Random noise generation

US11550547B2 · kind B2 · utility

Assignee

• Cisco Technology, Inc. · US

Inventors

• Mohammad Ali Sedaghat · Erlangen, DE
• Christopher Fludger · Nuremberg, DE
• Andreas Bisplinghoff · Forchheim, DE
• Gregory Bryant · Raleigh, US

Key dates

• Filing date: Jan 2, 2020
• Grant date: Jan 10, 2023
• Expiry date: Jan 17, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03K3/84
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A random noise generator for generating a plurality of random noise samples per clock cycle, the noise samples having a distribution. The random noise generator comprises at least a first comparator unit and a second comparator unit, the first comparator unit configured to generate a first plurality of samples representing a high-probability part of the distribution and the second comparator unit configured to generate a second plurality of samples representing a low-probability part of the distribution; and a random selection unit connected to at least the first comparator unit and the second comparator unit. The random selection unit is configured to receive the first plurality of samples generated by the first comparator unit and the second plurality of samples generated by the second comparator unit, to output a random selection of samples from the first plurality of samples and the second plurality of samples.