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Electrical Computers: Arithmetic Processing And Calculating > Electrical Analog Calculating Computer > Particular Function Performed > Filtering FilteringFiltering patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.08/24/06 - 20060190520 - Analog filter An analog filter includes a first arithmetic operation section 2-1 having a plurality of sets of processing circuit being cascade connected, each processing circuit having an S/H circuit of plural stages for holding a ΔΣ-modulated signal and an analog adder for adding the input and output signals of the S/H ... 03/09/06 - 20060053193 - Complex multiple feedback filter A complex filter includes an I channel having a first I channel output and a second I channel output and a Q channel having a first Q channel output and a second Q channel output. The second I channel output is input to the Q channel through a first passive ... 02/16/06 - 20060036668 - High speed multiplier A current summing FIR filter can be implemented with multiple differential input stages and variable tail currents. The variable tail currents can be used to appropriately weight the present and previous digital input signals. The weighted outputs of the differential transistor pairs can be summed to provide a filtered output ... 08/04/05 - 20050171992 - Signal processing apparatus, and voltage or current measurer utilizing the same A signal processing apparatus produces a signal representing the effective value of an inputted alternating signal. The apparatus includes a square calculator, a filter and a square-root calculator. The square calculator produces a square signal representing several squared values of the inputted alternating signal. The filter extracts a DC component ... ### FreshPatents.com Support |