Patents
Patents for H04B 10 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication (73,125)
12/2013
12/03/2013US8600242 Power optimization of optical receivers
12/03/2013US8600241 Optical power transmission system and method having co-propagating control signal
12/03/2013US8600240 Optical network element, optical network, and method of operating an optical network
12/03/2013US8600239 Precise clock synchronization over optical fiber
12/03/2013US8600238 Method and system for bi-directional communication over a single optical fiber
12/03/2013US8600237 Broadband radio transceiver with optical transform
12/03/2013US8600233 Arbitration of optical communication bus
12/03/2013US8600232 Method and device for data processing in an optical network and communication system
12/03/2013US8600231 Monitoring energy consumption in optical access networks
12/03/2013US8600230 Method and device for data processing
12/03/2013US8600229 Method and system for shared protection in wavelength division multiplexing loop network
12/03/2013US8600228 Optical communication
11/2013
11/28/2013WO2013177012A1 Systems for differential optical signaling
11/28/2013WO2013176505A1 Optical line monitoring device, optical line monitoring system including the optical line monitoring device, and method of controlling the optical line monitoring system
11/28/2013WO2013176270A1 Optical modulator
11/28/2013WO2013175804A1 Information communication method
11/28/2013WO2013175803A1 Information communication method
11/28/2013WO2013174376A2 Circuit configuration and method for receiving digital optical signals
11/28/2013WO2013174309A1 Visible light communication system
11/28/2013WO2013174308A1 Data sending and receiving method and device and transmission system for visible light communications
11/28/2013WO2013174307A1 Signal transmission method and apparatus
11/28/2013WO2013174304A1 Method with improved phase robustness in coherent detected optical system
11/28/2013WO2013174219A1 Method and apparatus for path establishment
11/28/2013WO2013173964A1 Repeater and loopback mode switching method
11/28/2013WO2013153132A3 A system for physical layer supervision in optical networks based on tuneable otdr, an hybrid optical switch and a focs
11/28/2013US20130318566 Subscriber line terminal, control method, and control method for pon system
11/28/2013US20130315609 Method with improved phase robustness in coherent detected optical system
11/28/2013US20130315608 Bidirectional and double-frequency optical transmission module and transmission assembly
11/28/2013US20130315607 Low cost direct modulation and coherent detection optical ofdm
11/28/2013US20130315605 Safety system
11/28/2013US20130315604 Mobile bi-directional free-space optical network
11/28/2013US20130315602 Optical transmission device
11/28/2013US20130315601 Optical transmission device
11/28/2013US20130315596 Optimized dynamic bandwidth scheduler
11/28/2013US20130315594 Method, system, and device for transmittng optical network terminal management and control interface message
11/28/2013US20130315593 System and Method for Applying an Extended Multipoint Protocol to Wireless Access Systems
11/28/2013US20130315592 Method for configuring end-to-end lower order odu network trails across optical transport network
11/28/2013US20130315591 Optical transmission apparatus
11/28/2013US20130315588 Appliance and arrangement for optical signal transmission by means of optical wave-guides
11/28/2013US20130315585 Passive wavelength division multiplexing device for automatic wavelength locking and system thereof
11/28/2013US20130315584 Backdoor diagnostic communication to transceiver module
11/28/2013US20130315583 Optical switch
11/28/2013US20130315582 Optical communication module, method for recording log of optical communication module, and optical communication apparatus
11/28/2013US20130315581 Optical transmission system including optical emitting device and optical receiving devices
11/28/2013US20130315579 Method and system for providing a shared demarcation point to monitor network performance
11/28/2013US20130315524 Optical frequency shifter and optical modulator using the same
11/28/2013US20130315267 Optical communication system, optical transmitter, and transponder
11/28/2013US20130313447 Opto-coupler
11/28/2013US20130313446 Semiconductor device
11/27/2013EP2503711B1 Multi-wavelength light source
11/27/2013EP2157722B1 WDM PON RF overlay architecture based on quantum dot multi-wavelength laser source
11/27/2013CN203313345U Passive optical network device
11/27/2013CN203313206U Optical network equipment and optical network resource distribution and identification system
11/27/2013CN203313201U High-speed optical-phase modulator drive device used for quantum-secret-key distribution system
11/27/2013CN203313195U Automatic control-power optical transmitter
11/27/2013CN203313194U Broadband integrated access ONU and EOC integrated machine
11/27/2013CN203313193U Optical fiber repeater
11/27/2013CN203313192U An electric field chromatic dispersion compensation optical module
11/27/2013CN203313191U Burst receiving detection circuit of gigabit-capable PON (passive optical network)
11/27/2013CN203313190U Portable intelligent optical fiber tester
11/27/2013CN103416008A Repeater and loopback mode switching method
11/27/2013CN103415025A Passive optical network optimization method based on ONU-WG
11/27/2013CN103414660A Node device of sensing network capable of supporting sensing access and optical packet transmission
11/27/2013CN103414616A Ethernet bus-based four-channel optical fiber standard frequency module capable of realizing alternative soft and hard switching
11/27/2013CN103414553A Quantum key distribution system and method based on time-slot mixed active polarization compensation
11/27/2013CN103414521A Optical fiber data card based on PCI-EXPRESS interface power supply
11/27/2013CN103414520A Optical signal receiving-sending device
11/27/2013CN103414519A Optically-controlled microwave beam forming networks
11/27/2013CN103414518A Central cable-passing type steel wire rope and escape capsule communication system with same
11/27/2013CN103414517A Method and system for recognizing rate of optical signals
11/27/2013CN103414516A Two-way wired/wireless hybrid optical access method and system based on homodyne/heterodyne detection
11/27/2013CN103414515A Dynamic light source time division information transmission method
11/27/2013CN103414514A System and method for visible light communication based on OFDM modulation codes and frequency division receiving
11/27/2013CN103414513A Device and method for measuring dynamic extinction ratio of pulsed light with high dynamic range
11/27/2013CN103414512A Extinction ratio measuring method and system
11/27/2013CN103414511A Clock synchronization type network monitoring card
11/27/2013CN103414510A EPON protection device and method
11/27/2013CN103414509A Survivable passive optical network planning method based on fiber-wireless integration
11/27/2013CN103412397A Large aperture laser far field distribution detection system based on beam transformation and method thereof
11/27/2013CN103412387A FTTH experimental system
11/27/2013CN102594399B Chaotic ultra wideband (UWB)-over-fiber radio signal generator with adjustable trap property
11/27/2013CN102299744B Optical module with blaze protection function
11/27/2013CN102215112B Method applied to FCoE (Fiber Channel over Ethernet) networking and used for optimizing FSPE (Fiber Shortest Path First) protocol and switchboards
11/26/2013US8594682 Resource allocation to terrestrial and satellite services
11/26/2013US8594515 Digital phase conjugation for fiber-optic links
11/26/2013US8594514 Phase-modulated transmission control using embedded control symbols
11/26/2013US8594513 Time delay adjustment device and method
11/26/2013US8594512 Method and apparatus for transmission of two modulated signals via an optical channel
11/26/2013US8594511 Method and apparatus for maintaining a coherent combined beam during arbitrary steering
11/26/2013US8594510 Light module, illumination system and method incorporating data in light emitted
11/26/2013US8594509 Apparatus and method for arranging communication links in visible light communication
11/26/2013US8594508 Optical transmission system
11/26/2013US8594507 Method and apparatus for measuring gas concentrations
11/26/2013US8594506 Method and system for propagating upstream cable modem signals and RF return video control signals over the same optical network
11/26/2013US8594502 Method and apparatus using distributed raman amplification and remote pumping in bidirectional optical communication networks
11/26/2013US8594500 Connection loss scheme for fiber connections in optical communication system
11/26/2013US8594499 Monitoring phase non-linearities in an optical communications system
11/26/2013US8594498 Method and apparatus for in-band OSNR monitoring
11/26/2013US8594496 Tunable coherent optical time division reflectometry
11/26/2013US8593282 RTLS-enabled tag reclamation receptacle
1 ... 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 ... 732