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)
07/1998
07/02/1998WO1998028926A2 Access technique of channel hopping communications system
07/02/1998WO1998028921A2 Gsm transceiver with portable protocol stack
07/02/1998WO1998028860A1 A mobile communication unit and a radio transmitter for communicating with such mobile communication unit
07/02/1998WO1998028859A1 Method of generating a carrier wave of common channels, and a radio system
07/02/1998WO1998028856A1 Radio telephone with separate antenna for stand-by mode
07/02/1998WO1998027802A2 Power spectral density technique
07/02/1998WO1998020577A3 A radio telephone with high antenna efficiency
07/02/1998WO1998011675A3 Receiving method and receiver
07/02/1998DE19647399C1 Gehörangepaßte Qualitätsbeurteilung von Audiotestsignalen Hearing Adapted quality assessment of audio test signals
07/02/1998CA2275649A1 Active prevention of radio frequency emissions from a mobile communications unit in restricted areas
07/01/1998EP0851704A2 Optical protection switching system
07/01/1998EP0851650A2 Method and apparatus for the inputting of parameters in a device with an interconnection apparatus for connection to the telecommunication network
07/01/1998EP0851647A2 Cellular mobile telephone apparatus and method for transmitting a response message to an incoming call
07/01/1998EP0851639A2 QPSK modulated backscatter system
07/01/1998EP0851611A2 CDMA Cellular Radio Transmission System
07/01/1998EP0851605A2 Receiving circuit
07/01/1998EP0851603A2 System and method for spread spectrum code position modulation and wireless local area network employing the same
07/01/1998EP0851601A2 CDMA multi-code radio reception apparatus
07/01/1998EP0851600A2 Spread-spectrum multipath receiver
07/01/1998EP0851599A1 Inexpensive modulated backscatter reflector
07/01/1998EP0851598A2 Dual mode receiver and radio transmitter
07/01/1998EP0851597A2 Method for checking the compatibility of a mobile station and a functional unit; a mobile station and a functional unit
07/01/1998EP0851596A1 Mobile communications handsets
07/01/1998EP0851595A2 Holder for communications unit
07/01/1998EP0851593A2 Receiving portion of radio communication device
07/01/1998EP0851592A2 Synthesizer receiver
07/01/1998EP0851580A1 Tuner for cable modem
07/01/1998EP0851576A2 High-frequency amplifier
07/01/1998EP0851574A1 Two-output low-noise down converter circuit
07/01/1998EP0851530A2 Antenna apparatus in wireless terminals
07/01/1998EP0851377A1 Passenger, baggage, and cargo reconciliation system
07/01/1998EP0851239A1 Radio communication system with tag location facility
07/01/1998EP0850512A2 Radio apparatus with several frequency ranges
07/01/1998EP0850426A1 Transponder arrangement
07/01/1998CN1186589A Compact transponder and manufacture thereof
07/01/1998CN1186575A Temperature compensated automatic gain control
07/01/1998CN1186534A Advanced embedded code hopping system
07/01/1998CN1186401A Intermediate frequency selecting device for use in dual band cellular telephone and method thereof
07/01/1998CN1186400A Base band signal transmitting device in base station in mobile communications system using CDMA
07/01/1998CN1186389A SIR measurement apparatus
07/01/1998CN1186388A Tranmission/reception apparatus
06/1998
06/30/1998US5774800 Radio communication apparatus with reference frequency control based on stored characteristic control data
06/30/1998US5774799 Automatic frequency control with adjacent channel interference protection
06/30/1998US5774798 Low power data receiver combined with audio receiver
06/30/1998US5774797 Portable telephone
06/30/1998US5774794 Antenna for a portable radio telephone
06/30/1998US5774793 System and method for interfacing diversely controlled devices to a bus connector having a common signal format
06/30/1998US5774784 Temperature control system for electronic apparatus
06/30/1998US5774673 System for communicating between a dynamic group of apparatuses
06/30/1998US5774555 Switched capacitor bandpass filter for detecting pilot signal
06/30/1998US5774506 Data receiving apparatus
06/30/1998US5774496 Method and apparatus for determining data rate of transmitted variable rate data in a communications receiver
06/30/1998US5774495 Communication apparatus
06/30/1998US5774494 Frequency error correction device of a spread-spectrum communication receiver
06/30/1998US5774492 Low-complexity direct conversion receiver for delay-and-correlate transmitted reference signaling
06/30/1998US5774187 Audio/visual apparatus for controlling control parameters
06/30/1998US5774093 Circuit arrangement for processing a first or a second high-frequency signal
06/30/1998US5774062 Tag responsive to high-frequecy for varying capacitance of tuning capacitor
06/30/1998US5774022 Digital clock recovery loop
06/30/1998US5774017 Multiple-band amplifier
06/30/1998CA2222320A1 Inexpensive modulated backscatter reflector
06/30/1998CA2220266A1 Optical protection switching system
06/30/1998CA2219268A1 Subcarrier frequency division multiplexing of modulated backscatter signals
06/30/1998CA2219266A1 Qpsk modulated backscatter system
06/30/1998CA2219075A1 In-building personal pager and identifier
06/30/1998CA2218805A1 Passenger, baggage, and cargo reconciliation system
06/30/1998CA2117829C Perceptual coding of audio-signals
06/30/1998CA2075051C Signal weighting system for digital receiver
06/25/1998WO1998027766A2 Method and device for reducing electricity consumption in mobile multimode telecommunication terminals
06/25/1998WO1998027702A2 A wrist-mounted telephone device
06/25/1998WO1998027676A1 Fm multiplex broadcasting receiver and storage of received data in fm multiplex broadcasting receiver
06/25/1998WO1998027671A1 Interference rejection combining with frequency correction
06/25/1998WO1998027670A1 Wireless communication system including a plurality of selectable antennas and wireless communications methods
06/25/1998WO1998027667A2 Automatic channel switching for jamming avoidance in burst-mode packet data wireless communication networks
06/25/1998WO1998027666A1 Multipath equalization using taps derived from a parallel correlator
06/25/1998WO1998027665A1 Apparatus and method for communicating voice and data between a customer premises and a central office
06/25/1998WO1998027664A1 Radio receiver, radio receiving method, and audio transmitter
06/25/1998WO1998027663A2 System for improving the quality of a received radio signal
06/25/1998WO1998027652A1 Temperature compensation circuit for a crystal oscillator and method of providing same
06/25/1998WO1998027651A1 Temperature compensation circuit for a crystal oscillator
06/25/1998WO1998027523A1 System for extending infrared remote control
06/25/1998WO1998027508A1 Method and device for remote identification
06/25/1998WO1998027504A2 Method and apparatus for embedding auxiliary data in a primary data signal
06/25/1998WO1998026939A1 Semiconductor device and method for manufacturing the same
06/25/1998WO1998021834A3 Frequency hopping method and radio system
06/25/1998WO1997050194A3 A method of controlling initial power ramp-up in cdma systems by using short codes
06/25/1998DE19752746A1 Time signal receiver with electronically tunable resonant circuit
06/25/1998DE19653840A1 Hand transmitter for remote control of central locking
06/25/1998DE19651709A1 Verfahren zum Betreiben eines Netzes von Sekundärnutzern A method of operating a network of secondary users
06/25/1998DE19651708A1 Netz zum Übertragen von Datenpaketen und Verfahren zum Betreiben des Netzes Network for transmitting data packets, and method of operating the network
06/25/1998CA2275615A1 Interference rejection combining with frequency correction
06/25/1998CA2274521A1 A wrist-mounted telephone device
06/25/1998CA2273993A1 Method and apparatus for embedding auxiliary data in a primary data signal
06/25/1998CA2273945A1 Semiconductor device and manufacturing method thereof
06/25/1998CA2272576A1 Apparatus and method for communicating voice and data between a customer premises and a central office
06/24/1998EP0849954A2 Navigation among grouped television channels
06/24/1998EP0849948A2 Remote control for cable television delivery system
06/24/1998EP0849903A2 Receiver for receiving text-based multiplex broadcasts
06/24/1998EP0849892A2 Signal multiplexing method and transmitting/receiving apparatus therefor
06/24/1998EP0849888A2 Interference canceller for use in a multibeam-antenna CDMA communication system
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