| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 09/16/1998 | CN1193441A Method for the common transmission of digital and analogue modulated radio broad casting and/or television broadcasting signals |
| 09/16/1998 | CN1193437A Receiver, demodulator and demodulation method therefor |
| 09/16/1998 | CN1193433A Communication channel monitoring method using parity check pit |
| 09/15/1998 | US5809133 DTMF detector system and method which performs frequency domain energy calculations with improved performance |
| 09/15/1998 | US5809096 Digital transmission system comprising decision means for changing the synchronization mode |
| 09/15/1998 | US5809088 Digital carrier wave restoring device and method for use in a television signal receiver |
| 09/15/1998 | US5809084 Data receiving in a digital mobile communication |
| 09/15/1998 | US5809083 Differentially encoded pilot word system and method for wireless transmissions of digital data |
| 09/15/1998 | US5809082 Vector trellis coded modulation using vector convolutional codes for reliable data transmission |
| 09/15/1998 | US5809075 High speed communications system for analog subscriber connections |
| 09/15/1998 | US5809074 Technique for improving the blind convergence of an adaptive equalizer using a transition algorithm |
| 09/15/1998 | US5809069 Frequency-domain carrierless AM-PM demodulator |
| 09/15/1998 | US5809065 Method and apparatus for improving the quality of AM compatible digital broadcast system signals in the presence of distortion |
| 09/15/1998 | US5809046 Method and a system for fast adjusting data receiving modem |
| 09/15/1998 | US5809043 Method and apparatus for decoding block codes |
| 09/15/1998 | US5809009 Demodulator apparatus for digital radio communication receiver providing pseudo-coherent quadrature demodulation based on periodic estimation of frequency offset |
| 09/15/1998 | US5808509 Receiver and demodulator for phase or frequency modulated signals |
| 09/15/1998 | CA2112151C Digital data demodulating apparatus |
| 09/15/1998 | CA2077227C Digital fsk transmitter receiver and method of operating same |
| 09/15/1998 | CA2071869C Carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters |
| 09/13/1998 | CA2230087A1 Device for suppressing stray direct component hops for zero intermediate frequency type radio receivers, and the corresponding suppression process |
| 09/11/1998 | WO1998039887A1 System and method for transmitting special marker symbols |
| 09/11/1998 | WO1998039886A2 Improvements in, or relating to synchronisation |
| 09/11/1998 | WO1998039885A2 Technique to phase lock a transceiving, transmitting, or receiving local oscillator to an incoming carrier signal |
| 09/11/1998 | WO1998039883A1 Signalling method using multiple modulus conversion and shell mapping |
| 09/11/1998 | WO1998039872A2 Improvements in, or relating to synchronisation |
| 09/11/1998 | WO1998039869A2 System and method for using circular constellations with uncoded modulation |
| 09/11/1998 | WO1998039854A1 Receiver with frequency offset correcting function |
| 09/11/1998 | WO1998032241A3 Circuit for two-wire / four-wire conversion |
| 09/11/1998 | WO1998024258A3 Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system |
| 09/11/1998 | CA2283411A1 System and method for using circular constellations with uncoded modulation |
| 09/11/1998 | CA2282261A1 System and method for transmitting special marker symbols |
| 09/11/1998 | CA2229182A1 Transmission/reception unit with bidirectional equalization |
| 09/10/1998 | DE19739979C1 Demodulation method for phase-modulated digital signal |
| 09/09/1998 | EP0863644A2 An FFT-based multitone DPSK modem |
| 09/09/1998 | EP0863643A2 Differential PSK signalling in CDMA networks |
| 09/09/1998 | EP0863622A2 Method and system providing unified DPSK-PSK signalling for cdma-based satellite communications |
| 09/09/1998 | EP0702866B1 Signaling packet for communication system with modulated reference according to a time-base law |
| 09/09/1998 | CN1192609A Re-sampling circuit and associated method |
| 09/08/1998 | US5805642 Method for detecting differently encoded signal sequences using a recursively computed reference signal |
| 09/08/1998 | US5805640 Method and apparatus for conditioning modulated signals for digital communications |
| 09/08/1998 | US5805583 Process for communicating multiple channels of digital data in distributed systems using synchronous code division multiple access |
| 09/08/1998 | US5805567 Orthogonal modulation scheme |
| 09/08/1998 | US5805242 Carrier independent timing recovery system for a vestigial sideband modulated signal |
| 09/08/1998 | US5805018 High-speed demodulating method of burst data and apparatus for same |
| 09/08/1998 | US5805017 Baseband demodulation of M-ary frequency shift keyed signals and a receiver therefor |
| 09/04/1998 | CA2213559A1 An fft-based multitone dpsk modem |
| 09/03/1998 | WO1998038807A2 Method and apparatus for analyzing a composite carrier signal |
| 09/03/1998 | WO1998038775A1 Modulator and modulation method |
| 09/03/1998 | WO1998038752A1 Mapper for high data rate signalling |
| 09/03/1998 | WO1998038750A1 Receiver apparatus, and associated method, for receiving a receive signal transmitted upon a channel susceptible to interference |
| 09/03/1998 | WO1998038730A1 Phase-shift keying electronic circuit with distributed structure |
| 09/03/1998 | CA2280005A1 Mapper for high data rate signalling |
| 09/02/1998 | EP0862300A2 Apparatus and method for transmission of high speed data over communication channels |
| 09/02/1998 | EP0862289A2 Method for testing the clocklines and a device for implementing this method |
| 09/02/1998 | EP0862263A2 Demodulator for amplitude-modulated carrier signal |
| 09/02/1998 | EP0861559A1 Multichannel radio frequency transmission system to deliver wide band digital data into independent sectorized service areas |
| 09/02/1998 | EP0861549A1 Method of synchronizing a digital signal receiver |
| 09/02/1998 | EP0771497B1 Multiple carrier transmission in common wave broadcasting networks |
| 09/02/1998 | CN1192304A Automatic power control system for a code division multiple access (CDMA) communication system |
| 09/01/1998 | US5802451 Non-linear compensation circuit for a power amplifier |
| 09/01/1998 | US5802241 Communication system |
| 09/01/1998 | US5802121 Synchronization device for digital communications |
| 09/01/1998 | US5802120 Reception circuit for a baseband processing and operation |
| 09/01/1998 | US5802117 Method and apparatus for joint frequency offset and timing estimation of a multicarrier modulation system |
| 09/01/1998 | US5802114 Method and apparatus for modulation differentiation |
| 09/01/1998 | US5802113 Clock signal recovery system for communication systems using quadrature amplitude modulation |
| 09/01/1998 | US5802112 Multi-level, multi-frequency interference pattern analog waveform encoding of digital data for transmission |
| 09/01/1998 | US5802111 Complex constellation point multiplier |
| 09/01/1998 | US5802105 Method and apparatus for testing a digital communication channel |
| 09/01/1998 | US5802104 Method and apparatus for vector modulation in a communication system |
| 09/01/1998 | US5802081 Digital information modulating apparatus |
| 09/01/1998 | US5802079 For use in a communications receiver |
| 09/01/1998 | US5801695 High speed communications system for analog subscriber connections |
| 09/01/1998 | US5801595 Device and method for digital vestigial sideband modulation |
| 09/01/1998 | CA2126928C Ringdown and ringback signalling for a computer-based multifunction personal communications system |
| 09/01/1998 | CA2100341C High speed data detection and clock recovery in a received multi-level data signal |
| 09/01/1998 | CA2090166C Multilevel coding using trellis-coded modulation and reed-solomon codes |
| 08/28/1998 | CA2221668A1 Demodulator for amplitude-modulated carrier signal |
| 08/27/1998 | WO1998037674A1 Non-uniformly spaced tones for synchronization waveform |
| 08/27/1998 | WO1998037650A2 Transmit/receive compensation in a discrete multitone spread spectrum system |
| 08/27/1998 | WO1998037649A2 Method and apparatus for detecting corrupt pilots in the reception of orthogonal frequency division multiplex (ofdm) signals |
| 08/27/1998 | WO1998019410A3 Single chip vlsi implementation of a digital receiver employing orthogonal frequency division multiplexing |
| 08/27/1998 | DE19707668A1 Method of testing of communication paths in digital communication networks |
| 08/26/1998 | WO1999043114A1 Method and apparatus for signal reception, and medium |
| 08/26/1998 | EP0860965A2 Dual bandwidth PLL for channel selection in satellite links |
| 08/26/1998 | EP0860964A2 Differential detector with error correcting function |
| 08/26/1998 | EP0860962A2 Adaptive equalizer |
| 08/26/1998 | EP0860072A1 Methods and apparatus for encoding and decoding data |
| 08/26/1998 | EP0860071A1 System and method for multiplexing a spread spectrum communication system |
| 08/26/1998 | CN1191647A Radio with peak power and bandwidth efficient modulation |
| 08/26/1998 | CN1191438A Digital satellite broadcasting receiver for changing PLL loop band-width during center controlling |
| 08/26/1998 | CA2228318A1 Method of testing clock paths and network elements for carrying out the method |
| 08/25/1998 | US5799242 Communication control unit for mobile communication systems and the like, including a channel quality detection unit, a quality decision unit and a control unit |
| 08/25/1998 | US5799047 Carrier synchronization unit and synchronization method |
| 08/25/1998 | US5799038 Method for measuring modulation parameters of digital quadrature-modulated signal |
| 08/25/1998 | US5799037 Signal processing apparatus |
| 08/25/1998 | US5799034 Frequency acquisition method for direct sequence spread spectrum systems |
| 08/25/1998 | US5799033 Method of error protected transmission, method of error protected reception of data and transmission system for transmission of data |
| 08/25/1998 | US5799010 Code division multiple access (CDMA) communication system |