Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1983-10-12
1986-09-16
Malzahn, David H.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
G06F 1531
Patent
active
046126252
ABSTRACT:
A decimator of the type having a decimation factor of K, is implemented by a finite impulse response (FIR) filter network of length N. The filter network includes N/K accumulators each of which arithmetically combines samples of an input signal as multiplied by a corresponding set of K network branches, and provides a corresponding output sample. The N/K output samples from the accumulators are provided sequentially at the filter output prior to arrival of the next set of N input signal samples at the filter input.
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patent: 4020332 (1977-04-01), Crochiere et al.
patent: 4344149 (1982-08-01), Meeberg et al.
L. R. Rabiner, et al., "Terminology in Digital Signal Processing," Dec. 1972, IEEE Trans. Audio Electrocoust., v. AU-20 at 322-37.
R. E. Crochiere, et al., "Optimum FIR Digital Filter Implementations for Decimation, Interpolation, and Narrow-Band Filtering," Oct. 1975, IEEE Trans. Acoust., Speech & Signal Proc., v. ASSP-23 at 444-56.
Bede Liu, et al., "Calculation of Narrow-Band Spectra by Direct Decimation," Dec. 1978, IEEE Trans. Acoust., Speech & Signal Proc., v. ASSP-26 at 529-34.
R. E. Crochiere, et al., "Interpolation and Decimation of Digital Signals-A Tutorial Review," Mar. 1981, Proc. IEEE, v. 69 at 300-31.
L. R. Rabiner, et al., Multirate Digital Signal Processing, Prentice Hall (1983) at 280-83.
Bellanger et al., "Digital Filtering by Polyphase Network: Application to Sample-Rate Alteration & Filter Banks", IEEE Trans. on Acoustics, Speech, & Signal Processing, vol. ASSP-24, No. 2, Apr. 1976, pp. 109-114.
Goodman et al, "Nine Digital Filters for Decimation & Interpolation", IEEE Trans. on Acoustics, Speech, & Signal Processing, vol. ASSP-25, No. 2, Apr. 1977, pp. 121-126.
Malzahn David H.
Wavetek Rockland Scientific, Inc.
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