| 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) |
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| 06/02/2005 | US20050116822 System of non-intrusive access control and method thereof |
| 06/02/2005 | US20050116154 Device for optical signal transmission between two units movable relative to each other |
| 06/02/2005 | DE10353295A1 Elektrische Steuereinrichtung Electric control device |
| 06/02/2005 | CA2546276A1 Free space optical communications |
| 06/01/2005 | EP1536583A2 Optical ring network with optical subnets |
| 06/01/2005 | EP1536579A1 Modified DPSK optical transmission system |
| 06/01/2005 | EP1536578A2 Differential polarization shift-keying optical transmission system |
| 06/01/2005 | EP1536577A1 Burst signal extinction ratio control circuit, integrated circuit thereof, burst signal extinction ratio control method, computer program, and laser diode drive circuit |
| 06/01/2005 | EP1536259A2 Optical transmission system, optical multiplexing transmission system, and related peripheral techniques |
| 06/01/2005 | EP1536258A2 Optical transmission system, optical multiplexing transmission system, and related peripheral techniques |
| 06/01/2005 | EP1536257A2 Optical transmission system, optical multiplexing transmission system, and related peripheral techniques |
| 06/01/2005 | EP1535415A2 System and method for high bit-rate optical time division multiplexing (otdm) |
| 06/01/2005 | EP1535412A2 Optical transmission system employing erbium-doped optical amplifiers and raman amplifiers |
| 06/01/2005 | EP1535411A2 Method and apparatus for sharing pump energy from a single pump arrangement to optical fibers located in different fiber pairs |
| 06/01/2005 | EP1175758B1 Local network and method for reproducing audio and video data |
| 06/01/2005 | EP1173775B1 Telemetry system and method for emi susceptibility testing of motor vehicles |
| 06/01/2005 | EP1166471B1 Improved circuit design and optics system for infrared signal transceivers |
| 06/01/2005 | EP1099318B1 Improved optical fiber amplifier control |
| 06/01/2005 | EP1060589A4 Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems |
| 06/01/2005 | CN2703365Y Optical fibre line protecting apparatus |
| 06/01/2005 | CN2703364Y Amplitude-modulated optical transmitter |
| 06/01/2005 | CN2703279Y Light control speech transmitting system |
| 06/01/2005 | CN1623292A Noise reduction in optical communications networks |
| 06/01/2005 | CN1623291A WDM optical transmission system with passive hub |
| 06/01/2005 | CN1622495A System and method for control clock recovery unit locking switching in 40Gb/s optical transmission |
| 06/01/2005 | CN1621874A Differential polarization shift-keying optical transmission system |
| 06/01/2005 | CN1204771C Transmission method of light transmission maintaining information |
| 06/01/2005 | CN1204710C Classic signal synchronous delayed composite quantum cipher key distribution system and realizing method thereof |
| 06/01/2005 | CN1204423C Conic optical fibre micro spherical discrete spectrum amplifier |
| 06/01/2005 | CN1204421C Polarization maintaining optical fibre with high birefringence and its manufacturing method |
| 05/31/2005 | US6901339 Eye diagram analyzer correctly samples low dv/dt voltages |
| 05/31/2005 | US6901241 System, method and apparatus for secure transmission of confidential information |
| 05/31/2005 | US6901240 Communication system |
| 05/31/2005 | US6901225 Device for detecting polarization mode dispersions |
| 05/31/2005 | US6901224 Hybrid coherent-optical, RF signal channelizer |
| 05/31/2005 | US6901223 Optical transmitter and optical transmitting apparatus using the same |
| 05/31/2005 | US6901222 Optical transmission system and terminal device applicable to the system |
| 05/31/2005 | US6901221 Method and apparatus for improved optical elements for vertical PCB fiber optic modules |
| 05/31/2005 | US6901220 Supraconnect laser communication system |
| 05/31/2005 | US6901184 Frequency comb for an optical WDM network |
| 05/31/2005 | US6901183 Optical wavelength division multiplexed system using wavelength splitters |
| 05/31/2005 | US6901177 Optical top hat pulse generator |
| 05/31/2005 | US6901085 Multi-wavelength ring laser source |
| 05/31/2005 | US6900934 Inversion level controller and system for optical amplifiers |
| 05/31/2005 | US6900931 Three-stage optical amplifier having flat spectral gain |
| 05/31/2005 | US6900929 Noise figure measuring system for optical amplifier |
| 05/31/2005 | US6900726 System and method for fiber optic communication with safety-related alarm systems |
| 05/31/2005 | US6900698 Negative feedback amplifier with electrostatic discharge protection circuit |
| 05/31/2005 | US6900509 Optical receiver package |
| 05/26/2005 | WO2005048520A1 Data transmission method and data transmission device |
| 05/26/2005 | WO2005048492A1 Space-time coded diffuse-ir networking with photon density waves |
| 05/26/2005 | WO2005047964A1 Lightwave control apparatus |
| 05/26/2005 | WO2005047907A1 Optical flow monitor |
| 05/26/2005 | WO2004112203A3 Modular optical device that interfaces with an external controller |
| 05/26/2005 | WO2004100228A3 Access point |
| 05/26/2005 | US20050111855 Modified DPSK transmission system |
| 05/26/2005 | US20050111854 Optical multilevel-coded signal transmission system and method thereof, optical transmitter, and multilevel-coded signal light generating method |
| 05/26/2005 | US20050111853 Optical frequency shift keying modulator |
| 05/26/2005 | US20050111852 Method and apparatus for transmitting a signal using thermal chirp management of a directly modulated transmitter |
| 05/26/2005 | US20050111851 Differential polarization shift-keying optical transmission system |
| 05/26/2005 | US20050111850 Optical transmission system for frequency-multiplexed signal |
| 05/26/2005 | US20050111848 Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of operation |
| 05/26/2005 | US20050111847 Method and apparatus for automatically adjusting the optical power directed to a dispersion compensating element |
| 05/26/2005 | US20050111845 Apparatus, system and methods for modifying operating characteristics of optoelectronic devices |
| 05/26/2005 | US20050111844 Apparatus and method for providing HFC forward path spectrum |
| 05/26/2005 | US20050111843 Transmission loss and gain measurement method, transmitter-receiver, and transmitting-receiving system |
| 05/26/2005 | US20050111789 Method and apparatus for optical division of a broadband signal into a plurality of sub-band channels |
| 05/26/2005 | US20050111788 Optical apparatus for bidirectional optical communication |
| 05/26/2005 | US20050111495 Optical ring network with optical subnets and method |
| 05/26/2005 | US20050111078 Optical signal amplifier and method |
| 05/26/2005 | US20050111077 Gain controller with selectable wavelength feedback |
| 05/26/2005 | US20050111073 Integrated variable optical attenuator and related components |
| 05/26/2005 | US20050110987 System for detection of wafer defects |
| 05/26/2005 | US20050110981 Method and apparatus for measuring chromatic dispersion |
| 05/26/2005 | US20050110980 Measurement method by OTDR and terminal station apparatus |
| 05/26/2005 | US20050109041 Temperature controlling circuit for a semiconductor light-emitting device |
| 05/25/2005 | EP1533921A2 Digital optical receiving apparatus and method for monitoring the quality of a modulated optical transmission signal |
| 05/25/2005 | EP1533773A2 A remote controlling device with visual recognition function |
| 05/25/2005 | EP1533709A2 Data communication method, electronic apparatus, and physical-layer-control integrated circuit |
| 05/25/2005 | EP1533708A2 Signal transmitting apparatus and method |
| 05/25/2005 | EP1532757A2 Method for determining the gain spectrum of a raman amplifier in a wdm-transmission system |
| 05/25/2005 | EP1532756A1 Method for determining the signal-to-noise ratio for an optical signal |
| 05/25/2005 | EP1532755A2 Appartus and method for free-space optical communication |
| 05/25/2005 | EP1425885B1 Method and system for transmitting data from a first data network into a second data network |
| 05/25/2005 | EP1279288B1 Fiber to the home (ftth) multimedia access system |
| 05/25/2005 | EP1166472B1 Communications network |
| 05/25/2005 | EP1088375A4 Dispersion compensating and amplifying optical element, method for minimizing gain tilt and apparatus for minimizing non-linear interaction between band pumps |
| 05/25/2005 | EP1058978B1 Measuring the signal quality in digital optical fiber transmission networks by evaluating the signal histogram |
| 05/25/2005 | DE19861149B4 Optical communication system for personal computer and printer |
| 05/25/2005 | DE10349891A1 Optisches Netzwerk und Verstärkerknoten dafür Optical network nodes and amplifiers for |
| 05/25/2005 | DE10349106A1 Optical signal receiver e.g. for IR light, receiving data from remote control of television, audio video players, collects optical signals from source in closed area and converts signal into electric signals with opto-electronic transducer |
| 05/25/2005 | CN1620773A Method for securing an optical telecommunication ring network and communication node, amplifying communication node, and traffic concentrator of a secured optical telecommunication ring network |
| 05/25/2005 | CN1620772A Methods and apparatuses to provide a wavelength division-multiplexing passive optical network based on wavelength-locked wavelength-division- multiplexed light sources |
| 05/25/2005 | CN1620771A Spectrum roate determining method for given connection in optical communication network |
| 05/25/2005 | CN1620770A Protected bidirectional WDM network |
| 05/25/2005 | CN1620769A A method and an apparatus for signal transmission |
| 05/25/2005 | CN1620622A Infrared communications link with attachment configuration |
| 05/25/2005 | CN1620155A Radio module testing machine and method of proceeding radio module test using said machine |
| 05/25/2005 | CN1619988A Transmitting supervisory messages from a fiber amplifier |
| 05/25/2005 | CN1619987A Device and method for proceeding simulation to time delay |