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:
Jul. 05, 1994
Filed:
Oct. 15, 1992
Applicant:
Inventors:
Naoki Shimosaka, Tokyo, JP;
Katsumi Emura, Tokyo, JP;
Assignee:
Nec Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
359125 ; 359165 ;
Abstract
When a data transmission request is received in a node apparatus in an optical LAN system, the node apparatus receives a light of a wavelength assigned to a destinated node apparatus. Where the received light is not a modulated light, the received light will be modulated by a transmitting data, and where the received light is a modulated light, the received light is passed through the transmitting node apparatus without a further modulation.