JP2003242706A - Recorder, recording method, recording medium and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely perform recovery processing when data is not normally recorded to a disk-like recording medium. <P>SOLUTION: From a sensor 19, the data corresponding to applied shocks (force) are outputted. A sensor level determination part 55 decides whether or not a value indicated by inputted data is equal to or above a prescribed level value and outputs the result to an instruction output part 54. If the data from the sensor level determination part 55 indicates a decision result deciding that it is equal to or above the prescribed level value, the instruction output part 54 decides that the shock is applied and executes the processing of inhibiting the activation of a drive or the like. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus and method, a recording medium, and a program, and more particularly, to a recording apparatus that executes appropriate processing when the apparatus is subjected to excessive vibration and ensures recovery. And a method, a recording medium, and a program.

[0002]

2. Description of the Related Art In recent years, a recording / reproducing apparatus for recording image data and audio data picked up on a disc-shaped recording medium has become widespread. When recording data on a disk-shaped recording medium as compared with a conventional tape-shaped recording medium, a disk-shaped recording medium is used because it has an advantage that processing such as retrieval and editing of the recorded data can be performed easily. Recording / playback devices are becoming widespread.

A recording / reproducing apparatus using a disc-shaped recording medium records data at a disc-shaped predetermined position by rotating the disc and positioning an optical pickup at a predetermined position. The data written to the disk is imaged image data (or audio data), and the data is sequentially written after being stored in a temporary storage device such as a FIFO (First In First Out). Here, the operation of the recording / reproducing apparatus when writing data to the disc will be described with reference to the flowchart of FIG.

The recording / reproducing apparatus, in step S1,
It is determined whether data is stored in the FIFO, and step S1 is performed until it is determined that the data is stored.
The process of is repeated. FIFO in step S1
If it is determined that the data is stored in, that is, if the image data of the captured image is stored, and it is determined that there is data to be recorded in a disk shape, the process proceeds to step S2, and the drive Is started.

A disk-shaped recording medium is preloaded in the drive. When the drive is activated, reading of data from the FIFO is started in step S3. When data reading is started, step S4
At, writing to the disc is started.

When the drive is activated, a focus error signal and a tracking error signal can be generated. Using the focus error signal and the tracking error signal in step S5,
Detection of a shock (vibration) applied to the recording / reproducing apparatus is started.

In step S6, it is determined whether or not a shock is detected. When it is determined in step S6 that a shock is detected, the process proceeds to step S7, and interrupt processing is executed. The fact that a shock has been detected indicates that data cannot be written to the disk, so the interrupt processing performed in step S7 may be, for example, stopping writing data until the shock is settled, or canceling the writing. Processing for data that could not be written due to.

On the other hand, if it is determined that the shock is not detected in step S6, the process proceeds to step S8 and the process of writing the data read from the FIFO to the disk is continued. While the data writing to the disk is continued, it is determined in step S9 whether or not there is any data stored in the FIFO. When it is determined in step S9 that the data is still stored in the FIFO, the process returns to step S6 and the subsequent processing is repeated.

On the other hand, if it is determined in step S9 that there is no data stored in the FIFO, it means that there is no data to be written to the disk, and the writing process shown in FIG. 1 is terminated.

As described above, when writing to the disk is performed, it is detected whether or not there is a shock such that the writing process cannot be continued while the writing is being performed. In, the process is executed so that the writing can be resumed when the shock is stopped.

[0011]

Since the shock detection described above uses the focus error signal and the tracking error signal, there is a problem that the shock cannot be detected unless the drive is activated. It is possible to always detect shock if the drive is always started,
If the drive is continuously activated, power is unnecessarily consumed and the drive time of the recording / reproducing apparatus is shortened.

There is also a problem that shock detection using a focus error signal or a tracking error signal may not be sufficient depending on how the shock is applied, and normal recording may not be completely guaranteed.

The present invention has been made in view of such a situation, and an object thereof is to make it possible to surely detect a shock and to always perform a normal recording operation.

[0014]

In order to solve the above-mentioned problems, a recording apparatus to which the present invention is applied includes an image pickup means for picking up an image, and a storage means for storing image data of the image picked up by the image pickup means. A recording means for reading the image data stored in the storage means and recording the image data on a disk-shaped recording medium;
Drive means for driving the disk, first detection means for detecting vibration applied by a signal obtained from the disk when the disk is being driven by the drive means, and regardless of whether the disk is driven by the drive means Second detecting means for detecting the generated vibration, and instructing means for instructing the recording means to stop recording by the recording means when the vibration is detected by the first detecting means or the second detecting means. It is characterized by including.

The signal used for the first detecting means is
It may be at least one of the focus error signal and the tracking error signal.

The second detecting means may be an acceleration sensor.

When vibration is detected by at least one of the first detecting means and the second detecting means, display control means is further included for controlling the display of a message for making the user recognize the fact. You can

When the vibration is detected by at least one of the first detecting means and the second detecting means, the instructing means determines whether or not there is a free space in the storing means, and the storing means. When it is determined that there is no free space in the storage device, it is possible to further give an instruction so that the image capturing means does not capture an image.

When the vibration is detected by the second detecting means, the driving means may not be driven.

A recording method to which the present invention is applied controls a storage control step for controlling storage of image data of a picked-up image and a read-out of image data whose storage is controlled by the processing of the storage control step. The recording control step for controlling the recording on the recording medium, the drive control step for controlling the drive of the disk, and the signal obtained from the disk when the drive of the disk is controlled by the processing of the drive control step. A first detection step for detecting vibration, and a second detection step for detecting applied vibration regardless of the control of the drive of the disk by the drive control step, and the first detection step or the second detection step. If vibration is detected by the process, a finger that instructs the recording control step to stop the recording control by the recording control step. Characterized in that it comprises a step.

A program for a recording medium to which the present invention is applied controls a storage control step for controlling storage of image data of a captured image, and reading of image data whose storage is controlled by the processing of the storage control step. A recording control step for controlling recording on a disk-shaped recording medium, a drive control step for controlling drive of the disk, and a signal obtained from the disk when the drive of the disk is controlled by the processing of the drive control step. A first detection step of detecting the applied vibration, a second detection step of detecting the applied vibration, and a first detection step or a second detection regardless of the control of the drive of the disk by the drive control step. If vibration is detected by the processing of the step, the recording control step is stopped so that the recording control by the recording control step is stopped. Characterized in that it comprises an indication step of issuing a shown.

A program to which the present invention is applied controls a storage control step for controlling storage of image data of a picked-up image and a read-out of image data whose storage is controlled by the processing of the storage control step. When the drive of the disc is controlled by the processing of the recording control step for controlling recording on the recording medium, the drive control step for controlling the drive of the disk, and the drive control step, the vibration applied by the signal obtained from the disk Detecting the applied vibration regardless of the control of the drive of the disc by the drive control step and the processing of the first detection step or the second detection step When the vibration is detected by, the recording control step is instructed to stop the recording control by the recording control step. Characterized in that to execute the shown steps in a computer.

The operation will be described below.

In a recording apparatus and method and a program to which the present invention is applied, image data of a captured image is stored, the stored image data is read out, recorded in a disc-shaped recording medium, and stored in a disc. When the is driven, the vibration applied by the signal obtained from the disc is detected, regardless of the drive of the disc,
The applied vibration is detected and if vibration is detected, an instruction is given to stop recording.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing the configuration of an embodiment of a recording / reproducing apparatus to which the recording apparatus of the present invention is applied. In the following description, the recording / reproducing apparatus 1 that handles still images will be described, but the present invention is not limited to being applied to only the recording / reproducing apparatus 1 that handles still images.
It goes without saying that the present invention can also be applied to a recording / reproducing apparatus that handles moving images and the like.

The recording / reproducing apparatus 1 shown in FIG. 2 records data on a disk 11 which is a disk-shaped recording medium, and reproduces the data recorded on the disk 11. The optical pickup 12 is a device including an optical system including an LD (Laser Diode), a laser driver, a photodetector that detects return light, and a biaxial actuator that drives a lens in a focus / tracking direction.
Data is reproduced from the disk 11 or data is recorded on the disk 11.

Further, the optical pickup 12 is moved in the radial direction by a sled motor, and is combined with a tracking servo and a sled servo to perform normal continuous read or continuous Wr.
Performs the trace operation at the time of ite and the seek operation to move to the target point.

The analog front-end circuit 13 receives the RF Read signals (A to H) from the optical pickup 12 and outputs each signal required by the servo circuit 14 and an EQRF (EQualized RF) signal to the signal processing circuit. .

The servo circuit 14 controls a biaxial actuator, that is, a focus / tracking servo, a sled servo, and a spindle servo. Servo circuit 14
Controls the tracking direction (radial direction with respect to the disc 11) using the tracking error (TE) signal supplied from the analog front end circuit 13, and uses the focus error (FE) signal to control the focusing direction (disc 11). Control in the vertical direction).

Further, the servo circuit 14 follows the spiral tracking of the disk 11 and the optical pickup 1
The sled control for moving the whole 2 from the inner circumference to the outer circumference is performed so that the tracking error signal is always in a predetermined range during reading and writing. Further, the servo circuit 14 has an ATFG (Absolute Time in pre groove Frequency) supplied from the analog front end circuit 13.
The spindle motor for rotating the disk 11 is controlled so that the linear velocity of the disk 11 becomes constant based on the (Generate) signal.

In the groove of the disk 11, serialized address information is frequency-modulated and recorded (Wobbling). This frequency-modulated signal is the ATFG signal, which controls the rotation of the disk so that this average frequency becomes constant, and a predetermined CLV (Constant Liner)
Velocity) mode is realized.

The shock detection circuit 18 uses the focus error signal and the tracking error signal supplied from the analog front end circuit 13, and detects the sensor 19
The shock (vibration) applied to the recording / reproducing apparatus 1 is detected using the signal supplied from the. Details of shock detection in the shock detection circuit 18 will be described later.

The control circuit 28 controls each unit in the recording / reproducing apparatus 1. A ROM (Read Only Memory) 29 stores programs necessary for the control circuit 28 to control each unit. The FIFO 30 temporarily stores imaged image data, in other words, image data recorded on the disk 11. Further, the FIFO 30 may be used as a temporary storage device when reproducing the image data recorded on the disk 11.

The image processing circuit 20 processes the image data of the captured image to be recorded on the disk 11 and the image data reproduced from the disk 11. The image data processed by the image processing circuit 20 is L if necessary.
It is output to a CD (Liquid Crystal Display) 21. L
On the CD 21, the captured image, the reproduced image, and the like are displayed.

The image pickup control circuit 22 is a circuit for controlling a portion related to image pickup when picking up an image. The imaging control circuit 22 controls the autofocus by moving the lens 23, and also adjusts the diaphragm. CCD
The (Charge Coupled Device) 24 includes a plurality of pixels, and photoelectrically converts an optical image formed on each pixel into an image signal (electrical signal). The converted image signal is supplied to the processing circuit 25. The processing circuit 25 samples the supplied image signal at a predetermined timing and amplifies the sampled signal to a predetermined level.

The amplified image signal is A / D (Analog / D
igital) conversion circuit 26. A / D conversion circuit 2
6 digitizes the supplied image signal and supplies it to the image processing circuit 20. The image processing circuit 20 converts RGB signals into YUV signals, performs calculations for gamma correction and resolution conversion, and also uses JPEG (Joint
Photographic Experts Group) also performs compression processing according to the method. Of course, compression based on another method may be performed. The compressed image data is temporarily stored in the FIFO 30 and is then stored in the signal processing circuit 31 as CIRC (C
Error correction encoding processing such as ross Interleave Reed-Solomon Code) is performed, and further converted into an electric signal corresponding to the recording laser blinking signal, output as a Write signal, supplied to the optical pickup 12, and recorded on the disk 11.

FIG. 3 is a diagram showing an internal configuration example of the shock detection circuit 18 and the analog front end circuit 13.
The RF Read signal (A to H) output from the optical pickup 12 is a light-receiving pattern output (photodetector output), and the focus / tracking error signal generation circuit 42 of the analog front end 13 outputs the focus error signal (FE) and the tracking error signal (FE). TE) is generated.

Here, the focus error signal and the tracking error signal will be described. Here, three light spots are formed on the disk 11, and these three light spots (8 signals of A to H) are supplied to the analog front end circuit 13 as a light receiving pattern output, and are supplied to the focus tracking error signal generation unit 42. Supplied.
As shown in FIG. 4, the main light spots are from the area A to the area D.
Each of the two sub light spots is divided into four regions, that is, an E region and an F region, and a G region and an H region, respectively. A signal obtained from the area A is described as a signal A, and signals obtained from other areas are described in the same manner.

The focus tracking error signal generator 42 calculates the focus error signal (FE signal) by the following equation using the signal obtained from the main light spot. FE signal = (Signal A + Signal C) − (Signal B + Signal D)

The focus tracking error signal generator 42 calculates a tracking error signal (TE signal) by using the following equations using the signals obtained from the main light spot and the sub light spot, respectively. TE signal = ((Signal A + Signal D) − (Signal B + Signal C)) − a ((Signal F + Signal H) − (Signal E + Signal G)) The signal obtained from the sub light spot is obtained from the main light spot. Since the signal has a level difference caused by the configuration, when the TE signal is calculated, the coefficient a is used for correction and then the calculation is performed.

Returning to the description of the internal structure of the shock detection circuit 18 in FIG. 3, the focus error signal and the tracking error signal generated by the focus tracking error signal generation unit 42 are supplied to the servo circuit 14 and the shock detection circuit. It is also supplied to 18. The focus error signal (FE signal) is the F of the shock detection circuit 18.
A tracking error signal (TE
Signal) is supplied to the TE level determination unit 52.

The FE level determination section 51 stores the set level value when it is determined that a shock is applied when the FE signal is above a predetermined level value. F
When the E level determination unit 51 determines that the FE signal is greater than or equal to the stored level value, it outputs 1 to the OR operation unit 53 when it determines that the FE signal is less than or equal to the level value.

Similarly, the TE level determination section 52 also stores the level value set when it is determined that a shock is applied when the TE signal is above a predetermined level, and the TE signal is stored. When it is determined that the level value is greater than or equal to the level value, 1 is output, and when it is determined that the level value is less than the level value, 0 is output to the logical sum operation unit 53.

The logical sum operation unit 53 is the FE level determination unit 5
When at least one of the value from 1 and the value from the TE level determination unit 52 is 1, 1 is output to the instruction output unit 54. The instruction output unit 54 includes the sensor level determination unit 5
The determination result from 5 is also supplied.

When the value of the signal supplied from the sensor 16 is at a predetermined level, the sensor level judging section 55
When it is determined that a shock is applied, the set level value is stored, and when it is determined that the signal is equal to or higher than the stored level value, 1 is determined, and when it is determined that the signal is equal to or lower than the level value, 0 is determined. Output to the instruction output unit 54.

In the instruction output unit 54, when there is an output from the logical sum operation unit 53 or the sensor level determination unit 55, the result can be held and detected by the control circuit 28 via the bus 27.

The sensor 16 can be constructed, for example, as shown in FIG. 5, and includes a piezoelectric ceramic acceleration sensor 61,
It is possible to use a device including an amplifier 62 that amplifies the signal obtained by the piezoelectric ceramic acceleration sensor 61. The piezoelectric ceramic acceleration sensor 61 responds to acceleration (applied shock (force)) to generate a minute voltage between the electrodes. A shock is detected by the generated voltage being amplified by the amplifier 62.

Next, with reference to the flow chart of FIG. 6, the operation relating to image pickup in the recording / reproducing apparatus 1 will be described. First, as a premise, it is assumed that the recording / reproducing apparatus 1 is in a state of being set in an image capturing mode (recording mode). In step S21, the remaining capacity of the storage capacity of the FIFO 30 is referred to, and it is determined whether or not the capacity for storing new data remains.

FIG. 7 which will be described later in parallel with this imaging mode
The writing process of the flowchart of 1 is performed in parallel.

When it is determined in step S21 that the FIFO 30 does not have a capacity for storing new data, the process returns to step S21, and the subsequent processes are repeated. When the FIFO 30 does not have a capacity for storing new data, a message or the like for allowing the user to recognize the fact may be displayed on the LCD 21 (FIG. 2). If the FIFO 30 does not have a free space, the image data of the captured image cannot be stored, so the release operation is prohibited.

On the other hand, in step S21, the FIFO
When it is determined that there is sufficient capacity to store new data in 30, the process proceeds to step S22, and it is determined whether or not a release (not shown) is operated. The process of step S22 is repeated (standby state) until it is determined in step S22 that the release has been operated. When it is determined that the release has been operated, the process proceeds to step S23, and image data is captured.

The image pickup control circuit 22 takes in the image data by the lens 23, the CCD 24, the processing circuit 25, and A.
This is performed by controlling each of the / D conversion units 26. Then, the image data converted into digital data by the A / D converter 26 is
The image processing circuit 20 performs compression processing. As the compression processing, for example, a method such as JPEG is used.

The image data compressed in step S24 is processed by the FIFO3 in step S25.
Written to zero. When the writing to the FIFO 30 is completed, it is determined in step S26 whether there is an instruction to change to another mode. The different mode is, for example, a reproduction mode for reproducing the data recorded on the disc 11.

If it is determined in step S26 that there is no instruction to change to another mode, step S21
When it is determined that there is an instruction to change to another mode, the process is repeated, and the process in that mode is started.

In this way, the data once stored in the FIFO 30 is written to the disk 11. When a shock is applied to the recording / reproducing apparatus 1 when data is written on the disk 11, the optical pickup 12
It is conceivable that (FIG. 2) may be displaced from the predetermined position on the disk 11 on which data was to be written, and writing may not be performed. Therefore, the shock is detected while the process of writing the data to the disk 11 is being performed (including before and after the process), and when the shock is detected, the corresponding process is executed.

First, referring to the flowchart of FIG.
The operation of the recording / reproducing apparatus 1 when the data stored in the FIFO 30 is written in the disc 11 will be described.
While the process of the flowchart of FIG. 7 is being performed, shock detection is performed, and when it is detected, a predetermined process is executed as an interrupt process. For that process, see the flowchart of FIG. It will be described later with reference.

In step S31, the recording / reproducing apparatus 1 determines whether or not data is stored in the FIFO 30, and repeats the process of step S31 until it is determined that data is stored. If it is determined in step S31 that the data is stored in the FIFO 30, in other words, if it is determined that the image data of the captured image is stored, the process proceeds to step S32 and the drive is activated ( Processing by the servo circuit 14, the spindle drive circuit 15, the focus / tracking drive circuit 16, and the sled drive circuit 17 is started).

When the drive is started, the data reading from the FIFO 30 is started in step S33. When the reading of the data is started, the CIRC encoding process is performed in step S34 to further convert it into a laser blinking signal for recording, and the writing to the disc 11 is started in step S36. While data is being written to the disk 11, step S
At 36, it is determined whether there is no data stored in the FIFO 30. FI in step S36
When it is determined that the data is still stored in the FO 30, the process returns to step S33, and the subsequent processes are repeated.

On the other hand, in step S36, the FIFO
If it is determined that there is no data stored in 30, it means that there is no data to be written in the disk 11, so the drive is stopped in step S37, and the processing ends for the writing shown in FIG.

While the process of writing data to the disk 11 is being executed, the process related to shock detection based on the process of the flowchart shown in FIG. 8 is also being executed at the same time. In step S41,
When the recording / reproducing apparatus 1 is set to the imaging mode, the sensor 19 is activated from that point. When the sensor 19 is activated, the shock applied to the recording / reproducing apparatus 1 can be detected.

In step S42, the FE signal and TE
It is determined whether or not a signal is input to the shock detection circuit 18. When it is determined in step S42 that the FE signal or the TE signal is not input to the shock detection circuit 18, the process proceeds to step S43. The FE signal and the TE signal are signals that are not output from the optical pickup 12 (FIG. 2) unless the drive of the recording / reproducing apparatus 1 is activated. Therefore, until the drive is activated and the shock can be detected using the FE signal and the TE signal, the sensor 1
Shock is detected only at 9.

In step S43, the shock detection circuit 15 determines whether or not a shock is detected based on the data obtained from the sensor 19. The data output from the sensor 19, for example, the voltage value output from the piezoelectric ceramic acceleration sensor 61 shown in FIG. 5 is input to the sensor level determination unit 55 via the amplifier 62. The sensor level determination unit 55 determines whether or not the value of the input voltage is equal to or higher than a predetermined value, and if it is determined to be equal to or higher than the predetermined value, for example, outputs 1 as data.

The instruction output unit 54 is the sensor level determination unit 5
When 1 is input as data from 5, step S4
As a process of 3, it is determined that a shock is detected, and the process proceeds to step S44. In step S44, the interrupt process 1 that is performed when the shock is detected by the sensor 19 and the drive is not activated is executed.

FIG. 9 is a flow chart for explaining the interrupt processing 1. In step S71, activation of the drive is prohibited. When a shock is detected by the sensor 19, the position of the optical pickup 12 may be displaced due to the shock, and since the disk 11 cannot be written, the drive is not activated.

In step S72, it is determined whether or not the FIFO 30 has a free capacity for storing new data. This is F when the shock is applied.
Although the data stored in the IFO 30 cannot be written in the disk 11, the FIFO
Since it is possible to store data in 30 (capture an image), the process of step S72 is provided in order to allow the user only permission to capture an image. There is.

If it is determined in step S72 that the FIFO 30 has a capacity for storing new data,
For the reasons described above, the user does not place any restrictions on capturing an image. However, if it is determined in step S72 that the FIFO 30 does not have the capacity to store new data, that is, the state in which the data stored in the FIFO 30 cannot be written to the disk 11 due to the shock being applied. Therefore, if there is no free space in the FIFO 30, the process proceeds to step S73, and a message for letting the user recognize the situation is L
It is displayed on CD21.

The message displayed on the LCD 21 is, for example, a message such as "Don't give shock", in a state where the free space of the FIFO 30 is available, that is, when writing to the disk 11 is possible. It is a message that makes the user conscious. A warning sound such as a beep sound may be emitted when the message is displayed.

In step S74, the release operation is prohibited. As mentioned above, even if an image is taken,
Since the image data cannot be stored, the release operation itself is prohibited. The prohibition means, for example, even if the release is operated, the operation for capturing the image is not performed, or the release is physically disabled.

In such a process, while the shock detection circuit 15 judges that the shock is detected by the data obtained by the sensor 19, the instruction output unit 54 continuously gives an instruction. Is executed repeatedly.

Returning to the explanation of the flow chart of FIG. 8, if it is determined in step S43 that no shock is detected, or if interrupt processing 1 is completed (shock is not detected), step The process returns to S42 and the subsequent processes are repeated.

On the other hand, when it is determined in step S42 that the FE signal and the TE signal are input to the shock detection circuit 15, that is, after the drive is started, it is determined in step S45 whether a shock is detected. It In step S45, shocks detected by the data from the sensor 19 as well as shocks detected by the FE signal or the TE signal are included.

The FE signal and the TE signal output from the analog front end circuit 13 are input to the FE level determination section 51 and the TE level determination section 52, respectively. The FE level determination unit 51 and the TE level determination unit 52 respectively
When the level of the input error signal is equal to or higher than the predetermined value, for example, 1 is output as the determination result to the logical sum operation unit 53. The logical sum operation unit 53 is the FE level determination unit 51.
If at least one of the determination results output from the TE and the TE level determination unit 52 is 1, 1 is output to the instruction output unit 54 as a calculation result.

In step S45, the instruction output unit 54 determines that a shock has been detected when at least one of the data output from the OR operation unit 53 and the sensor level determination unit 55 is 1. When it is determined that the shock is detected, the instruction output unit 54 proceeds to step S46 and determines whether the shock is detected only by the sensor 19.

In step S46, when it is determined that the shock is detected only by the sensor 19, in other words, the output from the sensor level 55 is 1, but the output from the OR operation section 53. When it is determined that is 0, the process proceeds to step S47 and the interrupt process 2 is executed. FIG. 10 is a flowchart for explaining the process performed as the interrupt process 2.

In step S81, a message is displayed. The message displayed on the LCD 21 in this step S81 is, for example, a message such as "Please do not give a shock" like the message displayed in step S73 of FIG. This message remains visible while it is determined to be in shock.

On the other hand, in step S46 (FIG. 8),
When it is determined that the shock is not detected only by the sensor 19, the process proceeds to step S48. Step S4
The process proceeds to 8 when the output from the OR operation unit 53 is 1
However, the output from the sensor level determination unit 55 may be 0 or 1.

The interrupt process 3 is performed in step S48. The interrupt process 3 will be described with reference to the flowchart of FIG. In step S91, a message is displayed. This displayed message is similar to the message displayed in step S93 of FIG. 9, for example, “Please do not shock”.
Such a message.

In step S92, the writing of the data read from the FIFO 30 to the disk 11 is interrupted. When the shock is detected by the FE signal or the TE signal obtained by the drive being activated, the optical pickup 12 is displaced from the position on the disk 11 where the data should be written due to the shock. Since writing cannot be performed in such a state, writing to the disk 11 is interrupted.

Data cannot be written on the disk 11 until the shock is settled, but it is necessary to recover the data for which writing was interrupted and the data for which recording was interrupted when the shock was settled. Therefore, in step S93, recovery processing is performed. Here, the recovery process will be described. Data is recorded on the disc 11 based on, for example, UDF (Universal Disc Format). As shown in FIG. 12, data is recorded in a predetermined unit, and one unit is composed of a link part and a file part.

The link section is composed of at least 7 blocks. In this case, the RO (Run Out) block 101-
1, 101-2, LI (Link) block 102-1 and RI (Run In) blocks 103-1 to 103-.
It is composed of 7 blocks of 4. The file part is the entity of data, and is composed of a plurality of F blocks 104-1.
Through 104-N. One block is composed of 2 KB, for example, and the file part is composed of, for example,
It is composed of 2 MByte (variable length).

After the F block 104-N of the file part, the block of the UDF management information 105 and the VATICB
(Virtual Allocation Table Information Control Blo
ck) 106 is added. The VATICB 106 is provided to manage virtual addresses in a table, and describes the data length, location, attribute, etc. of the file. If no shock is detected (writing is not interrupted), the data stored in the FIFO 30 is
Data is sequentially recorded on the disc 11 in the format as shown in FIG.

However, when a shock is detected,
The data may not be sequentially recorded on the disk 11 in the format shown in FIG. 12, and the recording may be interrupted during recording. For example, as shown in FIG. 13A, the F block 104-M
If a shock is detected when writing nearby data to the disk 11, the writing is interrupted at that point (processing of step S92 in FIG. 11).

When the writing is interrupted, a position ahead of the portion (shock generator 111) where the shock is detected when the shock is detected (a portion where data is to be written at a time after the shock generator) is written. ) To the near side (the part where the data has already been written), and the shock is detected, and the abnormally ended position is searched. This read scan cannot actually reverse the rotation of the disc, so it is physically shown in the figure (A).
The data is read in the same direction as above and the data is searched in the order shown in FIG. And NWA (Next Writable Address) 11
The position of 2 is determined, and the position of writing the next data is determined.

When the position of the NWA 112 is determined and the shock has subsided, two dummy blocks 113-1 and 113-2 are recorded from the position of the NWA 112. Then, the two RO blocks 101-3 and 101-4 are successively connected.
And one LI block 102-2 is recorded. By recording the recovery packet with such a configuration,
A packet including a portion in which writing has been interrupted can be treated as a normal packet.

Due to the interruption of writing, originally,
The data in the file portion, which was supposed to be written in the portion after the shock generation portion 111, remains unwritten. For example, if you have set to write the image data of one image to the file section, a shock is detected,
If only half of the image data can be written to the file part because the writing was interrupted, the remaining half of the image data is written, and the image data that has already been written and the remaining half of the image that has not been written. It is necessary to associate the data with each other so that when the data is reproduced, one image is reproduced.

Therefore, as shown in FIG. 14 (A), first, the shock generating section 111 normally writes, for example, the portion of the data already written, which is further forward than the portion 16 blocks before. Determined as the range. The range is defined as extent # 1.

Next, as shown in FIG.
Data excluding the data recorded as extent # 1 from the data that should have been recorded as a packet is newly written as extent # 2. For the writing, the LI block 102-2 is overwritten, and then four RI blocks 103-5 to 103-8, the F block of the data of the extent # 2, the UDF management information 105-2, and the VATICB 106-2, 2 are written. RO blocks 101-5, 105-6 and LI block 1
02-3 is sequentially written.

In this way, one file that was originally supposed to be written as one packet is 2 in this case.
It is divided into one file and written. Thus, physically, there are multiple files (two files in this case).
As shown in FIG. 15, when reproducing the data divided into, the data in the extent # 1 portion and the data in the extent # 2 portion are logically treated as one file.

Such processing is performed in step S93 (FIG. 1).
This is performed as the recovery process of 1). However,
In a situation where shocks are continuously applied, there is a possibility that the position of the NWA cannot be accurately determined, and the recovery process may not be performed normally. .

Such a situation needs to be avoided. When such a situation, that is, a situation in which a shock is continuously applied, is detected using the FE signal or the TE signal, it cannot be detected until the drive is activated. The drive is activated when writing. When the shock is detected by using only the FE signal and the TE signal, even if the writing cannot be performed, in order to detect the state in which the writing cannot be performed, the state for writing, that is, The drive needs to be activated.

This causes problems such as wasteful power consumption, and the possibility that the recovery process cannot be normally performed as described above. Further, in the case of continuously applied shocks, recovery processing may occur continuously, and accurate detection cannot be continued only with the FE signal or the TE signal.

However, in the present embodiment,
When writing data to the disk 11,
Since the shock is detected by the sensor 19 before the drive is started, and the drive is not started when the shock is detected, it is possible to suppress the power consumption due to the start of the drive. It is possible to prevent a situation in which recovery processing cannot be performed normally.

Therefore, the recovery process can always be normally performed.

Returning to the explanation of the flowchart of FIG. 11, when the recovery process is completed in step S93,
It progresses to step S49 of FIG. In step S49, it is determined whether a change to another mode has been instructed. The current mode is an imaging (recording) mode, and the other mode is a reproduction mode or the like. When it is determined in step S49 that the change to another mode has not been instructed, the process returns to step S42, and the subsequent processes are repeated.

On the other hand, if it is determined in step S49 that a change to another mode has been instructed, step S5
Then, the output from the sensor 19 is stopped (shock detection by the sensor 19 is stopped).

As described above, in the present invention, the shock is detected by the sensor 19 when the data is written to the disk 11, and the shock is also detected by the FE signal and the TE signal when the drive is activated. By doing so, even if a situation in which the data cannot be normally written to the disk 11 due to the shock being applied, the recovery process can be normally and surely performed. Become.

Further, in the above-mentioned embodiments, the case of writing data to the disk 11 has been described as an example, but the present invention can be applied when reading data from the disk 11. . Moreover, the shock detection by the sensor 19 may be always performed.

The series of processes described above can be executed by hardware, but can also be executed by software. When a series of processes is executed by software, it is possible to execute various functions by installing a computer in which the programs that make up the software are built into dedicated hardware, or by installing various programs. The recording medium is installed in a general-purpose personal computer, for example.

FIG. 16 is a diagram showing an internal configuration example of a general-purpose personal computer. The CPU (Central Processing Unit) 211 of the personal computer is an RO
Various processes are executed according to a program stored in M (Read Only Memory) 212. RAM (Random A
In the ccess memory) 213, data and programs necessary for the CPU 211 to execute various processes are appropriately stored. The input / output interface 215 is connected to an input unit 216 including a keyboard and a mouse, and outputs a signal input to the input unit 216 to the CPU 211. Further, the input / output interface 215 is also connected to an output unit 217 including a display and a speaker.

Further, the input / output interface 215 includes a storage unit 218 composed of a hard disk,
Also, a communication unit 219 for exchanging data with other devices via a network such as the Internet is also connected. The drive 220 includes a magnetic disk 231, an optical disk 232, a magneto-optical disk 233, and a semiconductor memory 23.
It is used when reading or writing data from a recording medium such as No. 4 or the like.

As shown in FIG. 16, the recording medium is a magnetic disk 231 (including a flexible disk) on which a program is recorded and an optical disk 232, which is distributed in order to provide the program to the user, separately from the personal computer. (CD-ROM (Compact Disc-Read Only Mem
ory), DVD (including Digital Versatile Disc)), magneto-optical disk 233 (including MD (Mini-Disc) (registered trademark)), or a package medium including a semiconductor memory 234, as well as a computer It is configured by a hard disk including a ROM 212 and a storage unit 218 in which a program is stored, which is provided to a user in a pre-installed state.

In the present specification, the steps for writing the program provided by the medium are not limited to the processing performed in time series according to the order described, but may be performed in parallel in parallel. Alternatively, it also includes processes that are individually executed.

In this specification, the system means
It represents the entire apparatus composed of a plurality of devices.

[0104]

As described above, according to the recording apparatus and method and the program to which the present invention is applied, the image data of a captured image is stored, the stored image data is read out, and recorded in a disc-shaped recording medium. Then, when the disc is driven, the applied vibration is detected by the signal obtained from the disc, the applied vibration is detected regardless of the drive of the disc, and the recording is stopped when the vibration is detected. Since the instruction is issued in this way, it is possible to detect vibrations with higher accuracy, and even if recording is stopped when vibrations are detected, it is possible to reliably perform the subsequent processing. Becomes

[Brief description of drawings]

FIG. 1 is a flowchart illustrating an operation performed when writing data in a conventional recording / reproducing apparatus.

FIG. 2 is a diagram showing a configuration of an embodiment of a recording / reproducing apparatus 1 to which the present invention has been applied.

3 is a diagram showing an internal configuration example of a shock detection circuit 18. FIG.

FIG. 4 is a diagram illustrating spots.

5 is a diagram showing a configuration example of a sensor 19. FIG.

FIG. 6 is a flowchart illustrating an imaging process.

FIG. 7 is a flowchart illustrating a process of writing data to disk 11.

FIG. 8 is a flowchart illustrating a shock detection process.

FIG. 9 is a flowchart illustrating interrupt processing 1 in step S44.

FIG. 10 is a flowchart illustrating interrupt processing 2 in step S47.

FIG. 11 is a flowchart illustrating interrupt processing 3 in step S48.

FIG. 12 is a diagram illustrating a data structure when data is normally recorded.

FIG. 13 is a diagram for explaining a recovery process.

FIG. 14 is a diagram for explaining a recovery process.

FIG. 15 is a diagram illustrating a physical file structure and a logical file structure.

FIG. 16 is a diagram illustrating a medium.

[Explanation of symbols]

1 recording / reproducing apparatus, 11 disk, 12 optical pickup, 13 analog front end circuit, 1
4 servo circuits, 15 spindle drive circuits,
16 focus / tracking drive circuit, 17
Sled drive circuit, 18 shock detection circuit,
19 sensor, 20 image processing circuit, 21 LC
D, 22 imaging control circuit, 23 lens, 24
CCD, 25 processing circuit, 26 A / D conversion circuit,
28 control circuit, 29 ROM, 30 FIF
O, 31 signal processing circuit, 42 focus / tracking error signal generation section, 51 FE level determination section,
52 TE level determination unit, 53 OR operation unit,
54 instruction output unit, 55 sensor level determination unit

Claims (9)

[Claims] 1. An image pickup unit for picking up an image, a storage unit for storing image data of the image picked up by the image pickup unit, and the image data stored in the storage unit,
Recording means for recording on a disk-shaped recording medium; drive means for driving the disk; and first vibration for detecting a vibration applied by a signal obtained from the disk when the disk is driven by the drive means. Detecting means, regardless of the drive of the disk by the drive means,
Second detection means for detecting the applied vibration, and when the vibration is detected by the first detection means or the second detection means, instructs the recording means to stop the recording by the recording means. A recording device comprising: 2. The recording apparatus according to claim 1, wherein the signal used for the first detecting means is at least one of a focus error signal and a tracking error signal. 3. The recording apparatus according to claim 1, wherein the second detecting means uses an acceleration sensor. 4. When a vibration is detected by at least one of the first detecting means and the second detecting means, a display control means for controlling the display of a message for making the user recognize the fact. The recording apparatus according to claim 1, further comprising: 5. The instructing means, when vibration is detected by at least one of the first detecting means and the second detecting means, determines whether or not there is a free space in the storage means. The recording apparatus according to claim 1, further comprising an instruction to prevent the image capturing unit from capturing the image when it is determined that the storage unit has no free space. 6. The recording apparatus according to claim 1, wherein the drive unit is not driven when vibration is detected by the second detection unit. 7. A storage control step for controlling storage of image data of a captured image, and reading of the image data whose storage has been controlled by the processing of the storage control step is controlled to a disk-shaped recording medium. A recording control step for controlling recording, a drive control step for controlling drive of the disc, and a vibration applied by a signal obtained from the disc when the drive of the disc is controlled by the processing of the drive control step. And a second detection step of detecting the applied vibration regardless of the control of the drive of the disk by the drive control step, the first detection step or the second detection step. When vibration is detected by the processing of the detection step, the recording control is stopped so that the recording control by the recording control step is stopped. Recording method characterized by comprising an indication step of issuing an instruction to the step. 8. A storage control step for controlling storage of image data of a captured image, and reading of the image data whose storage has been controlled by the processing of the storage control step is controlled to a disk-shaped recording medium. A recording control step for controlling recording, a drive control step for controlling drive of the disc, and a vibration applied by a signal obtained from the disc when the drive of the disc is controlled by the processing of the drive control step. And a second detection step of detecting the applied vibration regardless of the control of the drive of the disk by the drive control step, the first detection step or the second detection step. When vibration is detected by the processing of the detection step, the recording control is stopped so that the recording control by the recording control step is stopped. Recording medium from which a computer readable program is recorded, characterized in that it comprises an indication step of issuing an instruction to the step. 9. A storage control step for controlling storage of image data of a captured image, and reading of the image data whose storage is controlled by the processing of the storage control step is controlled to a disc-shaped recording medium. A recording control step for controlling recording, a drive control step for controlling drive of the disc, and a vibration applied by a signal obtained from the disc when the drive of the disc is controlled by the processing of the drive control step. And a second detection step of detecting the applied vibration regardless of the control of the drive of the disk by the drive control step, the first detection step or the second detection step. When vibration is detected by the processing of the detection step, the recording control is stopped so that the recording control by the recording control step is stopped. Program for executing an instruction step of issuing instructions to step into the computer.