Digital convolver matched filter and correlator
Patent 4025772 Issued on May 24, 1977. Estimated Expiration Date: 
May 24, 1994. 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.
May 24, 1994. 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 3303335 3351943 3670151 3717756 3760172 3774019 3777130 3831013 InventorApplicationNo. 05/595240 filed on 07/11/1975US Classes:708/420, Convolution708/314, Matched filter type708/422, Correlation708/620MultiplicationExaminersPrimary: Malzahn, David H.Attorney, Agent or FirmInternational ClassG06F 17/15 (20060101)AbstractA system for digital signal processing, including a random access memory (RAM) accessed by counters and used for storing and shifting signals in a convolver, correlator, matched filter or multiplier. An input signal and a reference signal are applied from opposite ends of the device such that the signals scan past each other at a relative velocity with respect to each other for obtaining either the convolution or correlation function of signals. The RAM operates as a shift register delay line and provides time scale inversion of signals when desired. | |
