JOSEPH MICHAEL STEIM
Pilots in Shirley, MA
License number
Massachusetts A4309462
Issued Date
Nov 2015
Expiration Date
Nov 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
PO Box 1249, Shirley, MA 01464
Professional information
Analog To Digital Converter Employing Delta-Sigma Modulation
US Patent:
4866442, Sep 12, 1989
Filed:
Nov 16, 1987
Appl. No.:
7/120924
Inventors:
Joseph M. Steim - Shirley MA
Erhard Wielandt - Geroldsvil, CH
Erhard Wielandt - Geroldsvil, CH
International Classification:
H03M 302
US Classification:
341143
Abstract:
Analog-to-digital conversion apparatus provides high-resolution conversion of input signals. Summing elements combine an analog input signal and an analog offset signal to generate a residual signal. A first integrator element integrates the residual signal, and a second integrator processes the first integrator output signal to produce a second integrator output signal. A comparator processes the first and second integrator output signals to produce a digital offset signal, the second integrator output signal is converted into a digital representation, and output elements process the digital offset signal and second integrator output signal to produce a digital representation of the analog input signal.