U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Optical reading system

Patent 4300123 Issued on November 10, 1981. Estimated Expiration Date: Icon_subject January 2, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3553646

3573730

3579249

3618018

3800439

3868635

Image dissector with many apertures for Hadamard encoding
Patent #: 3969699
Issued on: 07/13/1976
Inventor: McGlaughlin

Character reading techniques
Patent #: 4021777
Issued on: 05/03/1977
Inventor: Shepard

Television-based alarm system
Patent #: 4148062
Issued on: 04/03/1979
Inventor: Kamin

Mark sense reader Patent #: 4153895
Issued on: 05/08/1979
Inventor: Weisbrod ,   et al.

Inventors

Assignee

Application

No. 06/000457 filed on 01/02/1979

US Classes:

235/436, Readout control235/456, Multiple column code382/317Sensor control (e.g., OCR sheet controls copier or fax)

Examiners

Primary: Boudreau, Leo H.

Attorney, Agent or Firm

International Classes

G06K 9/20 (20060101)
G06K 17/00 (20060101)
G06K 7/01 (20060101)
G06K 7/10 (20060101)
G06K 7/015 (20060101)

Abstract

A line scanning camera generates signal information indicative of marks on a scanned document and a selectable memory containing several document formats cause the signal information from the scanned document corresponding to the selected format to be transmitted for evaluation.

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