The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Dec. 02, 2010
Fredrik Larsen, Trondheim, NO;
Frode Milch Pedersen, Trondheim, NO;
Jan Rune Herheim, Trondheim, NO;
Ronan Barzic, Tiller, NO;
Fredrik Larsen, Trondheim, NO;
Frode Milch Pedersen, Trondheim, NO;
Jan Rune Herheim, Trondheim, NO;
Ronan Barzic, Tiller, NO;
Atmel Corporation, San Jose, CA (US);
Abstract
A low-cost charge injection mechanism may enable oversampling to be used on low frequency signals by injecting dither noise into the ADC input. The dither noise can reduce the quantization noise allowing even direct current (DC) signals to be oversampled correctly. A low-cost charge injection mechanism can also be used to improve the ENOB by characterizing the ADC and digitally correcting the converted signal for non-linearity errors such as INL. Reducing INL errors may also allow a higher degree of oversampling to be used to further improve the ENOB.