Chun M Wu

US Patent:

6783367, Aug 31, 2004

Filed:

Feb 19, 2002

Appl. No.:

10/079227

Inventors:

Geefu Wang - Fremont CA
Douglas Hong - So. San Francisco CA
Chun Wu - Alameda CA
Thuy Le - Santa Clara CA
Yu-Tien Chi - Fremont CA

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G09B 2300

US Classification:

434276, 434219, 434350, 434362, 434365, 382133, 705 2

Abstract:

One embodiment of the present invention provides a global product services electronic laboratory (E-Lab). For example, the E-Lab may be an on-line virtual laboratory for company employees and/or field engineers for learning how to implement new technology products via actual âhands-onâ configurations and troubleshooting. Specifically, the E-Lab of the present embodiment enables an authorized user to utilize a computing device to remotely access the E-Lab via the Internet, a company network or a dial-up connection. Once communicatively coupled to the E-Lab, the user is provided a variety of different topics and categories associated with the products and/or equipment labs currently available within the E-Lab. After selecting one of the topics or categories, the user may be provided more specific information regarding tutorials and/or troubleshooting corresponding to the selected lab equipment. Additionally, the user is able to directly interact with the actual equipment on-line thereby having a âhands-onâ learning experience.

US Patent:

53655265, Nov 15, 1994

Filed:

Dec 18, 1992

Appl. No.:

7/993100

Inventors:

Chun Wu - Alameda CA

Assignee:

Amdahl Corporation - Sunnyvale CA

International Classification:

G06F 1134

US Classification:

371 165

Abstract:

A trace system for selectively storing in tags stored in a TAG IN register and out tags stored in a TAG OUT register of an I/O channel controlled by an I/O channel controller, the trace system comprising a first means for generating a first signal whenever an in tag is changed in the TAG IN register, a second means for generating a second signal whenever out tags are written into the TAG OUT register, a storage means for storing the in tags and the out tags and a control means for storing, in response to a first or second signal, the in tags stored in the TAG IN register and the out tags stored in the TAG OUT register present when the first or second signal is generated. Means are further provided for allowing the storage means to be read by the I/O channel controller when an interface control check error is detected by the I/O channel in response to I/O channel interface malfunction. The trace system, upon the occurrence of an interface control check error, will store the tags presently stored in the TAG IN and TAG OUT registers and will mark those tags such that the system will be able to identify which tags were stored in the TAG IN and TAG OUT registers associated with the interface control check error.