JPS5819778A - Automatic music selector - Google Patents

Abstract

PURPOSE:To improve the operability of a tape recorder, by setting the address of the desired music at a microcomputer and then pushing an automatic music selection button to secure the automatic rewinding back to the head of a tape and to perform the selection of music. CONSTITUTION:The signal recorded on a magnetic tape 101 is reproduced by a reproducing head 102 and delivered to a terminal 104 via an amplifier 3. The reproduced signal is also supplied to a microcomputer 300 via a rectifier 105. The computer 300 contains a storage part 301, an arithmetic part 302, a control part 303, an input part 304 and an output part 305. for an operation for the automatic selection of music, a storage button 601 is pushed to set the address of the desired music and then an automatic music selection button 605 is pushed. The information is stored at the part 301 and then rewound by a driving part 200. The pulse of a tape end detecting circuit 501 is detected, and the tape is rewound back to the head. Then the selection of music is started, and the inter- music signals supplied from the rectifier 501 are counted. Then the reproduction is started when the tape reaches the desired music address.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to automatic music selection for a tape recorder.

The magnetic tape is run at high speed while the magnetic tape and the head are in contact with each other, and the recorded signals on the magnetic tape obtained by the high-speed running are rectified. By detecting the song gaps and counting the song gaps, automatic song selection tape recorders automatically enter playback mode after running for the number of songs stored in advance. When the order of the songs is known in advance, in order to find the beginning of the song you want to listen to and play it, conventional devices play the tape, check the number of the song that is currently being played, and then play the song. On the other hand, you can calculate how many songs you want to listen to before or after, set the calculated number in the storage device, and then start selecting songs. Alternatively, you can rewind the tape to the beginning in advance. The operating procedure is complicated and extremely troublesome, such as setting the song address of the song one wants to listen to in the storage device and starting song selection.

1 shows an example of a conventional automatic music selection tape recorder. A signal recorded on a magnetic tape 101 is reproduced by a reproducing head 102, the signal is amplified by an amplifier 103, and the signal is output to an output terminal 1.
It is output from 04. On the other hand, the reproduction signal from the reproduction head 102 is input to the input section 304 of the microcomputer 300 via the rectifier 105. The microcomputer 300 has a storage section 301. Arithmetic unit 302. Control unit 30
3. Input section 304. The input section 304 includes a memory button 601 . FF button 602
゜REW button 6n3. The PLAY button 604 is connected, and the output section 305 has the FF solenoid 201 of the mechanism drive section 200 and the REW solenoid 1/noid 202° PL.
AY solenoid 20 and 7 segment display display circuit 4
01 is connected.

The microcomputer 300 stores data input to the input unit 304 in the storage unit 301, or performs calculations in the calculation unit 302 based on the input data and data in the storage unit, and outputs data from the output unit 305 based on the calculation result. Outputs, but
Input section 304. Storage unit 301, calculation unit 302. Output section 3
Data transmission and control between each of the controllers 30
3 does. One method of selecting a desired song from among the songs on the tape whose names and song addresses are known in advance using the device shown in FIG. Detects that the PLA Y button has been pressed based on the data input from 304 [-1 is stored in the storage section 301, and the output section 05
I) Outputs the drive signal for LAY solenoid 20. When the mechanism starts playing, the signal from the magnetic tape 101 is transmitted to the playback head 102. It is output from an output terminal 104 via an amplifier 103, and the user can determine which song is being played by monitoring the output signal, and then select the song he or she wants to listen to based on the currently playing song. When the memory button 601 is pressed accordingly, the control unit 303 detects that the memory button 601 has been pressed, and the calculation unit calculates how many times the memory button 601 has been pressed. t, the data is stored in the storage unit 301. Further, the control unit 303 outputs data obtained by converting the stored number into seven segments to the display circuit 401 from the output unit 305. The user sets the number of songs by looking at the number displayed on the display circuit 401, and then presses the FF button 602 or the REW button 603 at the same time as the PLAY button 604.

Control unit 60! I controls the PLA Y solenoid 203, the FF solenoid 201, or the REW solenoid according to the input data, and starts the music selection operation. magnetic tape 10
1 and the reproducing head 102 are applied to it, and the reproduced signal is rectified by the rectifier 105 and input to the input section 304 of the microcomputer 300. Control unit 30
3 detects the song interval from the input data, and calculates the song interval by the calculation unit 30.
2 and compare it with the previously stored data.

As a result of the comparison, if the count number between songs and the stored data match, it is determined that the beginning of the target song has been found, and the output unit 3
05 to drive only the PLAY solenoid 203 to put the mechanism in the regeneration state.

As described above, the apparatus shown in FIG. 1 has drawbacks in that the user often has to make decisions when selecting music, and the operating procedure is complicated and troublesome.

SUMMARY OF THE INVENTION An object of the present invention is to overcome the above-mentioned drawbacks of the prior art and provide an automatic music selection tape recorder that does not require the user to judge the current song address one by one and allows the user to select a desired song with simple operations. It is in.

To achieve this purpose, the present invention provides an operation button that automatically rewinds to the beginning of the tape and then starts song selection once the song address of the song you want to listen to is set.
It is characterized by being equipped with a tape end detection circuit.

Hereinafter, an embodiment of the automatic music selection device of the present invention will be described with reference to FIG.

FIG. 2 shows an embodiment of the present invention, and the same reference numerals as in FIG. 1 indicate the same or equivalent parts.

The difference between the embodiment shown in Fig. 2 and the case shown in Fig. 1 is as follows.
An automatic music selection button 605 and a tape end detection circuit 501 that detects the rotation of a reel stand (not shown) are connected to the input section 304 of the microcomputer 300.

The operation buttons other than the automatic music selection button 605 are the same as those of the conventional device shown in FIG.
It has the same functions as before. Tape end detection circuit 501
generates a pulse signal proportional to the rotation of the reel stand, and the microcomputer 300 stores the data of the pulse signal input from the input section 304 in the storage section 301, and the calculation section 302 calculates the pulse signal. Calculate the period. When the tape end is reached and the pulse signal stops, that is, when the calculated value exceeds a certain set time, it is determined that the tape has ended.

The operating procedure for automatic song selection is to first press the memory button 601 to set the song address of the song you want to listen to, then press the automatic song selection button 6.
When 05 is pressed, the information is stored in the storage section 301 via the input section 304, and the REW solenoid is turned on to rewind the tape.

During this time, a Norx signal from the tape end detection circuit 501 is detected, and when it is determined that the tape is at the end, the next R
EW solenoid 202 is turned off, FF solenoid 201.
Then, the PLAY solenoid 206 is turned on to start music selection. During song selection, the inter-song signals from the rectifier 105 are counted, and when the target song address is reached, the Ii'F renoid 201 is turned off and the playback operation begins.

FIG. 3 shows a flowchart of a program for realizing the above operations.

When the program starts, it is first determined in step 701 whether the memory button has been pressed, and if it has been pressed, the number of times it has been pressed is counted in step 702, and step 703
Display at. If the memory button 601 is not pressed in step 701, the process moves to step 703 without counting in step 702. Next, the operation button determination is performed. If none of the operation buttons are pressed, step 704 (automatic music selection button determination), step 708
(PLAY button determination), step 716 (FF button determination), step 718 (REW button determination), and then returns to the program start. If only the FF button 602 or the REW button 603 is pressed, the mechanism mode is switched to FF in step 717 or to REW in step 719, respectively. If only the PLAY button 604 is pressed, step 708 (PLAY button determination), step 709 (FF button determination), step 7
10 (REW button determination) and step 715 (
PLAY) and the mechanism enters PLAY mode.

PLAY button 604 and FF button 602 or RE
If you press the W button 603 at the same time, step 707 F F direction song selection or step 711
(REW direction song selection), and the process moves to step 712 to determine between songs. When the song interval is determined in step 712 and the song interval is detected, the song interval is counted in step 713 (count),
In step 714, the count number and the count number in step 702 are compared. If they do not match, step 712 (
If they match, step 715 (P
LAY) and begins playback. If it is determined in step 704 that the automatic music selection button 605 has been pressed, rewinding of the tape is started in step (REW), and it is determined in step 706 whether or not the end of the tape has been reached. tape·
8 If the end is not reached, return to step 705 (REW) and continue REW, and if it is determined that the tape is end, step 70
Move to 7 (FF direction song selection) and proceed to the automatic song selection operation below.

As described above, according to the present invention, when selecting a tape whose song title and song address are known in advance, simply set the song address of the song you want to listen to and press the automatic song selection button 605 to automatically rewind the tape. After that, the user locates the beginning of the song they want to listen to and plays it, so the user does not have to judge how many songs to play or send later, and there is only one button to start automatic song selection, so operability has been significantly improved. .

[Brief explanation of the drawing]

Figure 1 is a block diagram of a conventional automatic music selection device. Figure 2 is a block diagram of a conventional automatic music selection device.
FIG. 6, a block diagram of an embodiment of the present invention, is a flowchart of a program for implementing the present invention in the block diagram of FIG. 101... Magnetic tape 102... Playback head 10
5... Rectifier 300/Microcomputer 301
...Storage section RO02...Calculation section RO03...Control section 304...Input section 305...Output section 501...Tape end detection circuit 601...Storage button 605...Automatic song selection Button 1st l

Claims (1)

[Claims] A storage means for storing the song address of a desired song in advance, a means for reproducing the song on the magnetic tape at high speed, a means for detecting the interval between the songs played at high speed, and a means for counting the interval between the songs. and a means for detecting a tape end in a music selection device that switches the mechanism to playback when the inter-song count matches the music address stored in the storage means, means for selecting automatic music selection, and inputting information. an input circuit, a memory circuit that stores data from the input circuit, an arithmetic circuit that computes the data, an output circuit that outputs the stored data and the computed data, and the input circuit, the memory circuit, the arithmetic circuit, and the output circuit. An automatic music selection device comprising a control circuit for controlling the music, and once automatic music selection is started, the tape is rewound to the beginning and then the music selection is started.