Data entry systems
Patent 3974496 Issued on August 10, 1976. Estimated Expiration Date: 
August 10, 1993. 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.
August 10, 1993. 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 2871289 3187321 3248703 3533076 3576433 3679875 3805255 InventorApplicationNo. 519250 filed on 10/30/1974US Classes:715/507, Form filling235/145R, KEYBOARDS345/168, Including keyboard715/531, Text715/705Help presentationExaminersPrimary: Trafton, David L.Attorney, Agent or FirmInternational ClassG06F 3/033 (20060101)Foreign Application Priority Data1972-12-19 UKAbstractThis invention relates to the presentation of at least two different sets of information to an observer simultaneously and in the same location, one superposed upon the other, one set of information concerning characters inscribed on a source carrier or document, the other set produced by a data processing machine.The invention concerns a data entry system in which data read by an operator from a source information carrier is fed by signals from a keyboard by the operator into a data processing machine and in which operator instructions concerning the keying of the source data are produced by the data processing machine and are visually displayed to the operator on a visual display device.According to the invention the visual display device is located in juxtaposition with the source information carrier and the visually displayed operator instructions. | |
