Number | Name | Date | Kind |
---|---|---|---|
3662120 | Hess | May 1972 | A |
4170683 | Miklos | Oct 1979 | A |
4380032 | Pfost | Apr 1983 | A |
4578729 | Suzuki et al. | Mar 1986 | A |
4848698 | Newell et al. | Jul 1989 | A |
4884260 | Bouldin et al. | Nov 1989 | A |
4983496 | Newell et al. | Jan 1991 | A |
5369631 | Hwang | Nov 1994 | A |
5487058 | Kitabayashi | Jan 1996 | A |
5674583 | Nakayama et al. | Oct 1997 | A |
5976668 | Chiba et al. | Nov 1999 | A |
6018434 | Saliba | Jan 2000 | A |
6084740 | Leonhardt et al. | Jul 2000 | A |
6103365 | Ishii et al. | Aug 2000 | A |
6236529 | Leonhardt et al. | May 2001 | B1 |
6433951 | Lubratt | Aug 2002 | B1 |
Number | Date | Country |
---|---|---|
563635 | Jun 1975 | CH |
32 01 935 | Aug 1983 | DE |
598503 | May 1994 | EP |
54097407 | Aug 1979 | JP |
56033751 | Apr 1981 | JP |
61009819 | Jan 1986 | JP |
62264422 | Nov 1987 | JP |
01155514 | Jun 1989 | JP |
04311807 | Nov 1992 | JP |
04311808 | Nov 1992 | JP |
06004848 | Jan 1994 | JP |
10003653 | Jan 1998 | JP |
10232823 | Sep 1998 | JP |
Entry |
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“Photocell Filter Combination”, Mar. 1962, IBM TDB, vol. No. 3, ISS. No. 10, p. 27.* |
“Optimized Tape Mark Detector”, May 1970, IBM TDB, vol. No. 12, ISS. No. 12, pp. 2354-2355.* |
“Magnetic Tape Sensing”, Jun. 1971, IBM TDB, vol. No. 14, ISS. No. 1, pp. 58-59. |