JPS6236291B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a manually traveling type magnetic card reader that transmits and receives information between a magnetic card and a magnetic head by manually traveling a magnetic card for transmitting and receiving information along a magnetic card path. This is related to the improvement of

In conventional manual magnetic card readers, the magnetic card is manually moved at a speed ranging from about 100 cm/sec to about 80 cm/sec, which is necessary to record information correctly. Furthermore, the recording density of information recorded on the magnetic card is kept constant based on a clock signal output in synchronization with the rotation of the patrol roller or the like.

If you manually move the magnetic card within this speed range to send and receive information,
The recording density of information recorded on a magnetic card is kept constant, and information can be sent and received reliably. However, in conventional manual-travel type magnetic card readers, the operator manually travels the magnetic card. , magnetic cards were often run outside this range of running speeds.

With conventional manual magnetic card readers, if the magnetic card is moved too fast,
For example, if a magnetic card is run at a speed exceeding approximately 1 meter/second, the recording conditions cannot be met due to the rise characteristics of the magnetic head or the circuit characteristics of the recording circuit, and the information This had the disadvantage that the exchange of information was not carried out accurately.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a means for setting in advance a traveling speed that does not impede the exchange of information, that is, an allowable speed, and a magnetic card card. An object of the present invention is to provide a manually traveling type magnetic card reader which issues a warning to an operator when the traveling speed of the vehicle exceeds the permissible speed, thereby allowing the operator to send and receive information accurately.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an output means for outputting a clock signal in synchronization with the rotation of a patrol roller (not shown), and is comprised of a magnetic head, a photo sensor, or the like.

2 is an amplification/shaping circuit, and the clock signal outputted from the output means 1 is input to this amplification/shaping circuit 2, where it is amplified and shaped. The rectangular wave shown in FIG. 2A is an amplified and shaped clock signal. In this rectangular wave, the width of the high-level potential becomes denser as the rotation speed of a patrol roller (not shown) rotated by the running of the magnetic card becomes faster. Since the rotational speed of the patrol roller is proportional to the running speed of the magnetic card, the rectangular wave (second wave
A) in the figure corresponds to the running speed of the magnetic card.

The monostable multivibrator 3 generates a signal every time the potential of the rectangular wave shown in A in FIG.
A high-level potential outputs a rectangular wave with a predetermined width (see RO in FIG. 2). The rectangular wave shown in FIG. Hereinafter, the rectangular wave shown in FIG. 2B will be referred to as the allowable speed signal.

Then, the AND circuit 4 includes an amplifying/shaping circuit 2.
The square wave output from the flip-flop circuit 5 (see A in Figure 2) and the output signal output from the output terminal of the flip-flop circuit 5 (see E in Figure 2)
The AND circuit 4 has a high potential when both the rectangular wave shown in A of FIG. 2 and the output signal shown in E of FIG. 2 are at a high level potential. The output signal (see C in FIG. 2) is outputted to the input terminal L of the flip-flop circuit 5. The output signal shown in FIG. 2C corresponds to the running speed of the magnetic card, similar to the rectangular wave shown in FIG. 2A. Hereinafter, the output signal shown in C of FIG. 2 will be referred to as the traveling speed signal. It should be noted that the time from the rise to the fall of the last pulse (X-X point) of the traveling speed signal shown in FIG. 2C is instantaneous compared to other pulses.

On the other hand, the flip-flop circuit 5 is reset at the rising edge of the output signal (not shown) from the magnetic card detection sensor 6, and the potential of the output signal (see D in FIG. 2) output from the output terminal Q. is at a low level, and the potential of the output signal outputted from the output terminal (see E in FIG. 2) is at a high level.

That is, in the flip-flop circuit 5, the potential at the output terminal Q becomes low level and the potential at the output terminal becomes high level due to the reset.

The flip-flop circuit 5 has an input terminal D of the flip-flop circuit 5 inputted with the allowable speed signal shown in FIG. When becomes high level, the potential at the output terminal Q of the flip-flop circuit 5 becomes high level and the potential at the output terminal becomes low level.

Note that 7 is means for warning that the running speed of the magnetic card exceeds the permissible speed, and the input terminal of this warning means 7 is connected to the output terminal Q of the flip-flop circuit 5.

Further, 8 is an AND circuit having a function of stopping the recording operation of the magnetic card reader, and the input terminal of this AND circuit 8 is connected to the output terminal of the amplifying/shaping circuit 2 and the output terminal of the flip-flop circuit 5. On the other hand, the output terminal of this AND circuit 8 is connected to the recording circuit 9.
It is connected to.

Hereinafter, the operation of the manually operated magnetic card reader according to the present invention will be explained.

When a magnetic card is inserted into the magnetic card path, the magnetic card detection sensor 6 sets the potential of the output terminal Q of the flip-flop circuit 5 to a low level and the potential of the output terminal to a high level.

After that, when the magnetic card is run, a clock signal is output from the output means 1, and is amplified and shaped by the amplification/shaping circuit 2, becoming a rectangular wave shown in FIG. It is output from the shaping circuit 2.

When the running speed of the magnetic card is within the permissible speed, a high-level potential is applied to the input terminal of the AND circuit 8, so the rectangular wave shown in A of FIG. 2 passes through the AND circuit 8. The recording circuit 9 is reached. That is, information is recorded at a constant density on the magnetic card via the recording circuit 9. Further, since the potential of the output terminal Q remains at a low level, no warning is issued by the warning means 7.

If the running speed of the magnetic card increases and the running speed exceeds the allowable speed (point X-X in Figure 2),
After the potential at the input terminal D of the flip-flop circuit 5 becomes high level, the potential at the input terminal L becomes high level, so the potential at the output terminal Q of the flip-flop circuit 5 becomes high level and the potential at the output terminal becomes low level. level.

Since the potential at the output terminal becomes a low level, the potential at the input terminal of the AND circuit 8 becomes a low level, and therefore the passage of the rectangular wave shown in FIG. 2A is blocked. That is, since the rectangular wave shown in FIG. 2A is not input to the recording circuit 9, the recording operation is stopped.

Furthermore, since the potential at the output terminal Q becomes high level, the warning means 7 issues a warning to the operator.

Note that when the running speed of the magnetic card exceeds the allowable speed, the potential at the output terminal becomes low level, the potential at the output terminal of the AND circuit 4 becomes low level, and the potential at the input terminal L of the flip-flop circuit 5 becomes low level. Since it is always maintained at a low level, the potential at the output terminal Q of the flip-flop circuit 5 remains at a high level, and the potential at the output terminal remains at a low level.

After this, when you reinsert the magnetic card into the magnetic card reader again, the flip-flop circuit 5
is reset, and the flip-flop circuit 5 is reset to a state for determining whether or not the running speed of the magnetic card exceeds the permissible speed.

In this embodiment, the running speed of the magnetic card is detected using means for outputting a clock signal,
Although the configuration is configured to obtain a traveling speed signal corresponding to this traveling speed, the essential points are a speed detection means for detecting the traveling speed of the magnetic card and outputting a traveling speed signal corresponding to this traveling speed, and a magnetic card. and a permissible speed output means that sets a permissible speed for the magnetic card and outputs a permissible speed signal corresponding to the permissible speed, and compares these permissible speed signals with the traveling speed signal and determines whether the traveling speed of the magnetic card is the permissible speed. The manual magnetic card reader may be provided with a comparison/determination means for determining whether or not it is within the range.

Although this embodiment has been described only for the case of recording information, it can also be applied to the case of reproducing information. However, when reproducing information, the input signal input to the monostable multivibrator 3 must be a self-clock signal.

As explained above, the present invention makes it possible to determine whether or not the running speed of the magnetic card exceeds the allowable speed, so that recording abnormalities or reproduction errors due to excessive running speed of the magnetic card can be prevented. .

Furthermore, since the structure is configured to warn that the magnetic card is being operated too quickly, the operator can operate the magnetic card reader with peace of mind.

[Brief explanation of the drawing]

Fig. 1 is a block circuit diagram of the magnetic card reader according to the present invention, and Fig. 2 is a time chart of the output signal. C shows the output signal output from the AND circuit, D shows the potential level at the output end of the flip-flop circuit, and E shows the potential level at the output end of the flip-flop circuit. Means, 2... Width expansion/shaping circuit, 3... Monostable multivibrator, 4...
...AND circuit, 5...Flip-flop circuit, 6
. . . Magnetic card detection sensor, 7 . . . Warning means, 8 . . . AND circuit, 9 . . . Recording circuit.

Claims (1)

[Scope of Claims] 1. A manually running magnetic card reader that transmits and receives information between a magnetic card and a magnetic head by manually running a magnetic card for transmitting and receiving information along a magnetic card path, comprising: Speed detection means for detecting the running speed of the magnetic card from pulses of a clock signal output in synchronization with the rotation of a roller that rotates as the card moves, and outputting a running speed signal corresponding to this running speed. and an allowable speed signal output means that outputs an allowable speed signal corresponding to a preset allowable speed, and compares the running speed signal with the allowable speed signal, and compares the running speed of the magnetic card with the allowable speed. 1. A manually traveling type magnetic card reader, characterized in that a manual magnetic card reader is provided with a comparison and determination means for determining whether or not the number of cards is within the same range. 2. The manually traveling magnetic card reader according to claim 1, wherein the recording operation of the manually traveling magnetic card reader is stopped by the output signal of the comparing and determining means. 3. The manually running magnetic card reader according to claim 1, wherein the output signal of the comparing and determining means is used to warn that the running speed of the magnetic card is outside the permissible speed. .