Teaching machine for studying foreign and native languages
Patent 4144656 Issued on March 20, 1979. Estimated Expiration Date: 
November 11, 1997. 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.
November 11, 1997. 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 3780450 Teaching machine Patent #: 3983639 Inventors
AssigneeApplicationNo. 05/850681 filed on 11/11/1977US Classes:434/157, Foreign434/169Electrical component included in teaching meansExaminersPrimary: Grieb, William H.Attorney, Agent or FirmInternational ClassesG09B 19/06 (20060101)G09B 7/00 (20060101) G09B 7/06 (20060101) Foreign Application Priority Data1976-11-12 SUAbstractA teaching machine for studying foreign and native languages comprises a task unit for a program of successive algorithmic exercises having unambiguous solutions, a machine control unit, an answer input unit, an input answer analysing unit, a signalling unit, a reference unit and a decoder. The task setting unit is provided with a detachable programmer made as a memory interacting with a memory unit of the task unit and the answer input unit and thus ensuring programming of any algorithmic exercise from any conventional textbook. The proposed invention permits wider didactic machine capabilities and its more economic operation. | |
