Registers – Coded record sensors – Particular sensor structure
Patent
1993-09-30
1995-08-01
Shin, Christopher B.
Registers
Coded record sensors
Particular sensor structure
395283, 364237, 3649294, 364DIG2, G06K 1900
Patent
active
054381851
ABSTRACT:
An electronic apparatus including a card connector to which an IC card is connectable and which has a reference potential terminal for connection to a ground terminal of the IC card, and further including a control portion capable of sending and receiving signals to and from the IC card through the card connector and having a same reference potential as the main frame of the apparatus. A circuit is provided for connecting the reference potential terminal of the card connector to the main frame, without the control portion being connected therebetween. The control portion may uses a CPU which requires an acknowledge signal indicative of completion of data transfer to or from the IC card, to continue the operation. In this case, a signal generator is provided for generating the acknowledge signal in response to a card-insertion signal generated upon connection of the IC card to the card connector and a data-transfer signal generated when the data transfer occurs.
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Brother Kogyo Kabushiki Kaisha
Shin Christopher B.
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