JPH0321981B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for magnetically writing and reading a magnetically striped medium.

Conventionally, magnetic writing and magnetic reading on this type of media was performed by stopping and fixing the media one by one at a fixed position in the pathway and moving the magnetic head, but with this method, it is difficult to read and write a large number of media. This method has the disadvantage of requiring an extremely large amount of time to process, which has been a major problem in improving the efficiency of office processing work.

Therefore, the present invention enables the magnetic head to move back and forth in parallel with the direction of conveyance of the medium, and moves the inserted medium relative to the fixed magnetic head while conveying the inserted medium so that it reaches a predetermined position on the conveyance path when the medium is inserted. A takeover operation is performed by making contact with the medium, and then the transfer is stopped when the medium reaches a predetermined position, and information is transferred to the medium at the stopped position by moving the magnetic head close to and passing the medium. Writes on the magnetic stripe, and after writing and passing through the magnetic stripe of the medium, the magnetic head is reversely moved to pass close to the magnetic stripe to perform a continuation for information checking. It is an object of the present invention to provide a magnetic writing/reading method which eliminates the above-mentioned drawbacks.

Hereinafter, the present invention will be specifically explained based on an embodiment shown in the drawings.

As shown in FIG. 1, the magnetic writing/reading device 1 has a plurality of pairs of transport rollers 3 and 3' that are rotatably provided to sandwich the pathway 2 from both sides. A pulse motor 5 is connected. A guide bar 6 and a drive shaft 7 are provided at a position parallel to the pathway 2, and a slide block 9 is engaged with the bar 6 and shaft 7. A pulse motor 10 is attached to one end of the shaft 7, and the motor 1
By rotating 0 in the forward and reverse directions, the block 9 can be moved appropriately in the directions of arrows A and B. A magnetic head 11 is provided on the block 9 with its tip facing the pathway 2.
A notch 9a is formed in the lower part of the figure. At a position opposite to the notch 9a and corresponding to the home position
Furthermore, an L-shaped bracket 9b protrudes from the block 9, and a sensor 13 consisting of a light emitting part 13a and a light receiving part 13b is provided at a position corresponding to the tip of the L-shaped bracket 9b. There is. Further, a sensor 15 consisting of a light emitting part 15a and a light receiving part 15b is provided on the pathway 2, and the sensor 13 is connected to a second
As shown in the figure, the sensor 15 is connected to the central control circuit 16 and the AND circuit 1 is connected to the circuit 16 at one end.
7 via an amplification circuit 34. circuit 1
6 is connected to an OR circuit 19 and AND circuits 21 and 22, respectively, the output of the AND circuit 17 is input to the OR circuit 19, and the output of the OR circuit 19 is connected to the pulse generation circuit 25 via the determination circuit 23. However, the circuit 25 is further connected to the pulse motor 5 via a media drive circuit 26. The Blangier magnet 12 is connected to the AND circuit 21 via a magnet drive circuit 27, the pulse generation circuit 30 is connected to the AND circuit 22 via a determination circuit 29, and the circuit 30 is connected to a head drive circuit. A pulse motor 10 is connected via 31. On the other hand, as shown in FIG. 1, the medium 32 is entirely formed in the form of a sheet, and a magnetic stripe 32a is formed in the form of a band on a part of its surface.

Since the magnetic writing/reading device 1 has the above configuration, the magnetic stripe 32a of the medium 32
When performing magnetic reading on the magnetic field, the output signal _S1 from the central control circuit 16 changes from "1" to "0" and is output to the OR circuit 19, as shown in FIG. On the other hand, in the case of reading, the output signal _S2 of the circuit 16 is "0", so the output signal _S3 of the AND circuit 17 is always "0", and the circuit 1
9's output signal _S4 becomes "0". Then, the determination circuit 23 drives the pulse generation circuit 25 to generate a pulse.
P ₁ is generated, the pulse motor 5 is driven via the medium drive circuit 26, the roller 3 is rotated in the direction of arrow C, and the medium 32 is inserted into the pathway 2 between the rollers 3 and 3'. Conveyance is started in the direction of arrow A along the line. Also, since the signal S ₂ is "0", the output signals S _{5 and 2} of the AND circuits 21 and 22 are
_S6 is also “0”, and the magnet drive circuit 2
7 does not operate and the plunger 12a of the plunger magnet 12 is inserted into the notch 9 of the slide block 9.
a and the determination circuit 29 does not drive the pulse generating circuit 30, so the pulse motor 10 is also kept in a stopped state, and the block 9, that is, the magnetic head 11 is fixed at the home position X. It is becoming. In this state, by sequentially and continuously conveying the medium 32 in the A direction, the head 1
1 moves relative to the medium 32 in the B direction,
The magnetic stripe 32a comes into contact with the magnetic heads 11 one after another, and the succession operation of the heads 11 is started.
At this time, the output signal S ₇ of the sensor 15 is cut off by the AND circuit 17 because the signal S ₂ is "0", and the output signal S 7 of the sensor 15 is cut off by the AND circuit 17.
2 is the roller 3, 3' independent of the sensor 15.
It is transported in the A direction without stopping.

Next, when performing magnetic writing on the medium ₃₂ , as shown in _FIG . ” becomes “1”. Then sensor 15
When there is no medium 32 and the light from the light emitting section 15a reaches the light receiving section 15b, the signal _S7 is "0".
Therefore, the signal S ₃ of the AND circuit 17 also becomes "0", so the signal S ₄ becomes "0", and the pulse motor 5 is driven by the pulse P ₁ as in the case of takeover. , the medium 32 is transported in the A direction along the pathway 2. The end surface 32b of the medium 32 enters the sensor 15, and until then the light emitting part 15a
When the light reaching the light receiving section 15b is cut off, the signal S ₇ changes from "0" to "1" and the signal S ₃ becomes "1". Then, the signal _S4 of the OR circuit 19 becomes "1", and the determination circuit 23 outputs the signal S4 from the pulse generation circuit 2.
The drive circuit 26 stops the pulse motor 5 from generating the pulse _P1 , and the drive circuit 26 stops the rotation of the pulse motor 5. As a result, the tip 32b of the medium 32 is connected to the sensor 15.
It stops at the position where it enters and is held fixed by rollers 3 and 3'. When the medium 32 stops, the control circuit 16 changes the output signal S ₈ to the AND circuit 21 from “0” to “1”, changes the signal S ₅ to “1”, drives the magnet drive circuit 27, and starts the plunger. Energize the magnet 12 and turn the plunger 1
2a is retreated downward in FIG. 1 to release the engagement with the notch 9a, and then the output signal _S9 to the AND circuit 22 is also changed from "0" to "1",
When the signal _S6 becomes "1", the determination circuit 29 drives the pulse generation circuit 30 to generate the pulse _P2 , and drives the pulse motor 10 via the head drive circuit 31 to drive the block 9, that is, the magnetic head. 11 starts moving from home position X in the direction of arrow A. The head 11 contacts the magnetic stripe 32a of the medium 32, which is held stationary, and begins writing predetermined information into the stripe 32. When the head 11 moves a certain distance in the A direction and the write operation is completed, the head 11 is moved back in the B direction and the contents written in the stripe 32 are read and confirmed. When the head 11 returns _to the home position ”. Then, the control circuit 16 outputs the signal
The rising edge of S ₁₀ is detected, the signal S ₉ and therefore the signal S ₆ are returned to "0", the generation of the pulse P ₂ is stopped via the determination circuit 29, the drive of the motor 10 is stopped, and the head 11 is stopped. . Note that the signal _S10 is the head 1
1 changes from "1" to "0" when it moves in the direction A, but since the circuit 16 only captures the rising edge of the signal _S10 , the circuit 16 will not malfunction. Head 1
1 stops, the signal S ₈ and therefore the signal S ₅ are returned to "0", the energization of the blunger magnet 12 is released via the drive circuit 27, and the blunger 1 is turned off.
2a is engaged with the notch 9a, and the magnetic head 11 is fixed at the home position X. Next, when the signal S ₂ is returned to "0", the signals S ₃ and S ₄ become "0", and the pulse P ₁ is generated again from the pulse generation circuit 25.
The motor 5 is driven and the medium 32, which has been held fixed by the rollers 3 and 3', starts to be conveyed in the A direction again, and when the medium 32 finishes passing through the sensor 15, the signal _S7 becomes "0". Return to medium 32
Writing to ends. Note that the signal S ₂ then returns to "1" again and enters a standby state for the next medium 32.

As explained above, according to the present invention, the medium 3
2, the magnetic head 11 is fixed and the medium 32 is continuously conveyed to perform the reading operation, so there is no need to stop the medium 32 at a fixed position each time the medium 32 is read. It becomes possible to shorten the overall time required for magnetic writing and reading operations, and the efficiency of office processing operations is improved.

[Brief explanation of drawings]

FIG. 1 is a side view showing an example of a magnetic writing/reading device to which the present invention is applied, FIG. 2 is a block diagram showing a control system of the device shown in FIG. 1, and FIG. FIG. 4 is a time chart showing the operation of the block diagram in FIG. 2 during magnetic writing. 11... Magnetic head, 32... Medium, 32a...
...magnetic stripe.

Claims (1)

[Scope of Claims] 1. Information stored on the magnetic stripe by bringing a magnetic head into contact with the magnetic stripe of a medium transported along a conveyance path and moving the two relatively. In the device that reads out the magnetic stripe, then moves both relatively again to write information on the magnetic stripe, and then moves both relatively again to read the written information and check the written information, the magnetic head is It is capable of reciprocating in parallel with the conveyance direction of the medium, and while the inserted medium is being conveyed so as to reach a predetermined position on the conveyance path when the medium is inserted, the reading operation is performed by moving relatively to and coming into contact with a fixed magnetic head. Then, when the medium reaches a predetermined position, the transport is stopped, and information is written on the magnetic stripe by a relative movement of the magnetic head that passes close to the medium with respect to the medium at the stopped position, and further, information is written on the magnetic stripe of the medium. A magnetic writing/reading method characterized in that reading for checking information is performed by passing close to the magnetic stripe by a relative movement of reversing the magnetic head after writing to the magnetic stripe.