JPH09198851A - Information recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely perform the division of successive information in the position desired by users without complicated operation by users being needed when the information can be divided. SOLUTION: When an operation inputting part 12 is operated to instruct dividing operation, a main control circuit 13 controls a memory control circuit 5 to stop the reading of information from a memory 4 and at the same time to stop the reading of information from a magneto-optical disk 1 and also controls the memory control circuit 5 to read out information in order from the oldest information written in the memory 4 as information read out from the memory 4 towards new information. When it reaches a data read-out position (dividing position) at the time of normal reproduction, the read-out operation from the memory 4 is once stopped and a predetermined silent period is inserted thereinto and after a predetermined period elapses, successively, information is read out in order from newer information than the data read-out position at the time of normal reproduction towards new information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus capable of dividing information continuously recorded on a recording medium at arbitrary positions.

[0002]

2. Description of the Related Art Conventionally, as an information recording / reproducing apparatus capable of dividing information continuously recorded on a recording medium at arbitrary positions,
Tape recorder and recording / playback MD (Mini Disc)
There is a device etc., and in such a recording / reproducing MD device,
During information reproduction, after performing a pause operation at a desired division position desired by the user to put it in a pause state, the division position is recognized by performing a division instruction operation, and the address information of each information unit after the division is performed. Create UTO
C (User Table Of Contents)
Information is recorded on a recording medium to divide the information at a position desired by the user.

Further, in a magnetic tape recording device such as a tape recorder, usually, information division and song interval detection are performed depending on the presence / absence of a silent period. However, live recording and air-checked information segmentation and song interval detection are performed. As a method to be performed, a method has been proposed in which a mark is attached to a desired position of the user by a predetermined operation by the user, and information division and inter-track detection are performed based on the mark recorded on the magnetic tape.

[0004]

However, in the above-mentioned conventional apparatus, since the division position of the reproduction information is set by the user's predetermined operation, it is difficult to perform the accurate division at the position desired by the user. The determination of whether the division position is correct requires the user to reproduce the information from the recording medium, which requires a complicated operation.

Further, when it is determined that the division position is not correct in the information reproduced based on the reproduction operation by the user, the user must set the division position to the correct position desired by the user. There is a problem in that it is necessary to restore the original information by synthesizing the information divided by the operation into one piece of information and perform the dividing operation again based on the returned information, which requires a complicated operation for the user. It was

It is an object of the present invention to provide an information recording / reproducing apparatus which can surely perform continuous division of information at a position desired by a user without requiring a complicated operation by the user. It is a thing.

[0007]

In order to achieve the above object, the invention according to claim 1 provides an information recording / reproducing apparatus capable of dividing information recorded continuously on a recording medium at arbitrary positions. Setting means for setting the division position, storage means for storing the division position set by the setting means,
Reproduction control means for continuously reproducing information before and after the division position stored in the storage means, and inserting a predetermined silent period at the division position in the reproduction information;
Operation means for inputting the correctness of the division position and recording control means for recording the division position stored in the storage means on the recording medium when the division position is input by the operation means are provided. It is a thing.

According to a second aspect of the present invention, the storage means is
When it is input by the operating means that the division position is incorrect, the stored division position is erased.

According to a third aspect of the present invention, the reproduction control means, when the correctness input is not made by the operation means,
The continuous reproduction of the information before and after the division position stored in the storage means is repeatedly performed, and at the time of the repeated reproduction, a predetermined silent period is inserted at the division position in the reproduction information.

According to a fourth aspect of the invention, the operating means is
While instructing to move the division position back and forth in the information reproduced based on the reproduction control by the reproduction control means, the storage means, when the movement instruction is given by the operation means, after the movement based on the movement instruction. The division position of is stored.

According to a fifth aspect of the invention, when the division position is set by the setting means, an information storage means for storing information before and after the division position is provided, and the reproduction control means is provided in the information storage means. The stored information is continuously reproduced, and a predetermined silent period is inserted at the division position in the reproduction information.

Therefore, according to the first aspect of the present invention, when the setting means sets the division position while the information continuously recorded on the recording medium is being reproduced, the storage means stores the division position. After that, the reproduction control means reproduces the information before the predetermined position of the division position stored in the storage means,
When the reproduction information reaches the division position, a predetermined silent period is inserted, and the information after the division position is reproduced again for the predetermined period, and when the division position is input by the operating means, the storage control means stores the information. By recording the division position stored in the means on the recording medium, it is possible to divide the continuous information recorded on the recording medium.

According to the second aspect of the present invention, when the setting means sets the division position while the information continuously recorded on the recording medium is being reproduced, after the storage means stores the division position. , The reproduction control means reproduces the information before the division position stored by the storage means for a predetermined period of time, and when the reproduction information reaches the division position, inserts a predetermined silent period and again reproduces the information after the division position for a predetermined period. On the other hand, when the operation unit inputs the incorrect division position while reproducing, by deleting the division position stored in the storage unit, the division of the continuous information recorded on the recording medium can be canceled.

According to the third aspect of the present invention, when the setting means sets the division position while the information continuously recorded on the recording medium is being reproduced, after the storage means stores the division position. , The reproduction control means reproduces the information before the division position stored by the storage means for a predetermined period of time, and when the reproduction information reaches the division position, inserts a predetermined silent period and again reproduces the information after the division position for a predetermined period. The reproduction control means performs reproduction control such that reproduction is performed until the correctness of the division position is input by the operation means, so that the determination by the user can be reliably performed.

According to the fourth aspect of the invention, when the setting means sets the division position while the information continuously recorded on the recording medium is being reproduced, after the storage means stores the division position. , The reproduction control means reproduces the information before the division position stored by the storage means for a predetermined period of time, and when the reproduction information reaches the division position, inserts a predetermined silent period and again reproduces the information after the division position for a predetermined period. While the reproduction control such as reproduction is repeatedly performed until the correctness input of the division position is made by the operation means, when the operation means gives an instruction to move the division position back and forth, the division position after the movement based on the front and back movement instruction. Is stored in the storage means, and the reproduction control means performs the information reproduction before and after the stored division position and the insertion of the silent period, thereby facilitating the change and confirmation of the division position. Ukoto can.

According to the invention described in claim 5, when the setting means sets the division position in a state where the information continuously recorded on the recording medium is reproduced, the storage means stores the set division position. At the same time, the information storage means stores the information before and after the division position for a predetermined period, and thereafter, the reproduction control means reproduces the information stored in the information storage means and a predetermined silent period at the division position in the reproduction information. By inserting, the division position can be confirmed quickly.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic functional block diagram showing an electrical configuration of an information recording / reproducing apparatus according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing an example of a data configuration of a memory in the information recording / reproducing apparatus, FIG. FIG. 4 is a flow chart showing operation control at the time of division setting in the information recording / reproducing apparatus, and FIG. 4 is a flow chart showing operation control at division confirmation reproduction in the information recording / reproducing apparatus. In FIG. 1, reference numeral 1 denotes a magneto-optical disk capable of recording and reproducing various data such as music information and video information and address information of the various data, and 2 denotes a magneto-optical disk 1 irradiated with a laser beam and returned by the returned light An optical pickup 3 for reading the information recorded on the magneto-optical disk 1, a demodulation circuit 3 for demodulating the information read by the optical pickup 2, a memory 4 for storing the information demodulated by the demodulation circuit 3, and a demodulation circuit 3 The memory control circuit 6 stores the information demodulated by the memory 4 at a predetermined timing and reads the information stored in the memory 4 at a predetermined timing. Reference numeral 6 denotes the information read from the memory 4 by the memory control circuit 5. A data decompressor is used to compress various data digitally converted by the A / D converter 8 described later. Expansion circuit, 7 is a D / A converter for converting the information data expanded by the compression and expansion circuit 6 into an analog signal, the D / A
The information converted into analog by the converter 7 is output to a speaker, a display, or the like (not shown) through the input / output terminal.

Reference numeral 8 is a D / A converter for converting various data such as music information or video information inputted through the input / output terminal into a digital signal, and the information digitally converted by the D / A converter 8 is compressed. After the data is compressed by the decompression circuit 6, it is stored in the memory 4 by the memory control circuit 5 and read at a predetermined timing. Reference numeral 9 is a modulation circuit that modulates the information read from the memory 4 by the memory control circuit 5, and 10 is a magnetic head that applies magnetic field modulation to the magneto-optical disk 1 based on the information modulated by the modulation circuit 9. When data is recorded on the magneto-optical disk 1 by the head 10,
The magnetic head 10 and the optical pickup 2 face each other across the magneto-optical disk 1 and follow each other and move, and the optical pickup 2 outputs a high-power laser beam different from that during data reproduction.

Reference numeral 11 denotes a display section for displaying the operating state of the apparatus based on a control signal from a main control circuit 13 which will be described later.
Is an operation input unit including a function key for instructing operation such as reproduction, recording, division, composition, and erasing, and an operation key for instructing movement of the music selection division position, and 13 is the magneto-optical disk 1 demodulated by the demodulation circuit 3. From memory, memory control circuit 5
Based on the detection signal from the control signal and the operation instruction or the movement instruction from the operation input unit 12, the write timing and the read timing are controlled by the memory control circuit 5, the display control is performed by the display unit 11, and the division / combine / The UTOC information is created based on the erase operation instruction.

The magneto-optical disk 1 is rotationally driven by a spindle motor (not shown) which is controlled by the main control circuit 13, while the optical pickup 2 and the magnetic head 10 are servo circuits (not shown) which are controlled by the main control circuit 13. It is provided so as to be movable in the radial direction of the magneto-optical disk 1 by a drive mechanism.

With respect to the information recording / reproducing apparatus configured as described above, the operation control at the time of information division will be described.

When the information recorded on the magneto-optical disk 1 is read by the optical pickup 2 based on the reproduction operation instruction from the operation input unit 12, the information read by the optical pickup 2 is demodulated by the demodulation circuit 5. While being written in the memory 4 by the memory control circuit 5, the information written in the memory 4 is read by the memory control circuit 5 at a predetermined transmission rate, and the read information is expanded by the compression / expansion circuit 6. After that, it is converted into an analog signal by the D / A converter 7, externally output as an analog signal, and emitted by a speaker (not shown) or displayed on a display.

Information read from the magneto-optical disk 1 is temporarily stored in the memory 4 by the memory control circuit 5,
The reason for performing the reading operation is to absorb the difference between the transmission rate of the magneto-optical disk 1 and the transmission rate of the analog signal output externally, and when information cannot be read from the magneto-optical disk 1 due to vibration or the like. This is to prevent the non-output of the information of No. 1. The data structure of the memory 4 is managed in units of address (absolute address) as shown in FIG. The memory control circuit 5 reads out data which is erased and which is substantially at the center of the data that is written during normal reproduction.

Then, as described above, when the information read from the magneto-optical disk 1 is externally output, the user operates the operation input unit 12 at a position where the user wants to divide the information. Instruct operation (step F1)
Then, the main control circuit 13 controls the memory control circuit 5 to stop the reading of information from the memory 4 (step F
Along with 2), the spindle motor and the optical pickup 2 (not shown) are controlled to stop the reading of information from the magneto-optical disk 1 (step F3), and then the main control circuit 13 controls the display unit 11 to perform the division mode. Is notified (step F4), and the memory control circuit 5 is controlled to perform division confirmation reproduction (step F4).
5).

This division confirmation reproduction means the memory control circuit 5
Is sequentially read from the oldest information written in the memory 4 to the new information as the information read from the memory 4, that is, in the direction opposite to the data writing direction (step F21). When the read position (division position) is reached (step F2
2) Then, the reading from the memory 4 is temporarily stopped, a predetermined silent period is inserted (step F23), and after the predetermined period has elapsed (step F24), information that is newer than the data reading position during the normal reproduction is continued. Starting from, the new information is read out (step F25),
When the latest information is reached (step F26), the reading from the memory 4 is temporarily stopped to insert a predetermined silent period (step F27), and after the predetermined period has elapsed (step F28), the memory 4 is read again. The operation of reading from the oldest written information is repeated.

Therefore, according to such division confirmation reproduction, since the information before and after the division position set by the user is reproduced with a predetermined silent period interposed therebetween, the division set by the user is divided. It is possible to quickly and clearly determine whether the position is correct or incorrect.

When the user operates the operation input unit 12 to instruct to shift the division position to the front (step F6) during such division confirmation reproduction, the main control circuit 13 causes the memory control circuit 5 to operate. Is controlled to move the boundary of the data read position (division position) in the normal reproduction in the memory 4 in the direction of the old information written in the memory 4 (step F7), while the user operates the operation input unit 12. Then, when the division position is instructed to move backward (step F8), the main control circuit 13 controls the memory control circuit 5 to set the boundary of the data read position (division position) in the memory 4 at the time of normal reproduction to the memory. It is moved in the direction of the new information written in 4 (step F9).

Then, when the boundary of the data read position in the normal reproduction in the memory 4 is moved by the above operation control, the position where the silent period is inserted in the division confirmation reproduction operation is also similarly moved.

On the other hand, during division confirmation reproduction, when the user operates the operation input unit 12 to instruct to stop the division operation (step F10), the main control circuit 13 controls the memory control circuit 5 to perform division. After the confirmation reproduction is stopped (step F11), the division operation is ended, and when the user operates the operation input unit 12 to instruct to register the set division position (step F12), the main control circuit 13 is started. Controls the memory control circuit 5 to stop the division confirmation reproduction (step F13), obtains the data reading position in the current memory 4 during the normal reproduction, and based on the address information of the information of the position, UTOC information is created (step F14).

Then, the main control circuit 13 controls a spindle motor, a servo circuit, and a drive mechanism (not shown) to rotate the magneto-optical disk 1 and move the optical pickup 2 and the magnetic head 10 to predetermined positions for information. Newly created U after recording standby
Modulation is performed by outputting the TOC information to the modulation circuit 8 and is given to the magnetic head 10 to record the UTOC information after information division on the magneto-optical disk 1 (step F15), and then the division operation is ended.

Therefore, according to the above operation control, the division position once set by the user can be easily moved to the front and back of the information by a simple operation, and the division can be canceled by a complicated operation by the user. It can be done easily without need.

In the present embodiment, the recording / reproducing MD device has been described as the information recording / reproducing device, but the information recording / reproducing device is not limited to this. For example, a magnetic tape recording / reproducing device such as a tape recorder may be used. A mark may be attached on the tape.

[0034]

As described above, according to the first or second aspect of the invention, when the division position is set based on the operation by the user, it is before and after the division position in which the division position is a silent period. Information is reproduced for a predetermined period, it is possible to easily confirm the division position set by the user without requiring a complicated operation by the user, and the division position can be confirmed after confirmation of the division position. Since the data can be recorded on the recording medium or invalidated, when the division position is erroneous at the time of confirming the division position, the division position can be reset easily without complicated operation.

According to the third aspect of the invention, when the division position is set based on the operation by the user, the information before and after the division position in which the division position is a silent period is repeatedly reproduced for a predetermined period. The division position set by the user can be surely and easily confirmed without requiring a complicated operation by the user.

According to the fourth aspect of the invention, when the division position is set based on the operation by the user, the information before and after the division position in which the division position is the silent period is repeatedly reproduced for a predetermined period. Since the division position can be moved before and after the reproduction information by the operation of the user, the incorrect division position once set can be surely set to the position desired by the user without requiring a complicated operation by the user. And it can be easily reset.

According to the invention described in claim 5, when the division position is set based on the operation by the user, the information before and after the division position is stored for a predetermined period, and the division of the stored information is performed. Since the information stored as the silent period is reproduced, the user can easily confirm the division position set by the user without requiring complicated operations and shorten the time required for confirmation. can do.

[Brief description of drawings]

FIG. 1 is a schematic functional block diagram showing an electrical configuration of an information recording / reproducing apparatus that is an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a data configuration example of a memory in the information recording / reproducing apparatus.

FIG. 3 is a flowchart showing operation control when dividing information in the information recording / reproducing apparatus.

FIG. 4 is a flowchart showing operation control during division confirmation reproduction in the information recording / reproducing apparatus.

[Explanation of symbols]

 1 magneto-optical disk 2 optical pickup 3 demodulation circuit 4 memory 5 memory control circuit 6 compression / expansion circuit 7 D / A converter 8 A / D converter 9 modulation circuit 10 magnetic head 11 display section 12 operation input section 13 main control circuit

Claims (5)

[Claims] 1. An information recording / reproducing apparatus capable of dividing information continuously recorded on a recording medium at arbitrary positions, and setting means for setting the dividing positions, and storing the dividing positions set by the setting means. Storing means, reproduction control means for continuously reproducing the information before and after the division position stored in the storage means, and inserting a predetermined silent period at the division position in the reproduction information; An operation means for inputting correctness and a recording control means for recording the division position stored in the storage means on the recording medium when the division position is input by the operation means are correct. Information recording / reproducing apparatus. 2. The information recording / reproducing apparatus according to claim 1, wherein said storage means erases the stored division position when the division position is inputted by the operating means as being incorrect. 3. The reproduction control means repeats continuous reproduction of information before and after the division position stored in the storage means when correctness input is not made by the operation means, and at the time of the repeated reproduction, The information recording / reproducing apparatus according to claim 1 or 2, wherein a predetermined silent period is inserted at the division position in the reproduction information. 4. The operating means gives an instruction to move the divided position back and forth in the information reproduced based on reproduction control by the reproduction control means, while the storage means gives a movement instruction by the operating means. The information recording / reproducing apparatus according to claim 3, wherein the divided position after the movement based on the movement instruction is stored. 5. When the division position is set by the setting means, an information storage means for storing information before and after the division position is provided, and the reproduction control means continuously reproduces the information stored in the information storage means. 5. The information recording / reproducing apparatus according to claim 1, wherein the information recording / reproducing apparatus inserts a predetermined silent period at the divided position in the reproduction information.