Dynamic system control method

Details Dynamic system control method Dynamic system control method

2001-02-08

2008-10-07

Wong, K. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

C360S075000

Reexamination Certificate

active

07433144

ABSTRACT:
Techniques are provided herein for reducing vibrations in various modes of a dynamic system. One such technique comprises incorporating vibration limiting and sensitivity constraints into a partial fraction expansion equation model of the system so as to reduce vibrations to specific levels. Another technique comprises shaping a command determined using the partial fraction expansion equation model to produce a desired output. The entire command may be shaped or only selected portions thereof which produce vibrations. Another technique involves commanding in current to produce saturation in voltage. By doing this, it is possible to command voltage switches. The times at which the switches occur can be set to reduce system vibrations. Other techniques are also provided. These include varying transient portions at the beginning, middle and/or end of a move and using Posicast inputs, among others.

REFERENCES:
patent: 4096579 (1978-06-01), Black et al.
patent: 4350941 (1982-09-01), McClure et al.
patent: 4675761 (1987-06-01), Ashbee et al.
patent: 4751441 (1988-06-01), Lewis
patent: 4916635 (1990-04-01), Singer et al.
patent: 4931889 (1990-06-01), Osafune
patent: 4933785 (1990-06-01), Morehouse et al.
patent: 4937689 (1990-06-01), Seaver et al.
patent: 4956831 (1990-09-01), Sarraf et al.
patent: 4967293 (1990-10-01), Aruga et al.
patent: 4991129 (1991-02-01), Swartz
patent: 5264771 (1993-11-01), Kawauchi
patent: 5282100 (1994-01-01), Tacklind et al.
patent: 5291110 (1994-03-01), Andrews, Jr. et al.
patent: 5412809 (1995-05-01), Tam et al.
patent: 5450252 (1995-09-01), Kanda
patent: 5465034 (1995-11-01), Andrews et al.
patent: 5465035 (1995-11-01), Scaramuzzo et al.
patent: 5475545 (1995-12-01), Hampshire et al.
patent: 5490601 (1996-02-01), Heissat et al.
patent: 5535355 (1996-07-01), Scales
patent: 5600221 (1997-02-01), Tomatsuri et al.
patent: 5610848 (1997-03-01), Fowell
patent: 5638267 (1997-06-01), Singhose et al.
patent: 5657179 (1997-08-01), McKenzie
patent: 5668680 (1997-09-01), Tremaine
patent: 5726825 (1998-03-01), Phan et al.
patent: 5738904 (1998-04-01), Jones
patent: 5751513 (1998-05-01), Phan et al.
patent: 5760992 (1998-06-01), Phan et al.
patent: 5859742 (1999-01-01), Takaishi
patent: 5880587 (1999-03-01), Annis et al.
patent: 5901009 (1999-05-01), Sri-Jayantha et al.
patent: 5917789 (1999-06-01), Iwasaki et al.
patent: 5973871 (1999-10-01), Dunn et al.
patent: 5986426 (1999-11-01), Rowan
patent: 5988411 (1999-11-01), Singer et al.
patent: 6002232 (1999-12-01), McConnell et al.
patent: 6008640 (1999-12-01), Tan et al.
patent: 6011373 (2000-01-01), McConnell et al.
patent: 6011667 (2000-01-01), Dunn et al.
patent: 6013995 (2000-01-01), Kim
patent: 6031684 (2000-02-01), Gregg
patent: 6038096 (2000-03-01), Zhang et al.
patent: 6052252 (2000-04-01), Kim
patent: 6067203 (2000-05-01), Ottesen et al.
patent: 6101065 (2000-08-01), Alfred et al.
patent: 6111720 (2000-08-01), Clare et al.
patent: 6115203 (2000-09-01), Ho et al.
patent: 6148240 (2000-11-01), Wang et al.
patent: 6151182 (2000-11-01), Koizumi et al.
patent: 6178060 (2001-01-01), Liu
patent: 6195222 (2001-02-01), Heminger et al.
patent: 6256731 (2001-07-01), Hall et al.
patent: 6292324 (2001-09-01), Ho et al.
patent: 6505085 (2003-01-01), Tuttle et al.
patent: 0308062 (1989-03-01), None
patent: 2303732 (1997-02-01), None
patent: 01278109 (1989-11-01), None
Microsoft Press Computer Dictionary, 3rdedition, p. 399, no date.
Ph.D. Thesis entitled: “Discrete Polynomial Control” by Kamran Ossia, 1991 (CPS010434).
Seagate ST406/ST412/ST419 Product Manual, Jan. 31, 1984 (CTL287279).
Seagate ST506/412 OEM Manual (CTL287543), no date.
Seagate ST4026/ ST4038/ ST4051 Product Manual, Feb. 5, 1987 (CTL287764).
Seagate ST406/412/419 Service Manual, Oct. 17, 1983 (CTL287838).
Seagate Technology Paper entitled: “Power Management” by Tai Patwardhan, Jun. 1993 (CTL291935).
Abstract entitled: “An Input Shaping Controller Enabling Cranes to Move Without Sway” by Neil Singer, et al. (CTL283969), no date.

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