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)
07/2006
07/05/2006CN1797050A Frost thawing type optical network switch
07/05/2006CN1797048A Optical fiber
07/05/2006CN1263255C Ethernet passive optical network and point-to-point simulating method
07/04/2006US7073080 System and method for dynamically regulating voltage in a wireless interface device while maintaining an acceptable bit error rate
07/04/2006US7072592 Differential dense wavelength division multiplexing (DDWDM) in optical systems
07/04/2006US7072591 Processing of multiple wavelength signals transmitted through free space
07/04/2006US7072590 Fiber optic receiver with an adjustable bandwidth post-amplifier
07/04/2006US7072589 Method and apparatus for controlling the power level in an optical regenerator
07/04/2006US7072588 Multiplexed distribution of optical power
07/04/2006US7072587 Communication using bi-directional LEDs
07/04/2006US7072586 Radio base station system and central control station with unified transmission format
07/04/2006US7072585 Per-channel optical amplification using saturation mode
07/04/2006US7072584 Network hub employing 1:N optical protection
07/04/2006US7072583 Optical communication method and apparatus
07/04/2006US7072582 Optical transmitter power setting using feedback
07/04/2006US7072580 Autoprotected optical communication ring network
07/04/2006US7072561 Method and apparatus for operating variable optical attenuator by modulating the attenuation thereof
07/04/2006US7072541 Bidirectional optical triplexer
07/04/2006US7071455 Optical receiver
06/2006
06/29/2006WO2006069377A2 Testing of transmitters for communication links by software simulation of reference channel and/or reference receiver
06/29/2006WO2006069136A2 Optical transmission system including repeatered and unrepeatered segments
06/29/2006WO2006067890A1 Optical transmitter circuit
06/29/2006WO2006067788A1 Method of controlling optical amplifier located along an optical link
06/29/2006WO2006067293A1 Device for an optical telecommunications network terminal, an electronic chip, a terminal provided with said device and an optical telecommunications network provided with said terminal
06/29/2006WO2006027271A3 Microphone system
06/29/2006US20060140646 Micro-resonator, frequency filter and communication apparatus
06/29/2006US20060140645 High-speed, silicon-based electro-optic modulator with feedback control
06/29/2006US20060140644 High performance, high efficiency fiber optic link for analog and RF systems
06/29/2006US20060140643 Method and apparatus for interleaved optical single sideband modulation
06/29/2006US20060140642 Eliminating ONU laser for WDM PON by burst mode
06/29/2006US20060140641 Avoiding ONU laser by optical modulation and remodulation
06/29/2006US20060140640 Module housing for connecting opto-electronic sub-assemblies
06/29/2006US20060140639 Methods and apparatus for Raman crosstalk reduction via idle data pattern control
06/29/2006US20060140638 Method and apparatus for polarization-independent RF spectrum analysis of an optical source
06/29/2006US20060140637 Chromatic dispersion generating apparatus
06/29/2006US20060140636 Optical communication system
06/29/2006US20060140635 Reflection optical system and projection display apparatus using the same
06/29/2006US20060140634 LED security device and system
06/29/2006US20060140630 Communication systems incorporating control meshes
06/29/2006US20060140627 Supervising system, supervising apparatus and supervising method of supervising optical transmission line
06/29/2006US20060140626 Optical Supervisory Channel for High Span Loss Optical Communication Systems
06/29/2006US20060140625 Optical node and optical add/drop multiplexer
06/29/2006US20060140553 Multiple channel optical tranceiver modules with compatibility features
06/29/2006US20060140548 Optical transceiver and passive optical network using the same
06/29/2006US20060139742 Differentiation of power and channel count changes in optically amplified links
06/29/2006US20060139736 Optical receiver
06/29/2006CA2817631A1 Compensating for time varying phase changes in interferometric measurements
06/29/2006CA2588579A1 Optical transmission system including repeatered and unrepeatered segments
06/28/2006EP1675295A2 System and method for forward error correction decoding using soft information
06/28/2006EP1675285A1 Dispersion management for low dispersion fibers in DWDM core networks
06/28/2006EP1675284A2 Optical amplifier and optical communication system employing the same
06/28/2006EP1675283A1 Method of controlling the gain of a raman amplifier
06/28/2006EP1675282A2 Method and apparatus for decision threshold control in an optical signal receiver
06/28/2006EP1675281A1 DPSK demodulator and demodulating method
06/28/2006EP1675280A1 Passive optical network monitoring method and passive optical network
06/28/2006EP1673883A1 An optical voltage controlled oscillator for an optical phase locked loop
06/28/2006EP1673882A2 An improved communication link for communicating data
06/28/2006EP1673881A1 Method and apparatus for testing optical networks
06/28/2006EP1673880A1 Method, apparatus and system for minimally intrusive fiber identification
06/28/2006EP1279242A4 Rugged shock-resistant backplane for embedded systems
06/28/2006CN2792040Y Optical switchboard for full optical net 650 nm infomration transmission system
06/28/2006CN2791667Y Assembling stru cture of optical fiber isolator
06/28/2006CN1795633A A method for conveying management information
06/28/2006CN1795628A Optical device, especially for the suppression of a rayleigh double backscattered noise and system comprising said device
06/28/2006CN1795627A Electrical domain compensation of non-linear effects in an optical communications system
06/28/2006CN1795408A Serial routing of optical signals
06/28/2006CN1794615A Method of controlling the gain of a raman amplifier
06/28/2006CN1794614A Millimeter wave frequency shift key control communication device implemented by optical fiber raster
06/28/2006CN1794613A 无源光网络监控方法和无源光网络 Passive optical network monitoring methods and passive optical network
06/28/2006CN1794393A Switch with optical controlling function
06/28/2006CN1262085C Optical signal level controlling method and device
06/28/2006CN1262084C Modulation mode and transmission system for NRZ signal with right and left filtering
06/28/2006CN1261810C Dispersion continuous-change fibre
06/28/2006CN1261785C Case for coupling device for injection and/or extraction of optical signal
06/28/2006CN1261778C 光信号传输系统 Optical signal transmission system
06/27/2006US7069577 Dynamic bandwidth allocation
06/27/2006US7068951 Optical signal receiver with RPM, data and data bar output
06/27/2006US7068950 Correcting misalignment between data and a carrier signal in transmitters
06/27/2006US7068949 Multi-wavelength locking method and apparatus for wavelength division multiplexing (WDM) optical communication system
06/27/2006US7068948 Generation of optical signals with return-to-zero format
06/27/2006US7068947 Multi wavelength communication apparatus
06/27/2006US7068946 Modulation scheme for tedons
06/27/2006US7068945 Optical amplifying and repeating method and optical amplifying and repeating system
06/27/2006US7068944 Multi-function optical performance monitor
06/27/2006US7068943 Devices and methods for dynamic dispersion compensation
06/27/2006US7068942 Selection of IC Vdd for improved voltage regulation of transciever/transponder modules
06/27/2006US7068937 Fiber and wire communication system
06/27/2006US7068934 Optical interconnect
06/27/2006US7068932 Method and system for automatic initialization of an optical network
06/27/2006US7068931 Alarm control system and method
06/27/2006US7068876 Method and system for optical transmission adopting dispersion compensation
06/27/2006US7068873 Optical cross connect apparatus and method
06/27/2006US7068747 Data decision circuit using clock signal which has phase optimized with respect to phase of input data signal
06/27/2006US7068693 Laser driver circuit for burst mode transmission
06/27/2006US7068692 Laser driver circuit for burst mode transmission and manufacturing method
06/27/2006US7068691 Directly modulated optical module and method for driving semiconductor laser included therein
06/27/2006US7068583 Nano-scale resolution optical pickup for reading/writing ultra-high density data on CD and DVD data storage elements
06/27/2006US7068424 Multiple pulse generation
06/27/2006US7068423 Low cost flexible automated optical power management
06/27/2006US7068422 Optical fiber amplification method and apparatus for controlling gain