[특허]Fuzzy logic barcode reader

Fuzzy logic barcode reader 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06K-007/10
출원번호	US-0118218 (1993-09-09)
발명자 / 주소	Ziemacki Michael S. (De Bary FL) Basehore Paul M. (Sanford FL)
출원인 / 주소	American NeuroLogix, Inc. (Sanford FL 02)
인용정보	피인용 횟수 : 65 인용 특허 : 0

초록 ▼

An arrangement (apparatus and method) using fuzzy logic for determining the ratios of barcode elements with respect to a reference barcode element. A barcode interface outputs width data for the reference barcode element and the other barcode elements of the barcode pattern in accordance with a predetermined barcode format. A latch array latches the width data of the reference barcode element and supplies the reference width data and a divided value of the reference width data to a fuzzy microcontroller as center and width data for a fuzzy membership function, respectively. The latch array also latches the barcode element width data from the barcode interface, divides the barcode element width data by a set of predetermined ratios, and outputs the quotient data to the fuzzy microcontroller. Each quotient data corresponding to one of the ratios is fuzzified by determining the distance of the crisp input from the center of the membership function and linearly complementing the distance with respect to the width of the membership function. The quotient data that has the highest membership value is deemed to correspond to the winning ratio. The fuzzy microcontroller uses rule-based logic that enables code recognition of the barcode scanner on the basis of successive determined ratios, as well as control of external devices in response to the determined ratios.

대표청구항 ▼

An apparatus for determining a ratio of a barcode element relative to a reference barcode element in response to a barcode scanner signal representing a scanned barcode pattern, said scanned barcode pattern comprising said barcode element and said reference barcode element according to a predetermined format, the apparatus comprising: means for identifying said reference barcode element from said barcode scanner signal in accordance with said predetermined format; means for outputting membership function center and width data in accordance with said identified reference barcode element; and means for determining said ratio of said barcode element from a set of predetermined ratios, said determining means comprising: means for dividing a width of said barcode element by each of said ratios and outputting a corresponding set of quotient data, means for comparing each of said quotient data to at least one membership function having a center and width defined by said membership function center and width data from said outputting means, respectively, said membership function having a predetermined linear slope, said comparing means comprising first means for determining a distance of said each quotient data from said center of said membership function and second means for linearly complementing each of said distances in accordance with said width of said membership function, said complemented distances indicating a membership value of said corresponding quotient data to said membership function, and means for selecting one of said ratios as said ratio of said barcode element in response to said membership values of said corresponding quotient data, said membership value corresponding to said one of said ratios having a maximum value relative to said membership values from said second means.

이 특허를 인용한 특허 (65)

Meier, Timothy; Longacre, Jr., Andrew; Hawley, Thomas; Pettinelli, John; Hussey, Robert M., Adaptive optical image reader.
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Iwaguchi,Isao; Miyazawa,Hideo; Watanabe,Mitsuo; Yamazaki,Kozo; Ohkawa,Masanori, Bar-code reader and method of reading bar-code.
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O'Hagan Timothy P. ; Wang Ynjiun P. ; Wall Daniel G., Dataform reader including dual laser and imaging reading assemblies.
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Meier, Timothy P.; Hawley, Thomas P.; Longacre, Jr., Andrew; Hussey, Robert M., Dual-tasking decoder for improved symbol reading.
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Chu John B. (Fort Myers FL) Ju Paul P. (Fort Myers FL) Wang Ynjiun P. (Fort Myers FL), Extended working range dataform reader including fuzzy logic image control circuitry.
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Ju Paul P. ; Wang Ynjiun P., Extended working range dataform reader with reduced power consumption.
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Barber, Charles P.; Gerst, Carl W.; Smith, George S.; Hussey, Robert M.; Gardiner, Robert C.; Pankow, Matthew W., Imaging apparatus having imaging assembly.
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Barber, Charles P.; Gerst, Carl W.; Smith, George S.; Hussey, Robert M.; Gardiner, Robert C.; Pankow, Matthew W., Imaging apparatus having imaging assembly.
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Barber, Charles P.; Gerst, III, Carl W.; Smith, II, George S.; Hussey, Robert M.; Gardiner, Robert C.; Pankow, Matthew W., Imaging apparatus having imaging assembly.
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Barber, Charles P.; Gerst, III, Carl W.; Smith, II, George S.; Hussey, Robert M.; Gardiner, Robert C.; Pankow, Matthew W., Imaging apparatus having imaging assembly.
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Barber, Charles P.; Gerst, III, Carl W.; Smith, II, George S.; Hussey, Robert M.; Gardiner, Robert C.; Pankow, Matthew W., Imaging apparatus having plurality of operating states.
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Wang, Ynjiun P.; Deng, Shulan, Indicia reading terminal including frame quality evaluation processing.
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Wang, Ynjiun P.; Deng, Shulan, Indicia reading terminal including frame quality evaluation processing.
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Wang, Ynjiun P.; Deng, Shulan, Indicia reading terminal including frame quality evaluation processing.
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Wang, Ynjiun P., Low power multi-core decoder system and method.
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Wang, Ynjiun P., Low power multi-core decoder system and method.
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Wang, Ynjiun P., Low power multi-core decoder system and method.
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Wang, Ynjiun P., Low power multi-core decoder system and method.
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Longacre ; Jr. Andrew, Method and apparatus for capturing a decodable representation of a 2D bar code symbol using a hand-held reader having a.
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Longacre, Jr.,Andrew; Hussey,Robert M.; Pidhirny,John M., Method and apparatus for reading decodable indicia.
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Longacre, Jr.,Andrew; Ehrhart,Michael A.; Koziol,Thomas J.; Hussey,Robert M.; Parker,James A., Optical reader comprising illumination assembly and solid state image sensor.
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Longacre, Jr., Andrew; Hussey, Robert M.; Pidhirny, John M., Optical reader having image sensor for reading decodable indicia.
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Longacre, Jr., Andrew; Hussey, Robert M.; Pidhirny, John M., Optical reader having image sensor for reading decodable indicia.
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Barber,Charles P.; Gerst, III,Carl W.; Smith, II,George S.; Hussey,Robert M.; Gardiner,Robert C.; Pankow,Matthew W., Optical reader having partial frame operating mode.
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Barber,Charles P.; Gerst, III,Carl W.; Smith, II,George S.; Hussey,Robert M.; Gardiner,Robert C.; Pankow,Matthew W., Optical reader having partial frame operating mode.
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Hussey,Robert M.; Gardiner,Robert; Pankow,Matthew, Optical reader having reduced parameter determination delay.
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Longacre, Jr.,Andrew; Hussey,Robert M.; Pidhimy,John M., Optical reader having two-dimensional solid state image sensor and light generator.
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Longacre, Jr.,Andrew; Ehrhart,Michael A.; Koziol,Thomas J.; Hussey,Robert M.; Parker,James A., Optical reader processing two-dimensional electronic representations.
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Parker,James A.; Pine,Jeffrey; Koziol,Thomas J.; Ehrhart,Michael A.; Longacre, Jr.,Andrew; Hussey,Robert M.; Smith, II,George S., Optical reader system comprising host processor and optical reader.
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Longacre, Jr.,Andrew, Portable bar code reading device generating first and second electronic representations of a substrate.
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Zhu, Jie, Produce recognition method.
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Barber, Charles P.; Gerst, III, Carl W.; Smith, II, George S.; Hussey, Robert M.; Gardiner, Robert C.; Pankow, Matthew W., Reading apparatus having partial frame operating mode.
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Barber, Charles P.; Gerst, III, Carl W.; Smith, II, George S.; Hussey, Robert M.; Gardiner, Robert C.; Pankow, Matthew W., Reading apparatus having partial frame operating mode.
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Barber, Charles P.; Gerst, III, Carl W.; Smith, II, George S.; Hussey, Robert M.; Gardiner, Robert C.; Pankow, Matthew W., Reading apparatus having partial frame operating mode.
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Parker,James A.; Pine,Jeffrey; Koziol,Thomas J.; Ehrhart,Michael A.; Longacre Jr.,Andrew; Hussey,Robert M.; Smith,George S., Reprogrammable optical reader.
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Parker, James A.; Pine, Jeffrey; Koziol, Thomas J.; Ehrhart, Michael A.; Longacre, Jr., Andrew; Hussey, Robert M.; Smith, George S., Scanning and decoding control for an optical reader.
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Deppieri, Francesco; De Girolami, Maurizio Aldo; Lanza, Alessandro; Sgallari, Fiorella, Systems, methods and articles for reading highly blurred machine-readable symbols.
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Spitzig, Roger; Richards, Bob; Boston, Michael; Rawlings, David, Verification system and method in a document processing environment.
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Spitzig, Roger; Richards, Bob; Boston, Michael; Rawlings, David, Verification system and method in a document processing environment.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Fuzzy logic barcode reader 원문보기

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Fuzzy logic barcode reader 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (65)

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