Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
11/1999
11/03/1999EP0885485B1 Antenna arrangement
11/03/1999EP0655161B1 Lost frame concealment
11/03/1999EP0655160B1 Transmission error concealment
11/03/1999EP0623259B1 An integrated circuit including a surface acoustic wave transformer and a balanced mixer
11/03/1999CN2347324Y Automotive steering wheel mobile telephone
11/03/1999CN2347323Y Placing rack of mobile telephone
11/03/1999CN2347314Y Calling sensing leather sleeve of mobile telephone
11/03/1999CN2347313Y Anti-falling device of remote controller
11/03/1999CN1234169A Randon access in mobile telecommunications system
11/03/1999CN1234158A Method and arrangement for calculating correlation
11/03/1999CN1234157A Method and apparatus for acquiring low duty-cycle reference signals in mobile communications environment
11/03/1999CN1234153A Transmission timing offset method for DS-CDMA mobile telephone systems
11/03/1999CN1234150A Receiving method and receiver
11/03/1999CN1234149A Frequency Division multiplexed transmission of sub-band signals
11/03/1999CN1234148A System and method for achieving extended radio coverage and additional capacity using extended frequency bands
11/03/1999CN1234147A Radio with improved reception
11/03/1999CN1233925A Dual band mobile phone hand set
11/03/1999CN1233912A Synchrodyning of VSB and QAM final I-F signals supplied by separate converters in QAM/VSB digital TV receiver
11/03/1999CN1233902A Radio telephone
11/03/1999CN1233891A Spread spectrum signal generating device for spread spectrum communication system
11/02/1999US5978824 Noise canceler
11/02/1999US5978690 Reducing power consumption in low noise radiophone amplifiers
11/02/1999US5978666 Slotline-mounted flip chip structures
11/02/1999US5978665 Receiver for extending the dynamic range of a received signal strength indicator
11/02/1999US5978664 Wireless digital communication device, and a peak-detector
11/02/1999US5978663 Antenna tuning circuit
11/02/1999US5978662 Circuit arrangement comprising a Cartesian amplifier
11/02/1999US5978661 Transmitter circuit and method of operation
11/02/1999US5978660 Frequency diversity process and device for an SHF carrier
11/02/1999US5978658 Portable analog communication device with selectable voice and data filters
11/02/1999US5978428 Apparatus and method for estimating a variable data rate
11/02/1999US5978423 Method and arrangement of signal tracking and a rake-receiver utilizing the arrangement
11/02/1999US5978413 Method and system for processing a plurality of multiple access transmissions
11/02/1999US5978412 Spread spectrum communication system
11/02/1999US5978411 Synchronizer for receiver of spread spectrum communication apparatus
11/02/1999US5978366 Methods and systems for reduced power operation of cellular mobile terminals
11/02/1999US5978362 Method and apparatus for eliminating intermodulation interference in cellular telephone systems
11/02/1999US5978039 Image control method and image control apparatus capable of compensating for disturbed TV image
11/02/1999US5977882 Infrared remote controlled in-line power switch
11/02/1999US5977835 Method and circuit arrangement for reducing passband ripple of a bandpass filter
11/02/1999CA2192498C Microphone expansion for background noise reduction
11/02/1999CA2163604C Electronic device housing having storage portion
10/1999
10/30/1999CA2270729A1 Radio frequency broadcast system for enclosed spaces
10/28/1999WO1999055087A1 Expanded information capacity for existing communication transmission systems
10/28/1999WO1999055034A1 Radio telecommunication system, base station and mobile subscriber terminal which exchange radio signals in accordance with a frequency hopping sequence
10/28/1999WO1999055033A1 Cdma receiver and cdma transmitter/receiver
10/28/1999WO1999055026A1 Method and apparatus for receiving a plurality of signals having different frequency bandwidths
10/28/1999WO1999055019A1 Mobile communication system
10/28/1999WO1999055017A1 High-speed pc modem connection system
10/28/1999WO1999055016A1 Wireless modem and method therefor for routing data to an application or to storage
10/28/1999WO1999055015A1 Direct conversion receiver
10/28/1999WO1999055014A1 Broadcasting transmitter system
10/28/1999WO1999055011A1 Channel encoding device and method for communication system
10/28/1999WO1999054998A1 Lnb drift search system for dbs products
10/28/1999WO1999054959A1 Antenna means and a handheld radio communication device including such means
10/28/1999WO1999054935A1 Portable communication equipment
10/28/1999WO1999043132A3 A method and a circuit for am demodulation
10/28/1999WO1999038337A3 Method and system for generating a complex pseudonoise sequence for processing a code division multiple access signal
10/28/1999WO1999038300A3 Radio telephone for spread-spectrum system using nonlinear modulation
10/28/1999DE19818003A1 Radio transmitter system especially for long, medium and short wave bands
10/28/1999DE19817962A1 Mobile telephone with integral global positioning system module for satellite navigation
10/28/1999CA2266274A1 Cooling electronic apparatus
10/27/1999EP0952713A2 A frequency and timing synchronization circuit making use of a chirp signal
10/27/1999EP0952701A2 Wireless communicating method and system, communicating station, and controlling station
10/27/1999EP0952696A2 Technique for communicating digitally modulated signals over an amplitude-modulation frequency band
10/27/1999EP0952682A2 CDMA mobile communications system and method with improved channel estimation and pilot symbol transmission
10/27/1999EP0952678A1 Digital modulation system using modified orthogonal codes to reduce autocorrelation sidelobes
10/27/1999EP0952677A2 Carrier for a radio telephone
10/27/1999EP0952676A2 Means for carrying a radio telephone
10/27/1999EP0952675A1 Radio with sleep circuit and method
10/27/1999EP0952674A2 Reception control system for automobiles
10/27/1999EP0952665A2 Slope, drift and offset compensation in zero-if receivers
10/27/1999EP0952543A1 Semiconductor device and method for manufacturing the same
10/27/1999EP0951887A2 Absorbent article
10/27/1999EP0951788A2 Process and arrangement for digital radio transmission between a base station and a plurality of subscriber stations
10/27/1999EP0951761A1 Signal transmitter with automatic output control
10/27/1999EP0951756A1 Multi-standard reception
10/27/1999EP0823150A4 Super low noise multicoupler
10/27/1999EP0632943B1 Method of eliminating repetitive interfering signals
10/27/1999CN1233380A Method for transmitting multiresolution audio signals in a radio frequency communication system
10/27/1999CN1233359A Multiple band receiver
10/27/1999CN1233338A System and methods for communicating desired audio information over a communications medium
10/27/1999CN1233141A Method for coverage optimization of multi-frequency assignment system
10/27/1999CN1233139A Apparatus for generating periodic beacon signals for use in CDMA base station
10/27/1999CN1233137A Radio paging receiver and method for controlling display auto-reset function
10/27/1999CN1233133A Television receiver
10/27/1999CN1233118A Slot timing detection method and circuit
10/27/1999CN1233117A CDMA/TDD mobile communication system and method
10/27/1999CN1233115A Infrared signal receiver with attenuating circuit
10/27/1999CN1233114A Radio telecommunications equipment
10/27/1999CN1046068C Digital selecting-pass radio microphone aid system for electrical teaching
10/26/1999US5974584 Parity checking in a real-time digital communications system
10/26/1999US5974376 Method for transmitting multiresolution audio signals in a radio frequency communication system as determined upon request by the code-rate selector
10/26/1999US5974333 Automobile acoustic unit having integrated cellular phone capabilities
10/26/1999US5974332 Built-in handfree and battery charging communication system for a vehicle
10/26/1999US5974306 Time-share I-Q Mixer system with distribution switch feeding in-phase and quadrature polarity inverters
10/26/1999US5974305 Dual band architectures for mobile stations
10/26/1999US5974304 Small radio transmitter receiver system
10/26/1999US5974303 Locking mechanism for battery housings
10/26/1999US5974302 Dual band cellular/PCS transceiver
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