JPH0614276Y2 - Magnetic recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a magnetic recording / reproducing apparatus represented by an R-DAT, an 8 mm video tape recorder and the like.

[Outline of device]

In the present invention, in a magnetic recording / reproducing apparatus that controls reproduction of a magnetic tape based on a start ID and a skip ID that function as a pair, the end of recording of the skip ID should be detected and a pair should be formed with the skip ID. Start I
It is displayed that the instruction waiting state for the recording operation D is started.

[Conventional technology]

In the recently standardized R-DAT, a magnetic tape is wound around a rotating drum by about 90 degrees, and information is recorded / reproduced by a rotating head. The inclined track is roughly divided into three areas, and the central area P has PCM.
An audio signal is recorded, and areas S ₁ and S _{2 on} both sides of the audio signal are recorded.
A predetermined subcode signal is recorded in the. As a sub-code signal, for example, a start ID signal is required to be recorded at the beginning of each program for about 9 seconds (about 600 tracks) so that the program can be searched for even at high speed.

Further, a skip ID for skipping a predetermined program as a subcode signal without reproducing it can also be recorded for 1 second.

[Problems to be solved by the invention]

When the skip ID is detected, the next start ID is detected from there.
The program up to the position where is recorded is skipped and is not played. Since the conventional device records the skip ID and the start ID independently of each other, the user forgets to record the next start ID of the skip destination after recording the skip ID, and the correct skip operation is performed. Sometimes could not be performed.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a magnetic recording / reproducing apparatus for controlling reproduction of a magnetic tape based on a first ID mode signal and a second ID mode signal that function as a pair. A recording means for recording the first ID mode signal or the second ID mode signal on the magnetic tape, and a state waiting for an instruction to start the recording operation of the first ID mode signal which should be paired with the recorded second ID mode signal. Display means for displaying, and the second
Display control means for detecting the end of recording of the mode signal and causing the display means to display the instruction waiting state, and a recording instruction signal for instructing recording of the first ID mode signal or the second mode signal. And an instruction means for outputting.

[Action]

According to the present invention, when the user outputs the recording instruction signal for instructing the recording of the second ID mode signal through the instruction means, the recording means records the second ID mode signal on the magnetic tape.

As a result, the display control means detects that the recording of the second ID mode signal has ended, and is in the instruction waiting state for the start of the recording operation of the first mode signal that should be paired with the recorded second ID mode signal. Is displayed on the display means so as to indicate.

As a result, the user is prompted to record the first ID mode signal that should be paired with the recorded second ID mode, and the first ID signal that should be paired with the second ID mode signal is not recorded. Can be prevented.

After that, when the user outputs a recording instruction signal for instructing the recording of the first ID mode signal via the instruction means based on this display, the recording means records the first ID mode signal on the magnetic tape. Become.

〔Example〕

FIG. 1 is a block diagram of a magnetic recording / reproducing apparatus of the present invention. In the figure, reference numeral 1 is a magnetic tape, which is run by a running means 2 including a capstan, a pinch roller, a reel motor and the like (not shown). Reference numeral 3 denotes a control means such as a microcomputer, which executes a predetermined command input from the input means 4 such as a switch and a keyboard. Reference numerals 5 and 6 are recording means and reproducing means for recording and reproducing signals on the magnetic tape 1, and include a rotary head which can be switched at the time of recording and reproducing. 7 is a start ID signal as a cue signal and a skip ID as a skip signal
A generating means for generating a signal and a program number (signal), and 8 is a detecting means for detecting these signals from the reproduced signal. The generating means 7 and the detecting means 8 may be provided separately and independently corresponding to each signal. Reference numeral 9 is a detection means for detecting the beginning (silent portion) of the program of the recording signal or the reproduction signal. Reference numeral 11 is a detection means for detecting an erroneous erasure (recording) prevention piece of the cassette. Reference numeral 10 denotes display means for displaying predetermined information, part of which also serves as the input means 4, and is configured as shown in FIG. 2, for example.

Next, the operation will be described.

When the input unit 4 is operated to set the recording mode, the control unit 3 controls the traveling unit 2 and the recording unit 5, A / D-converts the input signal, and after performing a predetermined signal processing, the magnetic tape 1
Record on top.

On the other hand, the input signal (recording signal) is input to the detecting means 9.
When the detecting means 9 detects a voiced part (beginning) after a silent part (between songs) for a predetermined time (n seconds) or more of the input signal (and immediately after the start of recording), the control means 3 controls the generating means 7. Then, the start ID and the program number are generated. This signal is supplied to the recording means 5 and recorded as subcode signals in the subcode areas S ₁ and S ₂ of the track. These signals are recorded for 9 seconds (600 tracks). The control means 3 during the recording operation turns on the display part a and the display part f of the display means 10. The program number is automatically incremented by 1 every time a track interval is detected. Thus, for example, as shown in FIG. 3, the start ID signal (S-ID) and the program number (P) for 9 seconds are automatically recorded at the beginning of each program. When the recording mode is changed from the recording mode to the recording / pause (REC / PAUSE) state during recording, and the recording mode is released again to start the recording mode, the start ID and the incremented program number are recorded therein. In this mode, when the interval between songs is less than n seconds (for example, 2 seconds), the start ID and the program number are not added to the program immediately after that.

In such a case, the start ID can be added by manual operation. For example, when the reproduction mode is selected by the input means 4, the control means 3 controls the traveling means 2 and the reproduction means 6, causes the magnetic tape 1 to travel, demodulates and processes the reproduced signal, and then D / A converts and outputs. Let

On the other hand, when the reproduction mode is set, when a predetermined key (ID mode key) of the input means 4 is operated, the control means 3 sequentially turns on any one of the display portions a, b and c of the display means 10 according to the number of times of operation. (Fig. 2). Since the start ID is recorded now, the key is operated so that the display portion a lights up. When the preparation for recording the start ID signal is completed, the control means 3 lights the display section d. When confirming the beginning of the song (program) while listening to the reproduced sound, the user presses the display section d (which constitutes a part of the input means 4). At this time, the control means 3 blinks the display portions e above and below the display portion d. At this time, the start ID is generated by the generating means 7.
Is output and recorded on the magnetic tape 1 (the program number is not recorded).

When the recording for 9 seconds is completed, the display section e is turned off.

By operating the enter key (display section d) in this way, the start ID can be recorded at a desired position (FIG. 4).

Manual recording is also possible in the recording mode. In this case, the start ID and the program number are recorded at the position where the enter key is operated. The program number at this time is also sequentially incremented. Next, the operation according to the present invention will be described.

When the skip ID is recorded, the reproduction mode is selected and the ID mode key is operated so that the display part b lights up. When the preparation for recording is completed, the display section d lights up. When the position to be skipped arrives while listening to the reproduced sound, the display section d is pressed. At this time, the display portion e blinks and the skip ID signal output from the generating means 7 is recorded as a subcode signal in the subcode area for 1 second. When the recording is completed, the display part e is turned off, the display part b is turned off, and the display part a is turned on instead. That is, when the control means 3 detects that the recording of the skip ID is completed, the start I
A display means 10 is displayed for prompting the user to record the start ID while shifting to the recordable state of D, that is, the display means 10 is in a state of waiting for an instruction to start the recording operation of the start ID which should be paired with the recorded skip ID. To display. In parallel with this display, when the portion to be skipped is finished and the portion to be listened to is started, the user again presses the enter key as an instruction means. At this time, as in the case described above, the display portion e blinks, the start ID is recorded for 9 seconds, and the display portion e is turned off after the recording is completed.

At this time, the display section a remains lit, and the display section b does not automatically illuminate in place of the display section a. Therefore, when further recording the skip ID, the operation of operating the input means 4 to turn on the display portion b is repeated.

In this way, the skip ID and the corresponding start ID can be recorded at the desired position (FIG. 4).

It is also possible to record the start ID by manually operating the ID mode key again after recording the skip ID. However, in this case, not only the operability is deteriorated, but also the user may forget to record the start ID corresponding to the skip ID. Therefore, it is preferable to automatically shift to the start ID recording mode (at least a display mode for prompting the recording of the start ID) after the skip ID recording as in the above-described embodiment.

A high-speed search is possible using the start ID or program number recorded in this way. That is, when a desired program number or a certain number of tunes before or after the current position is designated and inputted by the input means 4, the control means 3
Controls the running means 2 to run the magnetic tape 1 at a high speed of about 200 times the speed during normal recording and reproduction. At this time, the detection means 8 detects the start ID or the program number from the reproduction signal output by the reproduction means 6. Normal reproduction is performed when a desired program is searched.

When the detection means 8 detects the skip ID during normal reproduction, the magnetic tape 1 is run at high speed until the next start ID is detected, and the next start ID is detected.
Normal reproduction is again executed from the program.

Next, the operation for deleting the once recorded start ID will be described. First, set the playback mode,
The display section c is turned on by operating the ID mode key.

When the detection means 8 detects the start ID from the reproduction signal, the control means 3 turns on the display part f of the display means 10,
Notifying that the start ID has been detected,
The display part d is lit, the switch to be operated next is informed that the switch is the enter key, and the operation is guided. When the display unit d is pressed while the display unit d and the display unit f are on for 9 seconds (while the start ID is being detected), the control means 3 causes the display unit e and the display unit f to blink, and the traveling The means 2 is controlled to drive the magnetic tape 1 in the opposite direction. When the beginning of the start ID is detected, the magnetic tape 1 is reversed and run in the forward direction again.
Is erased. This erase operation is performed for a little longer than 9 seconds (for example, 10 seconds). When the erase operation is completed, the display section e and the display section f are turned off.

Incidentally, when the start ID is deleted, the corresponding program number is also automatically deleted. As a result, it is possible to prevent an erroneous search because only the program number remains even though there is no start ID.

Next, when erasing the skip ID, the display unit h (which constitutes a part of the input means 4) is pressed to set the skip cancel mode (at this time, the display unit h lights up).
As a result, the skip operation is not performed even if the skip ID is detected. Further, as in the case of deleting the start ID, the reproduction mode is set and the display portion c is turned on.

When the skip ID is detected from the reproduction signal, the display portion g is turned on to indicate that the skip ID is detected, and the display portion d is also turned on to guide the erasing operation. Although the skip ID is recorded for only 1 second, it is not always easy to operate the display section d during that time, so the display section d and the display section g are lit for a predetermined time T longer than that (for example, 5 seconds). When the display unit d is pressed while the display unit d and the display unit g are lit, the display unit e and the display unit g blink. At this time, the magnetic tape 1 is temporarily stopped and then run in the opposite direction, and then run again in the forward direction from the position of the skip ID. At this time, the skip signal erasing operation is performed for a little longer than 1 second (for example, 2 seconds). When the erasing operation is completed, the display section e and the display section g are turned off.

In this way, the start ID at the desired position and the skip I
D can be erased (Fig. 5). Start ID
Since the skip ID is set by setting a predetermined bit in the subcode signal to a logic 1, its erasing is performed by setting that bit to a logic 0.

When the detecting means 11 detects the erroneous erasure (recording) prevention piece of the cassette (it goes without saying that the above-mentioned automatic recording of the start ID and program number is not performed at this time), the control means 3 uses the ID mode key. The display parts a, b, and c are not turned on even if is operated. As a result, the user cannot select the display unit and can know that recording (erasing) cannot be performed. At this time, pressing the display section d is invalid. When the output of the detection means 11 indicates a recordable state, operating the ID mode key causes the display portions a, b,
Not only can any one of c be selected (lighted), but the display portion d is lighted when recording or erasing is possible. As a result, it becomes clearer that the recording is possible, and the user can be informed of the switch to be operated next and the operation can be guided.

In order to make the guiding more effective, at the time of normal reproduction (when the recording / erasing of the start ID and the skip ID is not input and all of the display parts a, b, and c are turned off), the start is started. When the ID or the skip ID is detected, the display part f is turned on for 9 seconds and the display part g is turned on for 1 second, respectively, while the display part d is turned off. Therefore, the user can know that the start ID or the skip ID cannot be duplicated at the position where the start ID or the skip ID is already recorded. As a result, the position of double recording may be slightly shifted and the start ID
Alternatively, the length of the skip ID is prevented from being 9 seconds or longer or 1 second or longer.

For example, start ID recording and deletion, and skip ID
It is also possible to provide a dedicated switch and display corresponding to each of recording and erasing. However, in such a case, the number of switches in the input means 4 increases, not only the operability is deteriorated, but also the space occupied by the input means 4 and the display means 10 becomes large, and the size of the apparatus becomes large. Therefore, as in the embodiment, it is preferable that the selection and execution are input by using the ID mode key and the enter key.
When the display section d and the display section h are dedicated to display, corresponding keys (enter key and skip cancel key) may be provided in the input means 4.

〔effect〕

According to the invention of the present application, the display means displays the recording instruction waiting state in order to indicate the instruction waiting state for the start of the recording operation of the first ID mode signal to be paired with the recorded second ID mode signal. As a result, the user is prompted to record the first ID mode signal that should be paired with the recorded second ID mode, and the recording of the first ID signal that should be paired with the second ID mode signal. Can be prevented.

[Brief description of drawings]

FIG. 1 is a block diagram of a magnetic recording / reproducing apparatus of the present invention, and FIG.
The figure is a plan view of the display means, and FIGS. 3 to 5 are explanatory views of the operation. 1 ... magnetic tape 2 ... running means 3 ... control means 4 ... input means 5 ... recording means 6 ... reproduction means 7 ... generation means 8, 9 ... detection means 10 ... display means 11 ... Detection means

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Yoshiki Furuta, 4,2610 Hanazono, Tokorozawa, Saitama Prefecture, Tokorozawa Plant, Pioneer Co., Ltd. (72) Shinichi Yamamizaka, 2626, Hanazono, Tokorozawa, Saitama Pioneer Inside Tokorozawa Factory (72) Inventor Naoto Arifuku 26-10 Hanazono, Tokorozawa City, Saitama Pioneer Company Inside Tokorozawa Factory

Claims (1)

[Scope of utility model registration request] 1. A magnetic recording / reproducing apparatus for controlling reproduction of a magnetic tape based on a first ID mode signal and a second ID mode signal functioning as a pair, wherein a first ID mode signal or a second ID is generated based on a recording instruction signal. Recording means for recording the mode signal on the magnetic tape, and the first to be paired with the recorded second ID mode signal.
Display means for displaying a state of waiting for an instruction to start the recording operation of the ID mode signal, and display control for detecting the end of the recording of the second ID mode signal and causing the display means to display the instruction waiting state. A magnetic recording / reproducing apparatus comprising: a means for outputting a recording instruction signal for instructing recording of the first ID mode signal or the second ID mode signal.