Instant portable bar code reader
First Claim
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1. A battery-powered, code reading system comprising:
- a decoder unit having a light source for directing light toward a code to be read, a sensor for receiving light reflected from the code and for generating therefrom an electrical code signal, and a processor for decoding the electrical code signal into decoded data and for communicating the decoded data; and
a terminal unit operatively coupled to the decoder unit, the terminal unit having a processor for receiving the decoded data from the processor of the decoder unit, the decoder unit being responsive to at least one signal from the terminal unit for initiating a code reading operation.
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Abstract
An improved bar code reader unit. The bar code is hand-held and has improved focussing and illumination structure.
190 Citations
53 Claims
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1. A battery-powered, code reading system comprising:
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a decoder unit having a light source for directing light toward a code to be read, a sensor for receiving light reflected from the code and for generating therefrom an electrical code signal, and a processor for decoding the electrical code signal into decoded data and for communicating the decoded data; and a terminal unit operatively coupled to the decoder unit, the terminal unit having a processor for receiving the decoded data from the processor of the decoder unit, the decoder unit being responsive to at least one signal from the terminal unit for initiating a code reading operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A power-saving code reading system comprising:
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a decoder unit having a sensor for generating an electrical signal in response to light received by the sensor reflected from a code, and a processor for decoding the electrical signal into decoded data and for communicating the decoded data; a terminal unit having a processor for receiving the decoded data, the decoder unit being responsive to at least one signal from the terminal processor unit for initiating a code reading operation; and a battery supply for the decoder unit and the terminal unit, the decoder unit using operating power from the battery supply only as needed for performing a code reading operation and for communicating decoded data in order to conserve battery power for the terminal unit. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. A battery-powered code reader unit comprising:
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a light source for directing light toward a code to be read; a detector for receiving light reflected from the code and for generating therefrom an electrical signal; and a processor for decoding the electrical signal into decoded data and for communicating the decoded data to a portable host processor, the processor being responsive to a signal from the portable host processor for initiating a code reading operation. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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38. A battery-powered, code reading system comprising:
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a light source for directing light toward a code to be read; a detector for receiving light reflected from the code and for producing an electrical signal therefrom; a first processor for decoding the electrical signal into decoded data and for communicating the decoded data; and a second processor communicatively coupled to the first processor for receiving the communicated decoded data, the first processor being responsive to a signal from the second processor for initiating a code reading operation. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A method of conserving power in a battery powered, code reading system having a light emitter, a detector, a first processor and a second processor, the method comprising the steps of:
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receiving by the first processor from the second processor a signal for initiating a code reading operation; emitting by the light emitter light toward a code; receiving by the detector light reflected back from the code; producing by the detector an electrical signal from the reflected light; decoding by the first processor the electrical signal into decoded data; communicating by the first processor the decoded data to the second processor; receiving by the second processor the decoded data; and entering by the first processor a low power mode.
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Specification