Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
10/2003
10/29/2003CN1126289C Repeater apparatus having isolation circuit
10/29/2003CN1126056C Fault detection and modification circuit
10/29/2003CA2426997A1 Polarization mode dispersion compensator parallel monitoring and control architecture
10/28/2003USRE38289 Chromatic dispersion compensation in wavelength division multiplexed optical transmission systems
10/28/2003US6640035 Dispersion compensation fiber
10/28/2003US6640031 Dispersion compensating module and mode converter, coupler and dispersion compensating optical waveguide therein
10/28/2003US6640025 Optical apparatus for optical communication terminal and optical communication system
10/28/2003US6639716 Wavelength division multiplexing optical communication system and optical amplifying device
10/28/2003US6639715 Raman amplifier and optical transmission system using the amplifier
10/28/2003US6639703 Receiver transponder for protected networks
10/28/2003US6639702 Optical module for access networks to wide band communication systems and relevant production method
10/28/2003US6639701 Fiber optic transmission with fiber amplifiers and supervisory signals
10/28/2003US6639482 Method for regulating the working point of a modulator and associated drive unit
10/28/2003US6639209 Method of automatic standardized calibration for infrared sensing device
10/28/2003CA2298272C Lightwave communication systems using semiconductor optical amplifiers
10/28/2003CA2296945C High capacity optical fiber network operating in the 1385 nm region
10/23/2003WO2003088531A1 Dispersion managed cable for unrepeatered systems
10/23/2003WO2003088530A1 Polarization mode dispersion compensator
10/23/2003WO2003088529A1 Optical amplifier system
10/23/2003WO2003088528A1 Method for detecting a check-back signal in an optical transmission system
10/23/2003WO2003088518A1 Access method and connection system by means of optical fiber using dwdm/scm hybrid techniques between base stations and remote antennas in a radiocommunication system
10/23/2003WO2003088472A2 Atomic clock based on an opto-electronic oscillator
10/23/2003WO2003087891A2 Optical communication systems including optical amplifiers and amplification methods
10/23/2003WO2003087887A2 Wireless optical system and method for point-to-point high bandwidth communication
10/23/2003WO2003087741A1 Optical signal-to-noise monitor having increased coherence
10/23/2003WO2003041306A3 Characterization of a transmission path of an optical signal having an optical communication signal
10/23/2003WO2002060096A3 Automatic polarization controller for polarization multiplexed optical signals
10/23/2003US20030199674 Used as pharmaceuticals, diagnostics, biosensors and bioreactors
10/23/2003US20030199436 Secreted and transmembrane polypeptides and nucleic acids encoding the same
10/23/2003US20030198479 Driver circuit and optical-transmission module
10/23/2003US20030198478 Method and system for generating and decoding a bandwidth efficient multi-level signal
10/23/2003US20030198477 Modulated light signal processing method and apparatus
10/23/2003US20030198476 Signal converter, optical transmitter and optical fiber transmission system
10/23/2003US20030198475 Vehicular communication system
10/23/2003US20030198474 Systems and methods for compensating for signal transients
10/23/2003US20030198473 Dispersion compensation method in optical communication system having optical add drop multiplexing capability
10/23/2003US20030198472 WDM ring transmission system
10/23/2003US20030198470 WDM assembly
10/23/2003US20030198469 Method and a system for monitoring the transmission of optical signals
10/23/2003US20030198452 Module apparatus for optical communications and circuit pack therefor
10/23/2003US20030198448 Dispersion map for slope compensating fibers
10/23/2003US20030198443 Optical head
10/23/2003US20030198436 Arrayed waveguide grading with optical input and output characteristics settable to desired values
10/23/2003US20030198181 Method for identifying the current route of paths in telecommunications MS-SPRINGS
10/23/2003US20030197936 Tunable polarization mode dispersion compensation using multi-layered reflector
10/23/2003US20030197935 Optical signal processing apparatus
10/23/2003US20030197920 Optical amplifying method
10/23/2003US20030197919 Interleaving combiner for a bidirectional wavelength-division multiplexing system
10/23/2003US20030197918 Integrated optical circuit for effecting stable injection locking of laser diode pairs used for microwave signal synthesis
10/23/2003US20030197563 Amplification circuit and optical communication apparatus provided with the amplification circuit
10/23/2003CA2481678A1 Optical communication systems including optical amplifiers and amplification methods
10/23/2003CA2416815A1 Modulated light signal processing method and apparatus
10/22/2003EP1355464A2 DC removal in an optical receiver
10/22/2003EP1355441A1 Method and apparatus for controlling the transmission of optical signals
10/22/2003EP1355440A2 Wavelength-division multiplex communication system
10/22/2003EP1355437A1 Bottom level detection device for burst mode optical receiver
10/22/2003EP1355436A1 Burst mode optical receiver generating a reset signal for an automatic threshold control device during inter-burst periods
10/22/2003EP1355435A1 Phase modulation for an optical transmission system
10/22/2003EP1355390A1 Dynamic gain equalising filter
10/22/2003EP1354671A1 Wireless data transmission system for a glove box
10/22/2003EP1354437A2 Method and system for processing upstream packets of an optical network
10/22/2003EP1354431A2 Rf bidirectional optical transmission
10/22/2003EP1238468B1 Method and arrangement for noise rejection in a receiver circuit
10/22/2003EP1169797B1 Device for optically transmitting data
10/22/2003EP0908030B1 Device for receiving optical signals with a light guide
10/22/2003EP0901723B1 Method for structuring of digital data which can be transferred in both directions on a passive optical network (pon) in a pon tdma system
10/22/2003CN1451210A Hybrid wireless optical and radio fequency communication link
10/22/2003CN1450785A Distributed asymmetrical digital user line broadband optical fiber insertion system
10/22/2003CN1450746A Detection power range adjustable photoelectric detector and array thereof
10/22/2003CN1450737A Chromatic dispersion compensating apparatus
10/22/2003CN1450736A Receiving device for disturbed optical signals with generation of feedback signal by correlation, and method of generating such feedback
10/22/2003CN1450735A Method for optimizing output channel energy homogeneity of double-window optical power distributor
10/22/2003CN1450733A Optical fibre transmission system
10/22/2003CN1450732A Wavelength division multiplex transmission system
10/22/2003CN1450731A Generator of optical data carrier signals with selectable carrier wavedengths
10/22/2003CN1450383A Clad modulation wave guide type electro-optical modulator
10/22/2003CN1450382A Light modulator, light signal transmitting apparatus and method for controlling light modulator
10/22/2003CN1450375A Optics collimator
10/22/2003CN1450373A Small sized optical fibre circulator
10/22/2003CN1450372A 光隔离器 Optical isolator
10/22/2003CN1450369A Optical fibre with ultralarge effective area, low dispersion gradient and non-zero dispersion displacement
10/22/2003CN1450368A Optica signal receivingl transmitting apparatus
10/22/2003CN1125544C Optical supervisory transmission signal control device
10/22/2003CN1125518C Optical amplifiers
10/21/2003USRE38280 Optoelectronic module for bidirectional optical data transmission
10/21/2003US6636681 Optical attenuator
10/21/2003US6636666 Optical power equalizer
10/21/2003US6636661 Optical signal interleaving comb filter with reduced chromatic dispersion and applications therefor
10/21/2003US6636659 Optical amplification apparatus and optical transmission system
10/21/2003US6636657 Channelized wavelength division multiplex equalizer using reflective attenuators
10/21/2003US6636527 Optical line termination in ATM-based PON
10/21/2003US6636348 Signal break detecting circuit
10/21/2003US6636344 Raman amplifier, optical repeater, and raman amplification method
10/21/2003US6636342 Light source used in wavelength multiplexing
10/21/2003US6636318 Bit-rate and format insensitive all-optical circuit for reshaping, regeneration and retiming of optical pulse streams
10/21/2003US6634812 Light emitting/receiving circuits corresponding to plurality of signal light input/output portions; reflector at each edge with concave shape
10/21/2003US6634811 High performance optical link
10/21/2003US6634808 Method for transmitting at least one first and one second data signal in polarization division multiplex in an optical transmission system
10/21/2003US6634807 Vulnerability of an optical network to channel impairments or the like, is addressed by utilizing real-time monitoring and control of prescribed optical channel impairments. The impairments are compensated for by employing an optimization
10/21/2003CA2189957C Apparatus for exchanging data between a central station and a plurality of wireless remote stations
1 ... 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 ... 732