Magnetic Recording Medium Processing Device and Control Method of the Same
First Claim
1. A magnetic recording medium processing device for use with a magnetic recording medium comprising a magnetic strip, the magnetic recording medium processing device comprising:
- a detection mechanism structured to detect the magnetic recording medium when inserted into or discharged from an insertion opening;
a pre-head structured to slide on the magnetic strip formed on said magnetic recording medium to read magnetic data;
a shutter structured to open and close in response to the detection result of said detection mechanism;
a card processor structured to process magnetic information recorded on said magnetic recording medium; and
a magnetic field generating device comprising;
a magnetic field generator structured to generate a magnetic field by a resonance unit; and
a drive control circuit structured to control driving of said magnetic field generator;
wherein said drive control circuit comprises;
a drive power supply structured to supply a drive voltage,a reference potential circuit; and
a resonance drive circuit structured to drive said resonance unit;
said resonance unit comprises a resonance circuit in which an inductor and a capacitor are connected between a first node and a second node, and said resonance unit is structured to receive said drive voltage at said first node, and resonate, while said second node is connected to said reference potential circuit, to generate a magnetic field; and
said resonance drive unit comprises a drive switch element which is connected between said second node at said resonance unit and said reference potential circuit and is to be switched between a conducting state and a non-conducting state depending on the control signal to switch the connection status of said second node at said resonance unit and said reference potential circuit between a connected state and a disconnected state.
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Accused Products
Abstract
A device comprising a detection mechanism to detect a medium; a pre-head to slide on a magnetic strip formed on the medium to read magnetic data; a shutter that opens and closes in response to the result of the detection mechanism; a card processor to process information recorded on the medium; and a magnetic field generating device which may include a magnetic field generator to generate a magnetic field by a resonance unit; and a drive control circuit to control driving of the magnetic field generator. The drive control circuit may include a power supply, a reference potential circuit, and a resonance drive circuit.
9 Citations
15 Claims
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1. A magnetic recording medium processing device for use with a magnetic recording medium comprising a magnetic strip, the magnetic recording medium processing device comprising:
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a detection mechanism structured to detect the magnetic recording medium when inserted into or discharged from an insertion opening; a pre-head structured to slide on the magnetic strip formed on said magnetic recording medium to read magnetic data; a shutter structured to open and close in response to the detection result of said detection mechanism; a card processor structured to process magnetic information recorded on said magnetic recording medium; and a magnetic field generating device comprising; a magnetic field generator structured to generate a magnetic field by a resonance unit; and a drive control circuit structured to control driving of said magnetic field generator; wherein said drive control circuit comprises; a drive power supply structured to supply a drive voltage, a reference potential circuit; and a resonance drive circuit structured to drive said resonance unit; said resonance unit comprises a resonance circuit in which an inductor and a capacitor are connected between a first node and a second node, and said resonance unit is structured to receive said drive voltage at said first node, and resonate, while said second node is connected to said reference potential circuit, to generate a magnetic field; and said resonance drive unit comprises a drive switch element which is connected between said second node at said resonance unit and said reference potential circuit and is to be switched between a conducting state and a non-conducting state depending on the control signal to switch the connection status of said second node at said resonance unit and said reference potential circuit between a connected state and a disconnected state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control method for a magnetic recording medium processing device for use with a magnetic recording medium comprising a magnetic strip, the magnetic recording medium processing device comprising which comprises a detection mechanism structured to detect the magnetic recording medium which is inserted into or discharged from an insertion opening, a pre-head structured to slide on the magnetic strip formed on said magnetic recording medium to read magnetic data, a shutter structured to open and close in response to the detection result of said detection mechanism, a card processor structured to process magnetic information recorded on said magnetic recording medium, and a magnetic field generating device comprising a magnetic field generator structured to generate a magnetic field with a resonance unit which comprises a resonance circuit, in which an inductor and a capacitor are connected between a first node and a second node, and a drive control circuit structured to control driving of said magnetic field generating unit, wherein said drive control circuit of said magnetic generating device comprises a drive power supply structured to supply a drive voltage, a reference potential circuit, a resonance drive circuit comprising a drive switch element which is connected between said second node at said resonance unit and said reference potential circuit, and is to be switched between the conducting state and the non-conducting state in response to a control signal to switch the connection status of said second node at said resonance unit and said reference potential circuit between a connected state and a disconnected state, and a discharge drive unit comprising a first switch element which is connected between said first node at said resonance unit and a discharge potential circuit and is to be switched between the conducting state and the non-conducting state in response to a magnetic field generation halt signal to switch the connection status of said first node at said resonance unit and said discharge potential circuit between the connected state and the disconnected state;
- said control method comprising;
switching said first switch element to the conducting state at the time of halting the magnetic field generation when controlling the magnetic field generation halt at said magnetic recording medium processing device. - View Dependent Claims (10, 11, 12, 13, 14, 15)
- said control method comprising;
Specification