Data detector system

Details Data detector system Data detector system

2005-04-08

2008-10-28

Odom, Curtis B (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S340000, C704S242000

Reexamination Certificate

active

07443933

ABSTRACT:
A detector system detects values on a storage medium where there is ISI. The symbols are stored as pits in a close hexagonal lattice having u, v, and x dimensions at mutual 60° separations from an individual pit. The value for a particular symbol is determined by generating an estimate for the symbol in each of the u, v, and x dimensions. These estimates are used to generate a decision for the symbol as it is at the intersection of these dimensions. Thus a number of 1-dimensional detectors can be used although the platform is two-dimensional with ISI.

REFERENCES:
patent: 5774444 (1998-06-01), Shimano et al.
patent: 5959953 (1999-09-01), Alon
patent: 6233214 (2001-05-01), Hayashi
patent: 2002/0126773 (2002-09-01), Brunel
patent: 0789353 (1997-08-01), None
patent: WO02/054394 (2002-07-01), None

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