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)
06/1998
06/03/1998EP0845172A1 Oscillator-transmitter with shared output circuit
06/03/1998EP0586635B1 Radio telephone
06/03/1998EP0586634B1 Radio telephone
06/03/1998CN1183874A TV/FM receiver for multimedia applications
06/03/1998CN1183866A Multifunction interactive communication system with circularly/elliptically polarized signal transmission and reception
06/03/1998CN1183865A Method and equipment for multirate coding and detection in multiple access mobile communication system
06/03/1998CN1183859A Intelligent battery charging in hand-held phone
06/03/1998CN1183682A Method and apparatus for spread spectrum channel assignment
06/03/1998CN1183673A Multiband high-efficiency linear power amplifier and high-efficiency power amplifier
06/03/1998CN1183652A Improved beeper direct recharging method, its connecting device and special recharger
06/03/1998CN1038633C Method and apparatus for noise burst detection in signal processor
06/02/1998US5761642 Device for recording and /or reproducing or transmitting and/or receiving compressed data
06/02/1998US5761636 Bit allocation method for improved audio quality perception using psychoacoustic parameters
06/02/1998US5761617 PLL synthesizer radio paging receiver capable of reducing an average power consumption
06/02/1998US5761615 Wide band zero if quadrature demodulator using a intermediate frequency and a single local oscillator
06/02/1998US5761614 Automated system and method for optimizing receive system performance
06/02/1998US5761612 Wireless receiver
06/02/1998US5761611 Radio telephone assembly
06/02/1998US5761610 Method and apparatus for dynamic radio communication menu
06/02/1998US5761299 Auxiliary component connector including microphone channel
06/02/1998US5761259 Apparatus, method and article of manufacture for carrier frequency compensation in a FM radio
06/02/1998US5761245 Method and a system for redundancy control of baseband channels in a telecommunications system
06/02/1998US5761239 Method and apparatus for despreading spread spectrum signals
06/02/1998US5761237 Method and apparatus for multiuser-interference reduction
06/02/1998US5761159 Automatic radio program recorder
06/02/1998US5761042 Radio frequency compatible multi-board cluster
06/02/1998US5760821 Electronic program guide schedule localization system and method
06/02/1998US5760749 Antenna integral-type transmitter/receiver system
06/02/1998US5760747 Energy diversity antenna
06/02/1998US5760745 Electrostatic capacitively coupled antenna device
06/02/1998US5760740 In a receiving system
06/02/1998US5760709 Road/vehicle communication method and device
06/02/1998US5760698 Method of selecting an input apparatus
06/02/1998US5760656 Temperature compensation circuit for a crystal oscillator and associated circuitry
06/02/1998US5760525 Surface acoustic wave device and communication system using it
06/02/1998CA2220760A1 Optical switching unit, particularly for switching to standby components in optical transmission systems
05/1998
05/28/1998WO1998023130A1 Hearing-adapted quality assessment of audio signals
05/28/1998WO1998023071A1 A programmable loop filter for carrier recovery in a radio receiver
05/28/1998WO1998023070A1 Passband dqpsk detector for a digital communications receiver
05/28/1998WO1998023069A1 An improved phase detector for carrier recovery in a dqpsk receiver
05/28/1998WO1998023049A1 Signal transmitter with automatic output control
05/28/1998WO1998023042A1 Verification of pn synchronization in a spread-spectrum communications receiver
05/28/1998WO1998023041A1 Docking and electrical interface for personal use communication devices
05/28/1998WO1998023021A2 A battery pack for a portable electric apparatus and a method for the charging thereof
05/28/1998CA2243361A1 Docking and electrical interface for personal use communication devices
05/28/1998CA2220817A1 Mobile communication terminal having an initial frequency acquisition mechanism
05/27/1998EP0844778A2 User interface for a radio telephone
05/27/1998EP0844777A2 User interface for a hand-portable phone
05/27/1998EP0844772A1 Bracelet telephone device
05/27/1998EP0844771A2 Telephone handset
05/27/1998EP0844765A2 Multicarrier receiver with an antenna array
05/27/1998EP0844759A1 Artificial fading for frequency offset mitigation
05/27/1998EP0844747A1 Receiver device for a radio communication system for receiving subscriber signals via a radio interface
05/27/1998EP0844743A2 Spread spectrum receiver for use in communication systems
05/27/1998EP0844493A1 Spurious frequency suppressor
05/27/1998EP0843934A1 Arrangement for suppressing an interfering component of an input signal
05/27/1998EP0843924A2 Equalizer with a sequence estimation method with state reduction for a receiver in a digital transmission system
05/27/1998EP0843920A1 Receiver and method for providing data in an improved format
05/27/1998EP0843916A1 Portable communication device comprising an antenna, wherein a deliberate mismatch is introduced between the communication device and the antenna within a frequency band
05/27/1998EP0843903A1 Receiver with stripline filter and stripline filter
05/27/1998EP0843828A2 Multipath error reduction in a spread spectrum receiver for ranging applications
05/27/1998EP0714575A4 Method and apparatus for creating a composite waveform
05/27/1998EP0582578B1 A method and a device for controlling a radio transmitter
05/27/1998CN1183197A TV/FM receiver for multimedia applications
05/27/1998CN1183196A TV/FM receiver for multimedia applications
05/27/1998CN1183183A Method and apparatus for providing acknoweledgments within a communication system
05/27/1998CN1183182A Receiving method and a receiver
05/27/1998CN1183181A AGC circuit arrangement for a tuner
05/27/1998CN1183179A Slope, drift and offset compensation in zero-if receivers
05/27/1998CN1183156A Alarm sensor multiplexing
05/27/1998CN1183018A Transmitter capable of reducing background noise
05/27/1998CN1183017A Mobile communication system
05/27/1998CN1183015A User's identifying module for mobile communication terminal and mobile communication terminal
05/27/1998CN1183013A Antenna switching circuit for radio telephone
05/27/1998CN1182998A Pocket power source with visible image display
05/27/1998CN1182987A Selecting calling receiver and controlling gain method
05/27/1998CN1182986A RAKE receiver
05/27/1998CA2218743A1 Transmitting/receiving facility and method for transmitting broadband signals as well as transmitting/receiving facility for receiving broadband signals
05/26/1998USRE35809 Digital signal encoding with quantizing based on masking from multiple frequency bands
05/26/1998US5758296 Mobile telephone receiver with adaptively inserted if filters and an if filter inserting method
05/26/1998US5758292 Telephone and cordless telephone capable of suppressing spurious interference
05/26/1998US5758290 Cordless telephone arranged for operating with multiple portable units in a frequency hopping system
05/26/1998US5758278 Method and apparatus for periodically re-activating a mobile telephone system clock prior to receiving polling signals
05/26/1998US5758276 Double super-heterodyne receiver with low-pass and high-pass filters controlled by respective switching devices
05/26/1998US5758275 Method and apparatus for scheduling adaptation for a notch filter
05/26/1998US5758274 Radio frequency receiver with automatic gain control
05/26/1998US5758273 Receiver dynamic range extension method
05/26/1998US5758271 Apparatus and method for optimizing the quality of a received signal in a radio receiver
05/26/1998US5758270 Level control circuit for receiver
05/26/1998US5758268 Transmitter
05/26/1998US5758267 Method and apparatus for orientation controlled parameter selection
05/26/1998US5758266 Multiple frequency communication device
05/26/1998US5758265 Transmitting and receiving apparatus for incorporation into an integrated circuit
05/26/1998US5758262 Apparatus for converting TV audio signals for reception on a nearby AM and/or FM receiver
05/26/1998US5757938 High efficiency encoding device and a noise spectrum modifying device and method
05/26/1998US5757929 Audio interface garment and communication system for use therewith
05/26/1998US5757921 Radio communication apparatus having common oscillator applied for PLL, conversion and scramble/descramble circuits
05/26/1998US5757870 Spread spectrum communication synchronizing method and its circuit
05/26/1998US5757864 Receiver with filters offset correction
05/26/1998US5757858 Dual-mode digital FM communication system
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