Patents
Patents for H04B 1 - Details of transmission systems, not covered by a single one of groups; Details of transmission systems not characterised by the medium used for transmission (188,568)
01/2000
01/05/2000DE19927242A1 Receiver for reception of multiplexed radio wave
01/05/2000DE19837408C1 Carrier recovery method for optical phase shift keying homodyne receiver
01/05/2000DE19825455A1 Frequenzumsetzungseinrichtung für ein Fernsehsignalgemisch Frequency conversion device for a composite video signal
01/05/2000DE19808653A1 Fan-shaped radiation protection for mobile telephones
01/05/2000CN2357444Y Wireless fixed table
01/05/2000CN2357443Y Domestic electrical appliance remote-controller capable of lighting
01/05/2000CN1240559A Method and system for produced power operation of cellular mobile terminals
01/05/2000CN1240544A Mobile communication unit and a radio transmitter for communicating with such mobile communication unit
01/05/2000CN1240543A Circuit and method for controlling the power used by a portable radiotelephone
01/05/2000CN1240386A Semiconductor device and method for manufacturing the same
01/05/2000CN1240305A Pocket portable radio terminal unit
01/05/2000CN1048128C Double-conversion type radio transmitting and receiving system
01/04/2000US6012105 System for interfacing with an external accessory in one of two interface modes based on whether communication can be established with external accessory or not
01/04/2000US6011992 System for measuring and indicating changes in the resistance of a living body
01/04/2000US6011980 Wireless telecommunication equipment
01/04/2000US6011979 Method for selecting an amplifier for use in a personal communication service base station
01/04/2000US6011965 Receiver with a tunable parallel resonant circuit
01/04/2000US6011964 Helical antenna for a portable radio apparatus
01/04/2000US6011963 Received signal strength detecting circuit
01/04/2000US6011959 Combiner circuit for dual band voltage controlled oscillators
01/04/2000US6011956 Means for predicting fading state in radio communication system
01/04/2000US6011952 Self-interference cancellation for relayed communication networks
01/04/2000US6011817 Transmission system and receiver with improved detection, and improved detection method
01/04/2000US6011812 Receiving method and receiver
01/04/2000US6011789 Broadband CDMA overlay system and method
01/04/2000US6011785 Wideband wireless base-station making use of time division multiple-access bus to effect switchable connections to modulator/demodulator resources
01/04/2000US6011756 Audiofrequency signal adapter with a rotary wire locating member
01/04/2000US6011597 Signal receiving apparatus and signal receiving system
01/04/2000US6011516 Multiband antenna with a distributed-constant dielectric resonant circuit as an LC parallel resonant circuit, and multiband portable radio apparatus using the multiband antenna
01/04/2000US6011496 Digital data coding/decoding method and apparatus
01/04/2000US6011488 Radio frequency interface device for a transponder
01/04/2000US6011450 Semiconductor switch having plural resonance circuits therewith
01/04/2000US6011323 Apparatus, method and article of manufacture providing for auxiliary battery conservation in adapters
01/04/2000US6010216 "Hear speak" two-way voice radio communications eyeglasses
01/03/2000CA2276625A1 Dual band transceiver
12/1999
12/30/1999DE19927489A1 Antenna booster amplifier for digital radio
12/30/1999DE19925525A1 Mobile telephone holder for motor vehicle
12/30/1999DE19828751A1 Verfahren zum Schutz von an ein Autoradio angeschlossenen Komponenten Method for protecting components connected to a car radio
12/30/1999DE19828226A1 Wireless network with base stations and terminals, optionally mobile
12/30/1999CA2272513A1 Pilot symbols
12/29/1999WO1999067935A1 Mobile telephone with protection device against radiations generated while it is used
12/29/1999WO1999067895A1 Method and apparatus for storing and accessing different chip sequences
12/29/1999WO1999067894A2 Two-way wireless communication between a group of devices
12/29/1999WO1999067893A1 Dual band cellular phone with two power amplifiers and power control circuit therefor
12/29/1999WO1999067892A1 Dual band cellular phone with two power amplifiers and a current detector for monitoring the consumed power
12/29/1999WO1999067890A1 Spread spectrum handshake for digital subscriber line telecommunications systems
12/29/1999WO1999067889A1 Protective case for a mobile telephone
12/29/1999WO1999067888A1 Device and method for controlling output power of mobile communication terminal
12/29/1999WO1999067887A2 Telecommunication system with channel sharing
12/29/1999WO1999067774A1 A noise suppressor having weighted gain smoothing
12/29/1999WO1999067762A1 User information system in public transport
12/29/1999WO1999067735A1 Anti-collision tag apparatus and system
12/29/1999WO1999056399A3 Simplified receiver for frequency shift keyed signals
12/29/1999WO1999056388A3 If-receiver
12/29/1999EP0967772A1 Telephone housing for handsfree use
12/29/1999EP0967771A2 Sim card terminal
12/29/1999EP0967760A2 Radio receiver for different data rates
12/29/1999EP0967757A2 Information processing apparatus and method and computer program for enabling a function change
12/29/1999EP0967748A2 Method and system for broadcasting multiplexed audio and data signals, receiving device for receiving said multiplexed audio and data signals, recording device for selectively recording the audio signals
12/29/1999EP0967747A2 Method and apparatus for receiving a digital transmission, comprising a computer-readable recording medium
12/29/1999EP0967742A2 Wireless Network
12/29/1999EP0967738A2 Proportional diversity radio receiver system
12/29/1999EP0967734A2 Multiuser interference canceler for DS-cdma system
12/29/1999EP0967733A2 Matched filter circuit
12/29/1999EP0967732A1 Method and apparatus for desensitization of a wireless receiver
12/29/1999EP0967717A2 Predistortion control for power reduction
12/29/1999EP0967593A1 Audio coding and quantization method
12/29/1999EP0967568A2 Identification element
12/29/1999EP0967120A2 Device for protecting components connected to a car radio
12/29/1999EP0966819A1 Phase-locked loop with continuously adjustable bandwith
12/29/1999EP0966818A1 Improvements in ultrafast time hopping cdma-rf
12/29/1999EP0966798A2 Network for transmitting data packets and method for operating the network
12/29/1999EP0966797A2 Highly bandwidth-efficient communications
12/29/1999EP0966796A1 Multichannel viterbi decoder
12/29/1999EP0966795A2 A reception method and a receiver
12/29/1999EP0966794A1 An improved cdma receiver
12/29/1999EP0966793A1 Audio coding method and apparatus
12/29/1999EP0932941A4 Slotline-mounted flip chip structures
12/29/1999EP0688478B1 Accessory for a mobile communication device
12/29/1999EP0636268B1 Apparatus, method, and system for compressing a digital input signal in more than one compression mode
12/29/1999CN2356449Y Very-high frequency diplexer high frequency ceramic skeleton
12/29/1999CN1240095A Base station for radio telecommunications system
12/29/1999CN1240079A Method for correcting errors from fading signal in frequency hopped spread spectrum communication system
12/29/1999CN1240070A Method for correcting errors from jamming signal in frequency hopped spread spectrum communication system
12/29/1999CN1240069A Dual-mode radiotelephone apparatus for digital or analog modulation
12/29/1999CN1240068A Modular assembly for centrally locating cellular telephone accessory connections
12/29/1999CN1240055A Dual-band antenna coupler for portable radiotelephone
12/29/1999CN1239859A Dual-band antenna shared device
12/29/1999CN1239852A Signal receiving and sending assembly for portable telephone set
12/29/1999CN1239851A Signal sending circuit
12/29/1999CN1239849A RF communications system operable in presence of repetitive interference source and related methods
12/29/1999CN1047900C Audio visual system
12/29/1999CN1047896C Power amplifier having nested amplitude modulation controller and phase modulation controller
12/29/1999CA2335742A1 Method and apparatus for storing and accessing different chip sequences
12/29/1999CA2335475A1 Mobile telephone with protection device against radiations generated while it is used
12/29/1999CA2332941A1 Spread spectrum handshake for digital subscriber line telecommunications systems
12/28/1999US6009470 Encoded multi-media terminal
12/28/1999US6009399 Method and apparatus for encoding digital signals employing bit allocation using combinations of different threshold models to achieve desired bit rates
12/28/1999US6009337 Method and arrangement for interference-protected power supply
12/28/1999US6009324 Method and device for monitoring a mobile telephone repeater