Electronic apparatus and method of controlling electronic apparatus
AssigneeFujitsu Limited
InventorsMotohiko Itoh, Shinichi Satoh, Hiroaki Kawai, Ichiro Shinoda, Mitsuo Watanabe
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Abstract
An electronic apparatus having a plurality of states, and including a detection mechanism for detecting an external light and outputting a detection signal indicative of an intensity of the external light, a transition mechanism for making a state transition from a first state to a second state which is different from the first state and vice versa depending on the detection signal, and a varying mechanism for varying a light detection sensitivity of the detection mechanism depending on the detection signal when the state transition is made by the transition mechanism.
Claims7
A bar code reader comprising:
- light emitting means for emitting a light when driven;
- control means for controlling ON/OFF states of said light emitting means;
- scanning means, including a motor, for generating a scanning light from the light emitted from said light emitting means when said scanning means is driven, so that the scanning light enables scanning of a bar code;
- detection means for detecting an external light and outputting a detection signal indicative of an intensity of the external light;
- transition means, responsive to said detection means, for making a state transition from a first state to a second state which is different from the first state and vice versa depending on the detection signal;
- and
- varying means, responsive to said transition means, for varying a light detection sensitivity of said detection means depending on the detection signal when the state transition is made by said transition means,
- said control means being responsive to said detection means and controlling said light emitting means to emit the light at different ON/OFF ratios between the first state and the second state.
Dependencies are inferred from the claim text.