|UBIQUOSS Inc. Patent applications|
|Patent application number||Title||Published|
|20140009298||Transmission System Using Dying Gasp - An Ethernet-based transmission system using a dying gasp according to the present invention includes an SMPS for supplying power to an Ethernet-based lower level system, detecting a state of a power fault, and outputting a dying gasp alarm signal. A CPU receives the dying gasp alarm signal, and generates and transmits an alarm packet. A PHY chip receives the alarm packet, and uplinks the alarm packet so that the alarm packet is transferred to a higher level stage. An L3 switch receives the alarm packet and determines whether a power fault has occurred in the lower level system. Accordingly, the present invention applies a dying gasp to an Ethernet-based or EPON-based transmission system and is then capable of generating and transmitting an alarm packet so that when a power fault occurs, a device in a higher level network can rapidly determine the occurrence of the power fault.||01-09-2014|
|20130004156||PASSIVE OPTICAL NETWORK SYSTEM AND METHOD FOR DETECTING FAULT IN OPTICAL NETWORK TERMINAL - Disclosed herein is a Passive Optical Network (PON) system and method for detecting a fault in an Optical Network terminal (ONT). The PON system for detecting a fault in an ONT includes a plurality of ONTs for outputting optical signals in time slots allocated thereto in a time division access control manner and having at least one virtual ONT. An Optical Line Terminal (OLT) receives the optical signals output from the plurality of ONTs in the time division access control manner, and then detects a faulty ONT.||01-03-2013|
|20120321304||COMBINED COMMUNICATION AND BROADCASTING DUAL SWITCHING SYSTEM AND METHOD - Disclosed herein are a combined communication and broadcasting dual switching system and method. The system includes broadcasting transmission means, an Optical Line Terminal (OLT), an optical detection unit, an active path determination unit, an optical switch unit, and a combining unit. The broadcasting transmission means converts a Radio Frequency (RF) broadcast signal into an optical signal. The OLT includes dual lines and selectively outputs an Internet data signal. The optical detection unit detects a line from which the Internet data signal is being output. The active path determination unit determines that the line is an active path. The optical switch unit receives the optical signal from the broadcasting transmission means, and switches to the active path. The combining unit receives the optical signal output after having been switched, receives the Internet data signal from the OLT, and multiplexes the received optical signal and the received Internet data signal.||12-20-2012|
|20120315041||OPTICAL NETWORK TERMINAL - Disclosed herein is an optical network terminal. The Optical Network Terminal (ONT) includes a laser diode for generating an optical signal to be transmitted to the OLT. A laser diode driving unit supplies driving current required for light emission of the laser diode. A driving current detection unit detects the driving current. A light emission time determination unit calculates a light emission time of the laser diode depending on a time for which the driving current is detected, and outputs a power control signal including information about results of a comparison between the light emission time of the laser diode and a preset reference time. A power supply voltage control unit interrupts a power supply voltage of the laser diode driving unit when the power control signal includes information indicating that the light emission time of the laser diode is longer than the reference time.||12-13-2012|
Patent applications by UBIQUOSS Inc.