JPH0395769A - Recording system - Google Patents

Abstract

PURPOSE:To enable suitable reproducing and recording by counting the number of times of the error rate of data until it exceeds a threshold value determined in advance for each piece of music, trying the recording of this piece of music again until this number of times reaches a set value and continuing the recording while skipping the recording of this piece of music when the number of times reaches this value. CONSTITUTION:This system is provided with an error rate monitoring means D which monitors an error rate ER of digital data reproduced from a first recording medium and generates an error signal when this error rate exceeds a determined threshold value Ke, and an error counting means N which counts a number (n) of times to generate this error signal. When the number (n) of times to generate the error signal is smaller than a value Kn determined in advance while recording one piece of music to a second recording medium, the reproducing of the first recording medium and the recording to the second recording medium are interrupted and the reproducing and recording are restarted after returning to the initial reproducing position of the first recording medium and to the initial recording position of the second recording medium of the music under recording. Thus, rerecording can be appropriately and automatically executed.

Description

[Detailed Description of the Invention] [Summary] When digital data played back by a digital data playback device is recorded by a digital recording device, noise and distortion may occur due to vibrations of the playback device, dirt on the recording medium on the playback side, etc. In order to prevent a song from being recorded, the number of times the error rate of the sold data exceeds a predetermined value is counted for each song, and the number of times this song is recorded is not recorded until this number reaches the preset value. I tried recording again, and when this value was reached, I skipped recording this song and continued recording from the next song.

[Industrial application field]

Digital data played by a digital data playback device such as a compact disc player (hereinafter referred to as CD) is transferred to a digital audio tape recorder (hereinafter referred to as CD).
The present invention relates to a recording method for recording with a digital recording device such as a DAT (hereinafter referred to as DAT).

[Conventional technology]

Audio sets that combine CDs and DATs, or in-vehicle or portable recording and reproducing devices that integrate these are used.

When recording audio as digital data like on this CD, a code that allows error correction is used.
In order to correctly reproduce the recorded digital data by correcting errors that occur when reading from the recording medium, error correction processing is performed on the digital data read from the recording medium such as a CD.

However, if there is vibration when reading digital data from a CD or the like, the optical pick assembly that reads digital data from the recording medium may skip, which increases the error rate. Furthermore, the error rate also increases due to dirt on the CD.

If recording continues under such conditions, the number of errors will increase beyond the limit that allows error correction, and error correction will become impossible, resulting in the recording of noise or distorted sound.

[Problem to be solved by the invention]

If you use a recording device to record music played back from digital data with a high error rate, you may end up with a DAT tape that has a lot of noise and distortion and is unlistenable. Alternatively, you had to rewind the tape to the beginning of the song you were recording and try recording the same song again, or start recording from the next song.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording system that can automatically perform re-recording when continuously output digital data has many errors, or automatically skip recording of songs that have many errors.

[Means to solve the problem]

As shown in the principle diagram of FIG.
In the recording method 2, in which the digital data reproduced from the digital data recorded on the recording medium is recorded on the second recording medium by the recording device R, the error rate ER of the digital data reproduced from the first recording medium is monitored. and an error rate monitoring means D that generates an error signal when this error rate exceeds a predetermined threshold value Ke, and an error counting means N that counts the number of times n of occurrence of this error signal, and a second recording medium. If the number of occurrences of the error signal n is less than a predetermined value Kn during the recording of one song, the reproduction of the first recording medium and the recording of the second recording medium are interrupted, and the first recording The playback position of the medium and the recording position of the second recording medium are returned to the beginning of the song that was being recorded before playback and recording are resumed.
When the number of occurrences n of this error signal becomes equal to or larger than a predetermined value while recording one song on the recording medium, the first recording medium is played back and the second recording medium is played back. Interrupt recording, move the playback position of the i-th recording medium to the beginning of the next song, return the recording position of the second recording medium to the beginning of the song that was being recorded, and then resume playback and recording. The control means C or the like controls the operation.

[For production]

FIGS. 2(a) and 2(bl) are diagrams for explaining the operation of the recording method according to the present invention, in which the horizontal axis indicates the playback device P.
and corresponds to the position in the length direction of the recording band on the recording medium in the recording device R, and the case where a CD player is used as the playback device P and a DAT recorder is used as the recording device R in FIG. 1 is shown as an example. There is. Note that the numbers in the figure indicate the numbers of the songs played and recorded.

The CD player, which is the playback device P in FIG. 1, is shown in FIG.
, (As shown in (1) of BL, playback is performed from a digital data recording medium such as a compact disk, and fat
, (b) As shown in (2) of the figure, the recording device R of Fig.
A DAT recorder corresponding to fat. In (b) #1
~ Song #3 has a low error rate for each song <, (al, f
As shown in the recording result in (3) of the BL figure, the playback is normal.
It is shown as being recorded.

When the error rate monitoring means D detects that the error rate ER of the digital data continuously output from the recording medium becomes equal to or higher than the predetermined error rate Ke while the CD player is playing the song #4, the CD player and the DAT recorder Both are stopped, and the number of errors n in which the error rate ER exceeds a predetermined error rate Ke is compared with a set value Kn.

The case where the number of errors n is less than the set value Kn is shown in FIG. 2 (al), and the case where the number of errors n is equal to or greater than the set value Kn is shown in FIG. 2 (b).

If the number of errors n is less than the set value Kn, "1" is added to the number of errors n, and both the CD player and DAT recorder are returned to the beginning of song #4 as shown in Figure 2 (al). After that, playback by the CD player and recording by the DAT recorder are restarted, but if the error rate ER does not exceed the predetermined error rate Ke this time due to, for example, no vibration in the CD player, playback and recording will continue smoothly. (3 in the al figure)
), there are #1 to #1 on the recording medium of the DAT recorder.
Song #4 and song #5 following this #4 are recorded.

In addition, after restarting the above playback/recording, the error message appears again.
When 1-ER exceeds a predetermined error rate Ke, the above operation is repeated if the number of errors n is below the set value Kn.

If the number of errors n is equal to the set value Kn or becomes larger than it for some reason, then C
The D player performs cueing so that playback starts from the beginning of the next song, that is, song #5, as shown in (1) in t'bl of Fig. 2, and the DAT recorder performs cueing as shown in Fig. 2, Fbl. As shown in (3) of the Fbl diagram, the recording position is returned to the beginning position of the song #4 that was being recorded and playback/recording is resumed. Followed by#
Since this is performed for song No. 5, song No. 4, which has many consecutive errors, is skipped without being recorded on the recording medium.

〔Example〕

FIG. 3 is a flowchart showing an embodiment of the present invention, and when playback/recording is started, the number of errors n
is reset to "O", and checks whether playback/recording is being executed using Stereo Control (2). If playback/recording has been completed, the recording process is terminated.

If playback/recording is being executed, check the error rate ER of the digital data being played back using the Stereo Press ■, and if this error rate ER is smaller than the predetermined error rate Ke, move to the Stereo Press ■ and continue playback/recording. However, this error rate ER is equal to the predetermined error rate Ke.
If the size is larger, the CD player and D
Stop the AT recorder.

In the following step ■, the number of errors n is set to a predetermined value K.
n, and if n≧Kn, that is, if n<Kn, the number of errors is n6 in Stesop @, after performing the process as explained in FIG. 2 (a) in Steps 1'' is added, and if n≧Kn, the process as previously explained in FIG.

When the process in step ■ or [phase] is completed, playback/recording is resumed in step O, and the process moves to step step ■ to continue playing/recording, but in the next step step ■, the song that is being played or recorded is The playback that was executed in step ■
Determine whether the song is the same as the recording.

This is because as a result of the processing in STESOB ■, @l, the song next to the song being played/recorded in step ■ may be played/recorded in step ■ above, and the present invention Since processing is performed based on This is because it is necessary to reset.

Therefore, if the song that is being played/recorded in Step ■ in this STEP ■ is different from the song that was being played/recorded in STEP ■, the process returns to the previous step and returns to the number of errors n.
After resetting to "0", the process from step ■ onward is repeated, but if the same song that was being played/recorded in step ■ is being played back or recorded in SteSub ■, Since it is necessary to accumulate the number of errors n for this song, the process returns directly to step (2) without re-centing the number of errors n.

〔Effect of the invention〕

According to the present invention, if there are many errors in the digital data of a song read from a recording medium by a playback device, the song is automatically re-recorded, and even if this re-recording is performed, there are no errors in the digital data. If the number of errors does not decrease, a special effect is achieved in that only the songs with many errors can be automatically skipped and recorded.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the principle of the invention, FIG. 2 is a diagram for explaining the operation of the invention, and FIG. 3 is a flowchart showing the operation of an embodiment of the invention.

Claims (1)

[Claims] In a recording method in which digital data reproduced from digital data recorded on a first recording medium is recorded on a second recording medium, an error rate of digital data reproduced from the first recording medium. An error rate monitoring means for monitoring the ER and generating an error signal when the error rate exceeds a predetermined threshold Ke, and an error counting means for counting the number of times n of occurrence of this error signal are provided, and a second record is provided. If the number of occurrences of the error signal n is less than a predetermined value during recording of one song on the medium, the reproduction of the first recording medium and the recording on the second recording medium are interrupted, and the first recording is stopped. media playback position and second
The recording position of the second recording medium is returned to the beginning of the song that was being recorded before playback and recording is restarted, and the number of times this error signal occurs while recording one song on the second recording medium is n. is equal to or larger than a predetermined value, the playback on the first recording medium and the recording on the second recording medium are interrupted, and the playback position on the first recording medium is changed to the beginning of the next song. The recording method is characterized in that the recording position of the second recording medium is returned to the beginning of the song being recorded, and then playback and recording are restarted.