Noise reduction and spur and distortion cancellation techniques

US11146276B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Niranjan Karandikar · Chandler, US
• Mohammed Alam · Chandler, US
• Gregory Chance · Oberhaching, DE
• Armando Cova · Chandler, US
• Michael Milyard · Chandler, US
• John J. Parkes, Jr. · Boynton Beach, US
• Ashoke Ravi · Portland, US
• Daniel B. Schwartz · Scottsdale, US
• Dong Jun Yang · Greensboro, US

Key dates

• Filing date: Mar 30, 2018
• Grant date: Oct 12, 2021
• Expiry date: Mar 30, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L25/02
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A wireless communication device can include an antenna configured to sense a radio frequency (RF) signal. The wireless communication device can include signal estimation circuitry configured to generate estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include multi-tone generator circuitry coupled to the signal estimation circuitry and configured to generate a composite spur cancellation signal based on the estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include adder circuitry configured to subtract the spur cancellation signal from the RF signal to generate a spur cancelled signal.