Sample rate converter

Details Sample rate converter Sample rate converter

1992-12-17

1994-08-02

Malzahn, David H.

Boots, shoes, and leggings

36472416, G06F 1531

Patent

active

053351940

ABSTRACT:
A sample rate converter comprises a first finite impulse response digital filter which effects a sampling rate doubling operation, which has a relatively large number of taps and whose output is connected to a second FIR digital filter having a relatively low number of variable coefficient taps. The frequency response of the first FIR digital filter is arranged to compensate for the frequency response of the second FIR digital filter.

REFERENCES:
patent: 4020332 (1977-04-01), Crochiere et al.
patent: 4270026 (1981-05-01), Shenoi et al.
patent: 4302631 (1981-11-01), Shenoi et al.
patent: 4460890 (1984-07-01), Busby
patent: 4472785 (1984-09-01), Kasuga
patent: 4748578 (1988-05-01), Lagadec et al.
patent: 5204827 (1993-04-01), Fujita et al.
By H. Urkowitz, "Parallel Realizations of Digital Interpolation Filters for Increasing the Sampling Rate", Feb. 1975, pp. 146-154, vol. CAS-22, No. 2.
By R. Crochiere et al., "Optimum FIR Digital Filter Implementations for Decimation, Interpolation, and Narrow-Band Filtering", Oct. 1975, pp. 444-456, vol. ASSP-23, No. 5.

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