Digital filter with confidence input

US10277203B2 · kind B2 · utility

Assignee

• Microchip Technology Germany GmbH · DE

Inventors

• Axel Heim · Munich, DE
• Martin Hoch · Gilching, DE

Key dates

• Filing date: Jul 21, 2016
• Grant date: Apr 30, 2019
• Expiry date: Apr 8, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03H17/06
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A digital filter has an assigned filter function with assigned filter coefficients, an input receiving input samples, another input receiving confidence values, and an output. Each input sample value is associated to an input confidence value, wherein the filter output depends on the input samples, the input confidence values as well as the filter coefficients. The filter contains multiple accumulators, wherein an output sample is produced after a predetermined number of sample values wherein associated confidence values have been input to the filter.