Patent application number | Description | Published |
20090016719 | OPTICAL TRANSPONDER INTERFACING MULTIPROTOCOL SIGNAL AND METHOD OF INTERFACING MULTIPROTOCOL SIGNAL - Provided are an optical transponder that interfaces a multiprotocol signal and a method of interfacing a multiprotocol signal. The optical transponder includes: an optical transceiver, which optical/electrical converts and multiplexes/demultiplexes an input signal; a reception clock generator, which generates a clock on a reception path; a transmission clock generator, which generates a clock on a transmission path; an optical transport hierarchy (OTH) framer, which processes an OTH signal when the input signal is the OTH signal; a synchronous digital hierarchy (SDH)/synchronous optical network (SONET) framer, which processes an SDH/SONET signal or a gigabit Ethernet (GbE) when the input signal is the SDH/SONET signal or the GbE signal; and a controller which controls the optical transceiver, the reception clock generator, the transmission clock generator, the OTH framer, and the SDH/SONET framer according to the type of the input signal. Accordingly, one optical transponder can receive various types of protocol signals, and thus different optical transponders are not separately required according to a type of a connected signal. | 01-15-2009 |
20100290739 | ACTIVE ALIGNMENT METHOD FOR MULTI-CHANNEL OPTICAL TRANSMITTER AND RECEIVER - An active alignment method for a multi-channel optical transmitter and receiver is disclosed. The active alignment method for a multi-channel optical transmitter includes actively aligning an optical signal generator with an optical multiplexer based on optical outputs of a plurality of wavelengths from the optical signal generator and an optical output of the optical multiplexer, and actively aligning the optical multiplexer with a fiber optic coupler based on an optical output of the optical multiplexer and an optical output of the fiber optic coupler. | 11-18-2010 |
20110150467 | MULTIPLEXING AND DEMULTIPLEXING APPARATUS AND METHOD OF MULTI-WAVELENGTH OPTICAL SIGNAL - Provided are a multiplexing and demultiplexing apparatus and method of a multi-wavelength optical signal that may dispose each of thin film filters in a location where a zigzag reflection occurs in a zigzag optical path, and thereby multiplex or demultiplex a multi-wavelength optical signal using the thin film filters. Each of the thin film filters may transmit an optical signal having a predetermined wavelength which is incident at a predetermined incidence angle, and reflect a remaining wavelength optical signal at a predetermined reflection angle. | 06-23-2011 |
20120235764 | STRUCTURE OF TRANSMISSION LINE FOR DATA COMMUNICATION AND METHOD FOR DESIGNING THE SAME - Disclosed is a structure for impedance matching by applying a CPW structure to an impedance discontinuous portion on a data signal line or using a micro-strip open stub so as to be used for high-speed transmission by a flexible PCB. According to the present invention, it is possible to fabricate a flexible PCB capable of performing low-priced and high-speed transmission. | 09-20-2012 |
20120263917 | OPTICAL MODULE HAVING TO-CAN STRUCTURE FOR HIGH-SPEED SIGNAL TRANSMISSION - There is provided an optical module having a top open can (TO-CAN) structure. The optical module having the TO-CAN structure includes a stem that accommodates an optical element or an electronic element therein, and a lead pin that is connected to the optical element or the electronic element through a hole of the stem, wherein the lead pin is bent in a “ | 10-18-2012 |
20120294623 | OPTICAL TRANSCEIVER MODULE FOR CONTROLLING POWER IN LANE - Disclosed is an optical transceiver module for controlling power in each lane. The optical transceiver module includes: a plurality of transmitting units formed in each lane in order to transmit signals to receive electric signals in each lane, convert the received electric signals into optical signals, and transmit the converted optical signals, respectively; a first switching means turning on/off power supplied to each of the plurality of transmitting units in each lane; a plurality of receiving units formed in each lane to receive optical signals in each lane, convert the received optical signals into electric signals, and output the converted electric signals, respectively; a second switching means turning on/off power supplied to each of the plurality of receiving units in each lane; and a control means controlling switching operations of the first switching means and the second switching means. | 11-22-2012 |
20150078758 | LARGE CAPACITY OPTICAL TRANSCEIVER MODULE - A large capacity optical transceiver module includes: an optical transmitter configured to convert electric signals input from an external source into optical signals to transmit the converted signals, in which the electric signals are directly modulated into optical signals in a plurality of sub groups to be multiplexed; and an optical receiver configured to receive optical signals from the external source, and to convert the received optical signals into electric signals to output the converted signals, in which the optical signals are demultiplexed in a plurality of sub groups to be converted into electric signals. | 03-19-2015 |
20150139666 | MULTI-WAVELENGTH OPTICAL SIGNAL RECEIVING APPARATUS AND METHOD - A multi-wavelength optical signal receiving apparatus receives a multi-wavelength optical signal, demultiplexes the received optical signal to convert into an electric signal. The multi-wavelength optical signal receiving apparatus includes a demultiplexing part including a demultiplexer configured to divide the received multi-wavelength optical signal into a plurality of optical signals by wavelength, a photoelectric conversion part to convert the optical signals into electric signals and amplify the electric signals, and at least one lower securing plate configured to couple the parts by an active alignment method. Accordingly, an additional polishing or coating process is not required, which simplifies the manufacturing process, and it is possible to manufacture the apparatus in blocks, thereby increasing mass-productivity. | 05-21-2015 |