| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 10/01/2003 | CN1446397A Calibration of quadrature receiver |
| 10/01/2003 | CN1446017A Improving of data secondary frequency synchronous in cellular mobile equipment |
| 10/01/2003 | CN1445996A Method for collecting data transmitted on transmission channel |
| 10/01/2003 | CN1445943A Receiving device, receiv-transmit device, receiving method, power amplifier error correcting circuit |
| 10/01/2003 | CN1445932A Feedforward DC bias canceller for direct conversion receiver |
| 10/01/2003 | CN1123185C Method for controlling bit rate of output block stream |
| 10/01/2003 | CN1123184C Frequency shift key (FSK) demodulator |
| 10/01/2003 | CN1123183C Testing device for GMSK communication device |
| 10/01/2003 | CN1123182C Higher order digital phase loop filter |
| 10/01/2003 | CN1123181C Modulation classification using RSSI |
| 10/01/2003 | CN1123179C Method and apparatus for transmission of variable rate digital data |
| 10/01/2003 | CN1123150C Process for frequency synchronisation of mobile station in mobile communication system |
| 10/01/2003 | CN1123140C Deivce and method for digital vestigial sideband modulation |
| 10/01/2003 | CN1123135C Integrable radio receiver circuit for frequency modulated digital signals |
| 10/01/2003 | CN1123134C Multiple-band communication receiver and method for receiving communication signal |
| 10/01/2003 | CN1123127C Coding and modulation method and apparatus for its implementation |
| 09/30/2003 | US6629121 Surface acoustic wave-matched filter and differential detector for demodulating spread spectrum signals |
| 09/30/2003 | US6628960 Multi-mode radio receiver |
| 09/30/2003 | US6628955 System and method for increasing the data rate for cellular digital packet data (CDPD) services |
| 09/30/2003 | US6628926 Method for automatic frequency control |
| 09/30/2003 | US6628762 Method for the transmission of a high-bit-rate digital signal |
| 09/30/2003 | US6628754 Method for rapid noise reduction from an asymmetric digital subscriber line modem |
| 09/30/2003 | US6628738 Method of arrangement to determine a clock timing error in a multi-carrier transmission system, and a related synchronization units |
| 09/30/2003 | US6628737 Signal synchronization using synchronization pattern extracted from signal |
| 09/30/2003 | US6628736 Estimating the optimal sampling instant in a TDMA packet transmission system |
| 09/30/2003 | US6628735 Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system |
| 09/30/2003 | US6628730 Demodulating digital video broadcast signals |
| 09/30/2003 | US6628728 Nyquist filter and method |
| 09/30/2003 | US6628727 Apparatus and method for performing π/4-DQPSK baseband modulation based on a signal mapping to be simplified |
| 09/30/2003 | US6628726 Device and method for generating a transmit sequence and device and method for determining an information word from a received transmit sequence |
| 09/30/2003 | US6628724 Process and system for information transfer |
| 09/30/2003 | US6628722 Decoding technique in discrete multi-tone (DMT) based communications systems |
| 09/30/2003 | US6628707 Adaptive equalizer system for short burst modems and link hopping radio networks |
| 09/30/2003 | US6628706 Method and apparatus for transforming a channel estimate |
| 09/30/2003 | US6628697 Subscriber unit ranging in a point to multipoint system |
| 09/30/2003 | US6628673 Scalable communication system using overlaid signals and multi-carrier frequency communication |
| 09/30/2003 | US6628638 Method and apparatus for receiving diversity signals for use in OFDM radio communication system |
| 09/30/2003 | US6628606 Coarse frequency offset estimator in orthogonal frequency division multiplexing receiver and method thereof |
| 09/30/2003 | US6628165 Power controllers for amplitude modulation |
| 09/25/2003 | WO2003079625A1 Methods and systems for digital data transmission |
| 09/25/2003 | WO2003079624A1 System and method of converting signals with phase-shift-keying (psk) modulation into signals with amplitude-shift-keying (ask) modulation |
| 09/25/2003 | WO2003079593A1 Method and apparatus for allocating a pilot carrier adaptively in an orthogonal frequency division multiple access system |
| 09/25/2003 | WO2003079564A1 Radio communication method and system |
| 09/25/2003 | WO2003079552A1 Method and apparatus for frequency offset estimation, and system utilizing same |
| 09/25/2003 | WO2003050991A3 System and method for improving data transmission |
| 09/25/2003 | WO2003036886A3 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers |
| 09/25/2003 | WO2003034646A3 Method and apparatus for channel quality measurements |
| 09/25/2003 | WO2003032535A3 Long distance optical transmission system for high dynamic range signals |
| 09/25/2003 | WO2003010914A3 Method and apparatus of avoiding zero crossings in quadrature modulation by adding an offset |
| 09/25/2003 | WO2002071729A3 System and method to reduce phase modulation bandwidth |
| 09/25/2003 | WO2002031988A3 Ultra wide bandwidth noise cancellation mechanism and method |
| 09/25/2003 | WO2002019552A3 Satellite receiver |
| 09/25/2003 | US20030182612 Receiving apparatus, transmitting and receiving apparatus, and receiving method |
| 09/25/2003 | US20030181187 Image-rejection I/Q demodulators |
| 09/25/2003 | US20030181183 Data aided frequency synchronisation in cellular mobile equipments |
| 09/25/2003 | US20030181174 Radio signal receiving apparatus and demodulating circuit |
| 09/25/2003 | US20030181173 Improving the Efficiency of Power Amplifiers in Devices Using Transmit Beamforming |
| 09/25/2003 | US20030181171 Apparatus and method for transmitting signal in mobile communication system |
| 09/25/2003 | US20030181165 Systems and methods for improving range for multicast wireless communication |
| 09/25/2003 | US20030179839 Method and apparatus for accurately detecting presence of a valid signal |
| 09/25/2003 | US20030179837 Direct conversion receiver |
| 09/25/2003 | US20030179836 Coherent adaptive calibration system and method |
| 09/25/2003 | US20030179834 Signal processor and method for the system-independent digital evaluation of mobile communications reception signals of various mobile phone standards |
| 09/25/2003 | US20030179833 Method and apparatus for reducing transmitter peak power requirements using dual matrices |
| 09/25/2003 | US20030179831 Power amplifier linearization |
| 09/25/2003 | US20030179828 Method for avoiding interference radiation of am transmitters used in digital transmission |
| 09/25/2003 | US20030179822 Device and method for checking whether a signal with a predetermined frequency is being received |
| 09/25/2003 | US20030179811 Method, transmitter and receiver for spread-spectrum digital communication by golay complementary sequence modulation |
| 09/25/2003 | US20030179776 Multicarrier transmitter, multicarrier receiver, and multicarrier wireless communication method |
| 09/25/2003 | US20030179118 Digital-analog-conversion circuit having function of automatic offset adjustment |
| 09/25/2003 | DE10157392C2 Empfänger mit Offsetkompensation Receiver with offset compensation |
| 09/24/2003 | EP1347611A1 Data aided frequency synchronisation |
| 09/24/2003 | EP1347610A2 Selection of a hybrid circuit |
| 09/24/2003 | EP1347593A1 Transmitter, receiver, and communication method |
| 09/24/2003 | EP1346563A2 System and method of synchronization recovery in the presence of pilot carrier phase rotation for an atsc-hdtv receiver |
| 09/24/2003 | EP1346504A1 Receiver for receiving data frames containing information and signaling data |
| 09/24/2003 | EP1346493A1 Method for performing link adaption using fuzzy control |
| 09/24/2003 | CN1444808A Radio communication terminal and demodulation method |
| 09/24/2003 | CN1444367A Mutual-complementing code demodulating system |
| 09/24/2003 | CN1444343A Method for transmitting analog data flow in data flow transmitter and its circuit |
| 09/24/2003 | CN1444338A Frequency modulator, frequency modulation method and radio line |
| 09/24/2003 | CN1122401C Method of operating channel equalizer in receiver for DTV signals subject to co channel NTSC interference |
| 09/24/2003 | CN1122381C Process and system for OFDM multi-carrier transmission of digital radio signal |
| 09/24/2003 | CN1122380C Method, apparatus and system for determing location of frequency synchronization signal |
| 09/24/2003 | CN1122367C Re-sampling circuit and modulator using the same and method for controlling said circuit |
| 09/23/2003 | US6625777 Method of identifying an improved configuration for a communication system using coding gain and an apparatus therefor |
| 09/23/2003 | US6625468 Digital portable telephone unit and method for playing back voice/sound in the same unit |
| 09/23/2003 | US6625424 Autocalibration of a transceiver through nulling of a DC-voltage in a receiver and injecting of DC-signals in a transmitter |
| 09/23/2003 | US6625239 Circuit for capturing frame sync signal in receiver |
| 09/23/2003 | US6625237 Null-pilot symbol assisted fast automatic frequency control (AFC) system for coherent demodulation of continuous phase modulation (CPM) signals and method for implementing same |
| 09/23/2003 | US6625233 Method and apparatus in a wireless receiver for demodulating a continuous-phase frequency-shift-keyed signal |
| 09/23/2003 | US6625231 Adaptive phase demodulation |
| 09/23/2003 | US6625230 Multi-frequency superposition receiver method |
| 09/23/2003 | US6625225 Trellis decoder and associated method |
| 09/23/2003 | US6625219 Method and apparatus for encoding/framing for modulated signals over impulsive channels |
| 09/23/2003 | US6625208 Modem using batch processing of signal samples |
| 09/23/2003 | US6625174 Method for transmitting data packets on carrier frequency with linear variation and transmitter implementing this method |
| 09/23/2003 | US6625113 Digital signal frame and interleaver synchronizer |
| 09/23/2003 | US6625112 Synchronization |
| 09/23/2003 | US6625111 OFDM communication apparatus |