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
10/01/1998WO1998043425A1 Smartcard for use with a receiver of encrypted broadcast signals, and receiver
10/01/1998WO1998043421A1 Broadcast receiving system comprising a computer and a decoder
10/01/1998WO1998043417A1 Wireless receiving subsystem with antenna and switchable amplifier
10/01/1998WO1998043415A1 Extracting data sections from a transmitted data stream
10/01/1998WO1998043400A2 Radio receiver
10/01/1998WO1998043397A1 Receiving circuit for transmission systems with copper cables
10/01/1998WO1998043385A1 Hybrid circuit
10/01/1998WO1998043384A1 Method and transmitter device for transmitting data symbols from user signals via a radio interface or a mobile communication system
10/01/1998WO1998043367A2 Spread spectrum communication using circular waveform shift-keying
10/01/1998WO1998043366A1 Dual band mobile station
10/01/1998WO1998043365A1 Wireless, portable, battery-operated device
10/01/1998WO1998043364A1 A multi-carrier radio system and radio transceiver implementation
10/01/1998WO1998043362A2 Method and apparatus for reducing spread-spectrum noise
10/01/1998WO1998043337A1 Charging of secondary cells using transmitted microwave energy
10/01/1998WO1998043248A1 Computer memory organization
10/01/1998WO1998043209A1 Device for influencing the operating status of an electronic appliance
10/01/1998WO1998043172A2 Access control system
10/01/1998WO1998043167A1 Computer memory organization
10/01/1998WO1998043165A1 Television or radio control system development
10/01/1998WO1998043162A1 Downloading a computer file from a transmitter via a receiver/decoder to a computer
10/01/1998WO1998031121A3 Communication bus system
10/01/1998WO1998028926A3 Access technique of channel hopping communications system
10/01/1998DE19712414A1 Satellite receiver with built-in loudspeaker
10/01/1998DE19711577A1 Drahtlos arbeitende tragbare batteriebetriebene Vorrichtung Wireless portable battery-powered device working
10/01/1998CA2284867A1 Access control system
10/01/1998CA2284147A1 Downloading a computer file from a transmitter via a receiver/decoder to a computer
10/01/1998CA2284146A1 Computer memory organization
10/01/1998CA2284145A1 Method of and apparatus for transmitting data for interactive tv applications
10/01/1998CA2284044A1 Computer memory organization
10/01/1998CA2284036A1 Method and apparatus for preventing fraudulent access in a conditional access system
10/01/1998CA2284022A1 Television or radio control system development
10/01/1998CA2284016A1 Signal generation and broadcasting
10/01/1998CA2284014A1 Smartcard for use with a receiver of encrypted broadcast signals, and receiver
10/01/1998CA2284011A1 Data processing system
10/01/1998CA2283848A1 Method and apparatus for reducing spread-spectrum noise
09/1998
09/30/1998EP0868041A2 Apparatus for receiving digital audio broadcast signals
09/30/1998EP0868035A2 Analog signal transmission circuit
09/30/1998EP0868032A2 Transmission/reception system and receiver
09/30/1998EP0868025A1 Radio receiver
09/30/1998EP0868024A1 Radio receiver and method for adjusting the tuning frequency used in the same
09/30/1998EP0868019A2 FM multiplex broadcasting receiver
09/30/1998EP0867867A2 Information encoding method and apparatus, information decoding method and apparatus and information recording medium
09/30/1998EP0867850A2 A communications terminal device, a communications system, and a storing medium for storing a program to control data processing by the communications terminal device
09/30/1998EP0867077A2 Re-orthogonalization of wideband cdma signals
09/30/1998EP0867076A1 Improvements relating to the processing of broadcasting signals
09/30/1998EP0867075A1 Interference detection circuit having amplitude frequency domain defined discrimination
09/30/1998EP0867051A1 Telescopic antenna for a mobile phone
09/30/1998EP0842440A4 Short range radio locator system
09/30/1998EP0700612A4 Method and apparatus for time division multiplexing the use of spreading codes in a communication system
09/30/1998CN2293157Y Diecasted shell of multifunctional theft-proof main intercom for buildings
09/30/1998CN2293156Y Radio-frequency solid-state power amplifier for frequency-modulated transmitter
09/30/1998CN1194738A 接收方法和接收机 The receiving method and receiver
09/30/1998CN1194737A Encoding apparatus for encoding a plurality of information signals
09/30/1998CN1194565A Base station selecting method, reference signal receiving method and user equipment
09/30/1998CN1194561A Modular communication device
09/30/1998CN1194559A Mobile communication device with distance measuring unit
09/30/1998CN1194557A Radio Telephone capable of operating on time slt paging mode and operating method
09/30/1998CN1194556A Device and method for detecting and reducing intermodulation distortion
09/30/1998CN1194555A Receiving loop of honey-comb type telephone
09/30/1998CN1194554A Multistage sectorial CDMA communication
09/30/1998CN1194525A Amplitude-modulation multi-way broadcasting device
09/30/1998CN1194519A Demodulation method and its device, receiving method and its device, and communication device
09/30/1998CN1194518A Channel ratio measurer and method in communication system and control method for transmitting power
09/30/1998CN1194508A Frequency-hopping signal direction finding and intercept receiving method based on first-order bandpass sampling
09/30/1998CN1194506A Multi-tone DPSK modem based on FFT
09/30/1998CN1194505A Radio receiving method and radio receiving apparatus
09/29/1998US5815821 Method and a device for conserving power in a battery powered transceiver
09/29/1998US5815820 Transmitter having adjustable power levels responsive to the position of a movable antenna
09/29/1998US5815819 Intermittent reception control apparatus
09/29/1998US5815818 Cellular mobile communication system wherein service area is reduced in response to control signal contamination
09/29/1998US5815812 Soft handoff system of spread spectrum communication
09/29/1998US5815811 Preemptive roaming in a cellular local area wireless network
09/29/1998US5815805 Apparatus and method for attenuating an undesired signal in a radio transceiver
09/29/1998US5815804 Dual-band filter network
09/29/1998US5815803 Wideband high isolation circulatior network
09/29/1998US5815801 Method for estimating the quality of a connection, and a receiver
09/29/1998US5815798 Apparatus and method of controlling transmitting power in a subscriber terminal of a wireless telecommunications system
09/29/1998US5815795 Oscillation detecting system for wireless repeater
09/29/1998US5815570 Communication device with card ejection mechanism
09/29/1998US5815541 Digital phase locked loop assembly
09/29/1998US5815539 Signal timing synchronizer
09/29/1998US5815529 Transmission system for digital audio broadcasting that incorporates a rotator in the transmitter
09/29/1998US5815526 Signal comprising binary spreading-code sequences
09/29/1998US5815525 Transmitter
09/29/1998US5815355 Modulation compensated clamp circuit
09/29/1998US5815219 For use with a controller for providing multiple command signals
09/29/1998US5815206 Method for partitioning hardware and firmware tasks in digital audio/video decoding
09/29/1998US5815170 Memory control method of character multiplexed broadcast receiver
09/29/1998US5815113 Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems
09/29/1998US5815108 System for extending infrared remote control
09/29/1998US5815082 Local communication bus system and apparatuses for use in such a system
09/29/1998US5815055 Matched filter with improved synchronous characteristics, and reception device and communication system using the same
09/29/1998US5815036 Apparatus and method for controlling feedforward amplifier
09/29/1998US5814969 Apparatus for selectively activating a plurality of devices
09/29/1998CA2143358C Receiver, automatic gain controller suitable for the receiver, control signal generator suitable for the automatic gain
09/29/1998CA2139259C Ds/cdma receiver using parallel-operating multi-purpose correlators
09/29/1998CA2127268C A miniature wireless communication device
09/29/1998CA2061033C Antennae
09/24/1998WO1998042170A1 Circular stripline package incorporating a low noise amplifier
09/24/1998WO1998042155A2 A method for combining signals, and a receiver
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