JPH11283330A - Data recording system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data recording system capable of continuously recording without damaging the data during the exchange of a recording medium even in the case the exchange of the recording medium is required in the process of the data recording operation. SOLUTION: The audio data inputted from input terminals 10A, 10B are transmitted to a data recorder 18 through an audio data processor 20 and a temporary storage device 16 and gradually recorded on a recording disk 30. When the recording disk 30 comes to the end of the disk in the process of recording the audio data on this recording disk 30, the recording operation to the recording disk 30 is interrupted, while the data accumulation to the temporary storage device 16 is continued. Then, by means of exchanging the recording disk 30 within the specified time, the audio data in the process of the exchanging operation are recorded on the newly installed recording disk 30 so as to execute the sound recording operation without omission.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording system for inputting predetermined data and recording the data on a predetermined recording medium.

[0002]

2. Description of the Related Art Conventionally, various data recording systems for transferring and recording data between different recording media or a common recording medium have been provided. For example, a recording / reproducing apparatus that reproduces audio and other data recorded on a recording disk and records the data on another recording disk has become widespread. In addition, recording / reproducing apparatuses for inputting data from a TV receiver or a video camera and recording the data on a recording disk or the like have become widespread.

[0003]

By the way, in data reproduction and recording operations using such a recording medium, data reproduction and recording are basically performed by continuous operations in many cases. For this reason, during the reproduction of the recording medium on the reproducing side, if the data on the recording medium on the recording side becomes full and it becomes necessary to replace the recording medium on the recording side, the data being exchanged cannot be recorded. There is a problem that recording cannot be completed, resulting in incomplete data recording.

Accordingly, an object of the present invention is to provide a data recording system capable of performing continuous recording without losing data during the exchange, even if the recording medium needs to be exchanged during data recording. Is to provide.

[0005]

In order to achieve the above object, the present invention provides a data input device for inputting predetermined data,
A temporary storage device that temporarily stores input data from the data input device, a mounting device that replaceably mounts a predetermined recording medium, and a data storage device that stores data stored in the temporary storage device in a recording medium mounted in the mounting device. A data recording device to be written, and, when an exchange operation of a recording medium in the mounting device is detected during data input from the data input device, data input from the data input device during the exchange is stored in the temporary storage device. And control means for starting writing to the new recording medium from the exchanged data stored in the temporary storage device when the new recording medium is mounted. Features.

In the data recording system according to the present invention, data input from the data input device is temporarily stored in a temporary storage device, and then sequentially output to the data storage device and written to a recording medium mounted on the mounting device. To go. Then, when the recording area of the recording medium becomes full and the data writing operation cannot be continued, the data writing operation by the data storage device is interrupted at that point. Then, the data that is continuously input from the data input device after the interruption is sequentially accumulated in the temporary storage device,
Wait for the replacement of the recording medium.

Here, when the exchange of the recording medium is detected,
After the interruption, the data recording on the new recording medium is restarted from the data stored in the temporary storage device. Thus, data from the data input device can be continuously recorded on a plurality of recording media without a break. In addition, when a certain period of time elapses or the storage capacity of the temporary storage device becomes full without detecting the exchange of the recording medium, the data stored in the temporary storage device is cleared, and the fact is displayed. I do.
Thereafter, when a new recording medium is mounted, the recording is performed in a state where the data being exchanged is missing as in the conventional case.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a data recording system according to the present invention will be described below. FIG. 1 is a block diagram showing a configuration example of a data recording system according to the present invention. The data recording system of the present embodiment records audio data input from a digital input terminal 10A or an analog input terminal 10B from an external processing device (not shown) on a recording disk.

The A / D converter 12 converts analog data input from the analog input terminal 10B into digital data. The switch 14 includes input data from the digital input terminal 10A and the analog input terminal 1A.
In this case, data inputted from AB through the A / D converter 12 is selected and input to the audio data processing device 20. The audio data processing device 20 processes the input audio data, and controls an audio compression unit 22 that compresses the audio data and an operation of storing and reading the audio data in the temporary storage device 16. Storage control unit 2
4 and a data processing unit 26 for converting data read from the temporary storage device 16 into data for recording.

The temporary storage device 16 is composed of, for example, a DRAM, and temporarily stores the audio data output from the audio compression unit 22. In this example, it is assumed that the storage capacity is 16 Mbit or more. The temporary storage device 16 is used as a work area when performing a process of compressing audio data by the audio compression unit 22, or when the data recording system is used in a portable manner, stores data for enhancing earthquake resistance. For this purpose, this type of data recording system is conventionally provided. Therefore, this embodiment can be implemented without providing a new storage device, and can be realized at low cost.

The data recording device 18 includes a recording disk 30.
And a disk mounting device for exchangeably mounting audio data on the recording disk 30. The data recording device 18 is provided with a sensor for detecting the presence or absence of the recording disk 30 in the disk mounting device, and a sensor (both not shown) for detecting the open / close state of a disk replacement opening / closing lid. A signal is output to the microcontroller 40 from the signal line 18A.

The microcontroller 40 controls the entire system. The microcontroller 40 monitors the exchange state of the recording disk 30 via the above-mentioned signal line 18A, and inputs a key (REC switch 46) from an operation unit (not shown). , STO
The P switch 48 and the like are monitored by the signal lines 28A and 28B. In addition, the display device 42 performs various displays.
Although it is a CD display or the like, particularly in this example, it displays various messages relating to replacement of the recording disk 30 during recording.

Although the configuration shown in FIG. 1 mainly shows a recording system, the data recording system of the present embodiment has a function of reproducing audio data recorded on the recording disk 30. That is, the data recording device 18 includes a data reproducing device (not shown) for reproducing the audio data recorded on the recording disk 30, and the data reproduced from the recording disk 30 under the control of the microcontroller 40. Is input to the audio processing device 20, and is reproduced as audio data via the temporary storage device 16. The reproduced audio data is output from an output device such as a speaker (not shown).

In the data recording system of this embodiment, audio data input from the input terminals 10A and 10B is sent to the data recording device 18 via the audio data processing device 20 and the temporary storage device 16, and is recorded on the recording disk 30. . Then, when the recording disk 30 reaches the disk end while recording the audio data on the recording disk 30, the recording disk 30 is replaced within a certain period of time, so that the audio data being replaced is newly mounted. Recording disk 30
To record without any missing parts. Hereinafter, such a recording operation without omission is referred to as seamless recording.

FIG. 2 is an explanatory diagram showing an outline of the operation of the seamless recording of this embodiment. FIG. 2 (A) shows an outline of an operation mainly at the time of recording, and FIG. 2 (B) mainly shows an operation at the time of reproduction. An overview is shown. For example, in the case of recording "Aioka Okukku Kokusetsusetsusetsuto" as a recording source, it is assumed that during recording on the disc 1, this disc 1 becomes a disc end and recording is stopped. Note that this disc end-stop (end information) is based on table of contents information (TOC: Table Of Cont) recorded in the disc 1 in advance.
ents).

When the disk 1 has reached the disk end-stop, a new disk needs to be replaced. In this case, conventionally, the sound during disc replacement is lost. However, in this example, the storage of the audio data in the temporary storage device 16 is continued until the new disk 2 is replaced, and when the new disk 2 is mounted, the audio data stored during the disk replacement is It is possible to record on the new disk 2 and record the audio data during the disk exchange without any loss.

In the example shown in FIG. 2, at the point when "Aioe" is recorded on the disk 1, the disk 1
It has been stopped. Therefore, the disk is exchanged. During this time, the subsequent “Kikikokeshi ...” is sequentially accumulated in the temporary storage device 16. After the completion of the disk replacement, the temporary storage device 16
In the order in which they are stored.

When the two discs 1 and 2 recorded in this way are played on a reproducing apparatus, as shown in FIG. 2 (B), the audio data up to "AIUEO" is reproduced from the disc 1 and the disc 2 is reproduced. From "Kakiku Kokeshi ...
.. "Is reproduced, and data recording without omission can be performed.

FIG. 3 is an explanatory diagram showing the operation when the above-described seamless recording is performed, in slightly more detail.
(A) is a display operation of the display device 42, FIG.
3 shows the operation of the recording disk 30, and FIG. 3C shows the state of data storage in the temporary storage device (DRAM) 16. As shown, “recording” is displayed on the display device 42 during recording on the recording disk 30. Then, when the disk end of the recording disk 30 is detected at the time * 1, “TOC EDIT” processing is performed, and “disk end-stop” is displayed on the display device 42.

Thereafter, the recording disk 30 is set to "STOP"
, And waits for the user to exchange disks while seeing the display of "disk end-stop". However, even in this state, the accumulation of data in the temporary storage device (DRAM) 16 is continued. Therefore, the DR shown in FIG.
The AM remaining amount gradually decreases. Thereafter, when the disc is exchanged and the REC switch 46 is turned on, "recording" is again displayed on the display device 42, and a new recording disc 3 is displayed.
After accessing “0” and performing “TOCREAD” processing,
Resume recording. At the time of this resumption, the data stored in the temporary storage device 16 after the time * 1 is sequentially recorded on a new recording disk 30. At this time, "seamless" is displayed on the display device 42 for two seconds to notify the user that seamless recording has been performed. After this, DR
The AM remaining amount gradually increases.

FIG. 4 is an explanatory diagram showing the operation in the case where seamless recording cannot be performed, in somewhat more detail.
4A shows a display operation on the display device 42, FIG. 4B shows an operation of the recording disk 30, and FIG. 4C shows a data accumulation state in the temporary storage device (DRAM) 16. As shown in the figure, when the disk end information of the recording disk 30 is detected from the state during recording, “TOC EDIT” is displayed.
The processing is performed, "DISK END-STOP" is displayed on the display device 42, and although the recording disk 30 is in the "STOP" state, the disk is not replaced and
When the RAM runs out, the temporary storage device 16 is cleared and new data is stored for reproduction (pre-
fetch). And after this, the disk was replaced,
When the REC switch 46 is turned on, "recording" is again displayed on the display device 42, a new recording disk 30 is accessed, and after "TOC READ" is detected, recording is resumed. In this case, data loss occurs during disk replacement.

In this embodiment, the seamless recording is abandoned when the remaining amount of the DRAM is exhausted. Alternatively, the recording may be controlled by time.
Further, the seamless recording operation as described above is limited to the case where the recording area of the first recording disk 30 is completed.
The same operation can be performed when the operation of the TOP switch 48 occurs during recording.

In the case of performing the seamless recording as described above, it takes a long time for reproduction immediately after the recording. That is, conventionally, after the “TOC EDIT” process is completed,
Since the temporary storage device 16 is immediately cleared and new data for reproduction is stored (pre-fetch), a sound can be immediately output. However, when performing seamless recording as in this example, " Even after the end of the “TOC EDIT” processing, the audio data continues to be stored until the temporary storage device 16 becomes full. Therefore, if the reproduction is performed during that time, it takes time until the reproduction sound comes out to take in the reproduction sound from there. That would be.

When the two recording disks 30 that have been seamlessly recorded are reproduced and output from a speaker as described above, if the two recording disks 30 are sequentially mounted and reproduced, during the replacement operation, , The playback sound stops. Therefore, at the time of this reproduction, the first recording disk 3
From 0 to the temporary storage device 16, a data amount larger than the output amount of the speaker is transmitted in advance, and the data amount is sequentially output to the speaker, so that it is possible to exchange the next recording disk 30 during the operation. It is possible to prevent the sound from being cut off.

In the above example, a configuration for mainly processing audio data has been described. However, the present invention can also be applied to a system for recording video data, image data, and character string data. is there. However, depending on the type of data, in the case of a large data amount such as video data, a large-capacity temporary storage device is required in order to obtain a sufficient recording medium exchange time.
In this case, as the data output device, for example, a CRT, a printer, or the like can be applied depending on the type of data to be processed.

Further, the disk type as described above is not limited to the type using a recording medium, but may be a type using a card type recording medium or a tape type recording medium. Further, the data recording method may be a magnetic recording medium or an optical recording medium.

[0027]

As described above, according to the data recording system of the present invention, when an exchange operation of the recording medium is detected during data input from the data input device, the data is input from the data input device during the exchange. Data is stored in a temporary storage device, and when a new recording medium is mounted, writing to the new recording medium is started from data being exchanged stored in the temporary storage device. . Therefore, even if the recording medium is replaced during recording, data can be recorded without missing. Therefore, it is possible to provide a recording system that is extremely advantageous for recording or recording a conference or various events.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration example of a data recording system according to the present invention.

FIG. 2 is an explanatory diagram showing an outline of an operation of seamless recording in the data recording system shown in FIG.

FIG. 3 is an explanatory diagram showing an operation in a case where seamless recording is performed by the data recording system shown in FIG. 1 in somewhat more detail;

FIG. 4 is an explanatory diagram showing an operation in a case where seamless recording cannot be performed by the data recording system shown in FIG. 1 in somewhat more detail;

[Explanation of symbols]

10A, 10B ... input terminal, 12 ... A / D converter, 14 ... switch, 16 ... temporary storage device, 18 ...
... data recording device, 20 ... audio data processing device, 22
... Voice compression unit, 24 storage control unit, 26 data processing unit, 30 recording disk, 40 microcontroller, 42 display device, 46 REC switch, 48 STOP switch.

Claims (18)

[Claims] A data input device for inputting predetermined data; a temporary storage device for temporarily storing input data from the data input device; a mounting device for interchangeably mounting a predetermined recording medium; and the temporary storage device. A data recording device that writes data stored in the mounting device to a recording medium mounted on the mounting device; and, when an operation of replacing the recording medium in the mounting device is detected during data input from the data input device, the data exchange is performed. During this time, data input from the data input device is stored in the temporary storage device, and when a new recording medium is inserted, the new data is stored in the temporary storage device and the new data is replaced. And a control means for starting writing to a simple recording medium. 2. A data reproducing device for reproducing data from a recording medium mounted on the mounting device and transmitting the reproduced data to the temporary storage means, and a data reproducing device for reproducing the data by the data reproducing device, A data output device for outputting the stored reproduction data, wherein the data reproduction device sends the data amount larger than the data output amount in the data output device to the temporary storage device in advance, whereby the The data stored in the temporary storage device can be continuously output even when the recording medium is exchanged in the mounting device during reproduction of the data reproduction device. Item 2. The data recording system according to Item 1. 3. The data recording system according to claim 1, wherein said temporary storage device is provided for compressing and / or expanding data. 4. The data recording apparatus according to claim 1, wherein the data input device reproduces and inputs data recorded on a recording medium of the same type or a different type as the recording medium. system. 5. The data recording system according to claim 1, wherein said data input device inputs data from an external data processing device. 6. The control means detects that the recording area of the recording medium has ended by detecting end information pre-recorded on the recording medium during recording on the recording medium, At this end detection timing, the output of data from the temporary storage device to the data recording device is interrupted,
2. The data recording system according to claim 1, wherein writing to the new recording medium is started from data after the end detection timing. 7. The control unit detects a key input for instructing the start of a recording operation, and then detects start information pre-recorded on the new recording medium, thereby loading the new recording medium. 7. The data recording system according to claim 6, wherein data writing is started upon detecting that the data recording has been performed. 8. The method according to claim 7, wherein the control unit clears the information stored in the temporary storage device when a predetermined time has elapsed without detecting the installation of the new recording medium. Data recording system. 9. The method according to claim 1, wherein the control unit clears the storage information of the temporary storage device when the storage area of the temporary storage device becomes full without detecting the installation of the new recording medium. The data recording system according to claim 7, wherein 10. The control means detects the mounting of the new recording medium and starts writing from the exchanged data stored in the temporary storage device to the new recording medium. 2. The data recording system according to claim 1, wherein said fact is displayed on a display means. 11. The data recording system according to claim 1, wherein said predetermined data is audio data. 12. The data recording system according to claim 1, wherein said predetermined data is video data. 13. The data recording system according to claim 1, wherein the predetermined data is image data or character string data. 14. The data recording system according to claim 1, wherein said predetermined recording medium is a disk-type recording medium. 15. The data recording system according to claim 1, wherein the predetermined recording medium is a card-type recording medium. 16. The data recording system according to claim 1, wherein said predetermined recording medium is a tape-type recording medium. 17. The data recording system according to claim 1, wherein said predetermined recording medium is a magnetic recording medium. 18. The data recording system according to claim 1, wherein said predetermined recording medium is an optical recording medium.