THOMAS RICHARD BUTLER
Pilots at Palomino Rd, Scottsdale, AZ
License number
Arizona A0266019
Issued Date
Nov 2016
Expiration Date
May 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
10568 E Palomino Rd, Scottsdale, AZ 85258
Professional information
Ultra Linear Frequency Discriminator Circuitry
US Patent:
4525675, Jun 25, 1985
Filed:
Apr 7, 1983
Appl. No.:
6/483036
Inventors:
Carl T. Richmond - Scottsdale AZ
Thomas A. Butler - Scottsdale AZ
Joseph E. Andrews - San Jose CA
Thomas A. Butler - Scottsdale AZ
Joseph E. Andrews - San Jose CA
Assignee:
Motorola, Inc. - Scahumburg IL
International Classification:
H03K 500, H03K 1100, H03K 906
US Classification:
328140
Abstract:
Signals to be discriminated are supplied through a controllable attenuator and power splitter to first and second discriminators with response slopes which are equal and of opposite sign. The outputs of the discriminators are summed and a reference signal is subtracted from the sum to produce a control signal which adjusts the input attenuator to maintain the amplitude of the input signal constant. The outputs of the discriminators are also subtracted to provide an output signal which is a linear function of frequency and independent of input amplitude.