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:
Jun. 25, 2019
Filed:
Jun. 13, 2017
Applicant:
Analog Devices, Inc., Norwood, MA (US);
Inventors:
Arthur J. Kalb, Santa Clara, CA (US);
Yogesh Jayaraman Sharma, Santa Clara, CA (US);
Marvin Liu Shu, Daly City, CA (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); A61B 5/0428 (2006.01); A61B 5/0452 (2006.01); H03M 3/00 (2006.01); H03M 1/06 (2006.01); H03M 1/18 (2006.01); H03M 1/68 (2006.01);
U.S. Cl.
CPC ...
A61B 5/04288 (2013.01); A61B 5/0006 (2013.01); A61B 5/0452 (2013.01); H03M 3/414 (2013.01); H03M 1/0673 (2013.01); H03M 1/18 (2013.01); H03M 1/68 (2013.01); H03M 3/46 (2013.01);
Abstract
An analog front end (AFE) system for substantially eliminating quantization error or noise can combine an input of an integrator circuit in the AFE system with an input of the digital-to-analog converter (DAC) circuit in the feedback loop of the AFE system. By combining the input of the integrator with the input of the DAC circuit in the feedback loop, the in-band quantization noise of the filter can be substantially eliminated, thereby improving measurement accuracy.