JP2003092717A - Video recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video recording device capable of recording a past video image with a simple operation. SOLUTION: The video recording device including; a first storage means 23 for storing current video data and/or audio data; a second storage means 24 for storing video data and/or audio data reproduced from the first storage means 23; a copy range designation means 27 for designating a copy range of video data and/or audio data copied from the first storage means 23 to the second storage means 24; and a data copy control means 26 for copying video data and/or audio data from the first storage means 23 to the second storage means 24 on the basis of a command from the copy range designation means 27, is provided with an operation switch 20 for transmitting a command of the copy range to the copy range designation means 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video recording device capable of recording video by tracing back audio and / or image data in the past.

[0002]

2. Description of the Related Art In a video recording apparatus such as a digital video recorder integrated with a camera, for example, a CCD is used as an image pickup device, and a video signal obtained by shooting a moving image is recorded on a magnetic tape as digital video data.

A conventional video recording apparatus will be described with reference to FIG. As shown in FIG. 9, the conventional video recording device is
A lens system 1 for adjusting optical systems such as iris, focus, and zoom of an incident subject image, and this lens system 1
A CCD (Charge Couple) that converts the subject image illuminated by
d Device) 2 and a compression encoding circuit 3 for performing compression encoding of the field image data by using a motion vector and a DCT (Discrete Cosine Transform) from a digital audio signal from a microphone input (not shown) together with this digital image data. And a motion detection circuit 5 which detects a motion vector by comparing adjacent field image data in time series and thereby detects the motion of the field image data, and a recording signal which modulates the compression-coded field image data. And a processing circuit 6.

Further, a recording medium 8 for recording the compression modulation data output from the recording signal processing circuit 6 and data obtained by decoding the compression modulation data read from the recording medium 8 by a reproducing head (not shown) are output. A reproduction signal processing circuit 10, a decompression circuit 12 for decompressing this data to output reproduction image data, a terminal PB for inputting this reproduction image data and a terminal for inputting digital image data output from the CCD 2. Switch circuit 13 including REC and changeover switch SW for switching these terminals
And a lens system drive circuit 16 for driving the lens system 1, and a system controller 18 including a CPU, a RAM, a ROM and the like for controlling the entire system.

Furthermore, the liquid crystal monitor 11 for displaying the reproduced image data output from the decompression circuit 12 or the digital image data output from the CCD 2, the viewfinder 14 for directly looking at these reproduced image data, and the system controller 18 Key input section 1 for inputting settings
9 and a recording start / stop key 20 for inputting an instruction to start and end shooting. Further, a video output terminal 15 for inputting digital image data output from the CCD 2 or reproduced image data output from the decompression circuit 12 is provided.

Next, the operation of this video recording apparatus will be described. The subject image is projected onto the CCD 2 via the lens system 1. The CCD 2 converts the subject image into an electric signal and outputs the field image data at the field timing. The CCD 2 has a signal processing circuit (not shown), and further converts the converted electric signal into digital image data and outputs the digital image data. The number of pixels of the CCD 2 corresponds to the image size of the moving image area.

The image output of the CCD 2 is supplied to the terminal REC of the switch circuit 13 and at the same time, the compression encoding circuit 3
Also supply. The motion detection circuit 5 obtains a motion vector by comparing adjacent field image data in time series, and thereby detects the motion of the field image data. The compression encoding circuit 3 performs compression encoding of the supplied field image data using this motion vector and DCT (Discrete Cosine Transform).
The compression encoding method is MPEG (Moving Picture E).
xperts Group) 2 can be used.

The image output of the CCD 2 supplied to the terminal REC of the switch circuit 13 is such that the image being photographed by the CCD 2 is selected by selecting the terminal REC by the switch SW of the switch circuit 13 at the time of photographing (at the time of recording). It can be displayed on the liquid crystal monitor 11 and / or the viewfinder 14. Also, this image shows the video output terminal 15
It is also possible to display it on an external video monitor or the like.

Further, the image data compressed and encoded by the compression encoding circuit 3 is supplied to the recording signal processing circuit 6. The recording signal processing circuit 6 includes an error correction coding circuit, a recording amplifier,
It has a modulation circuit that is compatible with the recording method. The image data is subjected to error correction coding by a product code using, for example, Reed-Solomon code, and is converted into a signal suitable for recording through a predetermined modulation circuit and recording amplifier.

As the recording medium 8 for recording these data, various kinds of recording media can be applied as long as they have a suitable capacity and can record digital signals. For example, a recording medium such as a magneto-optical disc such as an MD (Mini Disc), a DVD (Digital Versatile Disc), a semiconductor memory, or a hard disk can be used. Of course, it is also possible to use a magnetic tape as the recording medium 8.

When an MD is used as the recording medium 8,
The recording data including the image data and the sub-code data is recorded by the recording signal processing circuit 6, for example, EFM (Eight
It is modulated by toFourteen Modulation) and supplied to a magnetic head drive circuit (not shown). Then, in this magnetic head drive circuit, a magnetic head drive signal is supplied to a magnetic head (not shown) according to the modulated recording data. That is, the N or S magnetic field is applied to the MD by the magnetic head (not shown). At this time, a recording-level laser beam is output by an optical head (not shown). This control of the laser light can be performed by, for example, the system controller 18 described later.

When a magnetic tape is used as the recording medium 8, the output of the recording signal processing circuit 6 is supplied to a recording head (not shown) and recorded on the recording medium 8 made of a magnetic tape by, for example, a helical scan method. Similarly, reproduction is performed by reading a signal recorded on the recording medium 8 by a reproduction head (not shown). The signal read here is supplied to the reproduction signal processing circuit 10.

The reproduction signal processing circuit 10 has a reproduction amplifier, a demodulation circuit compatible with the recording system, an error correction circuit, and the like. The signal reproduced from the recording medium 8 is converted into a signal suitable for digital processing through a reproduction amplifier or the like and supplied to an error correction circuit. The error correction circuit decodes the error correction code applied during recording. The decoded data is supplied to the decompression circuit 12, the compression encoding at the time of recording is released, and the reproduced image data is output. The output of the expansion circuit 12 is supplied to the terminal PB of the switch circuit 13.

At the time of reproduction, the terminal PB is selected by the switch SW of the switch circuit 13, and the reproduced image data from the recording medium 8 is derived to the video output terminal 15. At the same time, the reproduced image data is displayed on the LCD monitor 1.
1 and / or the viewfinder 14 for display.

The system controller 18 uses the CP
It is composed of U, RAM, ROM, etc., and controls the entire video recording apparatus. The key input unit 19 is a switch for making various settings of the video recording apparatus. Also,
The recording start / stop key 20 is used to instruct the start and end of shooting. When the terminal REC is selected in the switch circuit 13, the recording start /
Every time the stop key 20 is pressed, shooting is started and shooting is repeated.

[0016]

However, in the above-mentioned video recording apparatus, the subject image projected from the lens system 1 to the CCD 2 is only recorded at the timing when the recording start / stop key 20 is pressed. It was impossible to record the subject image retroactively.

To solve this problem, Japanese Patent Laid-Open No. 11-
Japanese Patent No. 234599 includes a first storage unit and a second storage unit for recording a video that goes back in the past, and always stores the video in the first storage unit and specifies that the video is to be recorded. There is disclosed a broadcast video recording device configured to store the broadcast video stored in the first storage unit at the time point in the second storage unit. Applying the same configuration to a video recording device such as a video tape recorder integrated with a camera as well as a VTR for broadcast recording is very convenient because it is possible to retrospectively record a decisive missed scene.

However, in the above invention, a complicated operation is required to specify the recording start time, and it cannot be performed easily. Since a video recording device such as a video tape recorder with a built-in camera always records a subject while following the subject with a lens, it is inconvenient because it is essential that the operation is easy and that the subject can keep his eyes on the subject.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a video recording apparatus capable of recording past video by a simple operation.

[0020]

According to a first aspect of the video recording apparatus of the present invention, there is provided a first storage means for storing current video data and / or audio data, and reproduction from the first storage means. Second storage means for storing video data and / or audio data, and a copy range for designating a copy range of the video data and / or audio data copied from the first storage means to the second storage means. Video recording provided with designation means and data copy control means for copying the video data and / or audio data from the first storage means to the second storage means based on a command from the copy range designation means. In the apparatus, there is provided a video recording device characterized in that an operation switch for sending a command of the copy range is provided to the copy range designating means. In a second aspect of the invention, the copy range designating means includes a counter means for counting the number of times the operation switch is pressed, a time storage means for recording the time at which the operation switch is pressed, and the second storage means. A time setting unit for setting the operation waiting time for starting the secondary recording mode, the number of times the operation switch is pressed, the time when the operation switch is pressed, and one operation of the operation switch can be traced back in the past. 2. A video recording apparatus according to claim 1, further comprising a copy range designation controller for designating the copy range based on a possible basic time set value. In a third aspect of the invention, the copy range designating means detects a return time detecting means for detecting a time during which the operation switch is pressed, a time storage means for storing a time at which the operation switch is pressed, and an operation discriminating time. Based on the operation determination time setting unit for setting, the time the operation switch is pressed, the time when the operation switch is pressed and the operation determination time,
A copy range designation controller for designating the copy range,
The video recording apparatus according to claim 1, further comprising: 4. The video recording according to claim 4, wherein the first storage means is a solid-state memory or a hard disk, and the second storage means is an optical disk or a tape-shaped medium. Provide a device.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION A video recording apparatus according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a block diagram showing a video recording device according to an embodiment of the present invention. FIG. 2 is a flowchart showing the procedure of the secondary recording operation according to the embodiment of the present invention. FIG. 3 is a flow chart for determining the secondary recording start point by the number of times the recording start / stop key is operated. Figure 4
FIG. 4 is a diagram showing copy range designating means used in the flowchart of FIG. 3. FIG. 5 is a flow chart for determining the secondary recording start point by the time when the recording start / stop key is operated. FIG. 6 is a diagram showing a copy range designating means used in the flowchart of FIG. FIG. 7 is a flowchart showing the procedure of data copying. FIG. 8 is a flowchart showing a procedure for determining the secondary recording end point.

The same components as those of the conventional example shown in FIG. 9 are designated by the same reference numerals, and the description thereof will be omitted. The video recording apparatus according to the embodiment of the present invention is the recording medium 8 in the conventional video recording apparatus.
Instead of the above, the primary recording medium 23 for recording the compression modulation data output from the recording signal processing circuit 6 and a part or all of the audio and image data accumulated in the primary recording medium 23 are recorded and saved, or The secondary recording medium 24 for directly recording and storing the compressed and modulated data, the normal recording mode terminal 25a for outputting the compressed and modulated data, and the secondary recording mode terminal for outputting the audio or image data accumulated in the primary recording medium 23. 25b and normal recording mode terminal 25a
And a switch 25 for switching the secondary recording mode terminal 25b
a recording mode changeover switch 25 composed of c,
Further, the system controller 18 is connected to the data copy control means 2
6 and a copy range designating means 27, and other than that is the same.

Since the primary recording medium 23 is used as a data buffer, it does not need to be removable, and a hard disk or solid-state memory is suitable because of its high bit rate and high random access performance. Random access speed of hard disk is several ms and bit rate is 30
Mbps to 100 Mbps, A of about 8 Mbps
It is sufficiently possible to record and reproduce V data at the same time.
Since solid-state memory is even faster, it can be used as long as the required capacity and cost are allowed. The required capacity is 8
It is 600 MB for accumulating audio and image data for 10 minutes at Mbps, which is a sufficiently realizable capacity even in a solid-state memory. The primary recording medium 23 is provided with a buffer memory or a buffer memory area (not shown) for intermittent recording / reproduction in the input section and the output section. The buffer memory or buffer memory area (not shown) of the output unit of the primary recording medium 23 may be provided in the input unit of the secondary recording medium 24 described later.

In the case of the optical disk, the random access performance is about 300 ms for the peripheral equipment for PC, and it is 1 second or more for the consumer use. If both recording and reproduction correspond to 4 × speed and 8 Mbits are simultaneously recorded and reproduced per second, recording and reproduction are completed in 500 ms. Therefore, the random access performance required for the round trip between the recording address and the reproducing address is 250.
This is a ms (one way), and this may become a bottleneck when an optical disc is used as the primary recording medium 23.

On the other hand, since the secondary recording medium 24 reads out and records the audio and image data accumulated in the primary recording medium 23, it is a recording operation via a buffer, and it is a high speed higher than the bit rate required for normal recording. Gender is not needed.
On the other hand, unlike the primary recording medium 23, the audio and image data recorded on the secondary recording medium 24 is intended to be stored, and therefore it is desirable that it has a large capacity and is removable. Therefore, as the secondary recording medium 24, an optical disk or a tape medium is suitable.

Next, the operation of the video recording device will be described. Similarly to the conventional video recording apparatus, the audio and image data detected by the CCD 2 is compressed by the compression circuit 3 by the MPEG2 method, EFM converted by the recording signal processing circuit 6, and then output to the normal recording mode terminal 25a and primary. It is also output to the recording medium 23. Then, the image data recorded and accumulated in the primary recording medium 23 is output from the primary recording medium 23 to the secondary recording mode terminal 25b.

Next, the changeover switch 25c is set to the secondary recording mode terminal 25b side, and the primary recording medium 23 is selected.
When the primary recording medium 23 and the secondary recording medium 24 are connected, the primary recording medium 23 starts recording image data,
The data copy start point is designated by the recording start / stop key 20 and the copy range designation means 27 of the system controller 18, and the data copy control means 26 starts data copying from the primary recording medium 23 to the secondary recording medium 24. . Hereinafter, the secondary recording medium 24 via the primary recording medium 23
The state in which the recording to the recording is possible is called the secondary recording mode. When data copying is started in the secondary recording mode, the primary recording medium 23 performs recording and reproduction simultaneously (alternately).

Here, the case of copying the past image recorded on the primary recording medium 23 to the secondary recording medium 24 in the secondary recording mode will be specifically described with reference to FIG.
As shown in FIG. 2, the secondary recording mode is set by a user's command, video recording on the primary recording medium 23 is started (step S11), and the secondary recording medium 24 is put in a data copy standby state (step S12). . Press the recording start / stop key 20 in the data copy standby state (step S1
3) Then, the secondary recording start point is determined according to the operation contents of the recording start / stop key 20 (step S20), and data copying from the primary recording medium 23 to the secondary recording medium 24 is started (step S30).

After the start of copying the data to the secondary recording medium 24,
The recording start / stop key 20 is pressed again to determine the data copy end point (step S40), the data copy end point is detected from the reproduction data of the primary recording medium 23 (step S50), and the data copy is ended (step S40). S5
1). On the other hand, in the data copy standby state of the secondary recording medium 24 (step S12), when the secondary recording mode is canceled by the user's command (step S60), the recording on the primary recording medium 23 is finished and the secondary recording is completed. The standby state for copying data to the medium 24 is released (step S61), and the secondary recording mode is ended.

Recording start / stop key 20 again
When is pressed, the secondary recording mode operation is started in the same manner as described above (step S13). On the other hand, an instruction to end the secondary recording mode is issued by a user operation (step S
60), the recording on the primary recording medium 23 and the data copying standby state on the secondary recording medium 24 are terminated (step S6).
1), the secondary recording mode ends (step S62).
The user's instruction to end the secondary recording mode is, for example, a transition from the recording mode in the switch circuit 13 (switch the switch SW of the switch circuit 13 to the REC terminal) to the reproduction mode (switch the switch SW of the switch circuit 13 to PB). Alternatively, the recording mode changeover switch 25 is switched to the normal recording mode, the power is turned off, or the like.

In the secondary recording mode, a power switch (not shown) is turned on, the switch SW in the switch circuit 13 is used as the terminal REC to select the recording mode, and the changeover switch 25c of the recording mode changeover switch 25 is changed to the secondary record. The secondary recording mode is selected by switching to the mode terminal 25b. Primary recording medium 23 during execution of secondary recording mode
Performs loop recording in which new data is recorded while sequentially erasing the data having the oldest recording time among the already recorded data.

When the secondary recording medium 24 is an optical disk, in a data copy standby state (step S12), a pickup (not shown) is made to stand by in the vicinity of the head radius of the unrecorded area, and the spindle and laser are off. By doing so, it is possible to quickly switch to the recording operation without consuming unnecessary power.

Data copying from the primary recording medium 23 to the secondary recording medium 24 will now be described in more detail. First, the procedure for identifying the secondary recording start point from the operation content of the recording start / stop key 20 (step S20) will be described in detail with reference to FIGS. As a method of specifying the secondary recording start point, there are a method of operating the recording start / stop key 20 and the number of times of pressing the recording start / stop key 20, and a method of pressing this. As the former method, a method of determining the secondary recording start point by the number of times the recording start / stop key 20 is operated will be described with reference to FIGS. 3 and 4. As shown in FIG. 4, copy range designation means 27
Is a counter 502 that counts the number of times the recording start / stop key 20 is pressed, a time storage unit 503 that stores the time Tn when the recording start / stop key 20 is pressed, and an operation waiting time to set the operation waiting time Tref1. The time setting unit 504, the number of times the recording start / stop key 20 is pressed, the time when the recording start / stop key 20 is pressed, and the basic time setting that can be traced back to the past by one operation of the recording start / stop key 20. And a copy range designation controller 501 for designating a copy range based on a value.

As shown in FIG. 3, the recording start / stop key 20 is pressed in the secondary recording standby state to start the secondary recording start point time determination processing (step S20).
1) First, the time Tn at which the recording start / stop key 20 is pressed is stored in the time storage means 503 (step S).
202). At the same time, the counter value P of the counter 502 is reset (step S203).

Next, it is detected whether or not the recording start / stop key 20 is pressed again within the operation waiting time Tref1 set by the operation waiting time setting unit 504 (step S204). For example, when the operation waiting time Tref1 is set to 1 second, if the recording start / stop key 20 is pressed again within 1 second from the time (step S201) when the recording button was pressed last time, the counter value of the counter 502 is incremented by one. Increase (step S205), and the time when the recording start / stop key 20 is pressed (step S2)
It is detected whether the recording start / stop key 20 is pressed again within 1 second from 04).

In this way, it is determined how many times the user has pressed the recording start / stop key 20 in succession, and the number of times is held as the count value P in the counter 502. These operations are performed by the copy range designation controller 501.
Controlled by.

When the user finishes the operation of continuously pressing the recording start / stop key 20 (step S20)
4), the copy range designation controller 501 displays the time T
n, count value P, and recording start / stop key 20
Based on the basic time setting value N that specifies how much time is pushed back per push, the secondary recording start point time Ts is calculated as Ts = Tn- (P * N) (step S206). It is convenient that the user can arbitrarily set the operation waiting time Tref1 and the basic time set value N.

Here, P is set as the initial value of the counter 502.
If = 0 is given, Ts = Tn if the recording start / stop key 20 is pressed only once, and the same image as in the normal recording mode is recorded in the secondary recording medium 24. The operation is easy to understand and easy to handle even if it is set as the default.

As an initial value of the counter 502, P =
If 1 is given, even if the recording start / stop key 20 is pressed only once, the image traced back by the basic time set value N is recorded in the secondary recording medium 24. This operation is easier to understand if it is configured to explicitly perform secondary recording such as by providing it separately.

Next, as the latter method, recording start /
A method of determining the secondary recording start point by the operation time of the stop key 20 will be described with reference to FIGS. 5 and 6. As shown in FIG. 6, the copy range designation means 27 starts recording /
A return time detection unit 512 that detects the time when the stop key 20 is pressed, a time storage unit 513 that stores the time Tn when the recording start / stop key 20 is pressed, and an operation determination time that sets the operation determination time Tref2. Setting unit 514
And the time T at which the recording start / stop key 20 was pressed and the time T at which the recording start / stop key 20 was pressed.
and a copy range designation controller 511 for designating a copy range based on n and the operation determination time Tref2.

As shown in FIG. 5, the recording start / stop key 20 is pressed in the secondary recording standby state to start the secondary recording start point time determination processing (step S21).
1) First, the time Tn at which the recording start / stop key 20 is pressed is stored in the time storage means 513 (step S).
212). At the same time, the return time Tp of the return time detector 512
Is reset (step S213).

Next, it is detected whether or not the recording start / stop key 20 is released, and the time during which the recording start / stop key 20 is pressed is set as the return time Tp (step S214). These operations are controlled by the copy range designation controller 511.

The return time Tp is determined by the operation determination time setting unit 514.
If it is longer than the operation determination time Tref2 set in step 3, the copy range designation controller 511 calculates the secondary recording start point time based on the time Tn and the return time Tp (step S).
216).

For example, when the operation determination time Tref2 is set to 1 second, if the recording start / stop key 20 is pressed down for 1 second or more from the time when the previous recording start / stop key 20 was pressed (step S211), The secondary recording start point time Ts is calculated as Ts = Tn-Tp. Alternatively, Ts may be multiplied by an arbitrary coefficient R to obtain Ts = Tn-Tp * R.

When Tp is less than the operation waiting time Tref2 set by the operation determination time setting unit 514, the copy range designation controller 511 calculates the secondary recording start point time Ts as Ts = Tn (step S217). .

With this configuration, when the recording start / stop key 20 is pressed once in a short time, the same image as in the normal recording mode is recorded in the secondary recording medium 24, so that the secondary recording mode is the default. The operation is easy to understand and easy to use. Also, the operation determination time Tref2
It is convenient to allow the user to set the and the coefficient R to arbitrary numerical values.

Further, the primary recording medium 23 based on the secondary recording start point time Ts determined by the data copy control means 26.
Data copying from the recording medium to the secondary recording medium 24 will be described with reference to FIGS. 7 and 8. When the time Ts of the secondary recording start point is determined, the data copying process to the secondary storage medium 24 is started (step S301), and the primary recording medium 23 displays the recorded image among the recorded images according to the instruction from the data copying control means 26. The reproduction of the image from the secondary recording start point time Ts is started (step S302). At this time, the primary recording medium 23 records the subject image incident from the lens system 1 and, at the same time, performs the recording simultaneous reproduction (chase reproduction) operation of reproducing the image from the secondary recording start point time Ts described above. Primary recording medium 23
At the same time when the reproduction is started, the secondary recording medium 24 starts recording the reproduction signal (step S303).

Next, a method of determining the secondary recording end point time Te will be described with reference to FIGS. 4, 6 and 8.
Data copying from the primary recording medium 23 to the secondary recording medium 24 is started (step 401), and the copy range designating means 27.
However, when it is detected that the recording start / stop key 20 is pressed again (step S402), the time is stored in the time storage means 503 or 513 as the secondary recording end point time Te (step S403).

In this way, the secondary recording end point time Te
When the determination is made, the data copy control means 26 continues copying data from the primary recording medium 23 to the secondary recording medium 24 until the reproduction time of the primary recording medium 23 reaches the secondary recording end point time Te (step S50). When the secondary recording end point time of the primary recording medium 23 reaches the secondary recording end point time Te, the secondary recording is ended (step S51), and the secondary recording medium 2 is restarted.
4 is in a data copy standby state. (Step S1
3). In this way, the past image from the secondary recording start point time Ts designated by the user to the secondary recording end point time Te is recorded on the secondary recording medium 24.

As described above, according to the embodiment of the present invention,
Since one recording start / stop key 20 for sending the command of the copy range to the copy range designation means 27 is provided, the past video can be recorded by a simple operation. When an optical disk is used as the secondary recording medium 24, the secondary recording medium 24
The laser and spindle are not operated during the recording standby state, and the radial position of the pickup is set to be near the beginning radius of the unrecorded area, and the standby state is set, thereby switching to the quick recording operation without wasting power. Can correspond to.

Although the secondary recording mode / normal recording mode is selected by the dedicated recording mode changeover switch 25, the default may be that the recording mode is switched to the secondary recording mode at the same time. Further, in the case of voice, the same can be done by providing a microphone instead of the CCD 2.

[0052]

As described above, according to the present invention, since the copy range designating means is provided with the operation switch for sending the command of the copy range, the past image can be recorded by a simple operation. The copy range designation means includes counter means for counting the number of times the operation switch is pressed, time storage means for recording the time at which the operation switch is pressed,
Based on a time setting unit that sets an operation waiting time for starting the secondary recording to the second storage unit, the number of times, the time, and a basic time set value that can be traced back in the past by one operation of the operation switch. In addition, since the copy range designating controller for designating the copy range is provided, it is possible to easily designate how far back in the past by the number of operation switches. The copy range designation means is a return time detection means for detecting a time during which the operation switch is pressed, a time storage means for storing a time at which the operation switch is pressed, and an operation judgment time setting for setting an operation judgment time. Section and a copy range designation controller for designating the copy range based on the time when the operation switch is pressed, the time when the operation switch is pressed, and the operation determination time. It is possible to easily specify how far back in time the operation time of. The first storage means is a solid-state memory or a hard disk, and the second storage means
Since the storage means is an optical disk or a tape-shaped medium, it is possible to provide a video recording device with high utility value.

[Brief description of drawings]

FIG. 1 is a block diagram showing a video recording device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a procedure of a secondary recording operation in the embodiment of the present invention.

FIG. 3 is a flowchart diagram for determining a secondary recording start point by the number of times a recording start / stop key is operated.

FIG. 4 is a diagram showing copy range designating means used in the flowchart of FIG.

FIG. 5 is a flow chart diagram for determining the secondary recording start point by the time when the recording start / stop key is operated.

FIG. 6 is a diagram showing a copy range designating unit used in the flowchart of FIG.

FIG. 7 is a flowchart showing a procedure of data copying.

FIG. 8 is a flowchart showing a procedure for determining a secondary recording end point.

FIG. 9 is a block diagram showing a conventional video recording device.

[Explanation of symbols]

1 ... Lens system, 2 ... CCD, 3 ... Compression encoding circuit, 5 ...
Motion detection circuit, 6 ... Recording signal processing circuit, 8 ... Recording medium,
Reference numeral 10 ... Playback signal processing circuit, 11 ... Liquid crystal monitor, 12 ... Expansion circuit, 13 ... Switch circuit, 14 ... Viewfinder, 15 ... AV output terminal, 16 ... Lens system drive circuit, 1
8 ... System controller, 19 ... Key input section, 20 ...
Recording start / stop key (operation switch), 23 ...
Primary recording medium (first storage means), 24 ... Secondary recording medium (second storage means), 25 ... Recording mode changeover switch,
26 ... Data copy control means, 27 ... Copy range designation means,
Reference numeral 501 ... Copy range designation controller, 502 ... Counter, 503 ... Time storage means, 504 ... Operation waiting time setting section (time setting section), 511 ... Copy range designation controller, 512 ... Return time detection section, 513 ... Time storage means,
514 ... Operation determination time setting unit

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 5/85 H04N 5/782 Z 5/91 LF term (reference) 5C018 FA02 FA03 FB03 FB05 HA08 5C052 AA02 AB02 CC06 CC11 DD04 DD06 5C053 FA21 FA23 FA27 GA11 GB11 GB37 JA01 KA04 KA24 LA01 LA06 5D044 AB05 AB07 BC01 BC02 CC01 CC04 CC09 DE45 EF03 GK05 GK08 GK12

Claims (4)

[Claims] 1. A first storage means for storing current video data and / or audio data, and a second storage means for storing video data and / or audio data reproduced from the first storage means. A copy range designating unit for designating a copy range of video data and / or audio data copied from the first storage unit to the second storage unit, and the copy range designating unit based on a command from the copy range designating unit. In a video recording apparatus provided with a data copy control means for copying the video data and / or the audio data from one storage means to the second storage means, an operation of sending a command of the copy range to the copy range designating means. A video recording device having a switch. 2. The copying range designating means includes a counter means for counting the number of times the operation switch is pressed, a time storage means for recording the time when the operation switch is pressed, and a second storage means. With a time setting unit that sets the operation waiting time for starting the secondary recording mode, the number of times the operation switch is pressed, the time when the operation switch is pressed, and one operation of the operation switch can be traced back in the past. The video recording apparatus according to claim 1, further comprising: a copy range designation controller that designates the copy range based on a basic time set value. 3. The copy range designating means includes a return time detecting means for detecting a time during which the operation switch is pressed,
A time storage unit that stores the time when the operation switch is pressed; an operation determination time setting unit that sets an operation determination time;
The copy range designation controller for designating the copy range based on the time when the operation switch is pressed, the time when the operation switch is pressed, and the operation determination time. The video recording device described. 4. The video recording apparatus according to claim 1, wherein the first storage means is a solid-state memory or a hard disk, and the second storage means is an optical disk or a tape-shaped medium. .