Digital signal processing apparatus for detecting a...

Details Digital signal processing apparatus for detecting a... Digital signal processing apparatus for detecting a...

G - Physics

01

R

G01R 23/02 (2006.01) G01R 23/167 (2006.01) G06F 17/10 (2006.01) H03H 17/02 (2006.01)

Patent

CA 2061849

A digital signal processing apparatus is disclosed. The apparatus is particularly suited for detecting a digital signal containing a frequency component in a noisy environment. It uses a distributed arithmetic concept for hardware relization. The use of specific coefficients and hardware arrangement has resulted in a reduction of memory location requirement. The invention finds the main application in the area of telephony in which detection of a variety of signal tones is required for various operations of telephone functions.

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