Optical bar code reader
First Claim
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1. An optical bar code reader which selectively operates in a coarse scanning mode and a fine scanning mode for reading a bar code label, said optical bar code reader comprising:
- detection means for detecting the kind of said bar code label;
determination means for selectively developing a first control signal and a second control signal in response to an output signal of said detection means; and
control means for selectively placing the optical bar code reader in said coarse scanning mode in response to said first control signal, and in said fine scanning mode in response to said second control signal.
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Abstract
An optical bar code reader includes a detection system for detecting a large article on which a standard type bar code label is disposed, and a small article on which a reduced type or truncated type bar code label is disposed. When the large article is detected, the optical bar code reader is automatically placed in a coarse scanning mode. When the small article is detected, the optical bar code reader is automatically placed in a fine scanning mode.
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4 Claims
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1. An optical bar code reader which selectively operates in a coarse scanning mode and a fine scanning mode for reading a bar code label, said optical bar code reader comprising:
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detection means for detecting the kind of said bar code label; determination means for selectively developing a first control signal and a second control signal in response to an output signal of said detection means; and control means for selectively placing the optical bar code reader in said coarse scanning mode in response to said first control signal, and in said fine scanning mode in response to said second control signal. - View Dependent Claims (2, 3, 4)
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Specification