the video information is incremented, and a new one is added in step S921. The number of the correct video information.
[0028]
If the video selection switch 105 is off in step S912, the process advances to step S913 to detect the type of power supply, and if it is an AC power supply, the state of the video erasure switch 106 is determined.
[0029]
  On the other hand, in step S913, the type of power supply(type)Is a battery, it is determined in step S914 whether or not the voltage is equal to or higher than a predetermined value.(Predetermined level)If so, the process proceeds to step S915 to perform processing according to the instruction of the video erasure switch 105. If the power supply voltage is equal to or lower than the predetermined value, the process returns to step S902, and erasure is prohibited as a result.
[0030]
That is, by this process, when an AC power source is used and when the power supply voltage of the battery is equal to or higher than a predetermined value, the erasing operation is enabled.
[0031]
If the video erasure switch 106 is operated in step S915 and an instruction for erasing operation is issued, the process proceeds to step S916 to erase the video information of the current video number, and the video information is erased in step S917. In step S919, the data optimization process is performed in the same manner as described above. In step S919, the data optimization process is displayed, and the process returns to step S902.
That is, in this process, data optimization is performed every time video information is deleted.
[0032]
If it is determined in step S902 that the switch 502 has been switched from off to on, the switch 503 is turned on in step S903 to supply power to each circuit unit other than the microcomputer 104 (S904). ) In step S905, the system is initialized.
[0033]
In step S906, the type of power source is determined. If the power source type is AC power source, data optimization processing is performed in the same manner as described above in step S908, and data optimization processing is performed in step S909. Is displayed, and after completion of shooting / playback preparation in step S910, the process returns to step S902.
[0034]
If it is determined in step S906 that the power source is a battery, it is determined in step S907 whether or not the voltage is equal to or greater than a predetermined value. If the voltage is equal to or greater than the predetermined value, the process proceeds to step S908. The data optimization process is executed, and if the voltage has not reached the predetermined value, the data optimization process in step S908 is skipped, the preparation for shooting / reproduction in step S910 is completed, and the process returns to step S902.
[0035]
Next, the case where the switch 502 is switched from on to off in step S902 and the process proceeds to step S922 will be described.
In step S922, the type of power source is determined. If the power source type is AC power source, data optimization processing is performed in the same manner as described above in step S924, and data optimization processing is being performed in step S925. In step S926, the switch 503 is turned off, and the power supply to each circuit other than the microcomputer 104 is turned off.
[0036]
If it is determined in step S922 that the power source is a battery, it is determined in step S923 whether or not the voltage is equal to or higher than a predetermined value. If the voltage is equal to or higher than the predetermined value, the process proceeds to step S924. If the data optimization process is executed and the voltage has not reached the predetermined value, the data optimization process in step S924 is skipped, the process in step S926 is executed, and the process returns to step S902.
[0037]
With the above processing, data optimization can be executed when the power source is AC and when the battery level is sufficient, and it is possible to prevent power failure during the data optimization processing.
[0038]
(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. The present embodiment shows another example of the data optimization processing performed in steps S908, S918, and S924 in the flowchart of FIG. 9, and FIG. 10 shows a flowchart of the processing.
[0039]
In this embodiment, if the data optimization process is performed for all the discontinuous areas on the recording medium, a long processing time is required. Therefore, when the discontinuous areas are close to each other, the amount of movement of the pickup is small. Well, the access time is not so long, but when the discontinuous area is far away, the amount of movement of the pickup increases every time it is accessed, and the discontinuous area is relatively By optimizing only the data area that is more than a predetermined distance away, the time required for the data optimization process is reduced.
[0040]
  In the figure, when the process is started in step S930, the image file NO recorded in step S931 is set to 1, the process proceeds to step S932, and it is determined whether or not the file specified in step S931 exists. . If the designated file does not exist, the process proceeds to step S937 described later. If the specified file exists, the process proceeds to steps S933 and 934 to determine whether or not a discontinuous area exists in the data area constituting the file.(Second identification means)If there is no discontinuous area, the process proceeds to step S937.
[0041]
If there is a discontinuous area in step S934, the process proceeds to step S935, where it is determined whether or not the relative distance of the discontinuous portion is separated from the predetermined distance TH on the recording medium. Only when the distance is more than the above, the process proceeds to step S936, the video file data optimization is executed, and the process proceeds to step S937. If the relative distance of the discontinuous portion is equal to or smaller than the predetermined distance TH in step S935, the process proceeds to step S937 without performing the data optimization process.
[0042]
In the process of step S937, 1 is added to the file NO to specify the next file, and the process proceeds to step S938, where it is determined whether or not the data optimization process is necessary for all the files on the recording medium or the data optimization process is performed. It is determined whether or not the processing has been performed, and if the processing is completed for all the files, the process proceeds to step S939 to end the subroutine. If there is still an unprocessed file, the process proceeds to step S932. Returning to the process, the above process is repeated.
[0043]
  (Sixth embodiment)
  This embodiment also performs data optimization processing efficiently so as not to hinder the shooting operation.OneThis is done in a divided manner without spending too much time each time. In this embodiment, every file optimization process does not process all the files, but at a predetermined number of times (in this embodiment, three times).) One by oneIt is what I do.
[0044]
FIG. 11 is a flowchart showing processing in the present embodiment. In the figure, steps that perform the same processing as in the fifth embodiment in FIG. 10 are assigned the same reference numerals, and descriptions thereof are omitted.
[0045]
In the flowchart shown in the figure, the only difference from the flowchart shown in FIG. 10 is the processing in steps S951, 957, and S958.
[0046]
In step S951, 1 is input to a counter that counts the number of files to be subjected to data optimization processing. The processing in steps S932 to S936 is the same as that in FIG. In step S957, the file number is incremented by 1, and the contents of the counter are also incremented by 1.
[0047]
In step S958, if the number of files subject to data optimization processing, that is, the content of the counter reaches 4, the subroutine is exited and the process returns to the main routine. Note that the number of files for which data optimization processing is performed at a time can be changed by changing the number of times set in step S958.
[0048]
(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described. In FIG. 12, the same components as those of the fifth embodiment shown in FIG.
[0049]
8 differs from FIG. 8 in that a code amount measurement circuit 1001 is provided on the output side of the data compression circuit 102, and the result is supplied to the microcomputer 104, and the optimization execution is performed. A switch 1002 is provided so that the data optimization process can be executed at the operator's will. Also, the remaining amount of free space on the hard disk 103 is constantly managed by the microcomputer 104.
[0050]
The code amount measurement circuit 1001 determines the current recording data rate from the output signal output from the data compression circuit 102 and supplies it to the microcomputer 104, compares the free space of the hard disk 103, and determines the remaining recording time. The calculation is performed and displayed on the display 109 via the character generator 107, and a warning, a message, or the like that prompts the operator to perform data optimization processing according to the remaining time is displayed.
[0051]
FIGS. 15 (a) and 15 (b) respectively show display screens that display a disk remaining amount and a message prompting optimization.
[0052]
FIG. 13 is a flowchart showing the processing of this embodiment.
In the figure, when the process is started in step S1101, the hard disk remaining amount is displayed from the continuous free space on the hard disk 103 as shown in FIG. 15A in step S1102, and the state of the video selection switch 105 is displayed in step S1103. Is determined.
[0053]
If the video selection switch 105 is turned on in step S1103, the number of video information to be selected is increased in step S1105, a new video information number is displayed in step S1106, and the process proceeds to step S1109.
[0054]
If the video selection switch 105 is off in step S1103, the process proceeds to step S1104 to determine the state of the video erasure switch 106.
[0055]
If the video erasure switch 106 is off in step S1104, the process proceeds to step S1109. If the video erasure switch 106 is on, the process proceeds to step S1107, and the video information of the current video number is erased. In step S1108, the video information is erased. Is displayed, and the process proceeds to step S1109.
[0056]
In step S1109, a discontinuous data area is detected. If there is no discontinuous area in step S1110, the process returns to step S1102. If a discontinuous area exists, the process proceeds to step S1111 and the power supply is turned off. When the state is detected and the AC power source is used, and when it is determined that the power source is not the AC power source but the battery power source and the power source voltage is equal to or higher than the predetermined value in step S1112, the process proceeds to step S1113. The remaining capacity of the hard disk 103 when the data optimization process is executed is estimated, and a display prompting the execution of the data optimization process is performed in step S1114 (FIG. 15B).
[0057]
In step S1115, the operator determines the state of the optimization execution switch 1002 for executing the data optimization process. If the switch has been operated, the data optimization process is performed in step S1116. In step S1117, it is displayed that the data optimization process is being executed, and the process returns to step S1102.
[0058]
If the optimization execution switch 1002 is not operated in step S1115, and if the battery power supply voltage is less than the predetermined value in step S1112, the process returns to step S1102 without performing data optimization processing.
[0059]
  FIG. 14 is a diagram for explaining the operation of the data optimization process and the remaining amount display. In FIG. 6A, video 1 is recorded using sectors 11 to 16 on the hard disk 103, video 2 is recorded using sectors 17, 18, and 21, and video 3 is recorded to sectors 22 to 25. Is recorded using(Distribution state)Is shown. The remaining sector capacity is 27 sectors.
[0060]
Here, as shown in FIG. 4B, erasing video 2 causes empty sectors in sectors 17, 18, and 21.
[0061]
When a new video 4 is recorded in this state, as shown in FIG. 5C, the empty area after deletion of the video 2 is not used and is added to the end of the recording on the hard disk 103. Recording is done. In the figure, video 4 consisting of 5 sectors consisting of sectors 23 to 27 is recorded, and new recording is performed in the form of being added to the end of the hard disk 103 in view of the access efficiency.
[0062]
The reason is that the data is always recorded continuously from the end of the recorded sector in order to shorten the access time by recording in a continuous free area. When trying to write new recording information here, if the image information to be newly recorded cannot fit in the area, the pickup must be moved from there to another free area, so the access time becomes longer, This is because recording cannot be performed efficiently. Therefore, as shown in FIG. 5B, the remaining amount is displayed as 27 sectors without including a free space in the middle even if the video 2 is deleted.
[0063]
  In this state, when the video 4 is newly recorded as shown in FIG. 5C, the empty area after erasing the video 2 is not used, but added to the end of the recording on the hard disk 103. Recording is done. In the figure, video 4 consisting of 5 sectors consisting of sectors 23 to 27 is recorded, and as a result, the remaining sectors are displayed as 22 sectors. Recorded like this(Data recorded)Free space in the area by erasing(Data unrecorded area)Is not included in the remaining sector capacity for display.
[0064]
Here, FIG. 4D shows a case where the data optimization process is performed by preliminarily allocating data in empty sectors by data rearrangement. The recording sectors of video 3 and video 4 are shifted to empty sectors from which video 2 has been erased, and the empty areas are filled. This substantially increases the remaining sector capacity, and the display changes to 25 sectors.
[0065]
As described above, if an empty sector is created in the middle by erasing part of the video information, this area is not included in the remaining sector display, and the number of empty sectors increases after data optimization processing is performed. As a result, it is possible to prevent the operator from being misunderstood and to provide a camera with a short operability and a high reliability.
[0066]
Although the magnetic recording hard disk 103 is used as the recording medium in each embodiment, other optical disks, magneto-optical disks, magnetic tapes, flash memories, and RAMs may be used.
[0067]
【The invention's effect】
  As explained above, according to the present invention,, MovieWhen erasing image information, turning the power on, turning the power off, etc.The projectionBy re-arranging image information and performing sequential optimization, it is possible to repeat erasing and recording of moving images., MovieThe image information is not fragmented, and a continuous recording space can be secured on the recording medium.If the relocation process is not performed in a large amount at once, but divided and executed multiple times, it is possible to reduce the trouble of the recording operation due to the relocation process.. For this reason, the performance of the recording medium can be sufficiently obtained, and there is an effect that a high-quality moving image can be recorded / reproduced at high speed at a high data rate.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a first embodiment of the present invention.
FIG. 2 is a configuration diagram showing the operation of the first exemplary embodiment of the present invention.
FIG. 3 is a flowchart illustrating an algorithm according to the first embodiment of this invention.
FIG. 4 is a configuration diagram illustrating a display operation according to the first embodiment of this invention.
FIG. 5 is a configuration diagram showing second and third embodiments of the present invention.
FIG. 6 is a flowchart showing an algorithm of the second embodiment of the present invention.
FIG. 7 is a flowchart showing an algorithm according to the third embodiment of the present invention.
FIG. 8 is a configuration diagram showing a fourth embodiment of the present invention.
FIG. 9 is a flowchart showing an algorithm according to the fourth embodiment of the present invention.
FIG. 10 is a flowchart showing an algorithm according to the fifth embodiment of the present invention.
FIG. 11 is a flowchart showing an algorithm according to the sixth embodiment of the present invention.
FIG. 12 is a block diagram showing a seventh embodiment of the present invention.
FIG. 13 is a flowchart showing an algorithm according to the seventh embodiment of the present invention.
FIG. 14 is a diagram for explaining a remaining amount display according to a seventh embodiment of the present invention;
FIG. 15 is a diagram illustrating a remaining amount display example according to the seventh embodiment of the present invention;
[Explanation of symbols]
103 hard disk
104 Microcomputer
105 Video selection switch
106 Video deletion switch
107 Character generator
109 display
111 memory
501 Main power switch
1001 Code amount measurement circuit

Claims (16)

A video recording apparatus for recording movies image information input to the recording medium,
Data control means for performing rearrangement for changing the recording position of the video information recorded on the recording medium based on an operation of a predetermined switch;
An identification means for detecting the distribution state of the data recorded area and the data unrecorded area on the recording medium, and identifying video information to be rearranged;
Setting means for setting the number of times the above rearrangement is performed at a time,
The video recording apparatus according to claim 1, wherein the data control means executes the rearrangement relating to the video information identified by the identification means by dividing the rearrangement into a plurality of times by the number of times set by the setting means . Upper Symbol data control unit, when the empty space is generated between the movies image information and movies image information on said recording medium, characterized by the TURMERIC line the rearrangement so as to fill the empty space The video recording apparatus according to claim 1. Upper Symbol data control means, based on the operation of the switch for erasing movies image information the recording, erases the image information of interest, wherein, wherein the TURMERIC row on SL relocation Item 2. The video recording apparatus according to Item 1. Upper Symbol data control means, the image recording apparatus according to claim 1, wherein the TURMERIC line the relocation in accordance with the operation of the power-up switch of the video recorder. Above Symbol data control means, the image recording apparatus according to claim 1, wherein that you perform the rearrangement in response to the operation of the power-off switch of the upper SL video recording apparatus. Video recording apparatus according to claim 1, further comprising a display means for displaying information about the behavior of the relocation. Upper Symbol data control means, the image recording apparatus according to claim 1, wherein the TURMERIC line the relocation each movies image information units to be recorded over plural sectors on the recording medium. A power source identifying means for identifying the power source type of the apparatus body;
  2. The video recording apparatus according to claim 1, wherein the data control unit executes the rearrangement when the power source identified by the power source identification unit is an AC power source. A power source identifying means for identifying the power source type and remaining amount of the apparatus body;
  2. The data control unit according to claim 1, wherein when the power source identified by the power source identification unit is a battery, the data control unit executes the rearrangement when the remaining amount is equal to or higher than a predetermined level. Video recording device. 2. The video recording apparatus according to claim 1, wherein the data control means executes the rearrangement only on data recorded areas scattered outside a predetermined distance range. 11. The video recording apparatus according to claim 1, wherein the recording medium is a hard disk. In a computer that records input video information on a recording medium,
  A data control procedure for performing rearrangement to change the recording position of the video information recorded on the recording medium based on an operation of a predetermined switch;
  An identification procedure for detecting the distribution state of the data recorded area and the data unrecorded area on the recording medium and identifying the video information to be rearranged;
  A computer-readable recording medium storing a program for executing a setting procedure for setting the number of times the relocation is performed at once,
  The computer-readable recording medium characterized in that in the data control procedure, the rearrangement relating to the video information identified in the identification procedure is executed by being divided into a plurality of times by the number of times set in the setting procedure. 13. The data control procedure according to claim 12, wherein when an empty space is generated between video information on the recording medium, the rearrangement is performed so as to fill the empty space. Computer-readable recording medium. 13. The computer according to claim 12, wherein in the data control procedure, the target video information is erased and the rearrangement is performed based on an operation of a switch for erasing the recorded video information. A readable recording medium. 13. The computer-readable recording medium according to claim 12, wherein in the data control procedure, the rearrangement is performed according to an operation of a power-on switch of the computer. A video recording method in a video recording apparatus for recording input video information on a recording medium ,
A data control step for performing rearrangement to change the recording position of the video information recorded on the recording medium based on the operation of a predetermined switch;
An identification step of detecting the distribution state of the data recorded area and the data unrecorded area on the recording medium and identifying the video information to be rearranged;
A setting step for setting the number of times the above rearrangement is performed at a time,
In the data control step, the rearrangement relating to the video information identified in the identification step is executed by being divided into a plurality of times by the number of times set in the setting step .

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