The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 1995
Filed:
Sep. 30, 1993
Toshiki Narukawa, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
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.