Smart IC card
First Claim
1. A hand-held electronic circuit card, comprising:
- memory means for storing data;
control means operable in accordance with at least first and second modes, for writing data to and reading data from said memory means;
clock generating means for generating clock pulses;
timepiece means for counting the clock pulses generated by said clock generating means to produce timepiece data;
display means for selectively displaying data from said control means and said timepiece means;
a keyboard having at least first and second keys;
start means for causing said control means to operate in accordance with said first mode wherein said display means displays timepiece data from said timepiece means in response to the operation of said first key; and
mode setting means for causing said control means to operate in accordance with said second mode in response to operation of said second key during display of the timepiece data.
1 Assignment
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Accused Products
Abstract
A hand-held electronic apparatus such as an IC card including a data memory and a CPU has a keyboard and a display. The IC card includes a timepiece circuit which is kept operated. The IC card turns off the display in the standby state in order to save an internal battery. The CPU is also set in a HALT state since no clock signal is supplied thereto. When a start key for activating the IC card is pressed in the HALT state, the CPU is brought to an active state, and timepiece data from the timepiece circuit is automatically displayed on the display. When a numerical key is operated in the timepiece display state, a control mode is turned from the timepiece mode to a calculator mode, and a number corresponding to the pressed numerical key is input at a first digit position. If an account key (7-10) is pressed in the timepiece display state, a transaction mode of the corresponding account is set.
56 Citations
12 Claims
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1. A hand-held electronic circuit card, comprising:
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memory means for storing data; control means operable in accordance with at least first and second modes, for writing data to and reading data from said memory means; clock generating means for generating clock pulses; timepiece means for counting the clock pulses generated by said clock generating means to produce timepiece data; display means for selectively displaying data from said control means and said timepiece means; a keyboard having at least first and second keys; start means for causing said control means to operate in accordance with said first mode wherein said display means displays timepiece data from said timepiece means in response to the operation of said first key; and mode setting means for causing said control means to operate in accordance with said second mode in response to operation of said second key during display of the timepiece data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A hand-held electronic apparatus, comprising:
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memory means for storing data; control means for performing data read/write access to said memory means; timepiece means for counting clock pulses so as to generate timepiece data; display means for selectively displaying data from said control means and said timepiece means; a keyboard having at least a start key; and start means for causing said display means to display timepiece data from said timepiece means in response to an operation of the start key at said keyboard and starting an operation of said control means. - View Dependent Claims (9, 10, 11, 12)
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Specification