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)
08/1999
08/10/1999US5936534 Alarm circuit for residual capacity of battery in portable radio transmitting and receiving apparatus
08/10/1999US5934079 For an enclosure
08/10/1999CA2166881C Selective restart circuit for an electronic device
08/10/1999CA2165075C A method for validating a communication link
08/10/1999CA2161812C A method of power conservation
08/10/1999CA2154489C Apparatus and method for controlling the loop bandwidth of a phase locked loop
08/10/1999CA2148594C Sliding correlator
08/10/1999CA2139062C Pn code synchronizing method and transmitter and receiver in spread spectrum communication systems
08/10/1999CA2127366C Frequency control system
08/10/1999CA2121661C Apparatus and method for converting soft symbols into soft bits
08/10/1999CA2095216C Receiver with automatic frequency control
08/08/1999CA2269559A1 Radiation protection from cellular/pcs phones
08/05/1999WO1999039522A1 Apparatus and method for exchanging message between portable devices of the same kind
08/05/1999WO1999039484A2 Transmission method and radio system
08/05/1999WO1999039473A1 Frequency hopping adaptation
08/05/1999WO1999039472A1 Communication unit having spectral adaptability
08/05/1999WO1999039462A1 Selective frequency hopping
08/05/1999WO1999039452A1 System and method for asynchronous cdma cellular communication
08/05/1999WO1999039451A1 A method and apparatus for facilitating multi-rate data transmission by selecting a plurality of spreading codes
08/05/1999WO1999039450A1 A transceiver
08/05/1999WO1999039449A1 Amplifier module with two power amplifiers for dual band cellular phones
08/05/1999WO1999039448A1 A system for ensuring type acceptance requirements and enhancing equipment capabilities in a rf system
08/05/1999WO1999039447A2 Global tuner
08/05/1999WO1999039446A1 Apparatus and method for receiving a wideband communication signal in a wireless communication system
08/05/1999WO1999039445A1 Interference suppression using modal moment estimates
08/05/1999WO1999039444A1 METHOD AND APPARATUS FOR PERFORMING TARGETED INTERFERENCE SUPPRESSION _____________________________________________________________è
08/05/1999WO1999039443A1 Equalization techniques to reduce intersymbol interference
08/05/1999WO1999039433A1 Active impedance converter
08/05/1999WO1999039299A2 Apparatus and method for counting mutual events through interaction between devices of the same kind
08/05/1999WO1999039258A1 Portable data processing device
08/05/1999WO1999038728A1 Car radio with a removable control panel
08/05/1999WO1997024848A9 A method for identifying data transmission rate, and a receiver
08/05/1999DE4244971C2 Integrated laminated microwave circuit for motor vehicle communication system
08/05/1999DE4244967C2 Radiotelephone for use in mobile communication
08/05/1999DE19832565A1 Transmitter-receiver selection switching module used in portable telephone
08/05/1999CA2319030A1 A system for ensuring type acceptance requirements and enhancing equipment capabilities in a rf system
08/04/1999EP0933911A1 Equipment provided with switch-on memorizing means
08/04/1999EP0933882A2 Peak detecting circuit for detecting a peak of a time discrete signal by an approximate function
08/04/1999EP0933881A2 Spreading code estimation
08/04/1999EP0933880A2 Booster for a handy phone
08/04/1999EP0933879A2 Radio frequency transmitter
08/04/1999EP0933878A1 Cooling system for radio telecommunications equipment
08/04/1999EP0933862A1 Power circuit
08/04/1999EP0932996A2 Random access in a mobile telecommunications system
08/04/1999EP0932992A2 Method for radio signal transmission
08/04/1999EP0932988A1 Extending battery life in electronic apparatus
08/04/1999EP0932954A1 A class of low cross correlation non-palindromic synchronization sequences for code tracking in synchronous multiple access communication systems
08/04/1999EP0932942A2 Receiving method and receiver
08/04/1999EP0932941A1 Slotline-mounted flip chip structures
08/04/1999EP0932940A1 Radio receiver with a recording unit
08/04/1999EP0932939A1 Satellite broadcast system receiver
08/04/1999EP0932938A2 Arrangement in a communication system
08/04/1999EP0932524A1 Radio receiver
08/04/1999EP0932522A1 Radio receiver
08/04/1999EP0894369A4 Distribution of radio-frequency signals through low bandwidth infrastructures
08/04/1999EP0830727B1 Cooling device for a high-frequency receiver
08/04/1999EP0750291B1 Speech processor
08/04/1999EP0701752B1 A method and apparatus for determining signal usability
08/04/1999EP0677221B1 Method and arrangement for tuning a combiner filter
08/04/1999CN1225210A Method for efficient sampling in a correlator
08/04/1999CN1225209A A delay estimation method and a receiver
08/04/1999CN1225208A Method for doppler-replica harmonic avoidance in a GPS receiver
08/04/1999CN1225207A Pre-acquisition frequency offset removal in a GPS receiver
08/04/1999CN1225184A Low power parallel correlator for measuring correlation between digital signal segments
08/04/1999CN1225175A GPS receiver with efficient signal acquisition
08/04/1999CN1225174A Power efficient receiver
08/04/1999CN1224958A RF circuit module and chassis including amplifier
08/04/1999CN1224957A Battery saving in portable radio apparatus
08/04/1999CN1224956A Method for integrated billing in integrated wireline-wireless system
08/04/1999CN1224845A Apparatus and method for estimating speed in mobile communication
08/04/1999CN1044544C Transmitting, receiving and communicating method for bi-directional bus system, and bi-directional bus system
08/03/1999US5933781 For performing transit power control at a subscriber unit
08/03/1999US5933774 Location registering apparatus for use with a cellular telephone mobile station
08/03/1999US5933772 Closed coin holder for attachment to pager
08/03/1999US5933770 Low distortion tuner-receiver with bridge-type diplexer
08/03/1999US5933769 Portable telephone capable of decreasing noise
08/03/1999US5933768 Receiver apparatus, and associated method, for receiving a receive signal transmitted upon a channel susceptible to interference
08/03/1999US5933767 Apparatus and method for tuning the gain of a transmitter utilizing cartesian feedback
08/03/1999US5933765 Communication device having a reduced level of hazardous substances
08/03/1999US5933764 Password-protected pager
08/03/1999US5933590 Restoration of multiple span cuts with priority hand-off using SHN
08/03/1999US5933479 Remote service system
08/03/1999US5933464 System for processing coded data
08/03/1999US5933457 Receiving method and receiver
08/03/1999US5933456 Transmitter for and method of transmitting a wideband digital information signal, and receiver
08/03/1999US5933449 Switcher for flexibly interconnecting communication ports
08/03/1999US5933448 Automatic tuning of a radio transceiver
08/03/1999US5933447 For use as part of a spread-spectrum receiver
08/03/1999US5933446 Beamformer with adaptive processors
08/03/1999US5933424 For use in a communication system
08/03/1999US5933423 In a cellular radio system
08/03/1999US5933330 Portable radiotelephone arrangement having a battery pack and a detachable battery
08/03/1999US5933328 Compact mechanism for removable insertion of multiple integrated circuit cards into portable and other electronic devices
08/03/1999US5933122 Antenna switch for wireless antenna diversity telecommunications devices with two antennas
08/03/1999US5931693 Structure of terminal for coin-shaped battery
08/03/1999US5931683 Device with retractable contacts
08/03/1999CA2167401C Multibroadcast receiver and multibroadcast receiving system
08/03/1999CA2151943C Method and apparatus for integrating a plurality of input signals
08/03/1999CA2151657C An apparatus and method of configuring a cordless telephone for operating in a frequency hopping system
08/03/1999CA2140026C A method and apparatus for mitigating distortion effects in the determination of signal usability
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