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)
01/1998
01/08/1998WO1998000908A1 Circuit arrangement comprising a cartesian amplifier
01/08/1998WO1998000837A1 Audio signal coding and decoding methods and audio signal coder and decoder
01/08/1998WO1998000056A1 Architecture for tdma medical telemetry system
01/08/1998DE19727718A1 HF module with HF modulator and TV tuner for VCR
01/08/1998DE19710474A1 Temperature compensated logarithmic amplifier for mobile telephone
01/08/1998DE19626384A1 Data input device with single-handed operation
01/08/1998CA2259654A1 Method and apparatus for using duality and also a system for communicating digital information
01/07/1998EP0817450A2 Protective sheath for cordless telephones
01/07/1998EP0817403A2 Digital mobile telephone which maintains synchronized operation with a cellular or mobile system
01/07/1998EP0817397A1 Method for switching a channel from a first to a second propagation path
01/07/1998EP0817395A1 Adaptive transform coding system and corresponding decoding system
01/07/1998EP0817394A2 Transmitter-receiver
01/07/1998EP0817393A2 Portable power source with visual image display
01/07/1998EP0817392A2 Radio selective call receiver and method of displaying remaining time
01/07/1998EP0817370A1 Radio communication device capable of setting a frequency channel with a small frequency step
01/07/1998EP0816862A2 Distress message signal sending device
01/07/1998EP0815689A1 Adapter module for direct-to-home television broadcast receiving system
01/07/1998EP0815686A1 Satellite receiver computer adapter card
01/07/1998EP0815668A2 Transmitter for and method of transmitting a wideband digital information signal, and receiver
01/07/1998EP0815667A1 A method for frame quality detection and a receiver
01/07/1998EP0815661A1 Interference reduction in tdm-communication/computing devices
01/07/1998EP0815653A1 Compensated ring mixers
01/07/1998EP0815652A2 A receiver and arrangement for detecting adjacent channel interference
01/07/1998EP0815638A1 Transponder for electronic identification system
01/07/1998EP0815637A1 Integrated circuit full-wave rectifier
01/07/1998EP0815613A1 Dual frequency antenna with integral diplexer
01/07/1998EP0815509A1 Method and apparatus for data encoding and communication over noisy media
01/07/1998EP0815475A1 Process and device for producing a transponder unit and transponder unit thus produced
01/07/1998EP0784448A4 Signal processing apparatus
01/07/1998EP0775388A4 Power consumption control method and apparatus for a communication system subscriber unit
01/07/1998EP0746913B1 Process for the cascade coding and decoding of audio data
01/07/1998EP0727111A4 Spread spectrum spectral density techniques
01/07/1998EP0711417B1 Method and apparatus for controlling the exposure to rf transmissions
01/07/1998EP0645064B1 Ground radio transmitting and receiving apparatus
01/07/1998CN1169801A Diversity receiver and control method therefor
01/07/1998CN1169645A System and method for collection of transmission characteristics
01/07/1998CN1169626A Combined housing system
01/07/1998CN1169625A CDMA transmitter having variable gain circuit inserted between transmitter frequency-converter and transmitter antenna
01/06/1998US5706428 Multirate wireless data communication system
01/06/1998US5706396 Error protection system for a sub-band coder suitable for use in an audio signal processor
01/06/1998US5706393 Audio signal transmission apparatus that removes input delayed using time time axis compression
01/06/1998US5706354 AC line-correlated noise-canceling circuit
01/06/1998US5706350 Stereophonic decoder
01/06/1998US5706315 Automatic frequency control device for tuning an intermediate frequency signal to a target frequency
01/06/1998US5706309 Process for transmitting and/or storing digital signals of multiple channels
01/06/1998US5706307 Method and arrangement for the determination of the ratio for common-channel or adjacent-channel interferers in digital mobile communication networks
01/06/1998US5706284 Method for establishing communication path between mobile stations
01/06/1998US5706277 Method for changing-over to standby for a transmission device for the bidirectional transmission of digital signals and arrangement for carrying out the method
01/06/1998US5706275 Data transmission method, transmitter, and receiver
01/06/1998US5706215 Method and system for adjusting replacement component characteristics
01/06/1998US5706060 Circuit arrangement for applying an antenna signal directly to T.V. receiver and bypassing a VCR
01/06/1998US5704094 Electronic device having a cam assembly functioning as a depressible hinge
01/06/1998CA2047398C Luminance signal noise suppressor
01/03/1998CA2209597A1 Dual mode transceiver
01/02/1998DE19726270A1 Radio device using digital modulation
01/02/1998DE19625689A1 Remote controller e.g. for television set
01/02/1998DE19625588A1 Radio remote control system operation method e.g. for garage door
01/02/1998DE19624792A1 Foot-pedal operated device for operating motor vehicle radio, CD- or cassette-player
01/02/1998DE19624762A1 Verfahren zur Überwachung der Zugangsberechtigung bei einem Rundfunkempfangsgerät und Rundfunkempfangsgerät Procedures for monitoring the access authorization in a radio receiver and radio receiver
01/02/1998DE19624184A1 Spectacles, such as sun-glasses, with radio broadcast reception device
12/1997
12/31/1997WO1997050206A1 Cdma communication system which selectively suppresses data transmissions during establishment of a communication channel
12/31/1997WO1997050202A2 Method and apparatus for communicating information
12/31/1997WO1997050201A1 A method and system for providing synchronization in a stream of messages and a transmitter and a receiver for use in such a system
12/31/1997WO1997050194A2 A method of controlling initial power ramp-up in cdma systems by using short codes
12/31/1997WO1997050191A1 Method and apparatus for rate determination in a communication system
12/31/1997WO1997050189A1 Arrangement and method relating to the handling of redundant signals and a telecommunications system comprising such
12/31/1997WO1997050187A1 Satellite receiver
12/31/1997WO1997050186A2 System and method for adaptive interference cancelling
12/31/1997WO1997050173A1 Efficient multichannel filtering for cdma modems
12/31/1997WO1997050172A1 Low power audio device
12/31/1997WO1997050039A1 Parallel packetized intermodule arbitrated high speed control and data bus
12/31/1997WO1997049576A1 Device for monitoring the right of access in a radio receiver and radio receiver
12/31/1997CN1169220A Ultrawide-band communications system and method
12/31/1997CN1169219A Digital transmission system for transmitting digital audio signal being in form of samples of a specific wordlength and occurring at specific sampling rate
12/31/1997CN1169216A Wide frequency spectrum TV tuner with single local oscillator
12/31/1997CN1169091A Electronic card reader for reading cards of different formats, and portable telephone including such reader
12/31/1997CN1169090A Multiband mobile unit communication apparatus
12/31/1997CN1169089A Mobile radio communication apparatus
12/31/1997CN1169088A Method for accessing cell using two pilot channels in CDMA communication system of asynchronous or quasi-synchronous mode
12/31/1997CN1169086A Radio selective call receiver capable of adjusting radio signal level
12/31/1997CN1169066A Radio receiving apparatus
12/31/1997CN1169065A Receiving apparatus, receiving method, and communication system
12/31/1997CN1169061A Amplifier circuit for sound frequency signal
12/31/1997CN1036885C Method and apparatus for inserting sound signal into synchronous and compressed data signal
12/31/1997CA2818770A1 Method and subscriber unit for performing an access procedure
12/31/1997CA2676866A1 Method and subscriber unit for performing an access procedure
12/31/1997CA2434522A1 Efficient multichannel filtering for cdma
12/31/1997CA2258002A1 Method and apparatus for communicating information
12/30/1997US5703999 Process for reducing data in the transmission and/or storage of digital signals from several interdependent channels
12/30/1997US5703947 Portable telephone equipment for biasing a switching member to a normally neutral position
12/30/1997US5703945 Hands free cordless phone caddy
12/30/1997US5703932 For use in an automobile
12/30/1997US5703910 Digital radio receiver
12/30/1997US5703907 Method for data compression
12/30/1997US5703874 Broadband CDMA overlay system and method
12/30/1997US5703873 Method and apparatus for synchronizing subscriber equipment with base stations in a CDMA radio network
12/30/1997US5703595 In a communication system
12/30/1997US5703579 Decoder for compressed digital signals
12/30/1997US5703573 Transmitter-receiver for non-contact IC card system
12/30/1997US5703545 High frequency filter circuit