Appeal No. 2004-0297
Application No. 09/265,451
describes the external features and internal circuitry of the
card:
FIG. 1 shows the outer appearance of a
multifunctional IC card used, for instance, as a credit
card, and being an example of a portable electronic
apparatus according to the present invention. This IC
card is designed such that it can be used both in on-
line and off-line modes. For example, the IC card has a
transaction function by means of which it can perform
transactions in relation to a plurality of accounts
(available as, e.g., a plurality of types of credit card
and cash card), a time-piece function for displaying
time-related data including the date and the time, a
calculation function capable of executing at least four
operations; and an electronic notebook function for
storing and reading out addresses, names, phone numbers,
and the like.
FIG. 1 shows card main body 1 which can be
constituted by, for example, a thin plastic board of
rectangular shape. Card main body 1 includes contact
section 3, which is electrically connected to integrated
circuit (IC) 2 buried in main body 1, for electrically
communicating with a terminal device (not shown) in the
on-line mode, liquid crystal display section 4 for
displaying input/output data, time-related data, and the
like, and keyboard 5, all of these units being arranged
at predetermined positions on the front surface of main
body 1. Card main body 1 additionally contains battery
6 for supplying a power source voltage.
Keyboard 5 includes account keys 7, 8, 9, and 10
for designating an account; numeric keys 11; addition
key 12, subtraction key 13, division key 14, and
multiplication key 15, these being the four-operation
keys; decimal key 16; equal key 17; and the like.
Account key 7 designates a first operation
(processing) for a first account (e.g., account data of
a first credit company), account key 8 designates a
second operation for a second account (e.g., account
data of a second credit company), account key 9
designates a third operation for a third account (e.g.,
account data of a first bank), and account key 10
4
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