JPS5979449A - Reproduction controller of cassette tape - Google Patents

Abstract

PURPOSE:To control automatically a tape deck by providing an optical detection means which reads out the reproduction control information when a cassette tape is loaded and shifted by an automatic loading mechanism and a processor which controls the reproduction of the cassette tape based on the reproduction control information. CONSTITUTION:When a cassette tape 1 sticks a part 5 to be detected is loaded to a reproduction controller 2, an automatic loading mechanism 16 is actuated to shift the tape 1 along its moving direction 18. In this case, the control information displayed at the part 5 is read out by an optical detection means 13 and given to a processor 6. Therefore a tape type selection circuit 43 delivers a signal corresponding to a chrome oxide tape via the processor 6. Thus a noise reduction circuit 36 is energized. In addition, a display lamp 48 corresponding to the chrome oxide tape on a display operation part 46, a display lamp 50 and a display part 52 are turned on along with a display ''A'' given to the minimum digit 55.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette tape playback control device in which a cassette tape is self-loaded in a tape deck.

Conventionally, control during playback in a tape deck has depended on the type of cassette tape installed in the tape deck and the characteristics of the layer material, such as whether it was recorded via a miscellaneous material reduction circuit, etc.
Depending on the gender, this was mainly done by manual operation. In such a tape deck, the bad switching mode of control was changed by 11 manual operations,
It was a hassle. To avoid this, a control device has been proposed in which a magnetic tape on which control information for playing back the tape deck is written is fixed to the front side of the cassette half of the cassette tape, and the control information is read out using a magnetic head provided on the tape deck. The control device is hexavalent.

The purpose of Misfires 1 and 11 is to solve the problems of the prior art, and to use a control device realized by a microcomputer or the like to control the amount of 1 liter (ill) of the tape deck when each cassette tape is played back. 1. To provide a cassette tape playback control device that is inexpensive.

FIG. 1 is a 1 & 1 simplified block diagram of a cassette tape 1 and a control device 2 according to an embodiment of the present invention. The cassette half 3 of the cassette tape 1 is equipped with a safety piece 4 to prevent erroneous recording.
is confirmed. The tape deck 2 is provided with a processing device ID<6 realized by a microcomputer or the like. The processing device 6 includes a reproduction device 111 device':
Port 7 connected to the valley of il 2 as described below,
'8, 9, 1 +), 1 i, 12t73u74 are included.

The port 7 is connected via a line 14 to an optical detection means 1:3 realized by a reflective type 7 sensor or the like for reading out the 1hII m:u information of the tape deck 2 displayed on the detection target 5. Ru. Port 8 connects to own a-rotating machine 41η16 via line 15.
c. be done. When the loading motor 17 is driven, the inner corner J loading mechanism 16 loads the cassette tape l.
is phased νJ along the direction shown by arrow 18. The optical detection means 13tfi, automatic loading method 11.1
16, the control I1 is operated opposite to the exposed means 5
1 information φj1 is sent to the processing device 6 via line 14.
give to

The file search function 19 is connected to the file search function 19 through the port 9iC line 18, and the file search function 19 is directly connected to @Majesty search sensor 2o. The reel 2 of the cassette tape 1 is detected by this winding diameter search sensor 2o.
The outer diameter, ie, the winding diameter, of the magnetic tape 22 wound around the magnetic tape 22 is detected. As a result, the processing device 6 is required to reproduce the magnetic tape 22 of the cassette tape 1. baud)
10 is a motor control device 25 that controls a motor 23 that rotates a capstan (not shown) of the main control device 2 to the rotating part U, and a motor 24 that rotationally drives a reel stand (not shown) for fast-forwarding and measuring tape. It is connected via the line 26.

27il magnetic hand for playing cassette tape 1
'i: is connected to the equalizer circuit 29 via the line 28. Equalizer circuit 29 is connected to common contact 31 of switch 30. Switch 3° is common contact 31
and individual contacts 32.33. The individual contacts 32 are connected to an amplifier circuit 35 via a line 34 . The individual contacts 33 are connected to the noise reduction circuit 1''4'J36.
7 to the amplifier circuit 35]. jf#l
The I'f*1 circuit 35 receives a power of 39 KJ via line 38.

Boat 1i, processing 1st 6th city IJ 141 +
~N provides a switching signal similar to switching 1 to switch 30 via line 40. port 12
1d, information for adjusting the amount of material is given to the amplifier circuit 35 via the line 41 based on the information from the processor 6.

Port 73 is connected to tape type selection circuit via line 42.
It is connected to A343. This tape Mukuro selection circuit 4
3, according to the control information of the left-to-process 43, the magnetic disk 22
For example, normal tape, ferrochrome tape,
A pair of chromium oxide tapes or metal tapes are selected, and accordingly, the line 44 is valved to output (M number) to the equalizer circuit 29.As a result, in the equalizer circuit 29, the type of magnetic tape 22 is selected. The equalizer characteristics are selected according to the

The port 74 is connected via a line 45 to a display/operation unit 46 provided 1 m in front of the playback control device 20 shown in FIG. The display operation section 46 includes a tape type selection switch 47 for manual operation, an indicator lamp 48 for indicating tape type selection, and a noise reduction circuit 3 for manual DJ operation.
a switch 49 for energizing the noise reduction circuit 36; an indicator lamp 50 for indicating the energization state of the noise reduction circuit 36; a stop/work/direct switch 51 for manual operation; a display section 52 consisting of a seven-segment light emitting diode; Knob 53 for controlling the amount of one stroke in manual stamping operation and cassette tape loading port 54
and so on. The display section 52 consists of four digits,
The most significant digit 55 indicates whether song A or song B on the cassette tape I is being reproduced, and the three least significant digits 56 are displayed as a tape counter indicating the reproduction status of the magnetic tape 22.

FIG. 3 is a circuit diagram showing details of the optical detection means 13 shown in FIG. 1. The optical detection means 13 includes a light emitting element 57 such as a light emitting diode and a light receiving element 58 such as a phototransistor. , the original optical element 57 is the original! of the cassette tape 1! 115' II ('J source) is emitted during power loading. The light from the light emitting element 57 is reflected by the exposure means 5, and this reflected light is split by the light receiving system 58. .At Eikou Seiko 58, a stream of words that were focused on the phrase that was received by the light flows.As a result, line 14 has t,
No. 16 is output according to the amount of sunlight VC.

The fourth diagram is a normal UU diagram of the detected object B1≦5 shown in FIG. He 1 value exit 5 fd, for example, a woman 1 river is made of silver-colored tape 59 placed on the road side of cassette half 3. The tape 59 has a starting position 6o to 7b which can be completely discharged by the output means 13 of the IQ recording optical system 1, and a tape running in a right circle in the scattering movement direction 18 of the cassette tape 1 with a quotient of 1j) mm. Composition 61 to remove 41J from 59
is formed. 1lilJ when playing cassette tape
The iti'J t+I11 samurai on both sides '2 is, for example, 1"m11'id 'd: IJ'Fit part 6 formed by one piece of l, 'J included 61 that is close to each other.
2a, 62b, 62c.

62cl, 62a, 62f, 62g, 62h, 6
2i, (i 2 j, 62 k, 62 l
Or these band portions 62a to 62I! displayed by a combination of

In FIG. 4, the depth 59 of the left edge 63 of the band portion 62a to be detected at which seepage has started has been peeled off as shown by the arrow J' 64 i'. Departure enclosure (6 detected 411)
131 to the right part 62a, that is, the cassette tape l
Track A of cassette tape 1 is on the downstream side in the scattering direction.
The detected part 62b is arranged to indicate that it will be born! L. When displaying that E (, oj or fq) of cassette tape 1 is being played, the tape 59 of the detected band portion 62b is peeled off. A detection band portion 62c is arranged to indicate the type of magnetic tape 22. For example, when the magnetic tape 22 is a chromium tape, the tape 59 is peeled off and the surface of the cassette half 3 is exposed as shown in black. 4 of the magnetic tape 22: Detected band portion 6 that displays h focus
On the right side of 2c, the biasing state 1. of the noise reduction circuit 36 is shown. ! !
A detected band portion 62d to be displayed as M& is arranged. When the noise reduction circuit 36 is not energized, the 4M detection band portion 6
2d tape 59 has been peeled off.

911, -Sho Kosaka time i+%) 36 energization is displayed on the right side 1j11 of 62 d, there is a recording of cassette tape 1 1'l student 11,) I feel /
He detection zone of ζth 3 trees 131 min 62e ~ 62 e or IL
It will be fixed. Temporary tape 59 has been peeled off (fired part)
62g of the black part in the sword 4 figure was set as 1111i ``0'', and the tape 59 was attached directly to the head of the head.
Assuming that 2e and 62f are 1jlill "1", it can be seen that the green stone 1j + raw time of this nonosesoto tape 1 is 30 minutes, as shown in Table 1.

On the right side of the detection band parts 62e to 62g for displaying the recording and playback of the cassette tape 1 in Table 1, there are four detection band parts 6211 for displaying the number of recorded music songs. ~
62k or record n: done. Table 2 includes, as in Table 1,
The relationship between the number of songs and the side 1 production of the detected @ portions 62h to 62 is shown.

Table 2 Therefore, the detected band portions 62h to 6 shown in FIG.
In 2K, you can see that 5 old songs were recorded in song A of cassette tape l.

Is he the one with this number of songs? To the right of the circular band portions 62h to 62, a reading end detection band portion 621 is arranged.

Device j to be detected 1$5 - center line 6 perpendicular to direction of movement 18
5 as a line of symmetry, the branch detection band includes one division 62a to 62.
Playback control of three songs on the cassette tape symmetrically to l (+'r
t+J is displayed at 66 for the detected compound.

When the cassette tape 1 with the 1st river record 5 pasted on it is co-phased with the Tado 11il control device + i'l< 2, the automatic rope ink tsuki a・1′σ16 is activated and the cassette tape 1 moves along the device i4′>Hiν) direction 18. At this time, the optical detection means 13 detects the detected band portions 62 a to 62 l of the detected part 5.
The control displayed on jll information/11no or 1. It is pumped out and fed to the processing device ■Red 6. I wanted to do it, but it was 4.
When the a 19 of the bar exit 5 is surrounded by the exposed parts 62a to 621, the processing device 6 removes the cheese extension horn <the selection turning defect 43> and obtains a layer corresponding to the monolithic chromium tape. The switch 3o connects the common contact 31 and the individual 5th point 33 to energize the low power circuit 36.Furthermore, V(
Display lamps 48 and 50 corresponding to the chromium oxide tape on the display operation section 46, and the lowest digit 55 of the display section 52 display r A and J.

In addition, the number of songs (not shown) is displayed on the cassette tape I.
The number of songs that have been recorded is displayed, and the tape recording and playback direction, such as RC30J or RC120, is displayed in the tape length display section.

In two series of embodiments, the elongation Lμ of the tape 22 is shown in Table 71. tt
t report = l
j One part consists of two tapes: normal tape, ferrochrome tape, Dai IL chrome tape, and metal tape.
It may also represent the emotional field of hIn.

In the above-mentioned embodiment, the detected part 5 was formed using the silver colored tape 59, but in the further embodiment of Kiyo 1'J, when the sumo wrestler Tsutoha 73 is black,
Direct wave 4, output, ;d at predetermined intervals on cassette half 3
A portion may be painted 11'1□1 using a white paint pen.

In addition, other examples of Jul are: He 1 Missing City 5
Surname 21・Me-t4・jlj 1lliJ 1+DI f
sr 'in' K k, processing 14 it>j 6
Nijo S”: J'd knee LJ, then, from boat 12 through line 41 to Jfi A once 1IvJ: 35V
It may also be given to this iii'J tIIil lrJ issue.

As mentioned above, since the cassette tape Ensei 11jt4iI]l information is displayed on the cassette half, the 1% Raw 11iIJ itill when playing the cassette tape is It! 11. I.J.
fRJ K line;':l Uko(!: Ka”'C@, Katsuyasu 1 song cassette tape playback 11i1J Irt
l device d can be r4.

[Brief explanation of the drawing]

An example of cassette tape 1 and tape deck 2 of ``Mourning 1: Unfinished'' 1 lu? f block diagram,・
Display operation of A52 diagram &, J, Funeral diagram 1? The stop diagram of jlS 46, FIG. 3 is a circuit showing the details of 1JII of 11th/I optical < 1α output/minus 13/J1 41st. <I l:J:,
', (B) is a front view of the detected part 5 in the figure. Cassette table, 2... tape deck, 3... cassette half, 5... detected part, 6... processing device rt.
, 7-12, 7: (, 74... boat, 13 - optical detection means, 16... self-immediate J loading Tsuki irai, 36
...1M Changf's gang 1IIs14;3...Tape seed cultivation selection time 1st, 46...Display operation section, 62a-62f
, 66... Partial agent for the detected band Patent attorney Kei Shikei Figure 1 Figure 2 Figure 3

Claims (1)

[Scope of Claims] In a cassette tape playback control device in which a cassette tape is loaded and cut 4 times by a loading mechanism, a light reflection value is provided at the cassette half next time to represent playback control σ1j information. at least change in size”f
The detected fli 14 has fj'ii portions arranged in the mounting movement direction h, and the cassette tape has its own mJ
Loading'? When the equipment is moved by 'r+II, an optical detection means that faces the country to be tested reads out the playback control information listed in N11, and performs the playback operation of the cassette tape based on the playback control information. 1I4I processing device;