One-dimensional and two-dimensional data symbol reader
Patent 5780831 Issued on July 14, 1998. Estimated Expiration Date: 
July 3, 2016. 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.
July 3, 2016. 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 ReferencesVariable focus optical system for data reading Encoded symbol reader Patent #: 5428212 InventorsAssigneeApplicationNo. 674835 filed on 07/03/1996US Classes:235/462.1, Means to decode a 2-D bar code235/462.07Means to decode multiple types or formats of bar code symbols (e.g., UPC, JAN, EAN, etc.)ExaminersPrimary: Hajec, Donald T.Assistant: Minh, Le Thien Attorney, Agent or FirmForeign Patent References
International ClassG06K 007/10Foreign Application Priority Data1995-07-12 JPAbstractA data symbol reader for reading a one-dimensional data symbol and a two-dimensional data symbol includes first and second image pickup devices, both having a light receiving surface to receive light reflected from the one-dimensional and two-dimensional data symbols. An optical system respectively converges images of the one-dimensional and two-dimensional data symbols onto the light receiving surfaces of the first and second image pickup devices. A signal processing device is provided for decoding the one-dimensional and the two-dimensional data symbols from outputs of the first and second image pickup devices. | |
