US Patent 7978104 Compensation of mismatch errors in a time-interleaved analog-to-digital converter

Patent 7978104 was granted and assigned to Signal Processing Devices Sweden on July, 2011 by the United States Patent and Trademark Office.

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Signal Processing Devices Sweden

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

79781040

Patent Inventor Names

H{dot over (a)}kan Johansson0

Date of Patent

July 12, 2011

Patent Application Number

126654660

Date Filed

June 21, 2007

Patent Primary Examiner

Howard Williams

Patent abstract

A method for the compensation of frequency-response mismatch errors in M-channel time-interleaved ADCs. The compensation is done utilizing a technique that makes use of a number of fixed filters, that approximate differentiators of different orders, and a few variable multipliers that directly correspond to parameters in polynomial models of the M channel frequency responses. A compensated M-channel time-interleaved ADC is based on and can perform the method.

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