|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||318/615 ; 318/611 ; 318/619|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 2 인용 특허 : 7|
Described is a novel technique and associated arrangement for determining the noise-free value of a system parameter (e.g., head position in a disk drive) which is time variable and (usually) has a noise component as detected. The technique involves processing the (as detected) noise-including value and passing it through “Second Order/Summing”filter means. For instance, the technique is described as particularly useful with the “track-following servo”(part of the transducer positioning means) in a high density disk file (where track density is higher th...
An arrangement SS for controlling automatic high speed positioning motor means associated with a track-following servo in a disk drive for a high-density disk file, for determining relatively noise-free head-position-error signals (Xo), said arrangement SS being characterized by position-error signals with significant undesirable related noise components, including resonance and other “mechanical”noise plus “electrical”noise, this control arrangement SS comprising: a time-variant signal input means I adapted to accept time-variant position-error signals,...