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Sampled amplitude read channel employing interpolated timing recovery and a remod/demod sequence detector

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G11B-005/09
출원번호 US-0681678 (1996-07-29)
발명자 / 주소
  • Reed David E.
  • Foland
  • Jr. William R.
  • Bliss William G.
  • Behrens Richard T.
  • Sundell Lisa C.
출원인 / 주소
  • Cirrus Logic, Inc.
대리인 / 주소
    Sheerin
인용정보 피인용 횟수 : 41  인용 특허 : 2

초록

In a computer disk storage system for recording binary data, a sampled amplitude read channel comprises a sampling device for asynchronously sampling pulses in an analog read signal from a read head positioned over a disk storage medium, interpolated timing recovery for generating synchronous sample

대표청구항

[ We claim:] [1.] A sampled amplitude read channel for reading binary data from a sequence of discrete time sample values generated by sampling pulses in an analog read signal from a read head positioned over a disk storage medium, comprising:(a) a sampling device for sampling the analog read signal

이 특허에 인용된 특허 (2)

  1. Knudson Kelly J. (Mountain View CA), Reduced complexity EPR4 post-processor for sampled data detection.
  2. Spurbeck Mark S. (Louisville CO) Behrens Richard T. (Littleton CO) Feyh German S. (Boulder CO), Sampled amplitude read channel employing interpolated timing recovery.

이 특허를 인용한 특허 (41)

  1. Howarth,James J.; Hutchins,Robert A.; Jaquette,Glen A., Apparatus and method to read information from a tape storage medium.
  2. Kolze, Thomas J.; Yousef, Nabil R.; Min, Jonathan S., Chip blanking and processing in SCDMA to mitigate impulse and burst noise and/or distortion.
  3. Bhakta, Bhavesh G.; Kim, Younggyun, Decimated digital phase-locked loop for high-speed implementation.
  4. Kim, Younggyun; Bhakta, Bhavesh G.; Gruetter, David R., Decision error compensation technique for decision-directed timing recovery loop.
  5. Koby Finkelstein IL, Digital read channel for optical disk reader.
  6. Grant S. Christiansen ; Mark D. Hagen, Disk drive for detecting a polarity error of a magnetoresistive head by detecting a sync mark.
  7. Nakagawa Toshiyuki,JPX ; Yoshimura Shunji,JPX, Encoder decoder device not using an A/D converter and method thereof.
  8. Voorman, Johannes Otto; Bergmans, Johannes Wilhelmus Maria; Wong-Lam, Ho Wai, Erasure based instantaneous loop control in a data receiver.
  9. Shieh, Jia-Horng, Error correction method in full response read channels.
  10. Zook, Christopher P., Error detection convolution code and post processor for correcting dominant error events of a trellis sequence detector in a sampled amplitude read channel for disk storage systems.
  11. Lisa Fredrickson, Frame synchronization for viterbi detector.
  12. Bernardo Rub ; Hamid R. Shafiee, Full and half-rate signal space detection for channels with a time-varying MTR.
  13. Bhakta, Bhavesh G.; Kim, Younggyun, Implementation method of digital phase-locked loop.
  14. Dziak, Scott; Xia, Haitao; Lu, Lu, Loop adaptation control with pattern detection.
  15. Sacks, Alexei H.; Ellis, Timothy F.; Korkowski, Patrick J.; Belser, Karl A., Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same.
  16. Eleftheriou, Evangelos S.; Hutchins, Robert Allen; Jaquette, Glen Alan; Oelcer, Sedat, Magnetic tape read channel signal values developed employing intermediate bits of the path memory of a PRML Viterbi detector.
  17. Eleftheriou,Evangelos S.; Hutchins,Robert Allen; Jaquette,Glen Alan; Oelcer,Sedat, Magnetic tape read channel signal values developed employing intermediate bits of the path memory of a PRML viterbi detector.
  18. Kost, Robert E.; Zhu, Jian-Gang, Method and apparatus for determining bit error rate in a sampled data system without requiring read channel circuitry.
  19. Ottesen, Hal Hjallmar; Smith, Gordon James, Method and apparatus for limiting soft error recovery in a disk drive data storage device.
  20. Aralis James ; Walker Paul, Method and apparatus for position error signal (PES) measurement in a disk drive servo system.
  21. Ino, Hiroyuki, Method and apparatus of Viterbi detection for trellis-code.
  22. Reed David E. ; Bliss William G. ; Sundell Lisa C., PR4 equalization and an EPR4 remod/demod sequence detector in a sampled amplitude read channel.
  23. McClellan Brett ; Leung Michael ; Fu Leo ; Jeon Taehyun, Parity insertion with precoder feedback in a PRML read channel.
  24. Kibune, Masaya, Reception circuit, method of creating AD converter conversion table of reception circuit, and signal transfer system.
  25. Blaettler, Tobias; Mueller, Peter, Removing error patterns in binary data.
  26. Venkataramani, Raman; Erden, Mehmet Fatih, Robust maximum-likelihood based timing recovery.
  27. Vis, Marvin L.; Zook, Christopher P., Sampled amplitude read channel employing a post processor with a boundary error compensator which compensates for boundary error events in a split-field data sector.
  28. Livingston, Jay N., Sampled amplitude read channel employing a trellis sequence detector and a post processor for generating error metrics used to correct errors made by the trellis sequence detector.
  29. Livingston Jay N. ; Bliss William G., Sampled amplitude read channel employing a trellis sequence detector matched to a channel code constraint and a post processor for correcting errors in the detected binary sequence using the signal s.
  30. Zook Christopher P., Sampled amplitude read channel employing noise whitening in a remod/demod sequence detector.
  31. Takashi, Terumi; Mita, Seiichi; Saito, Atsushi, Signal processing apparatus and a data recording and reproducing apparatus including local memory processor.
  32. Tomita, Tsuyoshi, Signal processing circuit with timing recovery PLL.
  33. Shafiee Hamid R. ; Rub Bernardo, Signal space detector for channels utilizing a code having time varying constraints.
  34. Chen Shin Chung ; Spagna Fulvio, Simple glitchless phase selection method for multiplexing the phase interpolated clocks.
  35. Hammons, Jr.,A. Roger; El Gamal,Hesham; Lee,Lin Nan; Kay,Stan; MacDonald,Andrew; Rozmaryn,Jack; Beidas,Bassel, Space-time coded OFDM system for MMDS applications.
  36. Rub Bernardo ; Shafiee Hamid R., Static viterbi detector for channels utilizing a code having time varying constraints.
  37. Behrens, Richard T.; Anderson, Kent D.; Armstrong, Alan J.; Dudley, Trent; Foland, Bill R.; Glover, Neal; King, Larry D., Synchronous read channel.
  38. Behrens,Richard T.; Anderson,Kent D.; Armstrong,Alan J.; Dudley,Trent; Foland,Bill R.; Glover,Neal; King,Larry D., Synchronous read channel.
  39. Castagnozzi,Daniel M.; Sorgi,Alan Michael; Yuan,Warm Shaw; Conroy,Keith Michael, System and method for non-causal channel equalization.
  40. Derras, Belkacem; Venkataramani, Raman; Radich, William Michael, Timing error processor that uses the derivative of an interpolator function.
  41. Razmik Karabed ; Jonathan J. Ashley ; James Wilson Rae, Trellis code for extended partial response maximum likelihood (EPRML) channel.
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