Key-in device
Patent 4578811 Issued on March 25, 1986. Estimated Expiration Date: 
September 14, 2003. 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.
September 14, 2003. 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 ReferencesDevice for the input of alphanumerical data for apparatus of small size Handwritten character identification Chinese/Kanji on-line recognition system Patent #: 4365235 InventorAssigneeApplicationNo. 06/532501 filed on 09/14/1983US Classes:382/182, Limited to specially coded, human-readable characters382/187, On-line recognition of handwritten characters382/202Linear stroke analysis (e.g., limited to straight lines)ExaminersPrimary: Boudreau, Leo H.Attorney, Agent or FirmInternational ClassesG06F 3/023 (20060101)G06K 9/68 (20060101) Foreign Application Priority Data1982-09-21 JPAbstractA key-in device has a key-in section with a matrix array of keys. A key-actuated signal corresponding to a handwritten character input by the key-in section is input to an input pattern memory of a character recognition section, where an input pattern is formed and stored. The character recognition section has a standard pattern memory, having stored the standard pattern of a character to be recognized. A first feature detecting section extracts feature data from the input pattern in the input pattern memory. A first matching section detects a standard pattern coincident with the feature data extracted from the first standard pattern memory, and produces the character data input by the key-in section as a recognizable character. | |
