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) |
---|
10/29/1997 | EP0803927A2 Attenuating filter for a DBS tuner for satellite broadcasting receivers |
10/29/1997 | EP0803150A1 Portable-phone case coupled especially to shoulder bags |
10/29/1997 | EP0803147A1 Transmitter comprising carrier suppression and dc offset reduction means |
10/29/1997 | EP0803097A1 Automatic cellular phone battery charging by mobile personal computer |
10/29/1997 | EP0748540A4 Frequency hopping medium access control protocol |
10/29/1997 | CN1163527A High frequency radio signal receiving device for digit communication |
10/29/1997 | CN1163518A Transmitting and receiving for radio signal |
10/29/1997 | CN1163516A Automatic gain control circuit for radio receiver |
10/29/1997 | CN1163514A Improved sampling system for radio frequency receiver |
10/29/1997 | CA2203715A1 Radio-frequency hearing aid protector for wireless communications products |
10/28/1997 | US5682605 Wireless communication system |
10/28/1997 | US5682463 Perceptual audio compression based on loudness uncertainty |
10/28/1997 | US5682461 Method of transmitting or storing digitalized, multi-channel audio signals |
10/28/1997 | US5682432 Broadcast receiver |
10/28/1997 | US5682431 FM stereo broadcasting apparatus and method |
10/28/1997 | US5682195 Digital cable headend for cable television delivery system |
10/28/1997 | US5682143 Radio frequency identification tag |
10/26/1997 | CA2174985A1 Wireless communication system |
10/23/1997 | WO1997039557A1 Pilot-symbol-assisted radiotelephone communications |
10/23/1997 | WO1997039550A2 Equalizer with a sequence estimation method with state reduction for a receiver in a digital transmission system |
10/23/1997 | WO1997039546A1 Multistage linear receiver for ds-cdma systems |
10/23/1997 | WO1997039543A2 Link delay calculation system for a radio repeater system |
10/23/1997 | WO1997039542A2 Simultaneous broadcast management system |
10/23/1997 | WO1997039541A1 Transmit control system using control tone signalling |
10/23/1997 | WO1997039540A1 Broadcasting system |
10/23/1997 | WO1997039537A1 System and method for reducing interference generated by a digital communication device |
10/23/1997 | WO1997039536A1 Equalizer with extended channel estimation for a receiver in a digital transmission system |
10/23/1997 | WO1997039535A2 Bandwidth management system for a remote repeater network |
10/23/1997 | WO1997039534A1 Portable communication device comprising an antenna, wherein a deliberate mismatch is introduced between the communication device and the antenna within a frequency band |
10/23/1997 | WO1997039527A1 Automatic frequency control with adjacent channel interference protection |
10/23/1997 | WO1997039493A1 Portable radio device |
10/23/1997 | DE19650093C1 Battery operated receiver with low standby current |
10/23/1997 | DE19615842A1 Verfahren zur Steuerung der Leistung eines Sendeverstärkers eines Funkgerätes Method for controlling the power of a transmission amplifier of a radio |
10/23/1997 | DE19615113A1 Wide band transmitter end stage for short wave range |
10/23/1997 | DE19614925A1 Mobile telephone for signal transmission to relay station |
10/23/1997 | CA2251830A1 System and method for reducing interference generated by a digital communication device |
10/23/1997 | CA2248637A1 Pilot-symbol-assisted radiotelephone communications |
10/22/1997 | EP0802696A1 Retransmission control method for cdma mobile communication |
10/22/1997 | EP0802660A2 Battery housing for portable telephones |
10/22/1997 | EP0802658A2 Mobile terminal having improved user interface |
10/22/1997 | EP0802638A2 Method and apparatus for controlling power in a forward link of a CDMA telecommunications system |
10/22/1997 | EP0802637A1 Communication device |
10/22/1997 | EP0801870A2 Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase time and energy |
10/22/1997 | EP0801857A1 Method for substituting bad speech frames in a digital communication system |
10/22/1997 | EP0801856A1 Spread-spectrum system and method |
10/22/1997 | EP0801852A1 Repeated decoding and encoding in subband encoder/decoders |
10/22/1997 | EP0801850A1 Cellular communications power control system |
10/22/1997 | EP0801849A1 A low voltage temperature and vcc compensated radio frequency mixer |
10/22/1997 | EP0801772A1 Device and method for adaptive narrowband interference suppresson in multiple-access communication |
10/22/1997 | EP0707763A4 Reduction of background noise for speech enhancement |
10/22/1997 | CN2265651Y Mobile telephone converter |
10/22/1997 | CN2265649Y E-TACS system mobile communication relay station |
10/22/1997 | CN2265637Y Calling device for public telephone |
10/22/1997 | CN2265636Y Multi-function global positioning system (GPS) receiver |
10/22/1997 | CN2265635Y Multi-function remote transmitter |
10/22/1997 | CN1163027A Dual-mode satellite/cellular phone with a frequency synthesizer |
10/22/1997 | CN1163025A Mobile radio-equipment plug connector |
10/22/1997 | CN1163024A Signal detection in a TDMA system |
10/22/1997 | CN1162880A Dual mode modulating device and method |
10/22/1997 | CN1162879A Satellite broadcast tuner capable |
10/22/1997 | CN1162878A Radio receiver |
10/22/1997 | CN1162876A Circuit arrangement for transmission of binary data by means of differential signals |
10/22/1997 | CN1162875A Current-controlled carrier tracking filter for improved spurious signal suppression |
10/22/1997 | CN1162868A Demodulator circuit using gyrator circuit |
10/21/1997 | US5680633 Modular, portable data processing terminal for use in a radio frequency communication network |
10/21/1997 | US5680469 Method of insertion of noise and apparatus thereof |
10/21/1997 | US5680459 Passive transponder |
10/21/1997 | US5680420 Device for producing a noise detector signal |
10/21/1997 | US5680414 Synchronization apparatus and method for spread spectrum receiver |
10/21/1997 | US5680389 Data transmission system |
10/21/1997 | US5680146 Local communication system and station for use in such a system |
10/21/1997 | US5680130 Method for encoding an input acoustical signal |
10/21/1997 | US5680077 Oscillator-transmitter with shared output circuit |
10/21/1997 | US5679943 Hand-held terminal with display screens, interactive screens, magnetic credit card readers, scanners, printers and handlers |
10/21/1997 | CA2070894C Portable radio communication apparatus not necessitating a shielding case |
10/16/1997 | WO1997038497A1 Process for encoding an audio signal digitalised at a low sampling frequency |
10/16/1997 | WO1997038496A1 Small rf transmitter with no external antenna |
10/16/1997 | WO1997038494A1 Encoding apparatus for encoding a plurality of information signals |
10/16/1997 | WO1997038493A1 Encoding of a plurality of information signals |
10/16/1997 | WO1997038489A1 Tuning system for achieving quick acquisition times for a digital satellite receiver |
10/16/1997 | DE19629773C1 Sound and video signal apparatus control system for various rooms of dwelling |
10/16/1997 | DE19614655A1 Automatic antenna matching device for short wave station |
10/16/1997 | DE19610455A1 Noise elimination method for radio receiver |
10/16/1997 | CA2731259A1 Recompression server |
10/16/1997 | CA2250990A1 Small rf transmitter with no external antenna |
10/15/1997 | EP0801470A1 Front panel security clamp |
10/15/1997 | EP0800737A1 Multiple access digital transmitter and receiver |
10/15/1997 | EP0800728A1 Transmitting and displaying on a receiver information describing broadcast programs |
10/15/1997 | CN2265035Y Radio monitor |
10/15/1997 | CN2265034Y Radio transmitting module |
10/15/1997 | CN1162377A Multiple band radio |
10/15/1997 | CN1162375A Differential feed-forward amplifier power control circuit of radio receiver system |
10/15/1997 | CN1162374A Method and apparatus for linear transmitter |
10/15/1997 | CN1162373A Quadrature modulator with integrated distributed RC filters |
10/15/1997 | CN1162223A Double-frequency-band receiver |
10/15/1997 | CN1162222A Local signal generator |
10/15/1997 | CN1162221A Direct-changing receiver with wave filter with cut-off frequency switchover device |
10/15/1997 | CN1162220A Honeycomb system for both dividing and controlling interference of adjacent channel and method thereof |
10/15/1997 | CN1162218A Device for controlling conversion gain of down converter |
10/15/1997 | CA2202687A1 Frequency synthesis in a radio communications transceiver |