Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2005-04-19
2005-04-19
Hindi, Nabil (Department: 2655)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S047100, C369S124050, C369S030100
Reexamination Certificate
active
06882601
ABSTRACT:
A tracking servo system with a feed-forward control loop is presented. Periodic variations in a control signal can be detected. These periodic variations can be added into the control signal to form a new control signal so that on subsequent cycles the control signal does not include the periodic variations.
REFERENCES:
patent: 4513407 (1985-04-01), Bricot
patent: 4677602 (1987-06-01), Okano et al.
patent: 4682332 (1987-07-01), Okamoto et al.
patent: 4730295 (1988-03-01), Bressers
patent: 4761776 (1988-08-01), Opheij
patent: 4785451 (1988-11-01), Sako et al.
patent: 4791627 (1988-12-01), Yonezawa
patent: 4856108 (1989-08-01), Tinet
patent: 4862447 (1989-08-01), Opheij
patent: 4864118 (1989-09-01), Opheij et al.
patent: 4866692 (1989-09-01), Saito et al.
patent: 4878211 (1989-10-01), Suzuki et al.
patent: 4893298 (1990-01-01), Pasman et al.
patent: 4901300 (1990-02-01), Van Der Zande et al.
patent: 4959822 (1990-09-01), Pasman et al.
patent: 4972401 (1990-11-01), Carasso et al.
patent: 5014274 (1991-05-01), Higurashi et al.
patent: 5023854 (1991-06-01), Satoh et al.
patent: 5023856 (1991-06-01), Raaymakers et al.
patent: 5060219 (1991-10-01), Lokhoff et al.
patent: 5124966 (1992-06-01), Roth et al.
patent: 5140580 (1992-08-01), Ohara et al.
patent: 5146443 (1992-09-01), Iwase et al.
patent: 5247494 (1993-09-01), Ohno et al.
patent: 5295127 (1994-03-01), Verboom et al.
patent: 5333126 (1994-07-01), Fukuda et al.
patent: 5339301 (1994-08-01), Raaymakers et al.
patent: 5341356 (1994-08-01), Dieleman et al.
patent: 5377178 (1994-12-01), Saito et al.
patent: 5390159 (1995-02-01), Schylander
patent: 5408454 (1995-04-01), Hasegawa
patent: 5418764 (1995-05-01), Roth et al.
patent: 5434834 (1995-07-01), Shinoda et al.
patent: 5459712 (1995-10-01), Sugaya et al.
patent: 5467335 (1995-11-01), Braat
patent: 5479388 (1995-12-01), Gondou et al.
patent: 5491677 (1996-02-01), Sasaki
patent: 5587991 (1996-12-01), Nabeshima et al.
patent: 5610880 (1997-03-01), Watanabe et al.
patent: 5654947 (1997-08-01), Roth et al.
patent: 5729511 (1998-03-01), Schell et al.
patent: 5740143 (1998-04-01), Suetomi
patent: 5793737 (1998-08-01), Den Boef
patent: 5831946 (1998-11-01), De Bie
patent: 5835462 (1998-11-01), Mimnagh
patent: 5841739 (1998-11-01), Iida et al.
patent: 5850382 (1998-12-01), Koishi et al.
patent: 5875158 (1999-02-01), Schell
patent: 5881044 (1999-03-01), Park et al.
patent: 5886985 (1999-03-01), Kobayashi et al.
patent: 5896353 (1999-04-01), Naohara
patent: 5995462 (1999-11-01), Harold-Barry
patent: 6087644 (2000-07-01), Schell
patent: 6195319 (2001-02-01), Ohshita et al.
patent: 6751171 (2004-06-01), Ohta
Kadlec Ron J.
Wach Hans B.
Watt Charles R.
DPHI Acquisitions, Inc.
Hindi Nabil
MacPherson Kwok & Chen & Heid LLP
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