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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0963747 (1997-11-04) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 254 인용 특허 : 7 |
In the present invention, an optical reader is made to commence image capture and decoding when a trigger of the reader is pulled, and to continuously attempt to decode symbols in captured image data until the time the trigger is released. Despite continuously attempting to decode symbols during the
In the present invention, an optical reader is made to commence image capture and decoding when a trigger of the reader is pulled, and to continuously attempt to decode symbols in captured image data until the time the trigger is released. Despite continuously attempting to decode symbols during the entire period in which a trigger is actuated, a reader according to the invention is made so as not to output data messages pertaining to the same symbol more than once during one trigger-actuation period. To this end, a reader operating according to the invention maintains a list of identification strings identifying all symbols which have been successfully decoded since the time the trigger was pulled. When symbols in image data are decoded, identification strings for those symbols are determined and then compared to identification strings previously written to the list. If an identification string for a successfully decoded symbol is not on the list, the reader outputs a data message for the symbol, and adds the identification string to the identification string list.
[ What is claimed is:] [1.] A method for operating a portable trigger-actuated optical reader, said method comprising the steps of:waiting for said trigger to be pulled; andwhile said trigger is pulledcapturing image data;attempting to decode symbols represented in captured image data;determining a
[ What is claimed is:] [1.] A method for operating a portable trigger-actuated optical reader, said method comprising the steps of:waiting for said trigger to be pulled; andwhile said trigger is pulledcapturing image data;attempting to decode symbols represented in captured image data;determining a present identification string for each symbol successfully decoded;comparing each present identification string to identification strings previously written to an identification string list; andwhen a present identification string for a most recently decoded symbol is not on said listoutputting a decoded message for said most recently decoded symbol; andwriting said present identification string to said identification string list.
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