Multiwire linear equalizer for vector signaling code receiver

US9106465B2 · kind B2 · utility

Assignee

• Kandou Labs SA · CH

Inventor

• Christoph Walter · Stuttgart, DE

Key dates

• Filing date: Nov 21, 2014
• Grant date: Aug 11, 2015
• Expiry date: Nov 21, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L25/03885
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Continuous-time linear equalization of received signals on multiple wire channels while maintaining accurate common mode signal values. Multiwire group signaling using vector signaling codes simultaneously transmits encoded values on multiple wires, requiring multiple receive signals to be sampled simultaneously to retrieve the full transmitted code word. By misaligning transitions on multiple wires, skew introduces a transient common mode signal component that is preserved by using frequency-selective common mode feedback at the receiver to obtain accurate sampling results.