David A Plettner

US Patent:

20030221180, Nov 27, 2003

Filed:

May 23, 2002

Appl. No.:

10/154277

Inventors:

Dean Lindsay - Milpitas CA, US
Wayne Ashby - San Jose CA, US
David Plettner - Cupertino CA, US

International Classification:

G06F017/50

US Classification:

716/019000, 716/020000

Abstract:

Disclosed is a method and device for creating probe masks. In one embodiment, the mask aids in locating and accessing a pad on a PCB to allow for the measurement a signal at the pad using a probe. The mask is a perforated insulating sheet having holes corresponding to the spacing of at least some of the conductive pads on the PCB, and at least some of the holes are marked to aid in signal measurement. A processing system is used to assist in creating the markings.

US Patent:

20120311267, Dec 6, 2012

Filed:

May 31, 2011

Appl. No.:

13/149493

Inventors:

Blaine D. Gaither - Fort Collins CO, US
David A. Plettner - Cupertino CA, US

International Classification:

G06F 12/08

US Classification:

711122, 711E12022, 711E12024, 711E12033

Abstract:

A processor transmits clean castout messages indicating that a cache line is not dirty and is no longer being stored by a lowest level cache of the processor. An external cache receives the clean castout messages and manages cache lines based in part on the clean castout messages.