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Title: US3978450: Image character reader system
[ Derwent Title ]

Country: US United States of America

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6 pages

Inventor: Sanner, Medford Duane; Irving, TX
Lafevers, Jim O.; Richardson, TX
Mirci, Sauas; Mission Viejo, CA

Assignee: Recognition Equipment Incorporated, Irving, TX
other patents from RECOGNITION EQUIPMENT INCORPORATED (467235) (approx. 145)
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Published / Filed: 1976-08-31 / 1974-05-30

Application Number: US1974000474383

IPC Code: Advanced: G06K 7/08; G06K 9/00;
IPC-7: G06K 9/12;

ECLA Code: G06K9/18M; G06K7/08C2D;

U.S. Class: Current: 382/320; 235/449; 360/122; 382/137;
Original: 340/146.3C; 235/061.11D; 360/122;

Field of Search: 340/146.3 C,146.3 D,146.3 AG,146.3 J,146.3 AC,146.3 MA,146.3 R 360/129,120,121,122 235/61.11 E,61.11 D

Priority Number:
1974-05-30  US1974000474383

Abstract: An improved magnetic image character reading system which produces high signal levels, eliminates dead spots between sample tracks for full resolution. Two sets of read heads are positioned in a spaced apart, staggered arrangement such that one set is adjacent the other with elements of the first set staggered to overlap the tracks read by the second set. Scanned signals generated while passing magnetized characters first past one set and then past the second set of heads are combined after delay of the signal generated by the first set of heads to compensate for spacing between the sets of heads.

Attorney, Agent or Firm: Richards, Harris and Medlock ;

Primary / Asst. Examiners: Boudreau, Leo H.;

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 6 claims
What is claimed is:     1. A reading system for sensing magnetic characters on a document transport past a read station which comprises:
  • a. a first set of read head elements each of a selected dimension spaced laterally one from another less than the selected dimension across a path traversed by said document at said read station to sense magnetic material on a first set of spaced, parallel tracks,
  • b. a second set of read head elements each of a selected dimension spaced laterally one from another less than the selected dimension across said path downstream from said first set in a partially overlapping relation with respect to said first set to sense magnetic material along parallel tracks intermediate and in part common to said first set of tracks, and having a center line offset from the center line of the next read head of said first set less than the selected dimension,
  • c. means to delay signals from said first set, and
  • d. means to combine signals from said second set and from said delay means.

Background / Summary: Show background / summary

Drawing Descriptions: Show drawing descriptions

Description: Show description

Forward References: Show 13 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (13)   |   Backward references (7)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 24pp US3104369  1963-09 Rabinow et al.   High-speed optical identification of printed matter
Get PDF - 6pp US3104381  1963-09 Gottschalk et al.   Magnetic record transducer
Get PDF - 5pp US3146422* 1964-08 Greanias et al.    
Get PDF - 4pp US3195119  1965-07 Worosz   Magnetic transducer head assembly
Get PDF - 7pp US3348201* 1967-10 Colburn et al.    
Get PDF - 8pp US3432809  1969-03 Reumerman et al.   DEVICE FOR CHARACTER RECOGNITION
Get PDF - 11pp US3710319  1973-01 Miller et al.  Scanamation Corporation OPTICAL CHARACTER RECOGNITION SYSTEM
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Foreign References: None

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