Number | Name | Date | Kind |
---|---|---|---|
3919697 | Walker | Nov 1975 | |
4016603 | Ottesen | Apr 1977 | |
4032984 | Kaser et al. | Jun 1977 | |
4052741 | Baca et al. | Oct 1977 | |
4087843 | Louis et al. | May 1978 | |
4157577 | Porter, Jr. et al. | Jun 1979 | |
4400747 | Silverling | Aug 1983 | |
4424543 | Lewis et al. | Jan 1984 | |
4454549 | Pennington | Jun 1984 | |
4462053 | Lum et al. | Jul 1984 | |
4511938 | Betts | Apr 1985 | |
4578723 | Betts et al. | Mar 1986 | |
4590526 | Laatt et al. | May 1986 | |
4656538 | Mattson | Apr 1987 | |
4669004 | Moon et al. | May 1987 | |
4823212 | Knowles et al. | Apr 1989 | |
4910617 | Brunnett et al. | Mar 1990 | |
4912576 | Janz | Mar 1990 | |
4918677 | Ashinuma et al. | Apr 1990 | |
4933795 | Nigam | Jun 1990 | |
4984100 | Takayama et al. | Jan 1991 | |
5050016 | Squires | Sep 1991 |
Number | Date | Country |
---|---|---|
0062690 | Apr 1988 | EPX |
0269381 | Jun 1988 | EPX |
0339851 | Feb 1989 | EPX |
1-124169 | May 1989 | JPX |
Entry |
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W. A. Herrington and F. E. Mueller, "Quad-Burst PES System for Disk File Servo" IBM Tech. Discl. Bull. vol. 21, No. 2, Jul. 1978, pp. 804-805. |
D. H. Pennington and A. A. Recupero, "Digital Sector Servo System" IBM Tech. Discl. Bull. vol. 22, No. 6, Nov. 1979 pp. 2476-2481. |
R. K. Oswald, "Track Following Servo System" IBM Tech. Discl. Bull. vol. 18, No. 10, Mar., 1976, pp. 3424-3425. |