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4144449 | Funk et al. | Mar 1979 | A |
4247767 | O'Brien et al. | Jan 1981 | A |
4507557 | Tsikos | Mar 1985 | A |
4742221 | Sasaki et al. | May 1988 | A |
4746770 | McAvinney | May 1988 | A |
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5936615 | Waters | Aug 1999 | A |
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6531999 | Trajkovic | Mar 2003 | B1 |
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6594023 | Omura et al. | Jul 2003 | B1 |
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Number | Date | Country |
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198 10 452 | Dec 1998 | DE |
57-211637 | Dec 1982 | JP |
8-240407 | Sep 1996 | JP |
9-91094 | Apr 1997 | JP |
9-319501 | Dec 1997 | JP |
WO 9940562 | Aug 1999 | WO |
Entry |
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International Search Report with a date of mailing of Oct. 22, 2001 for PCT/CA 01/00980 with an International Filing Date of Jul. 5, 2001. |
“CCDs in optical touch panels deliver high resolution”, Bud K. Funk, Electronic Design, Sep. 27, 1980, pp. 139-143. |