Band-pass filter for a pulse position modulation signal

Details Band-pass filter for a pulse position modulation signal Band-pass filter for a pulse position modulation signal

1996-06-13

1999-03-09

Adams, Russell

Photography

With data recording

Magnetically on film or film cassette

360 25, G03B 100

Patent

active

058813284

ABSTRACT:
A filtering system for use with a reader for reading pulse position modulation (PPM) binary data recorded on a record medium in a relative movement to the record medium, the filtering system includes a filter which filters PPM binary data; a detector which detects a relative movement speed between the reader and the record medium; and a setter which sets a band cutoff frequency of the filter in accordance with a detected relative movement speed and a data recording density.

REFERENCES:
patent: 5093751 (1992-03-01), Yuki et al.
patent: 5130728 (1992-07-01), Goto et al.
patent: 5302986 (1994-04-01), Kazami
patent: 5506644 (1996-04-01), Suzuki et al.
patent: 5519462 (1996-05-01), Spencer et al.
patent: 5640629 (1997-06-01), Hibino et al.
patent: 5649249 (1997-07-01), Yoshida
patent: 5664246 (1997-09-01), Ishihara et al.

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