Auto-correlation filter
Patent 4766563 Issued on August 23, 1988. Estimated Expiration Date: 
October 8, 2005. 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.
October 8, 2005. 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 ReferencesAutocorrelation function parameter determination Correlator Patent #: 4404645 InventorApplicationNo. 06/785515 filed on 10/08/1985US Classes:708/319, Transversal708/426, Autocorrelation708/603Sum of products generationExaminersPrimary: Harkcom, Gary V.Assistant: Mai, Tan V. Attorney, Agent or FirmInternational ClassH03H 17/02 (20060101)Foreign Application Priority Data1984-10-17 JPAbstractA digital filter for obtaining the power of a filtered signal passing through a particular frequency band for each frame (short time division) includes an auto-correlation circuit for calculating the auto-correlation function of the input signal, and a sum of products calculator for obtaining the power of the signal by multiplying a linear coefficient with the auto-correlation function for the frame and summing the products together to get the power of the filtered signal.Other References
| |
