Walter R Strand

US Patent:

20090125259, May 14, 2009

Filed:

Jul 16, 2008

Appl. No.:

12/174588

Inventors:

RICHARD B. NICHOLLS - PORTLAND OR, US
WALTER R. STRAND - PORTLAND OR, US
LYNNE A. FITZSIMMONS - PORTLAND OR, US
DAVID W. SCHMIDT - PORTLAND OR, US
RONALD J. LARRICK - BEAVERTON OR, US

Assignee:

TEKTRONIX, INC. - Beaverton OR

International Classification:

G01R 23/16
G06F 19/00
G01R 15/08
G08B 21/00

US Classification:

702 76, 324 7619, 324115, 340540

Abstract:

Apparatus and methods are provided to allow multiple, possibly overlapping, regions of interest within a frequency spectrum to be defined, and managed. Each of these regions of interest may be selected for further testing or identification. Unselected regions are allowed to collapse into narrow bars so as not to interfere with the selected region. Multiple rows are provided to allow for the definition and selection of overlapping regions of interest. Furthermore, in some embodiments aid is provided for identifying the signal type by providing a list of signal type candidates based upon such parameters as region of interest bandwidth, region of interest center frequency and geographic location.

US Patent:

20130125006, May 16, 2013

Filed:

Nov 16, 2011

Appl. No.:

13/297877

Inventors:

Keith D. RULE - Beaverton OR, US
Michael J. WADZITA - Vancouver WA, US
Walter R. STRAND - Portland OR, US

Assignee:

TEKTRONIX, INC. - Beaverton OR

International Classification:

G06F 3/00

US Classification:

715738

Abstract:

Embodiments of this invention include a protocol sensitive visual navigation apparatus, and associated methods, for navigating and relating different protocol levels of a protocol. A test and measurement instrument can include the protocol sensitive visual navigation apparatus, which can facilitate analyzing, searching, and measuring various aspects of the different protocol layers and cross-correlating items from one protocol layer to another protocol layer. The type and characteristics of the analysis is informed by a selected protocol layer. Physical layer signals or events can be correlated to protocol level information, thereby increasing an understanding of the overall protocol and associated protocol layers and events.

US Patent:

20140136899, May 15, 2014

Filed:

Nov 13, 2012

Appl. No.:

13/675286

Inventors:

- Beaverton OR, US
Walter R. Strand - Portland OR, US
Keith A. Olson - Tigard OR, US
Michael J. Wadzita - Vancouver WA, US
Steve M. Mishler - Hillsboro OR, US

Assignee:

TEKTRONIX, INC. - Beaverton OR

International Classification:

G06F 11/26

US Classification:

714 37

Abstract:

Method and related systems are described for navigating through information related to the status of one or more layers of a signal, such as a serial or parallel bus. Information may be displayed by selecting fields within a visual depicted on an oscilloscope or similar measuring instrument. By selecting particular fields, and indicators, different aspects of a layer may be analyzed without the need to have extensive knowledge of the operation of the measuring instrument.