Kelly F Garrison

US Patent:

20130141466, Jun 6, 2013

Filed:

Dec 6, 2011

Appl. No.:

13/312580

Inventors:

JEFFREY D. EARLS - PORTLAND OR, US
FRANKLIN M. BORDEN - SHERWOOD OR, US
KELLY F. GARRISON - TIGARD OR, US

Assignee:

TEKTRONIX, INC - BEAVERTON OR

International Classification:

G09G 5/373

US Classification:

345660

Abstract:

The described test and measurement instrument includes a processor for generating a bitmap image from an input test signal, a user interface for identifying a portion of the bitmap image, and a second image generator structured to generate a second image from the identified portion of the bitmap image. The second image may be a zoomed image from the original bitmap, and the images may be time-corrected before being displayed.

US Patent:

20220216581, Jul 7, 2022

Filed:

May 14, 2020

Appl. No.:

17/611422

Inventors:

- New Albany IN, US
Shashi CHUGANEY - Newberg OR, US
Kelly GARRISON - Portland OR, US
Cindy Lee DIEGEL - Portland OR, US
James Alexander MOSS - Newberg OR, US
Francisco NOYOLA - Sherwood OR, US
Yasuo SASAKI - Yokohama, JP
Scott MCMORROW - New Albany IN, US

International Classification:

H01P 5/08

Abstract:

Radio frequency (RF) waveguides and related interconnect members are disclosed. The interconnect members can have a smaller footprint than WR15 flanges. Further, the interconnect members can be configured to mate with complementary interconnects without undergoing substantial relative rotation.

US Patent:

20140139279, May 22, 2014

Filed:

Nov 19, 2012

Appl. No.:

13/681278

Inventors:

Kelly F. GARRISON - Tigard OR, US
Raymond L. VEITH - Portland OR, US
Gordon A. OLSEN - Tigard OR, US
Jeffrey D. EARLS - Portland OR, US

Assignee:

TEKTRONIX, INC - Beaverton OR

International Classification:

H03H 11/20

US Classification:

327238

Abstract:

An automatic quadrature network with amplitude and phase detection produces quadrature signals for an input oscillator signal, the quadrature signals being equal in amplitude and having ideal quadrature phase between them. An RC circuit provides one quadrature path, and a CR circuit provides another quadrature path. The outputs from the RC/CR circuits are amplitude detected to produce an amplitude control signal. The outputs also are amplitude limited, and the phase between the limiter outputs is detected to produce a phase control signal. The amplitude and phase control signals are combined to generate respective control signals for the RC/CR circuits to automatically align them so that the quadrature signals are of equal amplitude and ideal quadrature phase.