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)
02/1995
02/23/1995DE4428314A1 RDS receiver with channel presetting function
02/23/1995DE4328061A1 Adapter for a radio device
02/22/1995EP0639933A2 Method and apparatus for processing an audio signal by surround modes
02/22/1995EP0639902A1 Distribution device for the signals from satellite for an antenna installation
02/22/1995EP0639899A1 Random access communication method by use of cdma, and system for mobile stations which use the method
02/22/1995EP0639895A2 Method and apparatus for controlling audio equipment
02/22/1995EP0639893A1 Negative feedback control circuit having a common line for input and output signals
02/22/1995EP0639890A1 Directional detector for power level control
02/22/1995EP0639314A1 Modular radio communications system
02/22/1995EP0639313A1 A method of increasing interference diversity in an fdma/tdma-based cellular system and cellular system
02/22/1995EP0639296A1 A folded lens antenna
02/22/1995CN2190381Y Device for taking movable telephone
02/22/1995CN2190380Y Wireless telephone
02/22/1995CN2190379Y Compressed receiver
02/22/1995CN1099205A Method for directly charging beeper, its connecting device and special charger
02/22/1995CN1099201A 高频放大器 High-frequency amplifier
02/21/1995US5392464 In a data transmission system
02/21/1995US5392463 Power amplifier capable of saturation and linear amplification
02/21/1995US5392462 Portable wireless telephone apparatus with use specific power monitoring
02/21/1995US5392461 Portable radio communication apparatus unnecessitating shielding case
02/21/1995US5392459 Power control in microwave transmission system increasing power of both horizontally and vertically polarized waves
02/21/1995US5392457 Battery saving method and apparatus for providing selective receiver power switching
02/21/1995US5392455 Transducer with integrated switch element
02/21/1995US5392330 Offset down conversion for a two-handset cordless telephone system
02/21/1995US5392300 Dual mode radio communication unit
02/21/1995US5392287 Apparatus and method for reducing power consumption in a mobile communications receiver
02/21/1995US5392003 Wide tuning range operational transconductance amplifiers
02/16/1995WO1995005038A1 Apparatus for automatically controlling gain, communication apparatus, and method for automatically controlling gain
02/16/1995WO1995005037A1 Receiver and repeater for spread spectrum communication
02/16/1995WO1995005036A1 Method and apparatus for reducing power consumption in digital communications devices
02/16/1995WO1995005029A1 Method and apparatus for controlling a peak envelope power of a pa
02/15/1995EP0639034A1 Method for initiating a call-forward process with help of a supporting device for a mobile radio station
02/15/1995EP0639030A2 Two-way CATV system and remote control system
02/15/1995EP0639010A1 Method for selecting multiple propagation paths on messages received in a CDMA radio communication system
02/15/1995EP0639009A1 Method and device for transmission in CDMA radio communications
02/15/1995EP0639008A1 Housing for ultrashort wave transceiver
02/15/1995EP0639007A1 A radio receiver
02/15/1995EP0638994A1 Transmitter and power amplifier therefor
02/15/1995EP0638955A1 Radio telephone with an antenna
02/15/1995EP0638872A1 An electronic indentification system with fast communication and a label for this system
02/15/1995EP0638030A1 Security systems
02/15/1995EP0510116A4 Method and apparatus for providing maximum rate modulation or compression encoding and decoding
02/15/1995EP0318478B1 Multiple resonator component-mountable filter
02/15/1995CN2189802Y Telecontrollor protecting cover
02/15/1995CN1098838A Clock apparatus for a compressed video signal
02/14/1995US5390363 Transmitter and receiver circuit and method therefor
02/14/1995US5390361 Method and a device for controlling a radio transmitter
02/14/1995US5390346 Small frequency step up or down converters using large frequency step synthesizers
02/14/1995US5390345 Method for preventing desensitization and radio interference of radio receivers
02/14/1995US5390344 FM audio signal receiver having a characteristic control function
02/14/1995US5390343 Method of tuning a radio receiver using RDS information
02/14/1995US5390341 System and method for muting and unmuting a communication device
02/14/1995US5390256 Dynamic loader
02/14/1995US5390207 Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators
02/14/1995US5390168 Radio frequency transmission circuit
02/14/1995US5390167 Code-division multiplex communication apparatus
02/14/1995US5389976 Audio video equipment including non-volatile memory means and methods for producing the same
02/14/1995US5389930 Power saving type multi-band microwave detector
02/14/1995US5389922 Compression using small dictionaries with applications to network packets
02/14/1995CA2129788A1 Method for transfering calls from a mobile station to another set and reloading device using said method
02/14/1995CA2046250C Hybrid circuit having a two-wire/four-wire converting function
02/09/1995WO1995004439A1 Apparatus and method for increasing data transmission rate over wireless communication systems using spectral shaping
02/09/1995WO1995004413A1 A method and apparatus for receiving and decoding communication signals in a cdma receiver
02/09/1995WO1995004408A1 Channel, power and pn-sequence assignment in a mobile dsss system
02/09/1995DE4337301C1 Supporting and retaining arrangement for a portable handheld radiocommunications device
02/09/1995DE4326097A1 Circuit arrangement for short-term muting of playback in a broadcast receiver
02/09/1995CA2168340A1 Channel, power and pn-sequence assignment in a mobile dsss system
02/09/1995CA2167798A1 Apparatus and method for increasing data transmission rate over wireless communication systems using spectral shaping
02/09/1995CA2167502A1 Dynamic radio communications system
02/08/1995EP0637882A1 Automatic frequency control arrangement
02/08/1995EP0637796A2 Data transmitting and receiving method and apparatus therefor
02/08/1995CN2189367Y Device for charging cells of transceiver
02/08/1995CN2189366Y Communication line protection arrangement with alarming device
02/08/1995CN1098578A Transmitting method, receiving method, and communication method for bi-directional bus system, and bi-directional bus system
02/08/1995CN1098577A Radio apparatus
02/08/1995CN1098576A Selective power supply control for battery saving effectively
02/08/1995CN1098575A Portable electronic apparatus comprising an electronic device and a frame having a battery
02/08/1995CN1098574A Communication apparatus utilizing high power amplifier
02/07/1995US5388209 Apparatus for high-speed recording compressed digital data with increased compression
02/07/1995US5388155 Cordless phone holder enabling hands free use
02/07/1995US5388126 Baseband signal processor for a microwave radio receiver
02/07/1995US5388125 Frequency converter circuit with improved intermediate frequency stability
02/07/1995US5388091 Communications system for communications between an electronic control apparatus and a test apparatus
02/07/1995US5387916 For a vehicle travelling along a highway
02/07/1995US5387906 Signal receiving control system of a remote control device
02/07/1995US5387902 For coupling a terminal to a local area network across data links
02/07/1995US5387900 EAS system with improved processing of antenna signals
02/07/1995US5387886 Duplex filter operating as a change-over switch
02/07/1995US5387873 Method of synchronizing two signals
02/07/1995US5387769 Local area network between an elevator system building controller, group controller and car controller, using redundant communication links
02/07/1995CA2127190A1 Apparatus and method for automatically controlling a reference frequency in a dual mode receiver
02/07/1995CA2127189A1 Apparatus and method for attenuating an undesired signal in a radio transceiver
02/07/1995CA2042163C Noise immunity in hdtv signals
02/07/1995CA2022128C Subscriber unit for wireless digital subscriber communication system
02/02/1995WO1995003642A1 A latching system
02/02/1995WO1995003549A1 Method and apparatus for controlling the exposure to rf transmissions
02/02/1995DE4425354A1 Digital radio link using direct sequence spread spectrum communication between fixed and mobile units
02/02/1995DE4292401C1 Device and method for forwarding digitised analog messages and digital data messages from a user interface to a processing section of a radiotelephone
02/02/1995CA2166984A1 Method and apparatus for controlling the exposure to rf transmissions
02/01/1995EP0637143A2 Decorrelator for CDMA base station transmitter