摘要:
The signal processing arrangement is an adaptive digital filter comprising a digital filter coefficient updating circuit (CUC) which supplies updated filter coefficients to a digital filter circuit proper (FC) and is controlled by an error signal (E) derived from the output signal of the filter proper. Each of these two circuits (CUC, FC) is constituted by a systolic processor with a plurality of interconnected cells each able to calculates a function of the type mn + p in a bit serial way and in such a way that bits of a same rank are successively calculated in the cells starting from right to left.
摘要:
A method of filtering an input sample stream having a downsampling rate is disclosed to generate an output sample stream having an upsampling rate that is less than the downsampling rate. The input sample stream is input to a rate change filter having multiple filter branches. The input sample stream is filtered at each of the multiple filter branches to output filtered sample substreams. Each of the multiple filter branches have filter coefficients corresponding to a different phase of the filter response. The filtered sample substreams are stored in a memory and the stored filtered sample substreams are combined to generate the output sample stream.
摘要:
Circuitry that accepts a data input (420) and an enable input (425), and generates an output sum (424) based on the data input includes an input stage circuit that includes an input register (401). The input register (401) accepts the enable input (425). The circuitry further includes a systolic register (413) operatively connected to the input stage circuit, and the systolic register (413) is operated without any enable connection. The circuitry further includes a multiplier (406) connected to the systolic register, which is configured to generate a product value. The circuitry further includes an output stage circuit that includes an adder (416) that calculates the output sum based least in part on the product value.
摘要:
Circuitry that accepts a data input (420) and an enable input (425), and generates an output sum (424) based on the data input includes an input stage circuit that includes an input register (401). The input register (401) accepts the enable input (425). The circuitry further includes a systolic register (413) operatively connected to the input stage circuit, and the systolic register (413) is operated without any enable connection. The circuitry further includes a multiplier (406) connected to the systolic register, which is configured to generate a product value. The circuitry further includes an output stage circuit that includes an adder (416) that calculates the output sum based least in part on the product value.