DATA TRANSMISSION TO OPTICAL TERMINALS
First Claim
Patent Images
1. A method of transmitting information from a handheld device to a terminal, the method comprising:
- encoding the information as a barcode pattern;
generating the barcode pattern on a display comprised by the handheld device;
periodically modulating a size of the barcode pattern on the display while maintaining internal relative dimensions within the barcode pattern; and
displaying the periodically modulating barcode pattern to an optical reader comprised by the terminal.
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Abstract
Methods are disclosed for transmitting information from a handheld device to a terminal. The information is encoded as a barcode pattern. The barcode pattern is generated on a display of the handheld device. A size of the barcode pattern is periodically modulated on the display while maintaining internal relative dimensions within the barcode pattern. The periodically modulating barcode pattern is displayed to an optical reader of the terminal.
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Citations
12 Claims
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1. A method of transmitting information from a handheld device to a terminal, the method comprising:
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encoding the information as a barcode pattern; generating the barcode pattern on a display comprised by the handheld device; periodically modulating a size of the barcode pattern on the display while maintaining internal relative dimensions within the barcode pattern; and displaying the periodically modulating barcode pattern to an optical reader comprised by the terminal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A handheld device comprising:
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a display screen; and a processor coupled with the display screen, the processor having; instructions to encode information as a barcode pattern; instructions to generate the barcode pattern on the display screen; instructions to periodically modulate a size of the barcode pattern on the display screen while maintaining internal relative dimensions within the barcode pattern; and instructions to display the periodically modulating barcode pattern to an optical reader comprised by a terminal to transmit the information from the handheld device to the terminal. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification