Digital sampling rate converter

US5559513A · kind A · utility

Assignee

• Deutsche Thomson-Brandt GmbH · DE

Inventors

• Karin Rothermel · Villingen, DE
• Heinrich Schemmann · Villingen-Schwenningen, DE

Key dates

• Filing date: Aug 8, 1994
• Grant date: Sep 24, 1996
• Expiry date: Aug 8, 2014

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03H17/0657
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A sample rate converter includes a first interpolator which generates samples intermediate samples provided at a first sample rate. A second interpolator, using the intermediate samples, generates further samples at a second sample rate which are intermediate the intermediate samples. An accumulator which accumulates a value representing the ratio of the first and second sample rates, generates scale factors for performing the interpolations, and a clock signal at the second sample rate.