Jay A Marshall

US Patent:

20020121913, Sep 5, 2002

Filed:

Dec 28, 2000

Appl. No.:

09/750201

Inventors:

R. Miller - Austin TX, US
Tom Dolbear - Austin TX, US
Jay Marshall - Austin TX, US
Paul Hokanson - Bastrop TX, US

Assignee:

Advanced Micro Devices, Inc. - Sunnyvale CA

International Classification:

G01R031/02

US Classification:

324/760000

Abstract:

A burn-in tester that provides independent control of the devices under test. The various operating parameters such as temperature, voltage, frequency of operation or test pattern being applied can be independently changed on one device without affecting the operating parameters of the other devices. Thus, e.g., the amount of cooling applied to one device is independent of the amount of cooling applied to another device. In addition, the testing being done on each device may be independently controlled. Thus, a test can be changed on one of the devices under test without affecting the tests being run on any of the other devices. Similarly, the voltage and frequency of operation can be controlled independently to allow for changes to the voltage and/or frequency of one device without affecting those parameters on other devices being tested.

US Patent:

56665458, Sep 9, 1997

Filed:

May 11, 1994

Appl. No.:

8/240953

Inventors:

Jay A. Marshall - Taylors SC
Thomas F. Heil - Easley SC
Donald H. Parsons - Liberty SC

Assignee:

NCR Corporation - Dayton OH

International Classification:

G06F 1338

US Classification:

395304

Abstract:

In a computer system, a direct access, independently arbitrated video bus (connected to a personal computer (PC) -compatible video subsystem) is directly coupled to one or more dual-ported processors to eliminate video cycle traffic over the system bus or buses and I/O bus, thereby improving system performance. The preferred embodiment architecture has, in addition to the video bus, multiple processors coupled to at least two independently arbitrated system buses which are coupled to at least two independently arbitrated input/output (I/O) buses, to provide for rapid bus information signal transfer rates.