Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2006-07-11
2006-07-11
Ghebretinsae, Temesghen (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C369S059220, C369S053350, C714S795000
Reexamination Certificate
active
07076006
ABSTRACT:
A data reproducing method reproduces data corresponding to a state-transition pass selected as being most likely according to a Viterbi decoding algorithm from a reproduction signal supplied from a recording medium. The data reproducing method comprises the steps of detecting at least one state of the reproduction signal according to data used for selecting the state-transition pass, calculating an average value of the reproduction signal in the state detected by the step of detecting, and following a fluctuation amount of a direct current component of the reproduction signal according to the average value.
REFERENCES:
patent: 5506827 (1996-04-01), Tobita
patent: 5508993 (1996-04-01), Hayashi et al.
patent: 5566155 (1996-10-01), Hayashi
patent: 6603722 (2003-08-01), Taguchi et al.
patent: 6614841 (2003-09-01), Ohta
patent: 6618337 (2003-09-01), Miyashita et al.
patent: 6674707 (2004-01-01), Ogura et al.
patent: 6674816 (2004-01-01), Shieh
patent: 6807134 (2004-10-01), Nakajima et al.
patent: 6819724 (2004-11-01), Hayami et al.
patent: 6826722 (2004-11-01), Miyauchi et al.
patent: 6836511 (2004-12-01), Marukawa
patent: 07262694 (1995-10-01), None
patent: 09-007313 (1997-01-01), None
patent: 09245439 (1997-09-01), None
patent: 09-330565 (1997-12-01), None
patent: 10172238 (1998-06-01), None
Low power techniques and design tradeoffs in adaptive FIR filtering for PRML read channels Muhammad, K. et al; Low Power Electronics and Design, 2000. ISLPED '00. Proceedings of the 2000 International Symposium on Jul. 26-27, 2000, pp. 262-267.
A 450 Mbit/s EPR4 PRML read/write channel; Demicheli, M. et al; Custom Integrated Circuits, 1999. Proceedings of the IEEE 1999 May 16-19, 1999 pp. 317-320.
Fujiwara Toru
Taguchi Masakazu
Ghebretinsae Temesghen
Greer Burns & Crain Ltd.
LandOfFree
Data reproducing method and device reproducing data... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data reproducing method and device reproducing data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data reproducing method and device reproducing data... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3613887