JPS59116976A - Music selecting method - Google Patents

Abstract

PURPOSE:To select a desired music by only inputting a music program number without rewinding a tape by reading out a tape position corresponding to the music program number from a storage area to run the tape and to complete the music selection when the present tape position coincides with the tape position of a desired music program number. CONSTITUTION:When it is desired to select the music of a desired music number, the music number is inputted from a ten-key 109a, and thereafter, a music selection start button 109c is depressed. The depression of the music selection start button 109c is detected immediately by a processing device 107a, and the desired music number is set to a general register by the processing device 107a. Thereafter, the processing device 107a retrieves a tape position Tt corresponding to the desired music number Mt, from a storage area corresponding to a tape discriminating number ''15'', sets it to a register 113, and also outputs a motor starting signal MST to a motor driving circuit 116. As a result, the motor driving circuit 116 is rotated forward or reverse by a quick traversing in accordance with the magnitude of the present tape position Ta and the target tape position Tt, and stops at the time of Ta=Tt, (the music selection is completed) to reproduce thereafter, the selected music.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a song selection method, and relates to a song selection method in which a song number is input into a cassette tape recorder or karaoke device to select a desired song. In general, the tape is run by inputting information such as whether it is a song before or after the currently selected song (referred to as the nth song). When the number n or (n+1) matches, tape running is stopped and music is selected. However, 1. With this method, it is necessary to be able to recognize the currently selected song, and the number of songs between the desired song and the currently selected song must be 1111t, making the operation cumbersome. Met. Also, as another method of selecting songs, rewinding a cassette tape,
After that, enter the track number from the beginning and run the tape.While the tape is running, detect unrecorded parts between songs and use the argument, and when the argument value matches the song selection number, stop the tape run and select a song. There is a way to do it.

However, this method has the disadvantage that it requires rewinding the cassette tape, which increases the time required to select a song.

An object of the present invention is to provide a new music selection method that does not require rewinding the tape and can select a desired song simply by inputting the song number.

Below, a case in which the present invention is applied to a cassette tape recorder will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is an explanatory diagram of stored contents, and FIG. 6 is a block diagram of an unrecorded portion detection circuit.

In FIG. 1, 101 is a motor that drives a reel or capstan (not shown), and 102 is a motor that is attached to the reel, capstan, or motor so that the reel, motor, or capstan (in the embodiment, the motor that drives the capstan) rotates by a predetermined amount. 2-phase pulse P a' having a phase different from each other by 90' each time.

The pulse generator 6.103 that generates Pb is a rotation direction discrimination circuit that monitors the phases of two-phase pulses Pa and Pb to determine the rotation direction, and the phase of pulse Pa is 90 degrees ahead of the phase of pulse Pb. In this case, the positive pulse +P is assumed to be rotating in the normal direction, and the phase of the pulse Pa is the pulse P.
If the phase is delayed by 90'' from the phase of b, it is assumed that the phase is reversed and a negative pulse -P is generated.10
Reference numeral 4 denotes a reversible counter which counts up the plus pulse +P generated every predetermined rotation in the positive direction, counts down the minus pulse -P generated every predetermined rotation in the negative direction, and stores the tape running position. 105 is a display section that displays the tape running position of the reversible counter 1o4, and 1o6 is a display drive circuit. 107 is a microcomputer, which includes a processing device 107a, a control program memo IJ107b storing a control program, and R
It has AM (random access memory) 107c. For example, as shown in FIG.
99, respectively, storage areas MO1, MO2, etc.
- M99, and each storage area stores the tape running position or stop position of the corresponding cassette tape (tape position), the track number corresponding to the current tape position, and the total number of songs that have not been recorded on the cassette tape. The correspondence between the song number and its starting tape position is stored. 108 is RAM107
Bubble memory or rewritable EEROM (Electric Er
available RDM )K. Furthermore, R,
The AM 107c may be configured with a battery-backed RAMK and the non-volatile memory may be omitted. Reference numeral 109 is an operation panel, which includes a numeric keypad 1 for inputting the identification number of the cassette tape loaded in the tape deck and the desired track number.
09a, tape identification number entry key 109b, song position memory switch 109d, which is operated when storing the song position to the song selection start button 109, counter reset button 109
0, etc. Reference numeral 110 amplifies and outputs a repeating signal detected by a Nipo head (not shown) during the Nipo autopsy. 11
Reference numeral 1 denotes an unrecorded portion detection unit which outputs an unrecorded portion detection signal when a predetermined length of unrecorded portion is detected. This unrecorded portion detection unit 111 determines the level of the reproduced signal as shown in FIG. 3, and outputs the unrecorded signal NR8K "1" when the level is below the neck and ankle level, and outputs "0" when the level is above a predetermined level. Level detection 1111a, not gate 111b, and non-recording signal N
The flip-flop 111C is set and reset by R8VC, and when the flip-flop 111C is set, in other words, when a non-recorded portion is detected, the rotation direction determination circuit 105 outputs a positive cross +P.
AND gate 111d that passes negative pulse -P, OR gate 111e, and AND gate 111d
The argument is the output cuckold, and the flip-flop 111
A counter 111f whose singing value is cleared to zero when C is reset, a preset register 111g to which a numerical value Np corresponding to the tape length of Di constant is set in advance, and the numerical value NC of the counter 111f and the preset value. A comparator 1 that determines the magnitude of Np and outputs a non-recorded portion detection signal (NRI) when Np≦Nc.
11h, a flip-flop that is set by the positive pulse +PK and reset by the negative pulse -PK, or in other words, a clip that is set when the rotation is in the forward direction and reset when the rotation is in the reverse direction.

The flop 111i and the AND gate 111J output the non-recorded portion detection signal N as a count-up pulse Pu when the flip-flop 1111 is in the forward direction (when the flip-flop 1111 is set). When the flip-flop 1111 is reset) the non-recording portion detection signal NRD is converted into a countdown pulse Pd.
It has an AND gate 111k that outputs . 112 is the number of unrecorded portions from the beginning of the cassette drop by counting down the count up (count up pulse Pu and count down pulse l) d output from the unrecorded portion detection unit 111, in other words. 113 is a reversible counter that stores the track number (current track number) Ma of the currently selected track, and 113 is the first key of the desired track number.
This is a register that can be deleted by two sets at position 75. If you input the desired song number using the numeric keypad 109B on the operation panel 109 and press the song selection start button 109C, the processing device 107
a reads out the leading tape position corresponding to the pJT program report number from the storage area of the RAM 107c corresponding to the cassette tape KN mounted on the deck and stores it in the register 113. 114 is a display section that displays the content of the reversible run 6Z112, in other words, the paddy and the track number corresponding to the tape position; 115 is a display drive circuit; 116 Id motor 101
It is a motor drive-1 path that drives the. This motor drive circuit 116 has a reversible counter 104Vc as shown in FIG.
The absolute value Er of the difference between the current tape position Ta stored in memory and the target position stored in the register 115 (the first tape position of the track number you want to select) Tt is plus when both are 5≦Tt. The code signal PSN is expressed as Ta )T
Performance section 11 outputting a minus sign signal NSN at time t
6a, a flip-flop 116b that is set by the motor start signal MSTx output from the processing device 107a when the music selection start button 109C is pressed, and an oscillator that generates a fast-forward pulse RP that adjusts the speed according to the fast-forward speed. 11
6C and Er, which is the output of the performance section 116a, are preset, and a counter 11 reduces the contents each time a fast forward pulse RP is generated from the music selection special oscillator 116C.
6d, when the contents of the counter 116d are not zero and the clip-flop 116b-□ is set, the oscillator 1
Pulse I generated from AND gate 16c (Antogate passing P) 116e and pulse train passing through Antogae) 115e is accelerated internally or exponentially at startup, and when the pulse from AND gate 116e is interrupted. The acceleration/deceleration circuit 116f decelerates the pulse train linearly or exponentially, and the plus sign signal P8N or minus sign signal N8NK output from the performance section 116a allows acceleration/deceleration times jii! An encoding circuit 116g that encodes the pulse train output from the 1116f and generates a forward rotation command pulse PP or a reverse rotation command pulse NP, and a positive pulse +P output from the forward rotation command pulse PP and the rotation direction determination circuit 103 are counted up. Then, count down the reverse command pulse NP and minus pulse -P, and calculate the number of command pulses (PP, NP) and the actual number of movement pulses (-4-P).
, P), and a DA conversion 1116i that generates an analog snow pressure (speed command) Vc proportional to the contents of the error register 116h.
and a speed control circuit 116j that controls the speed so that the speed command Vc matches the actual speed va output from an actual speed detector (not shown). Note that the flip-flop 116b is reset when the content of the counter 116d becomes zero (ZR8=1). In this motor drive circuit, a number of command pulses Pc equal to the difference between the current tape position Ta and the target position Tt pass through the antagonist 115e, and the command pulse train is
The tape is then accelerated and decelerated, and is encoded according to the magnitude of the current tape position Ta and the target position Tt, and is stored in the error register 116h.
K is stored in the DA converter 116i.

When the motor 101 that drives the motor 101 by valving the speed control circuit W6116j rotates, a plus pulse +P or a minus pulse -P is generated from the rotation direction determination circuit 103 depending on the rotation direction, and the error register 116h is set in the zero direction. reduce And startup error register 116h
The content (absolute value) of is gradually increased, and the motor 101 is accelerated, and in the steady state, the content (error) of the error register 116h is a constant value corresponding to the nine fast-forward speeds, and the motor 101 rotates at the fast-forward speed. After the command pulse is discontinued, the motor 101 decelerates and stops.

Next, one aspect of the present invention will be explained in detail.

Load a commercially available cassette tape on which the first number of songs have been recorded into the deck, input the identification number of the cassette tape (for example, 15") using the numeric keypad, and press the entry key 109b. Entry key 1
Due to the suppression of 09b, the identification number that had already been input from the numeric keypad and set in the input register (not shown).
15'' is immediately cut off by the processing unit 107a VC and set in the built-in general-purpose register 107a', and the processing unit 107a reads the tape identification number ``15''K from the storage area of RAMI D7c corresponding to the VC. Tape position I
ll a1 Read out the track number Ma with the tape alignment "K" and set it in the general-purpose register, and then set it in the reversible counters 104 and 112.

Tape position Ta and track number Ma are reversible counters 104,1
If it is set to 12, it is displayed on the display sections 105 and 114, respectively. If the song recorded on the cassette tape with the tape identification number "15" is to be played back from the beginning for the first time, :0 will be displayed on the display sections 105 and 114.

If zero is not displayed, press the counter reset button 109e on the operation panel 109 and the processing device 107a will reset the reversible counter IQ! , 112 and clearing its contents, the contents of the corresponding t' memory area are also cleared. In this state, when the program position storage switch 109d is pressed to set the program position storage mode and the playback button (not shown) on the operation panel 109 is pressed, the tape is fed at the playback speed. When the tape starts to move, the rotation direction determining circuit 103 generates a positive pulse of 10P or a negative pulse of -P (plus pulse of 10P in this example) depending on the direction of movement. -P
is counted down, the tape position is stored in real time, and is displayed on the display unit 105. On the other hand, relocation autopsy 110
The positioning signal generated from the is input to the unrecorded part detection circuit 111, and when the unrecorded part detection circuit 111 outputs the unrecorded part for a predetermined length (or even a predetermined time), it generates a count up pulse Pu according to the direction of movement. Alternatively, a countdown pulse Pd is generated (in this example, a countup pulse Pd is generated).
). Therefore, before the first song is played, the unrecorded portion detection circuit 111 detects the first unrecorded portion of a predetermined length and generates a count-up pulse Pu.

As a result, the contents of the reversible counter 112 become e′1#K
Become. When the occurrence of the count-up pulse Pu and the count-down pulse Pd is identified by the processing device 107 a', the processing device
The contents of 04, that is, the song number and its tape position, are read and stored in the storage area corresponding to the tape identification number "15" of RAM 107C. As the tape progresses, the songs of all songs and their tape positions are read using the same control. The correspondence relationship is R
It is stored in a predetermined storage area of the AM 107c.

The above is a case in which the correspondence between the track number and its leading tape position is stored during playback, but the correspondence between the track number and its position can be similarly stored during fast forwarding or rewinding. Furthermore, you can also memorize the song number and its position while recording.

For example, if you want to record from a record that has several songs on it, you need to insert it into a cassette tape deck and enter the cassette tape's identification number (for example, lN9) using the numeric keypad.
5It), then press the entry key 109.
Press b. By pressing the entry key 109b, the tape identification number It95P+ is immediately read by the processing device 107a and set in the built-in general-purpose register 1078, and then the processing device 107a reads the tape identification number It95P+.
95 ''') (, AM107C memory IJi
From area l to tape position Ta1 track number M corresponding to the tape position
After reading and setting a in the general-purpose registers, it is sectored into reversible counters 104 and 112, and Ta, Ma
is displayed on the display units 105 and 114K.

Now, if recording is to be performed from the beginning of the cassette tape, zero will be displayed on the display sections 105 and 114. If zero is not displayed, the counter reset button 109e is pressed to clear the reversible counters 104, 112 and the contents of the corresponding storage area. In this state, if you press the playback position memory switch 109d to set the track position memory mode and press the record button on the operation panel 109 (not shown), the tape will be fed at the recording speed, and the reversible counter 104 will memorize the tape position in real time. Ru. On the other hand, since the re-autopsy 110 outputs a playback signal at the time of recording, the unrecorded autopsy detection autopsy is performed before the first song is recorded.
The second unrecorded portion of a predetermined length is detected and a count-up pulse is generated. As a result, the contents of the reversible counter 112 become = -1-1, and the contents of the reversible counter 112 and 1D4, that is, the track number (-1) and the tape position of the sentence, can be read by the processing device 1n7aK, as in the case of playback. is stored in the storage area corresponding to the tape identification number "95"K,
As the tape progresses, the correspondence between the song numbers of all the songs and their tape positions is FLAM107.
It is stored in C. As described above, during playback and recording, the correspondence between the song numbers of all songs and their leading tape positions is stored.

Next I/C music selection operation will be explained. In addition, the tape position and track number (contents of reversible counters i34, 112) are determined by the KN corresponding RA at the end of playback, recording, fast forwarding, rewinding, etc.
It is written in the storage area of M1o7c, and even if the cassette tape is ejected, the tape position, track number, and the correspondence between the track number of the first VC and the tape position of the ejected cassette tape. will be deleted KRA
M1o7cx preserved.

Furthermore, at the end of the play, the processing device 107a uses the RAM 10
Copy the contents of 7c to the nonvolatile memory 108 in its entirety, but if you copy the contents of RAM1o7c to the nonvolatile memory IO8 at a predetermined cycle, the latest We memory will be saved even if there is a power outage or power cut. The contents will never be lost.

Now, when selecting music, the cassette tape to be selected is loaded onto the deck. In other words, by the above-mentioned track position IT storage operation, the correspondence between multiple track numbers and their starting tape positions is set to R.
Attach the cassette tape stored in the storage area of AM107C to the deck. Next, the numeric keypad! lllll
Enter the upper cassette tape specific number (15") and then press the appropriate entry key 109b. Pressing the entry key 109b causes the identification number to be entered from the numeric keypad 109a and set in the input register (not shown). 15” is immediately processed by 1n713K
Then, the processor 107a reads the tape position Ta from the storage area of the RAM 1o7c corresponding to the tape identification number "15".

The track number Ma corresponding to the tape position is read out and set in the respective general-purpose registers, and these are also set in the reversible counters 104 and 112K. In this state, if you want to select a song with the desired song number Mt, input the song number ML from the numeric keypad 109a, and then press the song selection start button 109C.
Press. The suppression of the music selection start button 109C is immediately detected by the processing device ID 78K, and the desired music number set in the input register (not shown) is detected by the processing device 107a.
It is set in the general-purpose register by K. Thereafter, the processing device 107a selects the tape position T corresponding to the desired track number MtK.
t is retrieved from the storage area corresponding to the tape identification number "15" and set in the register 113, and a motor start signal M8T is output to the motor drive circuit 116. As a result, the motor drive circuit 116 fast forwards forward or backward depending on the size of the current tape position Ta and the target tape position Tt, and stops when Ta=TtK (music selection complete).
After that, the selected song is played. Furthermore, when the song selection is completed, or even during song selection, the tape position Tt and the song number Ma stored in the inverse counter 101.
When the tape is detected, it is stored in the storage area corresponding to the tape 1 identification number 151' of the RAM 107c, and the current tape position and song selection number Ma are always maintained in the RAM 107c.

As described above, according to the present invention, each cassette tape is distinguished by a unique identification number (name), and a memory header is provided corresponding to each cassette tape, and the tape position, track number, and information are stored in the storage area. ? The correspondence between the track numbers of Jl number of songs and their tape positions is memorized. When selecting a song, input the desired track number, read out the tape position corresponding to the track number, and run the tape to find the current tape position. When the tape position coincides with the desired song number, it can be determined that the third song is completed, so there is no need to rewind the tape when selecting a song, and the desired song can be selected simply by inputting the song number. In addition, in the present invention, when playing, recording, or fast forwarding, the unrecorded part is used as an argument for the track number, and the tape position at that time and the track number are paired and the cassette tape is loaded in the deck. Because I made it memorize in the memory candy area of ?J
On a cassette tape on which I number of songs have been recorded or on a cassette tape f to be recorded, the correspondence between the song number and its tape position can be easily stored while reproducing or recording.

In addition, we tried to input the tape identification number to identify the cassette tape installed in the deck, but this is not always the case. The bump and lt may be identified by a sensor.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a first step for explaining storage contents, and FIG. 3 is a block diagram of an unrecorded portion detection section.
FIG. 4 is a block diagram of the motor drive circuit. 101...Motor, 102...Pulse generator, 10
3... Rotation direction discrimination circuit, 104... Reversible counter, 105... Display section, 107... Computer, 1
07a... Processing device, 107C... RAM, 1o
e... Non-insertable memory, 109... Operation panel, 1
09a...Numeric keypad, 109b...Tape identification number entry key, 109c...Song selection start button, 109
d---Track position H memory switch, 110--Higyu-anatsu, 111--Unrecorded portion detection unit, 112--Reversible counter, 115--Register, 114--Display section,
116...Motor drive circuit patent applicant Senki Saito Procedural amendment ('EJ Zoku) Showa! February 1996, Showa J7 special ty s m z, iz/2'o No. 2, Ken Dη's voice name i) さ) 汰 3 Person making the correction (relationship with 'l) #手ip大Source Moxibustion 8, Amendment Contents> Naruko 61 The statement in the specification of the application is corrected as follows. 1. "1" from page 4, line 15 to line 19, 1 of the specification.
01 (not shown) is a predetermined amount" is deleted and the following sentence is inserted in its place. ``101 is a hub drive shaft that rotates the winding hub, 102 is a hub drive shaft 101 that rotates a predetermined amount.'' 2. Delete ``or stop position'' in the second line of page 6 of the specification. & Add °゛1″ to rNR8 in the 4th line of page 7.
8 (Correct ``1-.''
16b" is corrected to "flip-flop 116b." 5 “Plus pulse +Pj” on page 10, line 15 of the specification
'! r r minus pulse-P”. 6. "Minus pulse -P" from line 16 on page 10 of the specification to line 17 on the same page is corrected to "plus pulse +P." Z From page 11, line 13 to line 1, line 14 of the specification, "If the motor 101 is rotated..." is replaced with "A motor (not shown) is driven to rotate the hub shaft 101." Hub axle 101
"If it rotates," he corrects. a Correct "motor 101" in lines 18 to 19 of page 11 of the specification to read "rotational speed of hub shaft 101." λ “Motor 1” on page 12, line 1 to line 2 of the specification
01...deceleration" is corrected to "The hub axle 101 rotates at the rapid traverse speed, and after the command pulse is discontinued, the hub axle 101 decelerates." 1α In the 12th line of page 16 of the specification, "control is" is corrected to "control is performed." Il, 9)"H'l (1Kg %, LO pullback 11
'n']ri '1ol= (-even v 3 [+
The amount of work done by the office worker is also recorded in i1, 453-

Claims (4)

[Claims] (1) A tape position monitoring means for monitoring the running position of the cassette tape, and a tape position monitoring means provided corresponding to each cassette tape, and for monitoring the tape position of the cassette tape and the number of songs recorded on the face cassette tape. A storage area for storing the correspondence between the track number and its tape number position, a means for inputting or identifying a unique name given to each cassette tape, a playback unit for playing back the recorded audio, and a playback unit for playing the playback output. and an unrecorded portion detecting section that monitors and detects unrecorded portions of a predetermined length or a predetermined time, and recognizes the cassette tape loaded on the deck by the input or identification means, and also determines the tape position on the deck. reads from the storage area corresponding to the cassette tape being played, updates the tape position according to the tape running by the tape position monitoring means, inputs the song selection vcWA number and the track number, and selects the tape according to the track number. A song selection method in a cassette tape recorder or karaoke apparatus, characterized in that the tape position is read out from the storage area, the tape is run, and song selection is completed when the current tape position matches the tape position of a desired song number. (2) During playback, when the unrecorded portion detecting section detects an unrecorded portion, the unrecorded portion is used as an argument to set the track number, and 1) the tape position and track number at that time are input to the cassette installed in the deck. 2. The music selection method according to claim 1, wherein the music selection method comprises storing the music in the storage area of a tape. (3) During recording, when the unrecorded portion detecting section detects an unrecorded portion, the unrecorded portion is counted by H1 and set as a track number, and the tape position and track number at that time are recorded when the tape is loaded on the deck. 2. The music selection method according to claim 1, wherein the music selection method is characterized in that the music is stored in the storage area of a cassette tape. (4) When the unrecorded portion detecting section detects an unrecorded portion during fast forwarding, the unrecorded portion is counted and determined as a track number, and the tape position and track number at that time are recorded on the cassette installed in the deck. A music selection method according to claim (1), characterized in that music selection is performed in the storage area of a tape.