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:
Oct. 28, 2025
Filed:
Feb. 06, 2024
Shanghai Jiao Tong University, Shanghai, CN;
Yuekang Guo, Shanghai, CN;
Jing Jin, Shanghai, CN;
Xiaoming Liu, Shanghai, CN;
Jianjun Zhou, Shanghai, CN;
SHANGHAI JIAO TONG UNIVERSITY, Shanghai, CN;
Abstract
A nested Δ-Σ analog-to-digital conversion system and method, compromising: an analog filter, an analog comparator, a first feedback digital-to-analog converter (DAC), a second feedback DAC placed in front of the first feedback DAC, and a digital filter and an MSB quantizer placed at the output of the analog comparator; wherein the input of the first feedback DAC is connected to the output of the analog comparator; the analog filter, the analog comparator, and the first feedback DAC form an internal analog Δ-Σ loop; the input of the second feedback DAC is connected to the output of the MSB quantizer; the output of the second feedback DAC is connected to the output of the first feedback DAC and to the input of the analog filter; and the second feedback DAC, the internal analog Δ-Σ loop, the digital filter, and the MSB quantizer form an external hybrid Δ-Σ loop.