Registers – Coded record sensors – Particular sensor structure
Patent
1988-05-13
1989-07-18
Pitts, Harold I.
Registers
Coded record sensors
Particular sensor structure
235493, G06K 708
Patent
active
048496162
ABSTRACT:
The present invention discloses a card reading system for reading the recorded content of data recorded at least on one of the front and rear surfaces of a magnetic card including recording regions thereon. A first readout head reads the recording region provided on the front surface, a second readout head for reading the recording region provided on the rear surface, a first signal line for feeding a first readout signal from the first readout head, a second signal line for feeding a second readout signal from the second readout head, a first switch provided on the first signal line, a second switch provided on the second signal line, a circuit for designating priority for any of the first and second read signals. A priority changeover circuit changes the switching mode of the first and second switch means so that only the designated readout signal is output by the priority designating circuit when the first and second readout signals are input or when the signal corresponding to the designated readout signal is input and the readout signal is also ouptut when a readout signal other than the signal corresponding to the designated readout signal is input.
REFERENCES:
patent: 4256956 (1981-05-01), Hopkinson
Pitts Harold I.
Sharp Kabushiki Kaisha
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