Back to results
US 4,754,418 AGranted
Combined electronic calculator and credit card
AssigneeCasio Computer Co., Ltd.
InventorKazuya Hara
Life of this patent
Estimating the term…
Abstract
A key input unit, a display unit and a solar cell are arranged on one surface of a card-like electronic calculator. This surface serves as an electronic calculator. The outer shape of the card-like electronic calculator is the same as that of a credit card. Furthermore, a magnetic stripe portion on which predetermined data is recorded, and embossed portions for displaying information are formed on the other surface of the calculator. Therefore, the calculator also serves as a credit card.
Claims18
Card-like electronic apparatus comprising:
- an electronic apparatus module means, which has a key input means for inputting calculation data, an electronic circuit means for receiving a key operation signal from said key input means so as to perform a calculation operation in response to the key operation signal, and a display unit for displaying a calculation result of said electronic circuit means responsive to an output signal from said electronic circuit means;
- a surface casing means covering one surface of said electronic apparatus module means and having a sheet member which is flat and including an operating surface for supplying a key operation signal to said key input means;
- and
- a credit card section having a non-magnetic metal plate supporting the other surface of said electronic apparatus module means, and a sheet member adhered to said non-magnetic metal plate and having a magnetic stripe portion on which predetermined magnetic identification data is recorded.
1 more element
Card-like electronic apparatus comprising:
- an electronic apparatus module means including a key input means for inputting calculation data, an electronic circuit means for receiving a key operation signal from said key input means so as to perform a calculation operation in response to the key operation signal, and a display unit for displaying a calculation result of said electronic circuit means responsive to an output signal from said electronic circuit means;
- a surface casing means covering one surface of said electronic apparatus module means and having a sheet member which is flat and including an operating surface for supplying a key operation signal to said key input means;
- sheet structure means for supporting said electronic apparatus module means and having a stripe-shaped cavity;
- a non-magnetic polymer filler for filling said cavity of said sheet structure means;
- and
- a magnetic stripe means on which predetermined magnetic identification data is recorded, said magnetic stripe means being formed on said sheet structure means in alignment with said stripe-shape cavity.
3 more elements
Dependencies are inferred from the claim text.