JPS63298843A - Music number write system - Google Patents

Abstract

PURPOSE:To facilitate renumbering by searching a start ID from the head of a tape when a sleep renumbering key provided onto an operation panel is operated to write the music number sequentially, and turning power off after the tape is unloaded automatically by the end of numbering. CONSTITUTION:When the sleep renumbering key SRK provided onto an operation panel 18 is operated, a system controller 13 controls a signal processing section 12 and a tape running control section 14 to search a start ID from the head of tape, then the start ID and music number is written to the head of music sequentially. Moreover, a loading/unloading control section 16 is controlled automatically by the end of renumbering of the music number to unload the tape from a tape running mechanism 17 and to store it into a cassette, and a power supply section 20 is turned off to disconnect the power supply to the part other than the system controller. Thus, the renumbering of the music number is attained in case of visit or before sleeping at night, thereby facilitating the renumbering operation.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a song number writing method for a DAT device (digital audio tape device), and in particular, a method for recording a start 10 in the subcode area at the beginning of a song. while recording,
The present invention relates to a song number writing method for sequentially recording song numbers from the beginning in the subcode area later (after recording).

<Prior Art> When pre-recording music with a DAT device, a cue signal (referred to as a start ID) can be recorded at the beginning of the song to enable high-speed searching for a predetermined song. In other words, the DAT device is equipped with a Star 1-ID key, and by pressing this key during recording, the Star 1-TD indicating the beginning of the song can be recorded for the required time (9 seconds). There is. Also, some DAT devices allow you to record the song number along with the start ID.
By specifying a desired song number, it is possible to search for a song with that song number at high speed.

By the way, if the song number is recorded at the same time as the song is recorded, the song number may be recorded incorrectly, the song number may be doubled, or the song number may be omitted. In particular, you can record the tape halfway while recording the song number, and then continue recording from the previous recording point at a later date.
Or, if you delete the previous recording from the middle and record it, the song number may be recorded incorrectly or the song number may be omitted.

<Problem that the invention is trying to solve> For this reason, DA
T device has a function to reassign track numbers (renumbering function)
There is. This renumbering function searches for a start ID from the beginning of the tape in response to a renumbering request, and each time the start ID is searched, the track numbers are sequentially after-recorded on the tape together with the start ID.

However, in this conventional method of writing song numbers by after-recording, it takes a considerable amount of time to renumber the song numbers, and there is a problem in that renumbering is troublesome. Even if 2 to 120 minutes tape
Assuming that 0 songs have been recorded and it takes 8 seconds to cue one song, it will take 160 seconds to cue, and the song number must be recorded for 9 seconds along with the start TD, so write the song number. It took 180 seconds to complete, totaling 340 seconds (5
(minutes 40 seconds) There was a problem in that the renumbering operation was troublesome.

From the foregoing, it is an object of the present invention to provide a song number writing method that facilitates numbering.

Means for Solving Problems〉 Figure 1 shows a diagram of D that realizes the song number writing method according to the present invention.
FIG. 2 is a block diagram of main parts of an AT device.

11a and llb are recording/reproducing heads, 12 is a signal processing section, 13 is a system controller, 14 is a tape running control section, 15 is a tape running mechanism, 16 is a loading/unloading control section, 17 is a loading/unloading mechanism, 18 19 is an operation panel, 19 is a power supply section for the system controller, and 20 is a power supply section that supplies power to parts other than the system controller.

Also, 5RKlf sleep renumbering key, ps
w is the power key.

Function> When the sleep renumbering key SRK provided on the operation panel 18 is operated, the system controller 13 controls the signal processing section 12 and the tape running control section 14 to search for TD starting from the beginning of the tape. Then, the star) ID and track number are sequentially written at the beginning of the track, and when renumbering of the track number is completed, the loading/unloading control unit 16 is automatically controlled to move the tape to the tape running mechanism 17.
After unloading the computer and storing it in a cassette, the power supply section 20 is turned off to cut off power supply to parts other than the system controller.

<Example> Fig. 1 shows D that realizes the song number writing method according to the present invention.
FIG. 2, which is a block diagram of the main parts of the AT device, is a flowchart of the processing of the present invention.

In FIG. 1, lla and llb are recording/reproducing heads;
12 is a signal processing unit, 13 is a system controller configured with a microcomputer, 14 is a tape running state TLJ unit, 15 is a tape running mechanism, 16 is a loading/unloading control unit,
17 is a loading/unloading mechanism, 18 is an operation panel, 19 is a power supply unit for the system controller, 20
is a power supply unit that supplies power to parts other than the system controller.

The signal processing unit 12 stores the audio data read from the magnetic tape by the first and second recording/reproducing heads lla and llb in the built-in RAM in the playback mode, and performs error detection and correction on the audio data. After other processing,
(DA conversion and output, and also stars included in the subcode) 10. It is designed to identify time codes, track numbers (program numbers), etc. Further, during recording, the signal processing unit 12 adds an error correction code to the audio data input from an analog/4G digital converter (not shown), and records it on the tape together with a predetermined subcode via the recording/reproducing heads lla and llb. do.

The tape running control section 14 controls the tape running mechanism 15 based on commands from the system controller 13 to fast forward, rewind, and replay the tape as appropriate.

The loading/unloading control section 16 controls the loading/unloading mechanism 17 based on commands from the system controller 13 to load/unload cassettes and tapes.

The loading operation by the loading/unloading mechanism 17 includes (i) pulling the cassette set on the tray horizontally into the device (horizontal loading); ii
1. Next, lower vertically and set the tray on the tape transport mechanism (vertical loading), then G11l.
This is done by moving the tape loading post from the position inside the tray to both sides of the rotating cylinder to wrap the tape around the rotating cylinder at a predetermined wrapping angle, and the unloading operation is performed by the reverse operation of the above loading operation. be exposed. Incidentally, in the unloading operation, it is also possible to perform only tape unloading and not to unload (eject) the cassette.

The operation panel 18 is provided with various operation keys, and SRK is a sleep renumbering key, and psw is a power key.

The power supply m19 for the system controller constantly supplies power to the system controller 13. The power supply section 20 supplies power to the signal processing section 12 and the tape running control section based on the power on/off signal PNP output from the system controller 13. 14. Controls power supply to the loading/unloading control section 16. That is, the power key PS
When W is turned on, the system controller 13 generates a high-level power on/off signal PNP, causes the power supply section 20 to supply power to each section, and on the other hand, presses the power key P.
When the SW is turned off or the sleeve renumbering process described later is completed, a low-level power on/off signal PNP is generated to cause the power supply section 20 to cut off the power supply to each section.

Hereinafter, the overall operation of FIG. 1 will be explained according to the flowchart of FIG. 2. It is assumed that a start mark D is recorded at the beginning of each section. It is also assumed that the power key PSW is turned on and power is supplied from the power supply section 20 to each section 12, 14, 16.

First, the sleep/renumbering/renumbering settings on the operation panel 18
Key SRK is pressed to request allocation of song numbers (step 101).

ff'l due to sleep renumbering key suppression
When the recording request occurs, the system controller 13 causes the tape running control section 14 to rewind the tape and return the tape to the beginning two times (steps 102 and 103). In addition, 1-M due to completion of tape rewinding.

(M is the song number).

When tape rewinding is completed, the system controller 13
The tape running controller 14 causes the tape to run in fast forward mode (step 104).

In parallel with this tape fast-forward running control, it is checked whether the tape end has been detected by a tape end detector (not shown) (step 105), and if the tape end has not been reached, it is checked whether star 1-ID has been detected. Step 106), tape end is reached or START! Step 104 until D is detected.
Repeat the following process. . The signal processing unit 12 checks whether a star) ID exists in the subcode read from the recording/reproducing heads in and llb during fast forward running, and if a star) ID is detected, a star 1-ID detection signal is sent. The SID is output to the system controller 13.

If the start ID is detected in step 106 (if the start ID occurs), the system controller 13
In this case, the tape running control unit 14 returns the tape to the start position of the start 2D and causes the tape to be fed at the play speed, and the signal processing unit 12 outputs subcodes including the start ID and track number M, etc. of the tape. After recording in the sub-coding area (Steno/107
).

After that, the signal processing unit 12 increments the song number by one using the following formula % (step 108),
The process from step 104 onwards is repeated.

Then, the above processing is repeated, and when the tape end is reached, the result is "rYES" in step 105, and the system controller 13 causes the tape running control section 14 to rewind the tape (step 109).

When tape rewind is completed, system controller 1
3 controls the loading/unloading control section 16 to unload the tape from the tape running system and store it inside the cassette (step 110).

After that, the system controller 13 connects the power supply unit 20
Input the low level power on/off No. 4N PNP to the power supply section 20, cut off the power supply to the signal processing section 12, tape running control section 14, loading/unloading control section 16, etc., and turn on the track number. The renumbering process ends (step 111).

<Effects of the Invention> According to the present invention, when the sleep renumbering key provided on the operation panel is operated, starting from the beginning of the tape, searching for ■D and sequentially writing the track numbers, as well as starting the numbering. I configured it to automatically unload the tape and then power off when the computer is finished.
It becomes possible to perform renumbering of song numbers when going out or before going to sleep at night, and the renumbering operation can be performed easily.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the main parts of a DAT device that implements the music f# writing method according to the present invention, and FIG. 2 is a flowchart of the processing of the method of the present invention. 11a, llb...recording/playback head, 12...signal processing unit, 13...system controller, 14...tape running control unit, 16...loading/unloading control unit, 18...
Operation panel, 19...Power supply unit for system controller, 20...
power supply section,

Claims (1)

[Claims] In a track number writing method in a digital audio tape device, there is a sleep renumbering system provided on an operation panel.
This track number writing method is characterized in that when a key is operated, a start ID is searched from the beginning of the tape and track numbers are sequentially written, and the tape is automatically unloaded upon completion of numbering and then the power is turned off.