JPH06349217A - Digital audio disc player - Google Patents

Abstract

PURPOSE:To prevent the frequent movement of a pickup by counting the number of the generating circuits of the error flags of digital voice data for a prescribed period, deciding a voice jump when a discrete value reaches a fixed value or more and stopping only write. CONSTITUTION:Signal-processed digital voice data are written to a memory 8 at speed faster than speed corresponding to regeneration speed while read is continued at regeneration speed from the memory 8. When an error detecting flag (a) is output when there are a flaw, etc., during write and read and the errors of numbers, in which the errors cannot be corrected, are detected, the numbers are counted by a counter 13. When the discrete values (b) during a prescribed period are less than a fixed value, regeneration is continued as it is. When the discrete values (b) higher than the fixed value of the counter 13 are discriminated, a write stoppage output is generated from a voice-jump decision means 11-1. Digital voice data are read continuously from the memory 8 even during a period, when write is being stopped, thus preventing the interruption of voices.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital audio disc player, and more particularly to a digital audio disc player which prevents sound interruption due to vibration or the like.

[0002]

2. Description of the Related Art A conventional digital audio disc player for preventing sound breakage due to vibration or the like is disclosed in Japanese Unexamined Patent Publication No. 4-337571, in which signal-processed digital audio data is reproduced at a reproduction speed. The data is written into the storage means at a speed higher than the corresponding speed, and is read out from the storage means at the reproduction speed to be reproduced, and the reading from the storage means is continued, and during this time, the data is stored according to a flag indicating an error state of the digital audio data. The writing of the digital audio data to the means is stopped, the pickup is moved to the position of the digital audio disc corresponding to the address immediately before the error flag is generated, and the digital audio data sequentially read from the moving position is written to the storage means. Was configured into.

According to the above-mentioned conventional digital audio disc player, when there is a flaw in the digital audio disc or a track jump, an error occurs in the digital audio data, and a flag indicating an error state is output. Is output, the writing of the digital audio data to the storage means is stopped, the pickup is moved to the position on the digital audio disk corresponding to the address immediately before the flag is generated, and the pickup sequentially moves from that position. The read digital audio data is written in the storage means. Since the digital audio data written in the storage means is read and reproduced during the period in which the writing to the storage means is stopped, the interruption of the reproduced audio is eliminated.

[0004]

However, according to the above-mentioned conventional digital audio disc player, when an error is detected in the digital audio data, it is immediately judged that there is a flaw or a track jump, and the position of the pickup is changed. The problem is that the pickup is moved and this operation is performed frequently even when there are defects or track jumps that are not actually recognized as skipping because it is configured to return and start writing. was there.

Further, in the above-mentioned conventional digital audio disc player, no consideration is given to the case of fast-forwarding and fast-returning, and when a certain number of racks are jumped in the case of fast-forwarding and fast-returning, pickup is performed. Because there is a difference between the read position of the digital audio data by and the position of the pickup corresponding to the digital audio data that is actually being reproduced, that is, the digital audio data that is read from the storage means and is being reproduced. However, there is a problem that a lot of sound is skipped in the case of fast-forward, and a sound skips earlier in the case of fast-reverse so that the sound is not returned much.

The present invention ignores flaws in a range that is not recognized as skipping, prevents frequent movements of the pickup, and moves the pickup to the position currently being reproduced when a fast-forward or fast-reverse instruction is given. The purpose is to provide.

[0007]

In the digital audio disc player of the present invention, the signal-processed digital audio data is written into the storage means at a speed higher than the speed corresponding to the reproduction speed and read from the storage means at the reproduction speed. In a digital audio disc player equipped with a storage control means for continuing the operation, the number of times the error flag of digital audio data is generated is counted for a predetermined period, and when the count value is equal to or more than a predetermined value, it is determined that a sound skip and only writing Writing stop means for stopping the movement, movement control means for moving the pickup to the position of the digital audio disc corresponding to the address immediately before the writing is stopped when the writing is stopped, and digital audio data sequentially read from the moved pickup position is stored. A write restart control means for writing to the means It is characterized in.

In the digital audio disc player of the present invention, the writing stop means determines that the skipping occurs when it is continuously detected that the period of inputting the address synchronization signal recorded together with the digital audio data is not the predetermined period for the predetermined period. It is a means for stopping writing.

In the digital audio disc player of the present invention, the writing stop means is means for stopping writing when it is detected as an audio skip when an error in the address data recorded together with the digital audio data is continuously detected for a predetermined period. Is characterized by.

In the digital audio disc player of the present invention, the storage control means for writing the signal-processed digital audio data into the storage means at a speed equal to or higher than the speed corresponding to the reproduction speed and continuing the reading from the storage means at the reproduction speed. In a digital audio disc player equipped with, a movement control means for moving the pickup to a position on the digital audio disc corresponding to a read address of the storage means when a fast-forward instruction or a fast-return instruction is given during reproduction, and a movement means. Track jump means for causing the pickup to jump a predetermined number of tracks in the direction corresponding to fast-forwarding or fast-returning after the pickup has moved, and a pick-up that jumps the read address and the write address in the storage means following the predetermined number of tracks jump Address control means for matching the address corresponding to the position, characterized in that a write and read control means for performing write addresses do and reading of digital audio data from the storage means controlled by the address control means.

[0011]

In the digital audio disc player of the present invention, the writing stop means counts the number of times the error flag is generated in the digital audio data for a predetermined period, and when the count value is equal to or more than the predetermined value, it is determined that the sound skips and only the writing is performed. Is stopped. As a result, the writing is stopped because the number of occurrences of the error flag of the digital audio data is counted for a predetermined period and the count value is equal to or more than the predetermined value. Will no longer be moved. Therefore, the pickup is not frequently moved every time the error flag is generated. When the writing is stopped, the movement control means moves the pickup to the position of the digital audio disk corresponding to the address immediately before the writing is stopped, and the digital audio data sequentially read from the pickup position moved by the movement control means. Are written in the storage means under the control of the write restart control means.

In the digital audio disc player of the present invention, when the writing stop means detects that the cycle in which the address synchronization signal recorded together with the digital audio data is input is not the predetermined cycle for a predetermined period of time, it is judged as a skipped sound. Even when it is used as a means to stop writing,
The same applies when the error in the address data recorded together with the digital audio data is continuously detected for a predetermined period and it is determined that the sound is skipped and the writing is stopped.

In the digital audio disc player of the present invention, when a fast-forward instruction or a fast-reverse instruction is given during reproduction, the pickup is moved to a position on the digital audio disc corresponding to the read address of the storage means at that time. , The pickup is made to jump a predetermined number of tracks in the direction corresponding to fast-forward or fast-reverse after movement of the pickup. As a result, the number of jump tracks does not change during fast-forwarding and fast-rewinding, and many tracks jump during fast-forwarding.
When fast-forwarding, things that don't go back much will disappear.
Following the jump of a predetermined number of tracks, the read address and the write address in the storage means are matched with the address corresponding to the jumped pickup position, and the digital audio data is written and read from the matched address. .

[0014]

EXAMPLES The present invention will be described below with reference to examples. FIG. 1 is a block diagram showing the configuration of the first embodiment of the present invention.

Reference numeral 1 indicates the digital audio disc player of the first embodiment. The digital audio disk 2 is rotationally driven by a motor 4 which is driven under the control of the servo circuit 3. Recorded information is read by the optical pickup 5 from the rotationally driven digital audio disk 2. Focus information, tracking information, etc. in the recorded information read by the optical pickup 5 are supplied to the servo circuit 3 to be used for drive control of the motor 4 and position control of the pickup 5, and under the control of the servo circuit 3. , The rotation of the motor 4 is controlled, and the relative position of the pickup 5 with respect to the digital audio disc 2 is controlled.

R read by the optical pickup 5
The F signal is amplified in the high frequency amplifier 6, and the amplified RF signal is subjected to signal processing such as EFM demodulation, error detection and error correction in the signal processing circuit 7. Signal processing circuit 7
When the number of errors that cannot be corrected is detected in, the error detection flag a is output. The signal-processed digital audio data is temporarily stored in the memory 8 under the control of the memory controller 10 at a speed equal to or higher than the speed corresponding to the normal reproduction speed, and stored at the speed corresponding to the normal reproduction speed. The data is sequentially read out from the data No. 8, supplied to the D / A converter 9, converted into an analog signal, and output.

The digital audio disc player 1 of this embodiment is a digital audio disc player 1.
11 for controlling a computer and a key input device 1 for supplying an output to the microcomputer 11
2. A counter 13 for counting the error detection flag a output from the signal processing circuit 7 for a predetermined time is provided. The key input device 12 also includes a fast-forward instruction key 12-1 and a fast-reverse instruction key 12-2 for instructing fast-forward and fast-reverse, respectively.

Here, the microcomputer 11 functionally reads the count value b of the counter 13 in a predetermined period and determines that the count value b is equal to or more than a predetermined value, that is, a value at which it is recognized as a sound skip, and outputs a write stop output. When the digital sound data is written to the sound skip determining means 11-1 and the memory 8, when the digital sound data is accumulated in the first predetermined amount, and when the digital sound data is reduced to the second predetermined amount, the normal reproduction is performed. At the double speed, the first predetermined amount of accumulation is performed and the second
Servo circuit 3 is played at the speed of normal playback until the specified amount is reached.
To rotate the digital audio disc 2 via
Further, it includes drive control means 11-2 for controlling the drive via the servo circuit 3 so as to stop the drive during the generation of the write stop output. The counter 13 can also be configured in the microcomputer 11.

Further, the microcomputer 11 is functionally fast when the first predetermined amount of digital audio data is written in the memory 8 and when it is reduced to the second predetermined amount, which corresponds to the normal playback speed. The digital audio data is written in the memory 8 at a speed twice as fast as that of the digital audio data. The writing / reading control means 11-3 is included, which stops writing during the generation of the writing stop output and reads out the digital audio data from the memory 8 at a speed corresponding to the speed during normal reproduction. The read / write control means 11-3 controls the memory controller 10,
In cooperation with the memory controller 10, writing of digital audio data into the memory 8 and control of reading from the memory 8 are performed.

Further, the microcomputer 11 functionally outputs the address data e and the address data e detected from the digital audio disk 2 together with the digital audio data when the writing stop output is generated from the sound skip determination means 11-1. The optical pickup 5 cooperates with the servo circuit 3 at the position on the digital audio disk 2 corresponding to the address data immediately before the error detection flag is generated by referring to the address synchronization signal c to be read, that is, immediately before it is determined to be a skip. It includes a pickup movement control means 11-4 for moving the pickup.

In the first embodiment constructed as described above, the error detection flag a is not generated when the digital audio disc 2 has no flaws, and therefore the write stop output is not generated. As a result, the digital audio data detected by the optical pickup 5 is 2 times faster than the normal playback speed.
The data is written in the memory 8 at double speed, and the reading is started when the first predetermined amount is reached. This reading is performed at the speed of normal reproduction, and the read digital audio data is converted by the D / A converter 9 and output. The period until the reading is started is short and the listener does not feel a time delay. In this case, during the period when writing is performed twice as fast, the digital audio disc 2 is rotationally driven twice as fast as during normal reproduction.

Since the reading speed is 1/2 of the writing speed, the digital audio data is sequentially accumulated in the memory 8, and when the first predetermined amount is reached, the writing speed is controlled to the speed during normal reproduction. , The amount written in the memory 8 and the amount read from the memory 8 are balanced, and the reproduction is continued. During the period of being written at the speed of normal reproduction, the digital audio disc 2 is rotationally driven at the speed of normal reproduction. FIG. 2 schematically shows the writing speed of the digital audio data to the memory 8, the solid line shows that writing is performed twice as fast as in normal reproduction, and the broken line shows in normal reproduction. It indicates that writing is done at an early stage.

In the course of the above, there are defects,
When the number of errors that cannot be corrected is detected, the error detection flag a is output. When the error detection flag a is output, it is counted by the counter 13. When the count value b in the predetermined period is less than the predetermined value, that is, not more than the value that can be recognized as the skipped sound, that is, when the skipped sound is not recognized, the reproduction is continued.

When it is determined that the count value b of the counter 13 is equal to or larger than a predetermined value, that is, when the error detection flag a is output for a period in which it is determined that a sound skip occurs, the sound skip determination means 11-1 outputs a write stop signal. Is generated.
When the write stop output is generated, the rotation drive of the digital audio disc 2 is stopped and the writing of the digital audio data to the memory 8 is stopped. Even during the period when the writing is stopped, the reading of the digital audio data from the memory 8 is continued, and the audio is not interrupted.

On the other hand, when the writing is stopped, the first error detection flag a from which the writing stop output is generated is generated.
The optical pickup 5 is moved to a position on the digital audio disc 2 corresponding to the address data at the time of occurrence, and the digital audio data is detected from the track position of the moved digital audio disc 2, and the corresponding address position is detected. It is written in the memory 8 from.

Since the reading is performed even during the period when the writing is stopped, the digital audio data stored in the memory 8 decreases, and the writing speed is normally reproduced from when the second predetermined amount is reached. Writing is performed at twice the speed of time, and the digital audio disc 2 is rotationally driven at twice the speed of normal reproduction. Therefore, the digital voice data in the memory 8 is not lost and the voice is not interrupted.

In this case, the optical pickup 5 is not moved when there is a flaw or the like that cannot be determined as skipped sound, and the optical pickup 5 is frequently used as in the conventional case.
Does not repeatedly move, and the optical pickup 5 is moved only when there is a flaw or the like that is determined to be skipped sound.

Next, a second embodiment of the present invention will be described. FIG. 3 is a block diagram showing the configuration of the second embodiment of the present invention. In the digital audio disc player 1A of the second embodiment, the same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the second embodiment, instead of the skipping determining means 11-1 in the first embodiment, the microcomputer 11 has a cycle in which the address synchronization signal c is input (the cycle of the address synchronization signal c is a compact disc. Approximately 7.5 when the player is driven at twice the normal speed
msec) is detected and a skipping determination unit 11-1A that determines a skipping when a period not input in a predetermined cycle continues for a predetermined period, for example, 30 msec.

Therefore, in the second embodiment, when the period of the address synchronization signal is not a predetermined period and continues for a predetermined period, the skipping determining unit 11-1A determines that the skipping occurs, and the skipping determining unit 11 does. The same operation is performed as when -1 is determined to be a skipped sound. As a result, the optical pickup 5 will not be moved when there is a flaw that cannot be determined as skipped sound, and the optical pickup 5 will not be repeatedly moved as frequently as in the conventional case. The optical pickup 5 is moved only when there is a flaw or the like that is determined to be.

Next, a third embodiment of the present invention will be described. FIG. 4 is a block diagram showing the configuration of the third exemplary embodiment of the present invention. In the digital audio disc player 1B of the third embodiment, the same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the third embodiment, instead of the sound skip determination means 11-1 in the first embodiment, the address correct / wrong signal d (compact disc) output to the microcomputer 11 in synchronization with the address synchronization signal c. In the case of a player, a CRC check result signal obtained by checking the subcode Q for error, that is, a CRCF signal) is input,
When the address correct / wrong signal d is a positive signal, the reset signal g is output to the preset timer 13, the preset timer 13 measures the period of the error signal, and the overflow signal f is received when the measured value exceeds a predetermined value. A sound skip determining unit 11-1B that determines that sound is skipped is provided.

Therefore, in the third embodiment, when the overflow signal f is output from the preset timer 13 which continuously counts that the address correct / wrong signal d is an erroneous signal, that is, the address correct / wrong signal d is an erroneous signal. When the above condition continues for a predetermined period, the sound skip determining unit 11-1B determines that the sound skip occurs, and the same operation as that performed when the sound skip determining unit 11-1 determines that the sound skip occurs is performed. As a result, the optical pickup 5 will not be moved when a flaw or the like that cannot be discriminated as a skipped sound is generated, and the optical pickup 5 will not be repeatedly moved as frequently as in the conventional case. The optical pickup 5 is moved only when there is a flaw or the like that is determined to be.

Next, a fourth embodiment of the present invention will be described. FIG. 5 is a block diagram showing the configuration of the fourth exemplary embodiment of the present invention.

Reference numeral 1C indicates a digital audio disc player of the fourth embodiment. The digital audio disc 2 is a motor 4 which is driven under the control of the servo circuit 3.
It is driven to rotate by. Recorded information is read by the optical pickup 5 from the rotationally driven digital audio disk 2. Focus information, tracking information, etc. in the recorded information read by the optical pickup 5 are supplied to the servo circuit 3 to be used for drive control of the motor 4 and position control of the pickup 5, and under the control of the servo circuit 3. , The rotation of the motor 4 is controlled, and the relative position of the pickup 5 with respect to the digital audio disc 2 is controlled.

R read by the optical pickup 5
The F signal is amplified in the high frequency amplifier 6, and the amplified RF signal is subjected to signal processing such as EFM demodulation, error detection and error correction in the signal processing circuit 7. The signal-processed digital audio data is temporarily stored in the memory 8 under the control of the memory controller 10 at a speed equal to or higher than the speed corresponding to the normal reproduction speed, and stored at the speed corresponding to the normal reproduction speed. The data is sequentially read out from the data No. 8, supplied to the D / A converter 9, converted into an analog signal, and output.

The digital audio disc player 1 of this embodiment is the digital audio disc player 1.
11 for controlling a computer and a key input device 1 for supplying an output to the microcomputer 11
2, the signal processing circuit 7 sends the address synchronization signal c and the address data e to the microcomputer 11. The key input device 12 also includes a fast-forward instruction key 12-1 and a fast-reverse instruction key 12-2 for instructing fast-forward and fast-reverse, respectively.

Here, the microcomputer 11 functionally detects a skipping period when the address synchronization signal c is input, and determines a skipping period when a period in which the address synchronizing signal c is not input continues for a predetermined period. 11-1A and when the digital audio data is written in the memory 8, until the first predetermined amount of digital audio data is accumulated and the second
When it decreases to a predetermined amount, it is doubled at the speed of normal reproduction, and when the first predetermined amount is accumulated, it reaches the second predetermined amount at the speed of normal reproduction. And a drive control means 11-2 for controlling the drive via the servo circuit 3 so as to stop the drive while the write stop output is generated.

Further, the microcomputer 11 is functionally fast when the first predetermined amount of digital audio data is written in the memory 8 and when it is reduced to the second predetermined amount, which corresponds to the speed during normal reproduction. The digital audio data is written in the memory 8 at a speed twice as fast as that of the digital audio data. Writing is stopped when the writing stop output is generated, and the digital audio data is always read from the memory 8 at a speed corresponding to the speed at the time of normal reproduction, and is written when a fast-forward or fast-reverse instruction is given. And a read / write control means 11-3A for starting reading when the kick of a predetermined number of tracks is completed. The write / read control means 11-3A is the memory controller 1
0 is controlled, and in cooperation with the memory controller 10, digital audio data is written in the memory 8 and read from the memory 8 is controlled.

Further, the microcomputer 11 functionally detects address skipping by the sound skipping determining means 11-1A and when a write stop output is generated, the address data detected from the digital audio disk 2 together with the digital audio data. e and the address synchronization signal c for reading out the address data e, the optical pickup 5 is moved in cooperation with the servo circuit 3 to a position corresponding to the address data immediately before it is determined to be skipped, and a fast-forward or fast-return instruction is issued. When this is done, the position of the optical pickup 5 is moved in cooperation with the servo circuit 3 to a position corresponding to the read address of the memory 8 when a fast-forward or fast-return instruction is given, and a kick is performed for a predetermined number of tracks. The movement control means 11-4A is included.

In the fourth embodiment constructed as described above, the operation when the sound skip occurs is the same as that of the second embodiment. The operation when a fast-forward instruction or a fast-reverse instruction is given will be described based on the flowcharts of FIGS. 6 and 7.

When neither the fast-forwarding instruction nor the fast-returning instruction is given, a normal reproducing operation is performed. When a fast-return instruction is issued (step S2), a signal for lowering the volume is sent from the microcomputer 11 to the memory controller 10 to lower the volume (step S4). The volume reduction may be performed by controlling a volume control means (not shown) in a low frequency stage. Subsequent to step S4, writing to the memory 8 is stopped under the control of the writing / reading control means 11-3A (step S5).

Subsequent to the stop of writing to the memory 8 in step S5, under the control of the pickup movement control means 11-4A, the read address of the memory 8 when the position of the optical pickup 5 is instructed to rewind. Is moved to a position corresponding to (step S6). Following this movement, a predetermined time, for example, 100 msec has elapsed (step S7), and it is checked whether or not a fast rewind instruction has been issued (step S8).

When it is determined in step S8 that the fast-return instruction has not been issued, the process is returned to step S3, that is, the normal reproduction, and the normal reproduction is performed from the position of the optical pickup 5 returned in step S6. When it is determined in step S8 that the fast-return instruction is continuously issued, writing to the memory 8 is stopped (step S9), and following step S9, the optical pickup 5
Is kicked on the inner side of the digital audio disc 2 by a predetermined number of tracks, for example, 8 tracks (step S1)
0). Fast rewind is performed by this track kick.

Following step S10, the write address and the read address for the memory 8 are made to coincide with each other (step S11), and writing and reading are performed from the address position of the memory 8 corresponding to the position of 8 and the rack-kicked optical pickup 5. Is started (step S12),
Step S7 is executed. While the fast reverse is instructed, the 8-track kick is repeated to perform the fast reverse. At this time, it is determined whether or not the reproduction is performed for the period of step S7 and the fast return is performed to the desired position.

When a fast-forward instruction is issued (step S
1) In the same manner as when a fast-return instruction is issued, the optical pickup 5 kicks the track by 8 tracks to the outer peripheral side of the digital audio disc 2 to perform fast-forwarding (steps S14 to 22).

As described above, in the fourth embodiment, at the time of fast-forwarding and fast-rewinding, the optical pickup 5 is moved to the position corresponding to the read address of the memory 8 being reproduced, and then the track kick is performed. Therefore, a lot of sound is skipped in the case of fast-forward, and the sound does not return much in the case of fast-reverse.

[0048]

As described above, according to the digital audio disc player of the present invention, writing is stopped and the pickup is moved because the number of occurrences of error flags of digital audio data is counted for a predetermined period. When the numerical value is equal to or greater than a predetermined value, when the state in which the address synchronization signal is not input in the predetermined period continues for a predetermined period, or when the error of the address data continues for a predetermined period,
Only when it is determined that the sound is skipped, there is an effect that the pickup is not frequently moved as in the conventional case.

Further, according to the digital audio disc player of the present invention, when a fast-forward instruction or a fast-reverse instruction is given during reproduction, the digital audio disc player is picked up at a position on the digital audio disc corresponding to the read address of the storage means at that time. Is moved so that the pickup jumps a specified number of tracks in the direction corresponding to fast-forward or fast-reverse after the pickup moves, so the number of jump tracks does not change during fast-forward and fast-reverse, It has the effect of sometimes jumping a large number of tracks and not going back too much when fast-forwarding.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a schematic diagram for explaining a stored digital audio data amount of a memory in the first embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a second exemplary embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a third exemplary embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a fourth exemplary embodiment of the present invention.

FIG. 6 is a flowchart for explaining the operation of the fourth embodiment of the present invention.

FIG. 7 is a flowchart for explaining the operation of the fourth embodiment of the present invention.

[Explanation of symbols]

2 Digital Audio Disc 3 Servo Circuit 4 Motor 5 Hikari Pickup 7 Signal Processing Circuit 8 Memory 9 D / A Converter 10 Memory Controller 11 Microcomputers 11-1, 11-1A and 11-1B Sound Drop Judgment Means 11-2 Drive Control Means 11-3 and 11-3A Writing / reading control means 11-4 and 11-1A Pickup movement control means 12-1 Fast-forward instruction key 12-2 Fast-return instruction key

Claims (4)

[Claims] 1. A digital audio disc player provided with a storage control means for writing the signal-processed digital audio data into the storage means at a speed equal to or higher than the speed corresponding to the reproduction speed and for continuing the reading from the storage means at the reproduction speed. In (1), the number of occurrences of the error flag of the digital audio data is counted for a predetermined period, and when the count value is equal to or more than a predetermined value, the writing stop means for stopping only the writing is judged and the writing is stopped when the writing is stopped. A movement control means for moving the pickup to the position of the digital audio disc corresponding to the address immediately before the stop and a writing restart control means for writing the digital audio data sequentially read from the moved pickup position to the storage means are provided. Characteristic digital audio disc player. 2. The digital audio disc player according to claim 1, wherein the writing stop means produces a sound when it continuously detects that the cycle in which the address synchronization signal recorded together with the digital audio data is inputted is not the predetermined cycle. A digital audio disc player, characterized in that it is a means for determining that a jump has occurred and stopping writing. 3. The digital audio disk player according to claim 1, wherein the writing stop means determines that the data is skipped when an error in the address data recorded together with the digital audio data is continuously detected for a predetermined period, and stops writing. A digital audio disc player characterized by means. 4. A digital audio disc player equipped with a storage control means for writing the signal-processed digital audio data into the storage means at a speed equal to or higher than the speed corresponding to the reproduction speed and for continuing the reading from the storage means at the reproduction speed. In the fast-forwarding instruction during playback, or the fast-forwarding after the movement of the pickup by the moving means, the movement control means for moving the pickup to the position on the digital audio disk corresponding to the read address of the storage means when the fast-reverse instruction is given, Alternatively, a track jump means for causing the pickup to jump a predetermined number of tracks in a direction corresponding to fast-reverse, and an address system for matching the read address and the write address in the storage means with the address corresponding to the jumped pickup position following the predetermined track number jump. A digital audio disc player comprising a control means and a write / read control means for writing and reading digital audio data from an address of a storage means controlled by the address control means.