Combined asynchronous-synchronous document scanner

Details Combined asynchronous-synchronous document scanner Combined asynchronous-synchronous document scanner

1989-08-03

1991-08-27

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358431, H04N 314

Patent

active

050438271

ABSTRACT:
An asynchronous document scanner with one dimensional scanning array, a movable scan carriage supporting the array for scanning movement, a variable interpolator for interpolating partial lines of image signals from the array with preceding lines of image signals to provide a composite image signal lines, and a control responsive to the timing of the start integration signal to the array to vary the interpolation coefficient of the interpolator.

REFERENCES:
patent: 4511989 (1985-04-01), Sakamoto
patent: 4591727 (1986-05-01), Gaebelein et al.
patent: 4614977 (1986-09-01), Kawahara et al.
patent: 4644409 (1987-02-01), Fuchs
patent: 4651223 (1987-03-01), Sasaki et al.
patent: 4680720 (1987-07-01), Yoshii et al.
patent: 4710817 (1987-12-01), Ando
patent: 4712141 (1987-12-01), Tomohisa et al.
patent: 4771333 (1988-09-01), Michaels
patent: 4875099 (1989-10-01), Sakai et al.
patent: 4878119 (1989-10-01), Beikirch et al.

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