Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 398/70
Name: Optical communications > Multiplex > Broadcast and distribution system > Wdm > Hub or central office
Description: Subject matter including means that provides centralized functions such as switching between connected circuits or connecting subscribers to each other.

Sub-classes under this class:

Class Number Class Name Patents
398/71 Including subscribers 368

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8705965 Method of recovery from sleep state of an ONU in a PON system capable of power saving Apr. 22, 2014
8687962 Method and arrangement for transmitting signals in a point to multipoint network Apr. 1, 2014
8682164 Optical wavelength division node Mar. 25, 2014
8660422 Combined communication and broadcasting dual switching system and method Feb. 25, 2014
8649679 Management system for GPON based services Feb. 11, 2014
8649682 Passive optical network Feb. 11, 2014
8644711 Apparatus and method for OLT and ONU for wavelength agnostic wavelength-division multiplexed passive optical networks Feb. 4, 2014
8634717 DDoS attack detection and defense apparatus and method using packet data Jan. 21, 2014
8630544 System and method for channel-adaptive error-resilient burst mode transmission Jan. 14, 2014
8630541 Wavelength division multiplexing transmission apparatus for controlling the wavelength of an FBTL optical module, and wavelength control method employed for wavelength division multiplexing tr Jan. 14, 2014
8630540 Method and system for transporting DOCSIS communication signals over a passive optical network Jan. 14, 2014
8625990 Optical line terminal, remote node unit, optical transmission method and system thereof Jan. 7, 2014
8625991 Amortization of expensive optical components Jan. 7, 2014
8615169 PON system and redundancy method Dec. 24, 2013
8606107 Colorless dense wavelength division multiplexing transmitters Dec. 10, 2013
8606109 Technique for forwarding packets in a gigabit passive optical network (GPON) Dec. 10, 2013
8600231 Monitoring energy consumption in optical access networks Dec. 3, 2013
8600234 Method and apparatus for link sharing among multiple epons Dec. 3, 2013
8582966 Method and apparatus for protection switching in passive optical network Nov. 12, 2013
8582970 Office-side line concentration device, access control device, and computer program therefor Nov. 12, 2013
8565597 Label switching method, apparatus and system Oct. 22, 2013
8565599 System and method for transmitting optical markers in a passive optical network system Oct. 22, 2013
8548326 Optical communication system Oct. 1, 2013
8543957 Optical network design apparatus and method Sep. 24, 2013
RE44498 Fiber optic local convergence points for multiple dwelling units Sep. 17, 2013
8532491 Optical multiplexing terminating device, passive optical network system and method for allocating wavelength Sep. 10, 2013
8521025 Scheduling WDM PON with tunable lasers with different tuning times Aug. 27, 2013
8509619 Communication control method, station side device, subscriber side device, and communication system Aug. 13, 2013
8488935 Fiber to the premise service disconnect via macro-bending loss Jul. 16, 2013
8488966 Data transmission method of optical access network, and system and device thereof Jul. 16, 2013
8488977 Time division multiple access over wavelength division multiplexed passive optical network Jul. 16, 2013
8472804 System and method for long backhaul link extension in a passive optical network Jun. 25, 2013
8463124 Passive optical network with sub-octave transmission Jun. 11, 2013
8457495 Network system, optical network unit and optical line terminal Jun. 4, 2013
8437635 Method for enabling AC coupling of high-speed burst data signals transmitted in optical networks May. 7, 2013
8417117 DWDM and CWDM hybrid PON system and method Apr. 9, 2013
8412042 Innovative architecture for fully non blocking service aggregation without O-E-O conversion in a DWDM multiring interconnection node Apr. 2, 2013
8412043 Optical communications network, power supply controlling method, station-side equipment, subscriber-side equipment, and semiconductor chip Apr. 2, 2013
8406628 Method, equipment, and system for detecting and authenticating terminal in passive optical network Mar. 26, 2013
8396365 Customer premises optical network unit Mar. 12, 2013
8391717 Flow-control methods and systems for multibus systems Mar. 5, 2013
8374476 Fiber distribution device Feb. 12, 2013
8374501 Optical line terminal and optical line transmission and reception system Feb. 12, 2013
8369705 System and method for channel-adaptive error-resilient transmission to multiple transceivers Feb. 5, 2013
8369706 Open access service model using WDM-PON Feb. 5, 2013
8355634 Optical network unit having automatic shutdown Jan. 15, 2013
8351786 Maximizing capacity of wavelength division multiplexing passive optical networks Jan. 8, 2013
8351787 Field framing with built-in information Jan. 8, 2013
8346080 Optical network system and memory access method Jan. 1, 2013
8346081 Smart RF over glass (RFoG) CPE unit with seamless PON upgrade capability Jan. 1, 2013

1 2 3 4 5 6

  Recently Added Patents
Method and system for advertisement using internet browser to insert advertisements
Isoselective polymerization of epoxides
Fragrance compounds
Probe for ultrasound diagnostic apparatus
Image sensor with improved color crosstalk
Variety corn line LIC7382
Method for conformal plasma immersed ion implantation assisted by atomic layer deposition
  Randomly Featured Patents
Ultrasonic probe
Automatic power transmission with direct-drive clutch
Multistage compressor for a gas turbine, comprising discharge ports and injection ports to stabilize the compressor flow
Mixtures of bleaching agents
Differential motion conveyor drive
Storage controller software development support system and software development support method
Method and apparatus for bending and tempering glass plates
Method for promoting hard tissue formation
Occupant detection system and method for calibrating
Method of preparing silicon from sodium fluosilicate