[특허]Methods and apparatus for area weighted means processing of barcode signals

NCR Corporation

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Methods and apparatus for area weighted means processing of barcode signals

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06K-007/10
미국특허분류(USC)	235/462.25; 235/462.01; 235/462.27; 235/462
출원번호	US-0712731 (2000-11-14)
발명자 / 주소	Tang, Hong Gu, Yeming
출원인 / 주소	NCR Corporation
대리인 / 주소	Priest & Goldstein, PLLC
인용정보	피인용 횟수 : 2 인용 특허 : 13

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Techniques for removing noise effects in processing a barcode signal. A photosignal produced by scanning a barcode is used to generate a digital first derivative signal. Positive and negative thresholds are generated based on the digital first derivative signal. Processing windows are defined for each region of the first derivative signal which exceeds a threshold. Each processing window is bounded by a window opening point at which the first derivative signal exceeds a threshold, and by a window closing point, which is the last crossing of the threshold by the first derivative signal before the first derivative signal makes a zero crossing. Each region is processed to locate a geometric center of the region. A logic transition is recognized for the geometric center of each region defined by a processing window. said nanophase and microphase oxidation catalysts having the property of accelerating the oxidation of said organic components when said oxidation catalysts are exposed to electromagnetic radiation; adding said mixture to a liquid carrier to form a solution; and spraying said solution onto said substrate so that said solution is coated onto said substrate. 2. The method of claim 1, wherein said liquid carrier comprises water. 3. The method of claim 1, further comprising the step of baking said substrate at a temperature greater than 150° F., said step of baking said substrate occurring after said step of spraying said solution. 4. The method of claim 1, further comprising the step of baking said substrate at a temperature greater than 750° F., said step of baking said substrate occurring after said step of spraying said solution. 5. The method of claim 1, wherein said substrate comprises a pleated wire mesh screen. 6. The method of claim 1, wherein said nanophase and microphase oxidation catalysts comprise anatase titanium dioxide. 7. The method of claim 1, further comprising the step of, prior to spraying said solution onto said substrate, etching said substrate to improve the bonding of said solution onto said substrate. 8. A method of manufacturing a filter configured to oxidize organic components within a fluid in the presence of electromagnetic radiation from an electromagnetic radiation source, said filter comprising a substrate coated with a catalyst solution, said method comprising: providing said substrate, said substrate configured to be positioned within a fluid flow; mixing nanophase metal oxide catalyst with microphase metal oxide catalyst, said catalysts having the property of accelerating the oxidation of said organic components when said catalysts are exposed to electromagnetic radiation, said mixture comprising at least 30% said nanophase metal oxide catalyst; adding said mixture to a liquid to form said catalyst solution; and spraying said catalyst solution onto said substrate. 9. The method of claim 8, further comprising the step of baking said substrate after spraying said catalyst solution onto said substrate, to prevent particles of the catalysts from recrystallizing. 10. The method of claim 9, wherein said liquid comprises water. 11. The method of claim 9, wherein said substrate is formed of a transition metal. 12. The method of claim 9, wherein said substrate is a pleated wire mesh screen. 13. The method of claim 9, further comprising the step of, prior to spraying said catalyst solution onto said substrate, etching said substrate so that said catalyst solution more effectively bonds to said substrate. 14. The method of claim 9, wherein said nanophase and microphase metal oxide catalysts comprise anatase titanium dioxide. 15. A method of manufacturing a filter configured to purify a fluid with organic components passing through said filter in the presence of ultra violet light, said filter comprising a substrate coated with a mixture of catalysts, said method comprising: providing said substrate, said subsrtate having a plurality of open cells for permitting fluid flow through said substrate; mixing together a substantially nanophase component of metal oxide catalyst with a substantially microphase component of metal oxide catalyst to form said mixture of catalysts, said mixture comprising at least 30% said nanophase metal oxide catalyst, said nanophase and microphase catalysts having the property of accelerating the oxidation of organic components within a fluid when said catalysts are exposed to ultra violet light; adding said mixture to water to form a solution; and spraying said solution onto said substrate to coat said substrate with said mixture of catalysts. 16. The method of claim 15, further comprising the step of baking said substrate after said solution is sprayed onto said substrate, to prevent particles of the catalysts from recrystallizing. 17. The method of claim 16 , wherein said substrate is baked at a temperature greater than 750° F. 18. The method of claim 15, wherein said substrate is formed from a transition metal. 19. The method of claim 15, wherein said substrate comprises a pleated wire mesh screen. 20. The method of claim 15, further comprising the step of, prior to spraying said solution onto said substrate, etching said substrate to improve the bonding of said solution onto said substrate. 21. The method of claim 15, wherein said nanophase and microphase catalysts comprise anatase titanium dioxide. 22. A method of manufacturing a filter comprising a substrate coated with an oxidation catalyst mixture, the filter configured to oxidize organic components within a fluid in the presence of electromagnetic, radiation from an electromagnetic radiation source, said method comprising: providing said substrate, said substrate formed from a transition metal and configured so that said substrate may be positioned within a flow of fluid without substantially impeding said flow; combining a substantially nanophase component of metal oxide oxidation catalyst with a substantially microphase component of metal oxide oxidation catalyst to form said oxidation catalyst mixture, said mixture comprising at least 30% said nanophase metal oxide oxidation catalyst, said nanophase and microphase oxidation catalysts having the property of accelerating the oxidation of said organic components when said oxidation catalysts are exposed to electromagnetic radiation; adding said mixture to a liquid carrier to form a solution; and spraying said solution onto a substrate so that said solution is coated onto said substrate. 23. The method of claim 22, wherein said liquid carrier comprises water. 24. The method of claim 22, further comprising the step of baking said substrate at a temperature greater than 150° F., said step of baking said substrate occurring after said step of spraying said solution. 25. The method of claim 22, further comprising the step of baking said substrate at a temperature greater than 750° F., said step of baking said substrate occurring after said step of spraying said solution. 26. The method of claim 22, wherein said substrate comprises a pleated wire mesh screen. 27. The method of claim 22, wherein said nanophase and microphase oxidation catalysts comprise anatase titanium dioxide. 28. The method of claim 22, further comprising the step of, prior to spraying said solution onto said substrate, etching said substrate to improve the bonding of said solution onto said substrate. m 1, wherein the film is formed from a foamed plastic. 6. The protective packing element of claim 1, wherein the film has a thickness in the range of from about 2 mil to about 125 mil. 7. The protective packing element of claim 1, wherein the repeatably bendable hinge withstands more than 30 bending cycles without substantial observable tearing of the film.

이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 2

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Methods and apparatus for area weighted means processing of barcode signals

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Methods and apparatus for area weighted means processing of barcode signals

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