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:
May. 04, 1993
Filed:
Feb. 03, 1992
Masaji Ueno, Tokyo, JP;
Akihito Nishikawa, Kanagawa, JP;
Shinichi Iida, Tokyo, JP;
Hajime Shiraishi, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Abstract
It is an object of this invention to provide a novel network interface system which is able to connect automatically to the respective network stations having different data transfer speeds, in order to avoid the above problems. According to this invention, there is provided a detector and a selector in the communication interface to automatically select the appropriate data transfer speed. In the above structure, the speed of communication data transferred by a network is one of two detected by the detector which is able to detect a transfer speed and provide outputs at a first level signal when the transfer speed is at one level and outputs a second level signal when it is at a second level. The selecting means selects the frequency to connect a network station in response to the signal output from the detector. As a result, users need not select the module by themselves, the system automatically select the module.