Class / Patent application number | Description | Number of patent applications / Date published |
398168000 | Passive system | 6 |
20080232819 | Pon System and Optical Network Unit Connecting Method - In a passive optical network system, upon detecting a connection with one of a plurality of optical network units at the time of performing autonomous ranging, an optical line termination requests for subscriber recognition information from the connected optical network unit, searches a database, to thereby specify the subscriber and the service details, and performs bandwidth setting and connection setting based on specified service details. The optical network unit stores the subscriber recognition information input by a subscriber, in association with the subscriber information. | 09-25-2008 |
20080240730 | FIBER CONNECTIVITY FOR EMERGENCY RESPONSE PERSONNEL - A network may include fiber optic lines and fiber distribution panels connected by the one or more fiber optic lines. At least one of the fiber distribution panels may include an optical fiber connector designated as a connector that is for emergency use. The network may further include a plurality of optical network terminals located at premises of subscribers to the network. | 10-02-2008 |
20080279567 | ASYMMETRIC ETHERNET OPTICAL NETWORK SYSTEM - An Ethernet-based optical network system includes a first optical transmitter that can receive a first electric signal and to produce a first optical signal, a first optical receiver that can convert the first optical signal to a second electric signal. The first electric signal, the first optical signal, and the second electric signal have a first transmission baud rate. A down converter can receive a third electric signal having the first transmission baud rate and to produce a fourth electric signal having a second transmission baud rate. A second optical transmitter can receive the fourth electric signal and produce a second optical signal having the second transmission baud rate. A second optical receiver can convert the second optical signal to a fifth electric signal having the second transmission baud rate. An up converter can convert the fifth electric signal to a sixth electric signal having the first transmission baud rate. | 11-13-2008 |
20090154939 | Method of allocating bandwidth of passive optical network - In a method of allocating a bandwidth of a passive optical network, downward data are transmitted by varying a wavelength based on a wavelength division method and upward data are transmitted using a time division method. Thereby, by efficiently allocating a network bandwidth, data can be transmitted and by realizing statistical multiplexing, transmission efficiency can be improved. | 06-18-2009 |
20100092182 | METHOD AND SYSTEM FOR FIBER-OPTIC MONITORING OF SPATIALLY DISTRIBUTED COMPONENTS - A system for monitoring ancillary elements of an electric power distribution network, includes an optical fiber path associated with the ancillary elements to be monitored, respective optical branches branching from the optical fiber path, wherein each optical branch includes at least one passive optical attenuator operatively coupled to, and having an attenuation adapted to change in response to a change in operating conditions of the respective ancillary element, and an optical reflector; an optical radiation source adapted to inject optical radiation into the optical fiber path; and an optical receiver adapted to detect back-reflected optical radiation reflected by the optical reflector; the monitoring system being further adapted to recognize a position of at least one of the ancillary elements based on a characteristic of the back-reflected optical radiation. | 04-15-2010 |
20160204577 | LASER, PASSIVE OPTICAL NETWORK SYSTEM, APPARATUS AND WAVELENGTH CONTROL METHOD | 07-14-2016 |