JP3017008B2 - Information recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to converting an analog audio signal obtained by a microphone or the like into a digital signal and recording it on a magneto-optical disk, or recording symbol characters input by a key or a pen input on the magneto-optical disk. While
At the time of reproduction, an information recording / reproducing device such as a dictation recorder having a display function of outputting a digital audio signal recorded on the magneto-optical disk through a speaker or the like or displaying a digital symbol character signal on a display device such as a liquid crystal display. It is about.

[0002]

2. Description of the Related Art As a device for recording and reproducing sound, a cassette tape recorder using a magnetic tape such as a cassette tape has been generally known. The device using this magnetic tape has advantages such as the tape itself being inexpensive and being able to record and reproduce for a long time. However, in order to find the desired recording information, operations such as fast forward and rewind are required. And it takes time to access.

Therefore, in recent years, an information recording / reproducing apparatus for recording / reproducing information such as audio using a magneto-optical disk or the like instead of a magnetic tape has been developed. As described above, an information recording / reproducing apparatus using a disk such as a magneto-optical disk as a recording medium has an access speed of usually less than 1 second,
Since the desired recording information can be searched for almost instantaneously, it is very convenient as a recorder for recording the contents of a meeting or for dictation.

When recording an audio signal using an information recording / reproducing apparatus using a magneto-optical disk as a recording medium as described above, a silent state such as a break between music pieces or a break in a conversation during a conversation, for example, occurs during the recording. Even if the time of the silent state is prolonged, the silent portion is recorded as it is on a recording medium such as a disc, and the recording medium and the battery are wasted.
Problems such as prolonged silence during reproduction will occur.

In view of the above-mentioned problem, there is provided a silence detecting means for detecting silence of an input audio signal, and a recording operation of an audio signal or the like is interrupted in accordance with a detection output from the silence detecting means. In addition, there is a method of preventing an increase in a silent recording portion on a recording medium.

When recording the proceedings of a meeting on a recording medium such as a magneto-optical disk, the track number may be appropriately updated at a break between meetings or the like. That is, the track number and the start address of the track are
It is associated with an address on the magneto-optical disk, and TOC (Table OfCo) is used as track arrangement information.
entents). Therefore, the information recording / reproducing apparatus first reproduces an area called a lead-in area recorded in the TOC on the disc, and preliminarily stores information such as the number of tracks included in the disc and the address of the start position of each track. I am getting it. Thus, at the time of reproduction, by designating this track number, it is possible to access recording data such as audio signals separated at an appropriate place at high speed.

[0007]

However, in the above-mentioned conventional information recording / reproducing apparatus, when reproducing the minutes of a meeting recorded over a long period of time, audio data divided into tracks at an appropriate place is required. It is possible to find the beginning of the track, but until the content of the audio data of each track is reproduced to some extent, it is not clear what the content is.

Therefore, there is a problem that it takes time to search for desired recording information, that is, audio data of a target track. Also, when the recorded voice data is being discussed by a plurality of speakers, it is difficult to recognize who the speaker is.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to allow a user to easily recognize the content of audio data of a recorded track, To provide an information recording / reproducing apparatus that can easily search for audio data of a track.

[0010]

In order to achieve the above object, an information recording / reproducing apparatus according to the first aspect of the present invention converts analog data input from a first data input means into digital data at the time of recording. The digital data is recorded on a recording medium, and at the time of reproduction, the digital data recorded on the recording medium is converted into analog data and output from a data output means. At the time of data recording, second data input means of another system for inputting another data to a break portion of the input data is provided, and data before and after the break portion of the input data by the first data input means are provided. The data and the data input to the discontinuous portion by the second data input means are respectively stored on the recording medium.
Address data indicating the address is recorded on a recording medium.
It is characterized by having been constituted as follows .

According to a second aspect of the present invention, in the information recording / reproducing apparatus of the first aspect, the first data input means comprises voice input means for inputting voice data, and the second data input means comprises: A voice input means for inputting voice data or a symbol / character input means for inputting symbol / character data, and a data identification means for distinguishing voice data and symbol / character data recorded on a recording medium from each other. It is characterized by.

According to a third aspect of the present invention, in the information recording and reproducing apparatus of the second aspect, the symbol character input means is provided with a handwritten character recognition means for recognizing a handwritten character and converting a character code. It is characterized by.

[0013]

According to the information recording / reproducing apparatus of the first aspect, during the data input by the first data input means, the input data
By inputting another data from the second data input means of another system to the interruption part of the data, the data from the second data input means is inserted between the data by the first data input means on the recording medium. Data can be recorded.

Thus, when the data recorded as described above is reproduced from the recording medium, the data input from the first data input means as the main recording data is replaced with the second data.
It can be easily confirmed by the data input from the data input means. Further, if the data from the second data input means is recorded as information data indicating the contents of the data input from the first data input means, the contents of the recorded data can be easily confirmed at the time of reproduction. Can be.

Therefore, desired data can be searched quickly, and the operability of the apparatus can be improved.

According to the information recording / reproducing apparatus of the second aspect, during recording of the sound input from the sound input means, the user uses the sound input means of another system to interrupt the sound of the input sound. It can be input and recorded on a recording medium.

[0017] Thus, it is possible to insert the data of the content to confirm the voice being recorded, such as the speaker of the voice being recorded and the content being recorded, by the voice input means of another system.

Further, when reproducing a recording medium on which data is recorded, there is provided data identification means for identifying whether the recorded data is audio data or symbol character data. In addition, symbol character data can be recorded, and symbol character data can be used as insertion data by using symbol character input means instead of the above-described separate system of voice input means.

Thus, at the time of reproduction, the contents of the recorded data can be easily confirmed by the symbol character data, so that the operability of data editing is improved.

Therefore, desired data can be searched quickly, so that the operability of the apparatus can be improved.

In the information recording / reproducing apparatus according to the third aspect, in addition to the function of the second aspect, since the handwritten character recognition means is provided as the recorded character input means, it is possible to input by handwritten characters. This makes it possible to easily input a symbol character even if a break in input data is short.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment in which the present invention is applied to a magneto-optical disk drive will be described below with reference to FIGS.

The magneto-optical disk device as an information recording / reproducing device according to the present embodiment is capable of digitizing and recording analog audio data on a magneto-optical disk as a recording medium and writing character data. . As shown in FIG. 1, such a magneto-optical disk device includes an optical pickup 1, an RF amplifier 2, an encoder / decoder / signal processing circuit 3, a memory controller 4, a shockproof memory 5, a data decompression / compression circuit 6, a converter, 7, feed motor 8, spindle motor 9, driver circuit 10, servo control circuit 11, system controller 1
2, power supply circuit 13, head driving device 14, recording head 1
5, an input device 16 and a display device 17.

The magneto-optical disk drive having the above-described configuration uses the magneto-optical disk 21 which is driven to rotate by the spindle motor 9. The recording of data on the magneto-optical disk 21 is performed by applying a modulation magnetic field according to the recording data by the recording head 15. Then, at the time of reproduction, the recording data on the magneto-optical disk 21 is magneto-optically read by the optical pickup 1.

The output of the optical pickup 1 is R
It is supplied to the F amplifier 2. The RF amplifier 2 binarizes the reproduction signal and supplies it to the encoder / decoder circuit 3, and also outputs the optical pickup 1, that is, RF (Radio).
A servo control signal such as a focus error signal and a tracking error signal is generated from a frequency (high frequency) signal and transmitted to the servo control circuit 11.

The servo control circuit 11 comprises, for example, a focus servo control circuit, a tracking servo control circuit, a spindle motor control circuit and the like. The servo control circuit 11 composed of these various control circuits supplies information indicating the control state to the system controller 12.

An input device 16 as symbol character input means is connected to the system controller 12. The input device 16 includes a key input operation section 16a and a handwritten character recognition device 16b as handwritten character recognition means. And a display device 17 composed of a liquid crystal panel or the like is connected. The system controller 12 controls a recording system and a reproduction system in an operation mode specified by operation information from the key input operation unit 16a. Also,
It is also possible to input a character code corresponding to the key from the key input operation unit 16a, and the input character code is transfer-controlled by the system controller 12 to the memory controller 4. In addition, the handwritten characters input with a pen or the like are converted into character codes by the handwritten character recognition device 16b, and the system controller 1
The transfer is controlled by the memory controller 2 to the memory controller 4. The display device 17 displays a character code read from the magneto-optical disk 21 at the time of reproduction, and displays a reproduction time.

Here, the recording / reproducing operation in the magneto-optical disk device will be described. First, the recording operation of the apparatus will be specifically described. In the recording system, a first voice input terminal 19a as voice input means as first data input means and a second voice input terminal 19b as voice input means as second data input means of another system are provided with a microphone or the like. Connect a device that converts audio, etc., to analog electrical signals. Here, selection of the analog input terminal of each of the input terminals 19a and 19b is switched by a switch 19c. The switch 19c is linked to a device connected to the first audio input terminal 19a or the second audio input terminal 19b, so that an analog signal such as audio data is input from one of the input terminals. , So that the analog signal is not input from the other input terminal.

An analog signal such as audio data input from each of the input terminals 19a and 19b is supplied to an A / D converter 7b. This analog signal is digitized in the A / D converter 7b and transferred to the data decompression / compression circuit 6.

The data expansion / compression circuit 6 compresses the time axis of the audio data transferred from the A / D converter 7b to a predetermined compression rate, for example, about 1/5, and compresses the time axis.
Transfer to

The memory controller 4 performs data expansion / decompression.
Digital data such as voice data and character data transferred from the compression circuit 6, the key input device 16a provided in the input device 16 and the handwritten character recognition device 16b is temporarily stored in the shockproof memory 5, and the data of each data is stored. The system controller 12 controls the encoder / decoder signal processing circuit 3 to read the data in the written order.
The writing and reading operations of digital information to and from the shock proof memory 5 are controlled in accordance with the instructions.

The shock-proof memory 5 temporarily stores voice data and digital data of character data transferred from the memory controller 4 and operates at the time of an after-recording function according to an instruction of the system controller 12. Memory is appropriate.

Therefore, the shock-proof memory 5 composed of the semiconductor memory comprises an encoder / decoder signal processing circuit 3, a data decompression / compression circuit 6, and a key input device 1.
6a, which is disposed between the handwritten character recognition device 16b to prevent interruption of recording / reproduction due to disturbances such as vibrations, and the transfer speed of the encoder / decoder signal processing circuit 3 and the data expansion / compression circuit 6 Absorb the difference between
It is provided for the purpose of enabling the after record function.

The encoder / decoder signal processing circuit 3
In addition to being provided so as to be able to communicate with the system controller 12 to perform processing such as subcode, the signal transferred from the memory controller 4 is further subjected to signal processing such as addition of an error correction code, and is modulated to an RF signal. The data is converted and transferred to the head driving device 14.

The head driving device 14 transfers the RF signal transferred from the encoder / decoder signal processing circuit 3 to the recording head 15 and also records the RF signal on the target recording track of the disk 21 by the recording head 15 accurately. The recording head 15 is moved in a direction perpendicular to the recording tracks of the disk 21 as described above.

The recording head 15 records data by irradiating a laser to a portion of the recording area of the disk 21 to which a magnetic field is applied by an RF signal.

The system controller 12 comprises a microcomputer for centrally managing the encoder / decoder signal processing circuit 3, the memory controller 4, the servo control circuit 11, and the head driving device 14, and the processing operation inputted from the input device 16 In addition to controlling the above devices and circuits so that a plurality of pieces of information recorded on the disc 21 are processed based on the reproduction order, the disc drive is controlled via the head driving device 14 and the recording head 15 as described later. 21 is rewritten.

Further, the system controller 12 includes:
It incorporates a data identification device 12a as data identification means. The data identification device 12 a identifies whether the input data is character data or audio data, and writes the identification code of the program on the magneto-optical disk 21. The operation of the data identification device 12a will be described later.

The input device 16 includes a key input device 16a, a handwritten character recognition device 16b, and the like.
6b or the key input operation signal input for editing is transmitted to the system controller 1.
2 is output.

The servo control circuit 11 is driven by the driver circuit 10 so that the operation of causing the light emitted from the optical pickup 1 to follow the target recording track of the disk 21 is performed accurately. Is a circuit that performs feedback control of each device.

The servo control circuit 11 determines a control amount such as focus, tracking, and spin based on a servo control signal from the RF amplifier 2 and a control signal from the system controller 12, and uses the control amount as a control signal as a driver. Transfer to circuit 10.

The driver circuit 10 responds to the control signal from the servo control circuit 11 by using the optical pickup 1.
In order to drive the objective lens, the feed motor 8 and the spindle motor 9, power is supplied to these devices.

The feed motor 8 moves the optical pickup 1 in a direction perpendicular to the recording tracks of the disk 21 so that the reading of the RF signal to the target recording track of the disk 21 by the optical pickup 1 is performed accurately. Motor. In addition, the spindle motor 9
Is a motor for rotating the disk 21.

The power supply circuit 13 supplies power to the optical pickup 1, the RF amplifier 2, the encoder / decoder signal processing circuit 3, the driver circuit 10, the system controller 12, the servo control circuit 11, the head drive device 14, and the like. It has become.

Next, the reproducing operation will be described. The optical pickup 1 is a reproducing head that irradiates a disk 21 as a recordable recording medium with light and takes in reflected light from the magneto-optical disk 21, and reads an RF signal recorded on the magneto-optical disk 21. I have.

The RF amplifier 2 amplifies the RF signal read by the optical pickup 1, generates a servo control signal such as a focus error signal and a tracking error signal from the RF signal, and transfers the servo control signal to the servo control circuit 11.

The RF amplifier 2 is connected to the optical pickup 1
, A focus error signal and a tracking error signal are extracted from the output, and the reproduced signal is binarized and supplied to the encoder / decoder circuit 3.

The encoder / decoder signal processing circuit 3
It is provided so as to be able to communicate with the system controller 12 in order to perform processing such as sub-codes. The signal amplified by the RF amplifier 2 is demodulated and converted into digital information, and signal processing such as error correction is performed. Transfer to controller 4.

The memory controller 4 temporarily stores the digital information transferred from the encoder / decoder signal processing circuit 3 in the shock-proof memory 5 and stores the digital information in the order in which the digital information is written in the shock-proof memory 5. The writing and reading operations of the voice data and character data in the shock proof memory 5 are controlled in accordance with instructions from the system controller 12 so that the data is read out by the decompression / compression circuit 6.

The data expansion / compression circuit 6 expands the audio data transferred from the memory controller 4 on the time axis in accordance with a predetermined format and compresses the data, and transfers it to the D / A converter 7a, where the digital signal is converted. The signal is converted into an analog signal and output from an audio output terminal 18 as audio output means to which a device such as a speaker is connected.

Next, the magneto-optical disk 21 used in the magneto-optical disk device having the above configuration will be described. As shown in FIG. 2, the magneto-optical disk 21 has a lead-in area in which a disk control signal and the like are recorded in order from the inner periphery to the outer periphery, and a plurality of data groups in which the user has recorded. A user TOC area as an area for writing information about the data, a program area for recording a plurality of individually completed data groups, and a lead-out area for recording disk control signals and the like. Then, a recording area is formed by the user TOC area and the program area.

The program area has a data area in the format shown in FIGS. 3A and 3B, and records a plurality of individually completed data groups, for example, a plurality of characters and voice programs. . The program area is
As shown in FIG. 3A, data is constituted by a minimum unit called a sector.
1 and so on, and each sector is composed of
They are numbered N, N + 1, N + 2.

The recording area of each data is composed of an integral number of recording minimum units. The minimum unit of this recording is called a cluster, and the cluster is composed of several sectors as shown in FIG. 3B, and each cluster is numbered M, M + 1, M + 2.

In the user TOC area, a data area is formed in the format shown in FIG. 4, and a plurality of individually completed data groups, for example, a plurality of characters and a reproduction order of audio programs are recorded. I have. In the above TOC area, map numbers (0, 1, 2,...) Are arranged in the order of each area constituting the user TOC area starting from the inner circumference side.
.) Are assigned, and areas other than the area assigned with map number 0 are rewritable. And
In the figure, in an area to which a map number L (where L is a natural number) is assigned, the number of songs TNO indicating the total number of music songs as audio data recorded on the magneto-optical disk 21 is recorded. In this example, since the number of music pieces is 5, 5 is recorded. In the area to which the map L + 1 is assigned, address data RA indicating the map number of the program recordable area in the program area
1 is recorded, and in this example, N + 10 is recorded.

In the area to which map numbers M to M + 4 (where M is defined as a natural number) are assigned, a play track number (hereinafter referred to as a PNO) indicating a map number in which address data of each music piece is written. (PNO1
To PNO5)), and in this example, each play track number includes N, N + 2, N + 4, N + 6,
N + 8 is recorded.

Further, map numbers N to N + 9 (where N
Is defined as a natural number), a value indicating the first address and the last address of the song position of each song and an identification code indicating whether each program is a character or an audio program are written Have been. Here, the above identification code is set to 1 for voice data and to 0 for character data. In the example of FIG. 4, the (Start address, End address) of the first tune is (0, 9) and the identification code is 1, so it is audio data.
Tracks 5 and 5 are (10, 19) (0), (2
0, 29) (1), (30, 39) (1), (40, 4)
9) (1) is recorded. Also, the map number N + 1
In the area to which 0 is assigned, values indicating the first address and the last address of the recordable area RA1 are recorded. In this example, (50, 999) is recorded.

When the magneto-optical disk 21 written in the above-mentioned format is used, the magneto-optical disk drive uses, for example, the play track number PN by the optical pickup 1.
After reading O1, the address data of the map number N and the identification code are read. The process moves to the start address (here, 0) of the address data, starts reproduction of the first music, and reproduces up to the end address (here, 9). Here, since the identification code of the track with the play track number PNO1 is 1, the data identification device 12a identifies that the audio program is recorded, and outputs it from a speaker or the like. Subsequently, the play track number PNO2 is read, and the reproduction of the second music is similarly performed. At this time, since the identification code of the play track number PNO2 is 0, it is identified by the data identification device 12a that a character is recorded, and is output to the display device 17 such as a liquid crystal display. When reproduction is performed to the end address of the fifth music piece (here, 49), the magneto-optical disk 2
1 is terminated.

The operation of the data discriminating device 12a when writing data on a disk as shown in the format of FIG. 4 in this magneto-optical disk device will be described with reference to the flowchart of FIG.

First, the play track number (PNO)
Is initialized to 0 (S1). Next, the start address of PNO = 0 is set to 0 (S2).

Then, it is determined whether the input data is voice data or character data (S3). Here, when the input data is audio data, the process proceeds to S5, where an identification code 1 indicating that the input data is audio data is set.

On the other hand, if the input data is not voice data in S3, an identification code 0 indicating that the input data is character data is set (S4).

Next, the recording operation of the input data is performed (S
6). Then, it is monitored at regular intervals whether there is an interruption due to the editing operation (S7). Note that the editing operation here is a PNO update operation, character data input from the key input device 16a or the character recognition device 16b, a recording end operation, or the like. If there is no interruption due to the editing operation, S
The process proceeds to step 6 to continue the recording operation.

If it is determined in S7 that the editing operation is interrupted, the end address of the previous PNO is updated (S8).

Next, it is determined whether or not a recording end operation has been performed as an editing operation in S7 (S9). If there is a recording end operation, END to end all operations
Move to

If it is determined in S9 that there is no recording end operation, the PNO is updated (S10) and the new PN is updated.
The start address of O is set (S11). And
After finishing the process in S11, the process proceeds to S3.

The above is an outline of the processing of the data identification device 12a for identifying data input to the magneto-optical disk device of the present invention, generating an identification code, and writing the identification code on the disk.

Next, a description will be given of FIG. 6 which is an example of a timing chart when data is recorded at an audio break during recording of an audio signal.

FIG. 6A shows a program time, in which a sound is inputted from time T0 and the magneto-optical disk 2
It shall be recorded in 1. FIG. 6B shows audio data input from the first audio input terminal 19a, and shows that the time from T1 to T2 is a period in which the conversation is interrupted and no sound is produced. FIG. 6C shows an input by a microphone of another system connected to a second audio input terminal 19b of another system different from the microphone connected to the audio input terminal 19a, or a key input device 16a or a character recognition device 16b. Symbol data.

Therefore, the first audio input terminal 19
If there is a silent region when recording the audio data input from a, the switch 19c switches from the first audio input terminal 19a to the second audio input terminal 19b,
The input voice data from the second voice input terminal 19b, or the key input device 16a or the character recognition device 16b
Can be recorded in the silent area of the disk 21 as data from which the recorded contents and the like can be recognized.

That is, the voice data input from the second voice input terminal 19b, which is different from the first voice input terminal 19a, or the input symbol character data from the key input device 16a or the character recognition device 16b is transmitted at time T1. From time to time T2, a break between conversations is used, and during reproduction, data is input as easy data for recognizing the contents of the broken conversation.

FIG. 6D is a conceptual diagram in which the input data shown in FIGS. 6B and 6C is recorded on the disk 21. TNO is the track number (Track Num)
ber), and TNO0, TNO1, and TNO2 represent track number 0, track number 1, and track number 2, respectively.

In FIG. 6C, TNO0 or TNO
NO2 the contents such as if by entering the data you'll table in TNO1, TNO0 or TN in addition to playing the TNO1
The contents of O2 can be confirmed.

According to the magneto-optical disk drive having the above structure,
When the sound input from the first sound input terminal 19a is in a silent state, another sound can be inserted from the second sound input terminal 19b of another system.

As a result, when audio is being recorded,
By utilizing the silent state, it is possible to record on the magneto-optical disk 21 audio data having a speaker whose recording is to be performed and contents to be confirmed during recording.

Therefore, the recorded contents and the talker recorded as described above can be searched easily and quickly, so that the operability of the apparatus can be improved.

The data identification device 12a for identifying whether the data being reproduced is audio data or character data.
Is provided, the character data can be used as the data for confirming the contents. As a result, the data editing operability can be improved.

Therefore, desired data can be searched quickly, so that the operability of the apparatus can be improved.

Further, since the handwritten character recognition device 16b is provided as the recorded character input means, handwritten character data input from a pen or the like can be used, and input by handwritten characters becomes possible. This makes it possible to easily input a symbol character even if a break in input data is short.

[0079]

According to the first aspect of the present invention, there is provided an information recording / reproducing apparatus.
As described above, at the time of recording, the analog data input from the first data input means is converted into digital data, this digital data is recorded on a recording medium, and at the time of reproduction, the digital data recorded on the recording medium is converted to analog data. In an information recording / reproducing apparatus for converting data into data and outputting the data from a data output means, when data is recorded by the first data input means, another system of second data input means is provided for inputting another data to a break portion of the input data. is the previous data and interrupted after the partial data from the interrupted portion of the input data by the first data input means, and the input to the interrupted portion by the second data input means data Noso
Address data indicating the address on each recording medium
It is configured to record on a recording medium .

Thus, when the data recorded as described above is reproduced from the recording medium, the data input from the first data input means as the main recording data is converted to the second data.
It can be easily confirmed by the data input from the data input means. Further, if the data from the second data input means is recorded as information data indicating the content of the data input from the first data input means, the content of the recorded data can be easily confirmed at the time of reproduction. Can be.

Therefore, the desired data can be quickly searched, and the operability of the apparatus can be improved.

In the information recording / reproducing apparatus according to the second aspect of the present invention, as described above, the first data input means comprises the audio input means for inputting audio data. The second data input means comprises voice input means for inputting voice data or symbol / character input means for inputting symbol / character data, and further comprises data identification for identifying voice data and symbol / character data recorded on a recording medium. This is a configuration in which means are provided.

According to the present invention, in addition to the effect of the first aspect, data of a content that allows the user to confirm the voice being recorded, such as the speaker of the voice being recorded and the content being recorded, can be inserted by the voice input means of another system. Becomes possible. In addition, symbol character data can be used as insertion data by using symbol character input means instead of the above-mentioned separate system of voice input means.

Therefore, at the time of reproduction, the contents of the recorded data can be easily confirmed by the symbol character data, so that the operability of data editing can be improved.

In the information recording / reproducing apparatus according to the third aspect of the present invention, as described above, in the information recording / reproducing apparatus according to the first aspect, the handwritten character for recognizing the handwritten character and converting the character code is input to the symbol / character input means. This is a configuration in which recognition means is provided.

Thus, in addition to the effect of the second aspect, since the handwritten character input means is provided as the recorded character input means, it is possible to input characters by handwriting.

Therefore, there is an effect that a symbol character can be easily input even if a break of input data is short.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a magneto-optical disk device as an information recording / reproducing device according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of each area formed on a magneto-optical disk used in the above-described magneto-optical disk device.

FIG. 3 shows a program area of the magneto-optical disk, wherein FIG. 3 (a) is an explanatory diagram of each sector, and FIG. 3 (b) is an explanatory diagram of each cluster.

FIG. 4 is an explanatory diagram of a user TOC area of the magneto-optical disk.

FIG. 5 is a flowchart showing a data identification procedure in the data identification device provided in the magneto-optical disk device of FIG.

6 shows an example of a time change of data recorded on a magneto-optical disk of the magneto-optical disk device of FIG. 1, wherein FIG. 6 (a) shows a program time, and FIG. FIG. 2C shows audio data input from the first audio input terminal, FIG. 2C shows audio data input from the second audio input terminal, and FIG. 2D shows FIGS. 2B and 2C. 4 is an explanatory diagram showing recording tracks on the magneto-optical disk of the input data shown in FIG.

[Explanation of symbols]

 12a Data identification device (data identification means) 16 Input device (symbol / character input means) 16b Handwritten character input device (handwritten character input means) 18 Voice output terminal (voice output means) 19a First voice input terminal (voice input means) 19b Second audio input terminal (audio input means) 21 magneto-optical disk (recording medium)

Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G11B 27/02-27/26 G11B 27/31-27/34 G11B 20/10 G11B 27/10 G11B 27/28

Claims (3)

(57) [Claims] At the time of recording, analog data input from a first data input means is converted into digital data, this digital data is recorded on a recording medium, and at the time of reproduction, the digital data recorded on the recording medium is converted into analog data. An information recording / reproducing apparatus for converting data into data and outputting the data from a data output means, wherein at the time of data recording by the first data input means, a second system of another system for inputting another data to a break in the input data.
Data input means is provided, said the previous data and interrupted after the partial data from the interrupted portion of the input data by the first data input means, each of the data inputted to the interrupted portion by said second data input means Address indicating the address on the recording medium
An information recording / reproducing apparatus characterized in that dress data is recorded on a recording medium . The first data input means comprises voice input means for inputting voice data, and the second data input means comprises voice input means for inputting voice data or symbol character input for inputting symbol character data. 2. The information recording / reproducing apparatus according to claim 1, comprising input means, and further provided with data identification means for identifying voice data and symbol character data recorded on said recording medium. 3. The information recording / reproducing apparatus according to claim 2, wherein said symbol / character input means is provided with handwritten character recognition means for recognizing handwritten characters and converting character codes.