Surface acoustic wave device
Patent 4745378 Issued on May 17, 1988. Estimated Expiration Date: 
September 18, 2007. 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 18, 2007. 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 ReferencesIsolated gate, programmable internal mixing saw signal processor Surface acoustic wave convolver with depletion layer control Patent #: 4473767 InventorsAssigneeApplicationNo. 07/099688 filed on 09/18/1987US Classes:333/196, With response weighting means310/313B, Interdigitated electrodes333/154Significant transmitting or receiving transducer structureExaminersPrimary: Blum, Theodore M.Attorney, Agent or FirmInternational ClassesH03H 9/00 (20060101)H03H 9/02 (20060101) H03H 9/64 (20060101) Foreign Application Priority Data1984-09-21 JPAbstractThe surface acoustic wave device includes a plurality of output gate electrodes provided between two signal input transducers on a piezoelectric layer on a semiconductor substrate, so that each output gate electrode receives a bias voltage unique to it and supplies an output signal based on the unique bias voltage. | |
