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)
11/1999
11/10/1999CN1234696A Selective paging wireless receiver using direct conversion method
11/10/1999CN1234689A Communication system
11/10/1999CN1234678A Multi-function audio system and method of controlling the same
11/10/1999CN1234675A Apparatus including storage for storing press of starting press-button
11/10/1999CN1234674A Method and apparatus for preventing mobile telephone from too hot
11/10/1999CN1234656A Demodulation apparatus and demodulation method
11/10/1999CN1234655A Method of removing adjacent-jamming of amplitude modulation and circuit thereof
11/10/1999CN1234648A Power amplifier
11/10/1999CN1234629A Split antenna special for clock
11/10/1999CN1234626A Portable electronic device with antenna
11/10/1999CN1234624A Medium wave filber, receiving-sending shared device and communication apparatus
11/10/1999CN1046385C A method for a transmitter to compensate for varying loading without an isolator
11/10/1999CN1046380C Antenna for portable antenna telephone
11/09/1999US5983192 Audio processor
11/09/1999US5983175 Audio coding method
11/09/1999US5983119 Wireless communication device antenna input system and method of use
11/09/1999US5983113 CDMA communication system using orthogonal code
11/09/1999US5983105 Method and receiver implemented on the rake principle
11/09/1999US5983089 Slotline-mounted flip chip
11/09/1999US5983088 Wide frequency spectrum television tuner with single local oscillator
11/09/1999US5983086 Portable information terminal device with radio selective-calling receiver
11/09/1999US5983085 Method and apparatus that compensates for output power variations in a transmitter by using scaling factors to scale the baseband input signal
11/09/1999US5983084 Transmitter having an improved LC oscillator
11/09/1999US5983081 Method for generating frequencies in a direct conversion transceiver of a dual band radio communication system, a direct conversion transceiver of a dual band radio communication system and the use of this method and apparatus in a mobile station
11/09/1999US5983078 Channel spacing for distortion reduction
11/09/1999US5983077 Systems and methods for automatic deviation setting and control in radio transmitters
11/09/1999US5983070 Method and system providing increased antenna functionality in a RF distribution system
11/09/1999US5982901 Noise suppressing apparatus capable of preventing deterioration in high frequency signal characteristic after noise suppression and in balanced signal transmitting system
11/09/1999US5982884 Casing for a cordless telephone, and assembly of a casing with a cordless telephone
11/09/1999US5982883 Telephone comprising a sliding microphone
11/09/1999US5982825 Method and apparatus for cancelling interference jamming in digital radio transmission
11/09/1999US5982823 Direct frequency selection and down-conversion for digital receivers
11/09/1999US5982817 Transmission system utilizing different coding principles
11/09/1999US5982811 Method for efficient sampling in a correlator
11/09/1999US5982810 Signal extraction circuit and correlator utilizing the circuit
11/09/1999US5982809 Method and apparatus for carrier recovery and compensation in spread spectrum communications
11/09/1999US5982808 System and method for communicating with plural remote transmitter
11/09/1999US5982807 High data rate spread spectrum transceiver and associated methods
11/09/1999US5982763 Reception timing detection circuit of CDMA receiver and detection method
11/09/1999US5982637 Electric apparatus mounted on vehicle
11/09/1999US5982520 Personal storage device for application and data transfer
11/09/1999US5982411 Navigation among grouped television channels
11/09/1999US5982242 Circuit for synchronizing transmission local oscillating frequencies in digital microwave system
11/09/1999US5982237 Digital clock recovery loop
11/09/1999US5982235 Automatic gain control circuit
11/09/1999US5982215 Analog signal transmission circuit
11/09/1999US5982167 Tone generator and transmitter card for use in a flight line test set
11/09/1999US5982149 Device of a micro mobile phone battery charger
11/09/1999US5982103 Compact radio frequency transmitting and receiving antenna and control device employing same
11/09/1999US5980310 Power supply unit for portable apparatus and of the type enabling various types of power source to be used, and corresponding portable apparatus
11/09/1999US5979836 Panel detaching apparatus for car-mounted audio system
11/09/1999US5979175 Portable insulated cooler with built-in audio system
11/09/1999US5978975 Toilet tank lid with stereo sound system
11/09/1999CA2182852C Shield assembly and method of shielding suitable for use in a communication device
11/09/1999CA2119971C Variable length codeword packer
11/06/1999CA2271226A1 Methods and apparatus for providing power control in a multi-carrier wide band cdma system
11/05/1999CA2236649A1 Method and apparatus for encoding of digital signals for transmission and/or storage, and decoding such encoded signals following such transmission and/or storage
11/04/1999WO1999056513A1 Eas pedestal and method for making the same
11/04/1999WO1999056470A1 Method and apparatus for decoding an audio signal
11/04/1999WO1999056448A1 Wrist mobile phone
11/04/1999WO1999056444A1 Method and apparatus for performing a modulation
11/04/1999WO1999056441A1 Pre-equalization for reducing intersymbol interference and multiple access interference
11/04/1999WO1999056425A1 Transmitter
11/04/1999WO1999056414A1 Backscatter interrogators, communication systems and backscatter communication methods
11/04/1999WO1999056405A1 Power level arbitration between base station and mobile station in mobile communication system
11/04/1999WO1999056402A1 Radio communications apparatus and method of communicating control data for use in a radio communications apparatus
11/04/1999WO1999056401A1 Circuit for reduction of cross modulation and increased battery life in a battery powered transceiver
11/04/1999WO1999056400A1 Method for neutralising a transmitter tube
11/04/1999WO1999056399A2 Simplified receiver for frequency shift keyed signals
11/04/1999WO1999056388A2 If-receiver
11/04/1999WO1999043101A9 Forward link power control in a cellular system using nt/i0 values
11/04/1999WO1999043090A9 Quadrature-free rf receiver for directly receiving angle modulated signal
11/04/1999WO1999038281A9 Spread spectrum phase modulation for suppression of electromagnetic interference in parallel data channels
11/04/1999WO1999038270A3 Receiving spread spectrum signals with narrowband interference
11/04/1999WO1999037099A9 Systems and methods for wireless communications
11/04/1999DE19910904A1 Signal quality measuring receiver for reception of digital modulated broadcast signal
11/03/1999EP0954210A1 Cooling electronic apparatus
11/03/1999EP0954197A2 Optical transmission system including optical restoration
11/03/1999EP0954195A1 Transmission method in a UMTS radio-telephone network allowing handover preparation towards a GSM cell while communicating in an UMTS cell
11/03/1999EP0954194A2 Soft handoff method for a mobile radio communication system
11/03/1999EP0954191A1 Adaptive digital radio communication system
11/03/1999EP0954176A2 Reminder system for broadcast and non-broadcast events
11/03/1999EP0954133A1 Method and device for transmitting and receiving data signals according to the DSSS technique
11/03/1999EP0954132A2 Receiver for Digital Audio Broadcasting comprising a dynamic range control system
11/03/1999EP0954131A2 Broadcast receiver comprising both a receiver for Digital Audio Broadcasts as well as an FM broadcast receiver with a Radio Data System decoder
11/03/1999EP0954130A2 Receiver for receiving Digital Audio Broadcast (DAB) programmes comprising language information
11/03/1999EP0954124A2 CDMA cellular communication system and method of detecting spreading code
11/03/1999EP0954123A1 Base station transceiver for a radio communications system
11/03/1999EP0954113A2 Spread-spectrum telephony with accelerated code acquisition
11/03/1999EP0954112A2 CDMA multi-user receiving apparatus including interference canceller with optimal receiving state
11/03/1999EP0954111A1 Radio communications apparatus and method of communicating control data for use in a radio communications apparatus
11/03/1999EP0954110A2 Loop-back circuit for duplex transceiver
11/03/1999EP0954103A1 Delay locked loop and method of operation
11/03/1999EP0954096A2 ALC circuit for a transmitter device
11/03/1999EP0954095A2 Power amplifier
11/03/1999EP0954053A2 Array antenna radio communication apparatus
11/03/1999EP0954051A1 Slot antenna in particular for a timepiece
11/03/1999EP0954047A2 Dielectric filter, transmission/reception sharing unit, and communication device
11/03/1999EP0953232A1 Compensation of delay in linearization loop of power amplifier
11/03/1999EP0890086A4 Digital interconnects of a pc with consumer electronics devices
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