The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2000
Filed:
Aug. 03, 1998
Mei-Yi Chen, Hsinchu, TW;
Wei-Hung Tsai, Hsinchu, TW;
Tien-Hsiung Tung, Hsinchu, TW;
Pao-Ching Hu, Hsinchu, TW;
Fang Yu, Hsinchu, TW;
Hsiu-Chu Tsao, Hsinchu, TW;
Mei-Chuan Chen, Hsinchu, TW;
D-Link Corporation, Hsinchu, TW;
Abstract
A dual speed hub includes a CPU, two hubs of different transmission speeds, two MACs (media access controls), and a switch, wherein the CPU periodically sends a test packet in proper order through one MAC, one hub, the switch and the other hub to the other MAC, then checks the receiving condition and the content of the returned test packet, then determines the normality of the function of the switch subject to the receiving condition and the content of the returned test packet, and then provides a warning signal to a network management system when the switch is judged abnormal, informing the network manager to repair the switch.