System for correcting transducer tangential skew in a disk drive system having two actuators

  • US 5,523,901 A
  • Filed: 08/08/1994
  • Issued: 06/04/1996
  • Est. Priority Date: 01/22/1993
  • Status: Expired due to Fees
First Claim
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1. In a disk drive system having two actuators, a packwriting actuator and a nonpackwriting actuator, each said actuator having a plurality of transducers where each said transducer reads and writes data onto and from a disk in said disk drive system and where data written on a disk by a transducer on said packwriting actuator can be read by a transducer on said nonpackwriting actuator and data written on a disk by a transducer on said nonpackwriting actuator can be read by a transducer on said packwriting actuator and where simultaneously a transducer on said nonpackwriting actuator can read or write data from or to a disk in said disk drive system and a transducer on said nonpackwriting actuator can read or write data from or to a disk in said disk drive system, said system employing a transducer switching procedure for switching between a selected transducer and a to be selected transducer where said selected and to be selected transducers are on said nonpackwriting actuator, an apparatus comprising:

  • address mark means for generating an address mark search signal to start an address mark search when an address mark is expected to be read by said selected transducer; and

    adjusting means connected to said address mark means for altering the time when said address mark means will generate said address mark search signal in response to said transducer switching procedure selecting said to be selected transducer such that said to be selected transducer will read the next address mark to occur on the track being read by said to be selected transducer after said to be selected transducer is selected.

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