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)
10/1998
10/21/1998CN1196615A Broadboard low-noise low intermodulation distortion receiver
10/21/1998CN1196614A Receiving apparatus portable receiving apparatus and electronic watch
10/21/1998CN1196611A Scalable audio coding/decoding method and apparatus
10/21/1998CA2232256A1 Charging a transponder in a security system
10/20/1998US5826199 Digital portable telephone with voice recognition and voice codec processing on same digital signal processor
10/20/1998US5826198 Transmission of data over a radio frequency channel
10/20/1998US5826197 Mobile communication system using base station frequency correction scheme
10/20/1998US5826181 Radio frequency noise reduction arrangement
10/20/1998US5826180 Near homodyne radio frequency receiver
10/20/1998US5826178 Loop antenna with reduced electrical field sensitivity
10/20/1998US5826177 Radio transmitter
10/20/1998US5826174 Method and apparatus for improving data transmission over a wireless system by optical spectrum positioning
10/20/1998US5826170 Satellite communication power management system
10/20/1998US5825979 Digital audio signal coding and/or deciding method
10/20/1998US5825976 Device and method for efficient utilization of allocated transmission medium bandwidth
10/20/1998US5825898 System and method for adaptive interference cancelling
10/20/1998US5825897 Noise cancellation apparatus
10/20/1998US5825888 Descrambling device
10/20/1998US5825835 Multi-user acquisition procedure for multipoint-to-point synchronous CDMA systems
10/20/1998US5825827 Dynamically compensated linear regulator for pulsed transmitters
10/20/1998US5825814 High speed, high and medium frequency communication system
10/20/1998US5825813 Transceiver signal processor for digital cordless communication apparatus
10/20/1998US5825812 Suppressed side lobe direct-sequence-spread-spectrum radio communication method and device
10/20/1998US5825810 MSK spread-spectrum receiver which allows CDMA operations
10/20/1998US5825809 Digital filter having an energy level detector for selecting a coefficient
10/20/1998US5825808 Random parity coding system
10/20/1998US5825807 System and method for multiplexing a spread spectrum communication system
10/20/1998US5825806 Modulated spread spectrum in RF identification systems method
10/20/1998US5825805 Spread spectrum communication system
10/20/1998US5825756 Receiver for FM data multiplex broadcasting
10/20/1998US5825411 Video signal routing system
10/20/1998US5825327 GPS receivers and garments containing GPS receivers and methods for using these GPS receivers
10/20/1998US5825320 Gain control method for audio encoding device
10/20/1998US5825310 Signal encoding method
10/20/1998US5825299 Object identification system
10/20/1998US5825227 Switching circuit at high frequency with low insertion loss
10/20/1998CA2173376C Multi-band digital receiving apparatus and method with bandwidth reduction
10/17/1998CA2202956A1 Personal communications system
10/15/1998WO1998045979A1 Radio communication equipment
10/15/1998WO1998045972A2 An adaptive weight update method and system for a discrete multitone spread spectrum communication system
10/15/1998WO1998045967A2 Reducing interference in a mobile communications system
10/15/1998WO1998045963A1 System and method for enhancing speech intelligibility utilizing wireless communication
10/15/1998WO1998045961A2 Methods and apparatus for burst-mode cdma dsss communications receiving systems
10/15/1998WO1998045960A1 Multiple-rate direct sequence architecture utilizing a fixed chipping rate and variable spreading code lengths
10/15/1998WO1998045959A1 A method for compressing an audio-visual signal
10/15/1998WO1998045958A1 Bus arbitrators for common local oscillators in cellular radiotelephone base stations
10/15/1998WO1998045937A1 Radio communications apparatus with attenuating ear pieces for high noise environments
10/15/1998WO1998032239A3 Jamming suppression of spread spectrum antenna/receiver systems
10/15/1998WO1998025369A3 Method for correcting errors from jamming and fading signals in a frequency hopped spread spectrum communication system
10/15/1998DE19715052A1 Verfahren zur Erstellung und Speicherung von benutzerspezifischen Bedienmenüs und Rundfunkempfänger Method for creating and storing custom control menus and radio receiver
10/15/1998CA2283897A1 Bus arbitrators for common local oscillators in cellular radiotelephone base stations
10/14/1998EP0871342A2 Mobile station integrating radio communication and localisation functions and method therefor
10/14/1998EP0871299A2 A synchronization circuit with correlated signal in the direct spread spectrum telecommunication system
10/14/1998EP0871298A2 Complex despreading receiver
10/14/1998EP0871297A2 Communication system, transmitter and receiver
10/14/1998EP0871293A2 Audio processing for audio visual equipment
10/14/1998EP0871236A2 An antenna arrangement for small-size radio communication devices
10/14/1998EP0870368A1 Compressive communication and storage system
10/14/1998EP0870361A1 Efficient parallel-stage power amplifier
10/14/1998EP0870298A2 Noise cancellation and noise reduction apparatus
10/14/1998EP0870285A1 Method and system for data transfer
10/14/1998EP0870201A1 Antenna adapter
10/14/1998EP0815509A4 Method and apparatus for data encoding and communication over noisy media
10/14/1998EP0764318B1 Portable playback device for musical accompaniment
10/14/1998EP0647375B1 Method and apparatus for objective speech quality measurements of telecommunication equipment
10/14/1998CN1196144A Method and apparatus for spread-spectrum channel estimation
10/14/1998CN1196143A Radio apparatus with several frequency ranges
10/14/1998CN1196123A Multipath error reduction in spread spectrum receiver for ranging applications
10/14/1998CN1195956A Initial synchronization method and receiver for DS-CDMA inter base station asynchronous cellular system
10/14/1998CN1195940A Audio decoding device and signal processing device
10/14/1998CN1195933A Demodulating method and apparatus, receiving method and apparatus and communication apparatus
10/14/1998CN1195930A Audio signal coding method and apparatus
10/14/1998CN1195906A Multi-band antenna structure for portable radio
10/13/1998US5822726 Speech presence detector based on sparse time-random signal samples
10/13/1998US5822704 Mobile radio unit for use in dual-mode cellular communications system
10/13/1998US5822692 Data communication device
10/13/1998US5822689 Circuit and method using data synchronization for battery power conservation in a paging receiver
10/13/1998US5822688 Method for enhancing the reception sensitivity in homodyne recievers
10/13/1998US5822687 Method and apparatus for automatic tuning calibration of electrically tuned filters
10/13/1998US5822684 Antenna switching circuit and wireless communication system
10/13/1998US5822681 Method for assigning band port channels in an unlicensed personal communications system
10/13/1998US5822427 Battery charging for a plurality of different cellular telephone
10/13/1998US5822384 Search method for acquisition of time synchronization between a spreading sequence of a receiver and that of a transmitter
10/13/1998US5822378 Receiver, a demodulator, and a demodulation method
10/13/1998US5822368 Method for use in a receiver
10/13/1998US5822366 Transceiver and method for generating and processing complex I/Q-signals
10/13/1998US5822365 Variable correlator
10/13/1998US5822364 Receiving apparatus for spectrum spread system
10/13/1998US5822363 Transmission process having spectrum spread phase differential modulation adn demodulation using orthogonal pseudorandom sequences
10/13/1998US5822362 Sinusoidal phase modulation method and system
10/13/1998US5822360 Method and apparatus for transporting auxiliary data in audio signals
10/13/1998US5821903 Conformal antenna for wireless local area network transceivers
10/13/1998US5821873 Method and apparatus for saving power in a selective call receiver
10/13/1998US5821838 Double tuning circuit of TV tuner
10/13/1998US5821813 Bidirectional amplifier
10/13/1998US5821811 Bypass device in an amplifier unit
10/13/1998US5821738 Power supply with single DC/DC converter selectively outputting either of two voltage levels
10/13/1998CA2148128C Battery pack retention apparatus
10/13/1998CA2116219C Radio information and communication system using multicarrier spread-spectrum transmission system
10/13/1998CA2106140C Fsk receiver having a pll local oscillator operable in intermittent operation in accordance with its phase locked state
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