Paul B Nguyen

US Patent:

6230299, May 8, 2001

Filed:

Mar 31, 1998

Appl. No.:

9/052895

Inventors:

Michael C. McSherry - Portland OR
Richard E. Strobel - Vancouver WA
Robert A. Todd - Tigard OR
Paul M. Nguyen - Beaverton OR

Assignee:

Mentor Graphics Corporation - Wilsonville OR

International Classification:

G06S 1750

US Classification:

716 1

Abstract:

A data extraction tool is provided to extract filtered connectivity and geometrical data for specified layout cell hierarchies of an integrated circuit (IC) design, e. g. a deep sub-micron IC design. The connectivity and geometrical data for each layout cell hierarchy are extracted at least in part in accordance with specified parasitic effect windows. In one embodiment, the data extraction tool includes a filtered extraction function that operates to extract connectivity and geometrical data for layout nets of each layout cell hierarchy of the IC design, one or more layout nets at a time. Additionally, one or more filtered databases are provided to store the filtered connectivity and geometrical data of the layout cell hierarchies.

US Patent:

20150107633, Apr 23, 2015

Filed:

Oct 23, 2014

Appl. No.:

14/522130

Inventors:

Garrett Hartwell - Portland OR, US
Paul Nguyen - Portland OR, US
Terry L. Briscoe - Portland OR, US
Karsten D. Zuendel - Portland OR, US

International Classification:

B08B 1/02
B08B 1/04

US Classification:

134122 R

Abstract:

Exercise mat cleaning systems including a housing including an inlet for feeding the exercise mat into the housing, a debris removal subsystem for removing larger debris from the surfaces of the mat, a disinfection subsystem for removing smaller debris and contaminants from the surfaces of the mat, an outlet for feeding the exercise mat out of the housing are shown and described. In some examples, cleaning systems include an approved mat detection subsystem. In some further examples, cleaning systems include a drying subsystem for drying the surfaces of the mat. In even other examples, the cleaning systems can include a mat unrolling subsystem and/or a mat rolling subsystem.