Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate
2000-06-02
2002-12-31
Nguyen, Hoa T. (Department: 2652)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
Reexamination Certificate
active
06501614
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a hard disk drive that has a laminated housing which attenuates noise generated by the drive.
PRIOR ART
Hard disk drives contain a plurality of transducers that are coupled to magnetic disks. The transducers can read and write information by magnetizing and sensing the magnetic fields of the disks, respectively. The disks are rotated by a spindle motor that is mounted to a base plate.
The transducers are typically integrated into heads that are mounted to corresponding flexure arms. The flexure arms are attached to an actuator arm that is mounted to the base plate. The actuator arm includes a voice coil motor that can move the transducers across the surfaces of the disks. The voice coil motor allows the transducers to access information located within different radial tracks of the disks. The disks, spindle motor and actuator arm are all enclosed by a cover that is attached to the base plate.
The spindle motor and voice coil motor generate acoustic noise that is transmitted into the environment through the cover and the base plate of the drive. The spindle motor may also create vibration that is converted into acoustic noise and emitted by the disk drive. Additionally, the rotating disks create a flow of air that may generate fluid perturbations and resultant acoustic noise.
Acoustic noise is undesirable particularly when the disk drive is assembled into a consumer product such as a computer or a digital video recorder. It would therefore be desirable to provide a hard disk drive that attenuates the noise generated by the drive. It would be desirable to attenuate the noise without significantly increasing the size of the hard disk drive or the cost of producing the drive.
BRIEF SUMMARY OF THE INVENTION
One embodiment of the present invention is a hard disk drive which has a housing that can attenuate noise. The housing may include a first layer that is attached to a second layer and a third layer located between the first and second layers.
REFERENCES:
patent: 3558831 (1971-01-01), Prescott et al.
patent: 4110802 (1978-08-01), Ho et al.
patent: 4280156 (1981-07-01), Villette
patent: 4493554 (1985-01-01), Pryor et al.
patent: 4555739 (1985-11-01), Le Van et al.
patent: 4562500 (1985-12-01), Bygdnes
patent: 4630926 (1986-12-01), Tanaka et al.
patent: 4661873 (1987-04-01), Schulze
patent: 4673996 (1987-06-01), White
patent: 4703376 (1987-10-01), Edwards et al.
patent: 4731777 (1988-03-01), Yoshitoshi et al.
patent: 4739425 (1988-04-01), Dierkes et al.
patent: 4784012 (1988-11-01), Marra
patent: 4794588 (1988-12-01), Yoshitoshi et al.
patent: 4802042 (1989-01-01), Strom
patent: 4819105 (1989-04-01), Edwards
patent: 4839756 (1989-06-01), Chew et al.
patent: 4866553 (1989-09-01), Kubo et al.
patent: 4870519 (1989-09-01), White
patent: 4890172 (1989-12-01), Watt et al.
patent: 4949206 (1990-08-01), Phillips et al.
patent: 4958337 (1990-09-01), Yamanaka et al.
patent: 4982300 (1991-01-01), Forbord
patent: 5004207 (1991-04-01), Ishikawa et al.
patent: 5021905 (1991-06-01), Sleger
patent: 5029026 (1991-07-01), Stefansky et al.
patent: 5062017 (1991-10-01), Strom et al.
patent: 5097370 (1992-03-01), Hsia
patent: 5128822 (1992-07-01), Chapin et al.
patent: 5130870 (1992-07-01), Jabbari
patent: 5159508 (1992-10-01), Grill et al.
patent: 5161900 (1992-11-01), Bougathou et al.
patent: 5167167 (1992-12-01), Tiernan, Jr. et al.
patent: 5175661 (1992-12-01), Mizuno et al.
patent: 5187621 (1993-02-01), Tacklind
patent: 5200868 (1993-04-01), Chapin et al.
patent: 5202803 (1993-04-01), Albrecht et al.
patent: 5214549 (1993-05-01), Baker et al.
patent: 5241438 (1993-08-01), Matsushima
patent: 5243495 (1993-09-01), Read et al.
patent: 5247493 (1993-09-01), Kime et al.
patent: 5262911 (1993-11-01), Cain et al.
patent: 5262913 (1993-11-01), Stram et al.
patent: 5267109 (1993-11-01), Chapin et al.
patent: 5274519 (1993-12-01), Saito et al.
patent: 5287235 (1994-02-01), Cunningham et al.
patent: 5293282 (1994-03-01), Squires et al.
patent: 5309303 (1994-05-01), Hsia et al.
patent: 5319511 (1994-06-01), Lin
patent: 5343343 (1994-08-01), Chapin
patent: 5347414 (1994-09-01), Kano
patent: 5365389 (1994-11-01), Jabbari et al.
patent: 5369538 (1994-11-01), Moe et al.
patent: 5396386 (1995-03-01), Bolasna et al.
patent: 5396387 (1995-03-01), Murray
patent: 5402290 (1995-03-01), Daniel
patent: 5404256 (1995-04-01), White
patent: 5410402 (1995-04-01), Li et al.
patent: 5422776 (1995-06-01), Thorson et al.
patent: 5426562 (1995-06-01), Morehouse et al.
patent: 5442638 (1995-08-01), Awad et al.
patent: 5455728 (1995-10-01), Edwards et al.
patent: 5460017 (1995-10-01), Taylor
patent: 5463527 (1995-10-01), Hager et al.
patent: 5469311 (1995-11-01), Nishida et al.
patent: 5537272 (1996-07-01), Kazmierczak et al.
patent: 5546250 (1996-08-01), Diel
patent: 5555144 (1996-09-01), Wood et al.
patent: 5570249 (1996-10-01), Aoyagi et al.
patent: 5610776 (1997-03-01), Oh
patent: 5636090 (1997-06-01), Boigenzahn et al.
patent: 5663853 (1997-09-01), Park
patent: 5666239 (1997-09-01), Pottebaum
patent: 5673158 (1997-09-01), Ichimura
patent: 5677813 (1997-10-01), Yoshida et al.
patent: 5703734 (1997-12-01), Berberich et al.
patent: 5754353 (1998-05-01), Behrens et al.
patent: 5768249 (1998-06-01), Ro et al.
patent: 5781373 (1998-07-01), Larson et al.
patent: 5801899 (1998-09-01), Genheimer
patent: 5815349 (1998-09-01), Frater
patent: 5822139 (1998-10-01), Ayabe
patent: 5831795 (1998-11-01), Ma et al.
patent: 5844754 (1998-12-01), Stefansky et al.
patent: 5844911 (1998-12-01), Schadegg et al.
patent: 5875067 (1999-02-01), Morris et al.
patent: 5885005 (1999-03-01), Nakano et al.
patent: 5886851 (1999-03-01), Yamazaki et al.
patent: 5901017 (1999-05-01), Sano et al.
patent: 5926347 (1999-07-01), Kouhei et al.
patent: 5930079 (1999-07-01), Vera et al.
patent: 5930080 (1999-07-01), Frater et al.
patent: 5936927 (1999-08-01), Soga et al.
patent: 5969901 (1999-10-01), Eckberg et al.
patent: 5982580 (1999-11-01), Woldemar et al.
patent: 5987733 (1999-11-01), Goss
patent: 6011670 (2000-01-01), Balsley, Jr. et al.
patent: 6034941 (2000-03-01), Ro
patent: 6046883 (2000-04-01), Miller
patent: 6084744 (2000-07-01), Genheimer et al.
patent: 6088192 (2000-07-01), Riener et al.
patent: 6088194 (2000-07-01), Imaino et al.
patent: 6088202 (2000-07-01), Kabasawa et al.
patent: 6154360 (2000-11-01), Kaczeus, Sr. et al.
patent: 6157522 (2000-12-01), Murphy et al.
patent: 6166901 (2000-12-01), Gamble et al.
patent: 6177173 (2001-01-01), Nelson
patent: 6185075 (2001-02-01), Tsujino et al.
patent: 6185807 (2001-02-01), Kazmierczak et al.
patent: 6198606 (2001-03-01), Boutaghou et al.
patent: 6201668 (2001-03-01), Murphy
patent: 6205005 (2001-03-01), Heath
patent: 6226143 (2001-05-01), Stefansky
patent: 6226152 (2001-05-01), Tanaka et al.
patent: 6229668 (2001-05-01), Huynh et al.
patent: 6233124 (2001-05-01), Budde et al.
patent: 6239943 (2001-05-01), Jennings et al.
patent: 6366426 (2002-04-01), Beatty et al.
patent: 0 426 353 (1991-05-01), None
patent: 0 463 752 (1992-01-01), None
patent: 0 491 563 (1992-06-01), None
patent: 0 582 464 (1994-02-01), None
patent: 0 801 387 (1997-10-01), None
patent: 2 326 755 (1998-12-01), None
patent: 632 344 55 (1988-09-01), None
patent: 3-83281 (1991-04-01), None
patent: 3-104079 (1991-05-01), None
patent: 4-232685 (1992-08-01), None
patent: 09251769 (1997-09-01), None
patent: 9-293370 (1997-11-01), None
patent: WO 96/34390 (1996-10-01), None
US 6,091,569, 7/2000, Allsup et al. (withdrawn)
Han Yun-Sik
Hwang Tai-Yeon
Kang Seong-Woo
Long Wilson
Aiello Jeffrey P.
Irell & Manella LLP
Nguyen Hoa T.
Samsung Electronics Co,. Ltd.
Watko Julie Anne
LandOfFree
Acoustic insulator for controlling noise generated in a mass... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acoustic insulator for controlling noise generated in a mass..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic insulator for controlling noise generated in a mass... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2919710