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)
10/1994
10/18/1994	US5357065 Circuit unit for electronic instrument having key-pad arrangement
10/18/1994	US5356060 Structure of casing of radio pager and clip attachable thereto
10/18/1994	CA1332635C Cable television spread spectrum data transmission
10/13/1994	WO1994023542A1 Improved portable power source and rf tag utilizing same
10/13/1994	WO1994023510A1 Apparatus and method for transmitting information between dual redundant components utilizing four signal paths
10/13/1994	WO1994022531A1 Switch circuit and method therefor
10/13/1994	WO1994022295A1 Internal type individual identification apparatus for animals
10/13/1994	DE4314051A1 Interferometer direction finder
10/13/1994	CA2135799A1 Switch circuit and method therefor
10/12/1994	EP0619663A2 Packet data communication system
10/12/1994	EP0619662A2 Protocol for packet data communication system
10/12/1994	EP0619656A2 Time division multiplex transmitting/receiving system
10/12/1994	EP0619648A1 Circuit for the attenuation of a digital audio signal during short disturbances
10/12/1994	EP0619645A1 Circuit arrangement with a linearised and symmetrised response, oscillator using such a circuit arrangement and remote control transmitter using such an oscillator
10/12/1994	EP0619644A1 Sinusoidal oscillator with a low harmonic content and remote control transmitter using such an oscillator
10/12/1994	EP0619619A1 A coupling device
10/12/1994	EP0538277B1 Highly reliable optical data system
10/12/1994	EP0398973B1 Method and apparatus for electrical signal coding
10/12/1994	CN2179668Y Electromagnetic radiation protective cover for wireless telephone
10/12/1994	CN2179667Y Cardiac remote-detecting monitoring centre receiver
10/12/1994	CN1093511A Method of controlling signal lines among audio and/or video apparatus
10/12/1994	CN1093509A Radiation-proof antenna for honey-comb type moveable telephone
10/11/1994	US5355533 Method and circuit for radio frequency signal detection and interference suppression
10/11/1994	US5355532 Television tuner unit having shield housing
10/11/1994	US5355531 Squelch circuit for volume control of a radio transmitter and receiver
10/11/1994	US5355530 Receiver using receiving condition signal for correcting influence of the reception band width
10/11/1994	US5355527 Radio receiver with display memory and keys for displaying selecting, and storing station frequencies
10/11/1994	US5355525 Method for operating a hand-held transmitter for controlling vehicle functions
10/11/1994	US5355524 Integrated radio receiver/transmitter structure
10/11/1994	US5355523 Wireless transmission/reception system including transmitting terminal producing multiple frequency local oscillation signals and receiving terminal storing a local oscillation signal
10/11/1994	US5355522 Frequency selection method and apparatus
10/11/1994	US5355521 Method for contactless transmission of information using two carrier waves and an intermediate side band on the carrier waves
10/11/1994	US5355518 Receiver with constant battery saving duty cycle
10/11/1994	US5355513 Transponder with reply frequency derived from frequency of received interrogation signal
10/11/1994	US5355419 On-vehicle audio system reproducing bodily-sensible sounds
10/11/1994	US5355389 Reciprocal mode saw correlator method and apparatus
10/11/1994	US5355363 Voice transmission method and apparatus in duplex radio system
10/11/1994	US5355114 In a power line communications system
10/11/1994	US5355103 Fast settling, wide dynamic range vector modulator
10/11/1994	US5355091 Apparatus for real time interference signal rejection
10/11/1994	US5354216 Mounting system for electrical connectors
10/11/1994	CA2026441C Method for transmitting a signal
10/06/1994	DE4310256A1 Reception arrangement for reception with antenna diversity
10/05/1994	EP0618693A1 Sound field and tone control device for FM radio receiver using radio data signals
10/05/1994	EP0618686A2 Equalisation of DSSS signals degraded by multipath fading
10/05/1994	EP0618684A1 Time division duplex transceiver
10/05/1994	EP0618683A2 Changeover means for r.f. source
10/05/1994	EP0618635A2 Antenna duplexer and transmitting/receiving apparatus using the same
10/05/1994	EP0617865A1 Embedded signalling
10/05/1994	CN2178966Y Programmed broadcast device with automatic timing
10/05/1994	CN1093212A Interconnection of components
10/05/1994	CN1093211A An operations center for a television program packaging and delivery system
10/04/1994	US5353375 Digital audio signal coding method through allocation of quantization bits to sub-band samples split from the audio signal
10/04/1994	US5353341 Cordless telephone arranged for operation in a frequency hopping system
10/04/1994	US5353328 Data adapter for a radiotelephone
10/04/1994	US5353311 Radio transmitter
10/04/1994	US5353306 Tap-weight controller for adaptive matched filter receiver
10/04/1994	US5353304 Surface acoustic wave device, and demodulating apparatus and communication system using the surface acoustic wave device
10/04/1994	US5353303 Technique for increasing the data rate in a spread spectrum data link
10/04/1994	US5353301 Method and apparatus for combining multipath spread-spectrum signals
10/04/1994	US5353300 Communication method for an adaptive direct sequence CDMA communication system
10/04/1994	US5353200 Process transmitter with inner conductive cover for EMI shielding
10/04/1994	US5353017 Call selective receiver built in with vibrator
10/04/1994	US5353016 For controlling the operation of one or more devices
10/04/1994	US5352988 Automatic gain controller
10/04/1994	US5352885 Frequency converter for varying the frequency of a local signal over a wide band
10/04/1994	CA2027387C Technique for determining signal dispersion characteristics in communications systems
09/1994
09/29/1994	WO1994022243A1 Radio receiver for information dissemination using subcarrier
09/29/1994	WO1994022242A1 Infrared remote control device for a personal digital assistant
09/29/1994	WO1994022235A1 Radiation shielding apparatus for a radio transmitting device
09/29/1994	WO1994022234A1 Mobile communications equipment
09/29/1994	WO1994022233A1 Radio frequency radiation shield for hand-held radio phone
09/29/1994	WO1994022232A1 Radio receiver with digital signal processing
09/29/1994	WO1994022231A1 Radio receiver with digital signal processing
09/29/1994	WO1994022230A1 Circuit for deriving in a signal indicating interference in a received stereo multiplex signal
09/29/1994	WO1994022229A1 Circuit for deriving audio signal masking signals
09/29/1994	WO1994022228A1 Circuit for deriving a quality signal dependent on the quality of a received multiplex signal
09/29/1994	WO1994022227A1 Circuit for deriving a signal indicating interference in a received stereo multiplex signal
09/29/1994	WO1994022226A1 Circuit for deriving a signal dependent on the direction of change of the reception field intensity
09/29/1994	WO1994022219A1 Digital filter
09/29/1994	WO1994022112A1 Arrangement for a use billing system
09/29/1994	DE4309112A1 Method for reducing interference from electromagnetic noise signals in receiving devices and a device to carry out the method
09/29/1994	CA2158947A1 Infrared remote control device for a personal digital assistant
09/29/1994	CA2158481A1 Mobile communications equipment
09/29/1994	CA2148355A1 Radiation shielding apparatus for a radio transmitting device
09/28/1994	EP0617532A1 Calibration method for vector modulators
09/28/1994	EP0617531A1 Multiresolution transmission system
09/28/1994	EP0617520A2 Portable radio communication apparatus
09/28/1994	EP0617519A2 Circuit for deriving at least one quality indication of a received signal
09/28/1994	EP0617518A2 Variable length codeword packer
09/28/1994	EP0617297A2 Radar transponder
09/28/1994	EP0616749A1 Portable messaging and scheduling device with homebase station
09/28/1994	CN1092929A Method and apparatus of communication
09/28/1994	CN1092927A Internal type satellite broadcast tuner and community receiving system using same
09/28/1994	CN1092829A Methods for optimally controlling fiber processing machines
09/27/1994	US5351284 Antenna for a base unit of a cordless telephone system
09/27/1994	US5351283 Vehicle-mounted charging apparatus for portable telephone sets
09/27/1994	US5351272 Communications apparatus and method for transmitting and receiving multiple modulated signals over electrical lines
09/27/1994	US5351269 Overlaying spread spectrum CDMA personal communications system
09/27/1994	US5351096 Remote control circuit for video cassette tape recorder

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