Method and apparatus to read in bar-coded information
Patent 4140271 Issued on February 20, 1979. Estimated Expiration Date: 
March 18, 1996. 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.
March 18, 1996. 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 3627991 3743819 3774014 3868634 3870865 3876981 3879693 Bar-Code/MICR/OCR merge Object-identification system with sequentially activated photocell array Patent #: 4070584 InventorsAssigneeApplicationNo. 05/668036 filed on 03/18/1976US Classes:235/462.17, Using plural sensors235/440, Multiple sensor235/456, Multiple column code235/462.28Clock generating or sampling circuitExaminersPrimary: Canney, Vincent P.Attorney, Agent or FirmInternational ClassG06K 7/10 (20060101)Foreign Application Priority Data1975-04-17 JPAbstractBar symbols having different bar width for representing information are grouped and recorded on a surface of an object. A light-responsive sensor is swept automatically to repetitively scan the density of the surface-reflected light along the direction in which thegrouped bar symbols are arranged, while the object is moved orthogonally thereto. Electrical signals indicative of the bar width derived from the sensor are processed thereafter for the read-in of the coded data. | |
