The impulse response jumps rapidly upon the onset of the input impulse, and tails off over many samples. This is a simple one-tap lowpass filter; its time-domain response closely resembles an analog RC lowpass
Figure 3. Step response of the RC lowpass filter circuit of Figure 1, showing the definition of the 10-90% risetime. Measuring these two FOMs in the laboratory is actually a relatively simple effort for low bandwidth systems. The requirements are the circuit, or the system under test (CUT...
1. Calculate the impulse response of the RC lowpass filter shown in Figure 1. Determine the time constant for the circuit. 2. Find the step response of the circuit, and determine the 10-90% rise time. 3. Compare the time constant and rise time to the bandwidth of the lowpass filter....
2. The apparatus of claim 1, wherein the plurality of transmit equalization values correspond to a transmit Finite Impulse Response (FIR) filter. 3. The apparatus of claim 1, wherein the plurality of receive equalization values correspond to a receive DFE filter. 4. The apparatus of claim 1...
The speech coder provides speech spectrum information, including Line Spectral Frequency (LSF) information, for respective frames of speech. The LSF information is provided to the speech decoder. The speech decoder includes an LSF smoothing filter comprising an adaptive finite impulse response filter ...
An impulse generating circuit is operative in response to the heating element being moved to its film melt position for purposes of supplying an electric current pulse to the heating element. The current pulse has a time duration on the order of one half cycle of an AC voltage pulse and is...
Such an arrangement consists essentially of two synchronously rotating switches with low pass filters between them. There are as many low passes as there are contact pairs for the switches. ##SPC2## N Switching Positions, N Low Passes Circuit Diagram in Principle of an N-path Filter. It is...
where the analog-to-digital signal discriminator means is comprised by both the first and second analog-to-digital signal discriminator means, the first means includes a second order low pass filter and a first comparator, and the second means includes an RC timing network, a resistor-divider ne...
19. The method of claim 18, wherein the pulse position is modulated via a resistor capacitor lowpass filter having a time constant that is varied in response to the modulating signal, operable to selectively delay the pulse position in response to the modulating signal. 20. The method of ...
of the other one of said resistors; and a second rectifier connected in shunt of said one resistor and said second source of potential; whereby the condenser is charged and discharged between predetermined limits in finite time intervals in response to removal and replacement of said first shunt....