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)
10/1995
10/24/1995US5461497 Photonic amplifier
10/24/1995CA2028647C Method and means for the transmission of an electromagnetic signal in an optical fibre
10/24/1995CA1337438C Digital signal transmission/reception using differential polarization modulation/demodulation
10/19/1995WO1995028043A1 Noise tolerant receiver for wideband optical transmission system
10/19/1995WO1995028042A1 Heterodyne receiver having low intermediate frequency
10/18/1995EP0677936A1 Reconfigurable multiwavelength optical ring network
10/18/1995EP0677902A1 Amplified telecommunication system for wavelength-division multiplexing transmissions
10/18/1995EP0677174A1 Process for altering the intensity and phase ratios in multi-mode interference couplers
10/18/1995CN1110494A Method and apparatus for providing power to a coaxial cable network
10/18/1995CN1110466A External communication link for a credit card fager
10/17/1995US5459607 Synchronous optical digital transmission system and method
10/17/1995US5459600 Optical telecommunications system employing multiple phase-compensated optical signals
10/17/1995US5459599 Optical transmission system having frequency control
10/17/1995US5459328 Driver circuit for light emitting elements connected in series and an optical amplifying repeater using the same
10/17/1995US5459311 Fiber-optic system with delay line for large dynamic range and low pulse width distortion of initial data bits
10/17/1995CA2014938C Optical amplifier-photodetector assemblage
10/12/1995WO1995027346A1 Generation of radio frequency modulated optical radiation
10/12/1995WO1995027332A1 Fixed and adjustable bandwidth translinear input amplifier
10/12/1995WO1995022884A3 Wideband square-law detector having a triangular frequency characteristic as well as a transmission system and a receiver including such a detector
10/12/1995DE4433031A1 Switched changeover between optical data transmission lines
10/12/1995DE4423064A1 Optical data transmission system
10/12/1995DE19512771A1 Optical signal transmission apparatus
10/11/1995EP0676871A1 Optical amplifier and optical communication system provided with the optical amplifier
10/11/1995EP0676659A2 Dual-wavelength source of high-repetition rate, transform-limited optical pulses
10/10/1995US5457563 Optical mixing device having one photodetector for a heterodyne receiver
10/10/1995US5457562 Comprising an erbium-doped fiber amplifier transmitting a narrowcast signal into broadcast transport fiber
10/10/1995US5457561 System for transmitting a beam in the air
10/10/1995US5457560 Fiber optic telecommunication system employing continuous downlink, burst uplink transmission format with preset uplink guard band
10/10/1995US5457559 Apparatus for extracting an optical clock and apparatus for demultiplexing a time-division multiplexed signal
10/10/1995US5457557 Low cost optical fiber RF signal distribution system
10/10/1995US5457556 Optical cross-connect system with space and wavelength division switching stages for minimizing fault recovery procedures
10/10/1995US5457555 Optical transmission system
10/05/1995WO1995026592A2 Optical telecommunications network
10/05/1995DE4411380A1 Opto-electronic ping pong mode transmission and reception module
10/04/1995EP0675665A2 Optical time slot interchange apparatus and method of operation
10/04/1995EP0675664A2 Device for the phase realignment of ATM cells in optical ATM nodes
10/04/1995EP0675611A2 Optical systems and devices using long period spectral shaping devices
10/04/1995EP0675610A1 Optical amplifier and optical communication system provided with the optical amplifier
10/04/1995EP0674822A1 Modulation and coding for transmission using fluorescent tubes
10/04/1995EP0674820A1 Lightwave distribution system for audio and video services and terminal equipment therefor
10/04/1995EP0512008B1 Passive optical network
10/03/1995US5455836 Optical Q-switching to generate ultra short pulses in diode lasers
10/03/1995US5455705 Transimpedance amplifier for optical receiver
10/03/1995US5455704 Optical-fiber light amplifier
10/03/1995US5455703 Fiber optic transceiver with integrated coupler
10/03/1995US5455702 Light communication apparatus
10/03/1995US5455699 Large capacity multi-access wavelength division multiplexing packet network
10/03/1995US5455698 Secure communication alarm system
10/03/1995US5455671 Optical circuit for a measuring system for measuring the reflection sensitivity of an optical transmission system
10/03/1995CA2043596C Optical transceiver
09/1995
09/28/1995DE4431707A1 Infra-red communication system for personal contact
09/28/1995DE4409760A1 Multifunction appts. for unmanned mobile transportation vehicle
09/27/1995EP0674456A2 Passive optical network
09/27/1995EP0674452A2 Repeater for radio paging system and light-wave receiver therefor
09/27/1995EP0674404A1 Optical repeater
09/27/1995EP0674403A1 Optical amplifier and optical communication system provided with the optical amplifier
09/27/1995EP0674372A1 Oscillation polarization selective semiconductor laser and optical communication system using the same
09/27/1995EP0674210A2 Optical modulator
09/27/1995EP0674197A1 Connection device for a multicore fibre and method of its fabrication
09/27/1995EP0674193A2 Optical transmission system with dispersion compensating optical fiber
09/26/1995US5453988 Passive optical network
09/26/1995US5453872 Fiber-optic amplifier as wavelength converter
09/26/1995US5453868 Suppression of noise and distortion in fiber-optic systems
09/26/1995US5453867 Analog optical transmission system
09/26/1995US5453866 Method and system for sensing a physical quantity using analog optical signal transmission
09/26/1995US5453865 For monitoring a telecommunications network
09/26/1995US5453827 Fiberoptic in-line filter and technique for measuring the transmission quality of an optical fiber through the use of a fiberoptic in-line filter
09/26/1995US5453608 Triggerable electro-optic amplitude modulator bias stabilizer for integrated optical devices
09/26/1995CA2068986C Passive optical network
09/26/1995CA2057264C Amplifier for optical fiber communication link
09/21/1995WO1995025274A1 Method and apparatus scanning a fiber optic network
09/20/1995EP0673180A2 Subscriber network
09/20/1995EP0673128A1 Optical module for subcarrier multiplexed optical transmission system
09/20/1995EP0673127A1 Optical communication system using polarisation and wavelength modulation
09/20/1995EP0672926A1 Circuit board packaging structure
09/20/1995EP0672924A1 Optical switching device
09/20/1995EP0672284A1 Measuring process and device with analog optical signal transmission.
09/19/1995US5452135 All-directional optical sensor apparatus
09/19/1995US5452124 Unidirectional amplification for bi-directional transmission using wavelength-division multiplexing
09/19/1995US5452118 Optical heterodyne receiver for fiber optic communications system
09/19/1995US5452117 Direct detection of FSK
09/19/1995US5452116 Transmission systems incorporating optical amplifiers
09/19/1995US5452115 Communications system
09/19/1995US5452075 Method and device for monitoring branched optical line network
09/19/1995US5451902 Fully differential CMOS transconductance-transimpedance wide-band amplifier
09/19/1995CA2037749C Method and apparatus for non-contact extraction of on-board vehicle trip recorders
09/14/1995WO1995024779A1 Optical telecommunications system employing coherence multiplexing
09/14/1995WO1995024767A1 An amplifier circuit
09/14/1995WO1995024752A1 Electro-optical semiconductor modulator and optical link including same
09/14/1995CA2183955A1 An amplifier circuit
09/13/1995EP0671833A2 A microcomputer control optical fiber transmission system
09/13/1995EP0671826A1 Device for optical transmissions
09/13/1995EP0671792A1 Laser control arrangement for tuning a laser
09/13/1995EP0671791A1 Semiconductor electrooptical modulator and optical transmission system including this modulator
09/12/1995USRE35035 Locating system and method
09/12/1995US5450507 Fiber-optic address detector in photonic packet switching device and method for fabricating the same
09/12/1995US5450431 Digitally-tuned integrated laser with multi-frequency operation
09/12/1995US5450226 Inter-car optical coupling
09/12/1995US5450223 Optical demultiplexer for optical/RF signals
09/12/1995CA2144399A1 Electro-optical semiconductor modulator and optical link including said modulator
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