JP2832327B2 - Dubbing method and dubbing apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD player, a cassette tape, and a DAT (Digital Audio Tape).
And a method of dubbing or dubbing information recorded on the first recording medium on the information reproducing side, such as audio or video, on the second recording medium on the information recording side such as a cassette tape deck. It relates to a dubbing device.

[0002]

2. Description of the Related Art Information on a disc is synchronized with the drive for reproducing a disc as a recording medium of a CD player as an information reproducing side and the recording drive of a cassette tape as a recording medium for a cassette deck as an information recording side. In dubbing recorded on a cassette tape, when the information reproduction of the disc body on the CD player side is completed, the cassette deck side stops or temporarily stops the drive of the cassette deck in synchronization with this.

[0003]

In such dubbing, the CD player side and the cassette deck side operate in synchronism with each other, so that the information on the disc is transferred to the cassette tape while the information is recorded. Although dubbing can be performed, a problem as described with reference to FIG. 3 is pointed out.

In FIGS. 3A, 3B and 3C, a indicates a cassette tape before dubbing on a cassette deck side, b indicates a recording portion of a disc on a CD player side,
"c" indicates a cassette tape after dubbing on the cassette deck side. In (a), the cassette tape a before dubbing is entirely blank and indicates that it is an unrecorded tape, and the state where the information I of the disk b is dubbed is shown as a cassette tape c. However, only the information I of the disc b is recorded on the cassette tape c after the dubbing, and only the unrecorded portion is recorded thereafter, so that there is no problem in reproduction after the dubbing. In (b), the cassette tape a before dubbing has an old recording portion R, but since this recording length is shorter than the recording length of the information I on the disc b, the cassette tape c after dubbing has (a) Therefore, there is no problem in reproduction after dubbing.

In (c), the cassette tape a before dubbing has old recording portions R1 and R2, and the recording length of the old recording portion R1 is longer than the recording length of the information I. Therefore, when the information I of the disk b is dubbed onto the cassette tape a before dubbing, the remaining R1 'of the old recording portion R1 and the other old recording portions are recorded on the cassette tape c after dubbing after the recording portion of the information I. R2 will remain. Therefore, if this is reproduced after dubbing, immediately after the reproduction of the information I, the remaining R
1 'and another old recorded portion R2 are reproduced.

Therefore, such old recording portions R1 ', R1
2 needs to be erased, but conventionally, after dubbing,
After the recording is stopped or paused, it is necessary to perform an erasing operation by setting the cassette deck to the recording mode.
However, in such an erasing operation, the longer the difference between the old recording portion and the dubbing portion, the longer the time required for erasing.

Accordingly, it is an object of the present invention to provide a method for automatically and quickly erasing an old recorded portion after dubbing without any erasing operation.

[0008]

In order to achieve the above object, in the dubbing method according to the first aspect of the present invention, the reproducing drive of the first recording medium on the information reproducing side and the dubbing method on the information recording side are performed. In a dubbing method of recording information on a first recording medium on a second recording medium while synchronizing with recording driving of a second recording medium, the information reproducing side reads information recorded on the first recording medium. When the reproduction is completed, a reproduction end signal is output. After responding to the reproduction end signal, the information recording side detects the presence or absence of the old recording portion on the second recording medium,
When it is detected that there is an old recording portion, the old recording portion is erased, and when it is not detected, the drive control of the second recording medium is performed by fast-forwarding.

In the dubbing apparatus according to a second aspect of the present invention, the information reproducing side reproduces information recorded on the first recording medium and outputs a reproduction end signal in response to the end of the reproduction of the information. And an information recording side for recording a reproduction output from the information reproducing side on the second recording medium in synchronization with the reproduction of the first recording medium and responding to the reproduction end signal. Comprises an old recording part presence / absence detecting means and a recording control means, wherein the old recording part presence / absence detecting means detects the presence / absence of an old recording part on the second recording medium, and the recording control means The second recording medium is set in the erasing mode in response to the detection input indicating that the old recording portion is present from the old recording presence / absence detecting means, and the old recording portion is erased. In response to the input It is characterized by an operation for driving and controlling the second recording medium at rapid and controls to repeat until the end of the second recording medium.

[0010] In the dubbing apparatus according to claim 3 of the present invention, after the recording control means drives the second recording medium in the erasing mode for a predetermined time in response to the reproduction end signal from the information reproducing side, After rewinding the second recording medium for a predetermined time in response to the detection input indicating that the old recording portion from the old recording presence / absence detecting means is present, erasing the second recording medium for a predetermined time longer than the predetermined time The mode is characterized in that an operation of erasing an old recording portion and controlling the drive of the second recording medium by fast-forwarding in response to a detection input indicating that the old recording portion does not exist is repeated until the end of the second recording medium. And

[0011]

According to the first aspect, the information reproducing side outputs a reproduction end signal when the reproduction of the information recorded on the first recording medium is completed, and the information recording side responds to the reproduction end signal. Detects the presence or absence of the old recording portion on the second recording medium, erases the old recording portion when detecting that the old recording portion exists, and drives and controls the second recording medium by fast-forward when not detected. When the reproduction of the information recorded on the first recording medium ends, the dubbing of the second recording medium ends, and after the dubbing, the old recording portion of the second recording medium has the presence or absence. As it is detected,
If there is an old recording part, it is erased, and if there is no old recording part, it is fast-forwarded. Therefore, after dubbing, the second recording medium must be driven at a high speed to the end while the old recording part is being erased. , And the dubbing can be ended quickly.

According to a second aspect of the present invention, when the recording control means on the information recording side responds to the end of the reproduction from the information reproducing side, if the second recording medium has an old recording portion, the second recording medium has the second recording medium.
When the recording medium is set to the erasing mode, the old recording portion is erase-controlled, and when there is no recording medium, the second recording medium is repeatedly driven to the end of the recording medium while being fast-forward-controlled, so that dubbing can be ended quickly. .

According to a third aspect of the present invention, when reproduction from the information reproducing side is completed by the recording control means, the second recording medium is erased for a predetermined time, and when there is an old recording portion, the second recording medium is deleted. After rewinding for a predetermined time, the second recording medium is set to an erasing mode for a predetermined time longer than the predetermined time to erase the old recording portion, and when there is no recording, the second recording medium is fast-forwarded to perform the drive control operation. This is repeated until the end of the recording medium, so that dubbing can be ended quickly and unnecessary old recording portions can be reliably erased from the second recording medium.

[0014]

FIG. 1 is a schematic diagram showing the overall construction of a dubbing apparatus according to an embodiment of the present invention. The apparatus of this embodiment will be described with reference to FIG.
Player 2 and cassette deck 4 as information recording side
And a control means for controlling an operation for dubbing the information recorded on the disc as the first recording medium of the CD player 2 to the cassette tape as the second recording medium of the cassette deck 4. And a controller 6.

The CD player 2 comprises a spindle motor 8,
An optical pickup 10, a servo system 12, and a signal processing circuit 14 are provided. While the disk 16 is driven to rotate by a spindle motor 8, information recorded on the disk 16 is optically read by the optical pickup 10 and the read signal is read. The signal processing circuit 14 performs appropriate signal processing such as amplification, demodulation, and D / A conversion, and then outputs the reproduced information. In this case, the controller 6 gives a control signal to the servo system 12 to perform each control of the spindle servo, the tracking servo, and the focus servo for the spindle motor 8 and the optical pickup 10. Then, under this control, the reproduction information is transferred from the CD player 2 to the cassette deck 4 for dubbing recording. In this case, the signal processing circuit 14 of the CD player 2 supplies the controller 6 with a subcode signal for notifying whether or not the reproduction of the disk 16 has been completed. This subcode signal is a signal recorded together with reproduction information on the disk 16. If the reproduction information is music information composed of, for example, a plurality of music pieces, the reproduction information is recorded on the disk 16 at which position. This is a signal of information such as the song number, cumulative song time, and song time within the song, and when the music song with the last song number is played, the subcode signal indicates the playback corresponding to the end of playback of that song. It is output to the controller 6 as an end signal.

The cassette deck 4 includes a signal processing circuit 18,
A recording head 20, a reproducing head 22, and a cassette tape driving system 24 are provided. The reproduction information from the CD player 2 is subjected to signal processing for dubbing by a signal processing circuit 18, and then, the cassette tape 26 causes the reproduced information to be dubbed. The cassette tape drive system 24 is supplied with a dubbing start control signal, a temporary stop control signal, a control signal of an old recording detection command, and a stop control signal from the controller 6, respectively. The cassette tape drive system 24 controls the driving of the cassette tape 26 in response to these control signals. The detection signal of the old recording portion of the cassette tape 26 is given from the reproduction head 22 to the controller 6.

The controller 6 has a CPU 28 for controlling the CD player 2 and the cassette deck 4 as described above.
And a timer 3 for controlling a recording operation by dubbing
0 is built in.

The operation will be described with reference to the flowchart of FIG. In the description of this operation, it is assumed that the cassette tape 26 of the cassette deck 4 has the old recording portions R1 and R2 as shown in FIG. In this case, the music song I to be recorded by dubbing is recorded as shown in b, and the recording length of the music song I is shorter than the recording length of the first old recording portion R1 of the cassette tape 26. I do.
When the music I of the disk 16 is recorded on the cassette tape 26 as it is, in the prior art, the music C is changed from c to d in the part after the music I is dubbed, as in d in the present embodiment. All old records are erased. Such dubbing will be described below.

The controller 6 supplies a servo system control signal to the servo system 12 of the CD player 2 to drive the disk 16 to play music on the disk 16 and start dubbing to the tape drive system 24 of the cassette deck 4. Outputs each signal. Thus, dubbing starts. Then, in step n1, the controller 6 determines whether or not the tape end detecting means (not shown) from the cassette deck 4 such as the torque acting on the cassette tape 26 or the reflectance of light on the transparent leader tape in the cassette tape 26. It is determined whether or not the end of the cassette tape 26 has been detected by checking whether or not the cassette end detection signal has been supplied from the tape end detecting means using detection of a change.

If it is determined in this determination that the end of the cassette tape 26 has been detected, the controller 6 proceeds to step n2.
Outputs a servo system control signal to the servo system 12 of the CD player 2 to stop the reproducing operation. The CD player 2 stops the rotation of the spindle motor 8 in response to this servo system control signal.
In step 4, a dubbing stop control signal is output to the tape drive system 24 of the cassette deck 4, whereby the driving of the cassette tape 26 is stopped, and the recording by dubbing is completed.

On the other hand, at step n1, the cassette tape 26
Is not at the end, the controller 6 determines in step n5 whether or not the reproduction of the last music number has been completed from the subcode signal from the signal processing circuit 14 of the CD player 2.
That is, at this time t1, the cassette tape 26 initially in the recording state as shown in FIG.
The portion I of the music piece on the disc 16 recorded by dubbing as shown at o to t1, the remaining portion R1 'of the old recorded portion R1 at t1 to t2 of c, and the old recorded portion R2 at t3 to t4. It will be there. Then, the controller 6 outputs a control signal for stopping the reproducing operation to the servo system 12 of the CD player 2 in step n6 at t1 and outputs a control signal for temporarily stopping dubbing to the cassette deck 4 in step n7.

Next, the controller 6 confirms in step n8 that the spindle motor 8 of the CD player 2 has stopped,
In step n9, a control signal for starting dubbing is output to the tape drive system 24 of the cassette deck 4. At this time,
Since the reproduction operation of the CD player 2 is stopped, the remaining recording portion R1 'of the old recording portion R1 of the cassette tape 26 is
Will be erased. In step n9, the controller 6 uses the built-in timer 30 to set this erase time to, for example, 1
Count for seconds. After the one-second count, the controller 6 outputs a control signal for temporarily stopping recording, ie, erasing, to the tape drive system 24 of the cassette deck 4 in step n10, whereby the erasing of the cassette tape 26 is temporarily stopped. You. Next, at step n11, the controller 6 outputs a control signal for driving the cassette tape 26 at a fast-forward for detecting the old recording to the tape drive system 24 of the cassette deck 4, whereby the cassette tape 26 is driven at the fast-forward. The old recorded portion is detected while the operation is being performed. The signal of this detection is given to the controller 6 with the signal detected by the reproducing head 22 from the cassette tape 26 at that time when the reproducing head 22 is in contact with the cassette tape 26.

If it is determined in step n11 that there is no old recording portion, the process proceeds to step n12. In this step n11, the remaining R1 'of the old recording portion R1 is detected on the cassette tape 26. Therefore, the process proceeds to step n13. The controller 6 outputs a control signal for rewinding the cassette tape 26 to the tape drive system 24 of the cassette deck 4.
In this case, the controller 6 counts by the timer 30 for one second from the detection position in the old recording portion R1,
Rewind the cassette tape 26. This is to set the position R1 'of the old recorded portion R1 to a position slightly before the erased position in the above one second so that there is no unerased old recorded portion. After rewinding, the controller 6 returns to step n.
At 14, a recording start control signal is output to the tape drive system 24 of the cassette deck 4, and the old recording portions R1 and R2 of the cassette tape 26 are erased. In this case, the controller 6 counts the erasing time of the old recorded portion for one minute by the same timer 30 as described above. When the old recorded portion of the cassette tape 26 is erased for one minute, the controller 6
Determines in step n15 whether the end of the cassette tape 26 has been reached. If the end of the cassette tape 26 has not been reached, the flow returns to step n10 to repeat the above steps. Proceed to. As a result, if, for example, the remaining portion of the old recording portion R1 is erased in one minute in step n14, but the remaining R1 'of the old recording portion R1 still exists, in step n15, the cassette tape 26 is deleted. Since it is not at the end, the process returns to step n10, and is slightly rewound and erased, so that the remaining R1 'of the old recorded portion R1 does not remain unerased, and the remaining R1' of the old recorded portion R1 does not exist. Between the unrecorded portion and the old recorded portion R2, t
In the case where 2 to t3 is long, the cassette tape 26 is driven at a high speed in the fast-forward mode until the old recording portion R2 is detected in step n11. Further, when the old recording portion R2 is detected at t3, the cassette tape 26 is driven by the high-speed drive so that the old recording portion R2 is detected.
Even if it goes a little too far to the front part of No. 2, it is rewound from the detection position and erased, so that the old recorded part R2 is surely erased and the music song on the disk 16 as shown in FIG. Only the dubbed cassette tape is obtained.

In this way, the music piece recorded on the disc 16 of the CD player 2 is reproduced, and if the cassette tape 26 has an old recording portion after the music piece has been recorded on the cassette tape 26 by dubbing. The old recording portion of the cassette tape 26 is erased, and if there is no old recording portion, the cassette tape 26 is fast-forwarded, thereby completing the dubbing.

Although the recording in the above-described embodiment is audio dubbing, instead of using the CD player as the information reproducing side, an information reproducing side for reproducing video information such as a video player or a video tape recorder is used. An information recording side for recording video information such as a video player or a video tape recorder in place of the cassette deck as a side,
The video information from the information reproducing side may be dubbed to the information recording side, or may be used for dubbing only the audio information included in the video information.

[0026]

According to the present invention as described above, claim 1
In the information reproducing side, when the reproduction of the information recorded on the first recording medium is completed, the reproduction end signal is output,
After responding to the reproduction end signal, the information recording side detects the presence or absence of the old recording portion on the second recording medium, deletes the old recording portion when it detects that the old recording portion exists, and deletes the old recording portion when it is not detected. Controls the drive of the second recording medium by fast-forwarding, so that when the reproduction of the information recorded on the first recording medium ends, the dubbing recording of the second recording medium ends, and after the dubbing, The presence or absence of the old recording portion of the second recording medium is detected, and if there is an old recording portion, it is erased, and if there is no old recording portion, it is fast-forwarded. In other words, the second recording medium is driven at a high speed while the old recording portion is being erased until the end of the second recording medium, so that dubbing can be completed quickly.

According to a second aspect of the present invention, when there is an old recording portion on the second recording medium in response to the end of reproduction from the information reproducing side, the recording control means on the information recording side determines whether the old recording portion exists. When the second recording medium is in the erasing mode, the old recording portion is erase-controlled. When there is no second recording medium, the second recording medium is repeatedly driven to the end of the recording medium while being fast-controlled, and the recording by dubbing is terminated early. Can be done.

Further, according to a third aspect of the present invention, when reproduction from the information reproducing side is completed by the recording control means, the second recording medium is erased for a predetermined time, and when there is an old recording portion, the second recording medium is erased. After the second recording medium is rewound for a predetermined time, the second recording medium is set to an erasing mode for a predetermined time longer than the predetermined time to erase the old recording portion. This operation is repeated until the end of the second recording medium, so that the recording by dubbing can be ended quickly and the unnecessary old recording portion can be securely erased from the second recording medium. Can automatically and quickly erase the old recorded portion without any erasing operation.

[Brief description of the drawings]

FIG. 1 is a block diagram of a dubbing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the apparatus of FIG. 1;

FIG. 3 is a diagram showing recording portions recorded on a cassette tape and a disc for explaining a problem of the conventional example.

[Explanation of symbols]

 2 CD player 4 Cassette deck 6 Controller 16 Disk (first recording medium) 20 Recording head 26 Cassette tape (Second recording medium)

Claims (3)

(57) [Claims] 1. A method for synchronizing the reproduction drive of a first recording medium on the information reproducing side with the recording drive of a second recording medium on the information recording side to transfer information on the first recording medium to the second recording medium. In the dubbing method, the information reproducing side outputs a reproduction end signal when the reproduction of the information recorded on the first recording medium is completed, and the information recording side responds to the reproduction end signal and then outputs the reproduction end signal. 2. The presence or absence of an old recording portion is detected on the second recording medium, the old recording portion is erased when the presence of the old recording portion is detected, and the drive control of the second recording medium is performed by fast-forwarding when it is not detected. Dubbing method to do. 2. An information reproducing side for reproducing information recorded on a first recording medium and outputting a reproduction end signal in response to the reproduction end of the information, and synchronizing with reproduction of the first recording medium. And a reproduction output from the information reproducing side is recorded on a second recording medium, and an information recording side is responsive to the reproduction end signal. Control means for detecting the presence or absence of an old recording portion on the second recording medium. The recording control means responds to a reproduction end signal from the information reproducing side. Means that the old record part from the old record presence detection means
The operation of setting the second recording medium in the erasing mode in response to the detection input indicating the existence of the old recording portion and controlling the erasing of the old recording portion in response to the detection input indicating the absence of the second recording medium is performed in a fast-forward manner. 2. A dubbing apparatus for controlling so as to repeat until the end of the second recording medium. 3. After the recording control means drives the second recording medium in the erasing mode for a predetermined time in response to the reproduction end signal from the information reproducing side, the old recording portion from the old recording presence / absence detecting means is not used. After rewinding the second recording medium for a predetermined time in response to the detection input indicating that there is, the second recording medium is set to the erasing mode for a predetermined time longer than the predetermined time, and the old recording portion is erased. 3. The dubbing apparatus according to claim 2, wherein the dubbing device controls the operation of driving the second recording medium by fast-forwarding in response to the detection input of the second recording medium until the end of the second recording medium.