Patent Number: 6,310,566

Title: Digital data sample rate conversion system with delayed interpolation

Abstract: A sample rate conversion system converts data of a first sample rate to data of a different second sample rate. The system involves an interpolator, operating at the first sample rate and includes a first interpolation network and a delay network. The first interpolation network interpolates the first sample rate data to provide upsampled interpolated data samples according to a first sample spacing. The delay network interpolates the upsampled interpolated data to provide delayed upsampled interpolated data samples, according to a second sample spacing of higher resolution than the first sample spacing, and preceding and succeeding an original sample position. The system also includes a digital filter operating at the second sample rate for filtering the higher resolution data samples to provide the second sample rate data.

Inventors: McNeely; David Lowell (Indianapolis, IN)

Assignee: Thomson Licensing S.A.

International Classification: H03H 17/06 (20060101); H03M 007/00 (); H03M 001/00 ()

Expiration Date: 10/30/2018