| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 04/27/2000 | WO2000024117A1 Method and system for down-converting an electromagnetic signal |
| 04/27/2000 | WO2000024116A1 System and method for frequency up-conversion |
| 04/27/2000 | WO2000010272B1 Efficient spectral saving fqpsk and fqam signal transmission and reception systems |
| 04/27/2000 | WO2000005849A3 Determining sampling phase |
| 04/27/2000 | DE19849319A1 Middle modulation error display method for use in multi-signal carrier system, involves computing squarely weighted average value of amplitude of all ideal signaling status of modulated carrier |
| 04/27/2000 | DE19849318A1 Orthogonal frequency division multiplex processing method in multi antenna system, involves summing up I/Q values weighted with channel correction values |
| 04/26/2000 | EP0996263A1 Signal point arrangement dispersion calculation circuit |
| 04/26/2000 | EP0996261A2 Method and system for rapid synchronization of a point to multipoint communication system |
| 04/26/2000 | EP0996239A2 Automatic power control system for a code division multiple access (CDMA) communications system |
| 04/26/2000 | EP0995293A2 Dc offset compensation for zero if quadrature demodulator |
| 04/26/2000 | EP0995283A2 A method and apparatus for segmentation, reassembly and inverse multiplexing of packets and atm cells over satellite/wireless networks |
| 04/26/2000 | EP0995277A1 Method and apparatus for minimizing delay variance via time divided transmissions |
| 04/26/2000 | EP0995267A2 Multiple mode direct conversion receiver |
| 04/26/2000 | EP0855116A4 Burst mode preamble |
| 04/26/2000 | EP0651926B1 Transmitting and receiving apparatus and method including punctured convolutional encoding and decoding |
| 04/26/2000 | CN1251718A Symbol timing recovery network for carrierless amplitude phase (CAP) signal |
| 04/26/2000 | CN1251713A Code synchronization unit and method |
| 04/25/2000 | USRE36673 Viceband data set |
| 04/25/2000 | US6055284 Symbol timing recovery circuit in digital demodulator |
| 04/25/2000 | US6055282 Digitally sampled phase quantized FM detector for a communication receiver |
| 04/25/2000 | US6055281 Passband DQPSK detector for a digital communications receiver |
| 04/25/2000 | US6055280 High data rate digital demodulator and bit synchronizer |
| 04/25/2000 | US6055268 Multimode digital modem |
| 04/25/2000 | US6055231 Continuously adjusted-bandwidth discrete-time phase-locked loop |
| 04/25/2000 | US6055021 System and method for obtaining synchronization to a digital frame |
| 04/25/2000 | US6054883 High accuracy 90° phase shift circuit error detection |
| 04/22/2000 | CA2276919A1 Device for the homodyne reception of optically phase-keyed signals |
| 04/20/2000 | WO2000022791A1 Channel estimator with variable number of taps |
| 04/20/2000 | WO2000022752A1 Transmission apparatus and method of signal-point generation |
| 04/20/2000 | WO1999065180A3 Burst structure for multicarrier transmission, and synchronization of burst, symbols and frequency |
| 04/20/2000 | DE19949586A1 System for analyzing an offset QPSK modulation can estimate the initial phase of an offset modulated signal by using a ZF signal converter and a frequency error compensator. |
| 04/20/2000 | DE19946749A1 Decision feedback equalizer for reducing channel interference in input signals includes a multi-TAB coefficient equalizer, a signal computer to substract output signal feedback and an SLIC to detect output signal data. |
| 04/19/2000 | EP0994613A1 A spread-spectrum transmission system with filtered multi-carrier modulation |
| 04/19/2000 | EP0994612A1 Circuit for detecting the phase of received signal |
| 04/19/2000 | EP0994611A1 Absolute-phasing synchronization capturing circuit |
| 04/19/2000 | EP0994610A2 Driver for DSL |
| 04/19/2000 | EP0994609A1 Method for constructing a set of constellations to be used for transmitting data between a transmitter and a receiver |
| 04/19/2000 | EP0993740A2 A subscriber unit and method for use in a wireless communication system |
| 04/19/2000 | EP0993724A1 Method and apparatus for data transmission within a broad-band communication system |
| 04/19/2000 | EP0993709A1 Multicarrier demux/demod (mcdd) wireless network architecture |
| 04/19/2000 | EP0993703A1 Opposite polarization interference cancellation in satellite communication |
| 04/19/2000 | EP0953246B1 Method for multiplying the levels of coding |
| 04/19/2000 | EP0927493A4 Set top terminal for an interactive information distribution system |
| 04/19/2000 | CN1251228A Method and apparatus for forming address |
| 04/19/2000 | CN1251184A Modem operated in non-real-time condition, software implementation in general purpose computer |
| 04/19/2000 | CN1250993A Pilot frequency signal transmission technology, and digital communication system using said technology |
| 04/19/2000 | CN1250991A Digital broadcast receiver and receiving method |
| 04/18/2000 | US6052821 Trellis coded QAM using rate compatible, punctured, convolutional codes |
| 04/18/2000 | US6052701 Methods of performing interpolation using frequency shifting operations and filters |
| 04/18/2000 | US6052571 Tuner for PSK or PAM data applications |
| 04/18/2000 | US6052420 Adaptive multiple sub-band common-mode RFI suppression |
| 04/18/2000 | US6052418 Frequency error measuring apparatus and radio apparatus |
| 04/18/2000 | US6052410 Transmission apparatus, reception apparatus and communication apparatus as well as modem signal transmission and reception method |
| 04/18/2000 | US6052407 Apparatus and method for detection frequency hopping patterns embedded in radio frequency noise |
| 04/18/2000 | US6052037 Modulation method and apparatus |
| 04/18/2000 | CA2170239C Coded modulation with shaping gain |
| 04/16/2000 | CA2285164A1 A spread-spectrum transmission system with filtered multi-carrier modulation |
| 04/13/2000 | WO2000021261A1 Method and apparatus for demodulating and equalizing an am compatible digital audio broadcast signal |
| 04/13/2000 | WO2000021260A1 Encoding/decoding additional symbols in a communications system |
| 04/13/2000 | WO2000021228A1 Method for equalization of complementary carriers in an am compatible digital audio broadcast system |
| 04/13/2000 | WO2000021191A1 Method and apparatus for generating a linearly modulated signal using polar modulation |
| 04/13/2000 | DE19948386A1 Reproduction apparatus, for signal processing digital audio signals composed of one-bit data, uses a signal processing unit coupled to a low-pass filter to process a signal, based on the characteristic selected |
| 04/13/2000 | CA2345616A1 Method for equalization of complementary carriers in an am compatible digital audio broadcast system |
| 04/12/2000 | EP0993161A2 Multicarrier transmission of two data sets |
| 04/12/2000 | EP0993160A1 Carrier reproducing circuit |
| 04/12/2000 | EP0993159A2 Estimation of carrier frequency offset |
| 04/12/2000 | EP0993141A1 Capacity allocation for ADSL |
| 04/12/2000 | EP0993140A1 Reduction of the transmission delay for urgent data |
| 04/12/2000 | EP0993136A1 Transmitter |
| 04/12/2000 | EP0992141A1 Message transmission system with frequency dividing optical components for parallel processing of optical pulses |
| 04/12/2000 | EP0992109A2 Simplified receiver for frequency shift keyed signals |
| 04/12/2000 | EP0992108A2 If-receiver |
| 04/12/2000 | EP0991992A2 Passive data carrier having means for reducing the power consumption |
| 04/12/2000 | CN1250566A Method and apparatus for channel estimation in OFDM transmission system |
| 04/12/2000 | CN1250338A Method and apparatus for radio communication |
| 04/12/2000 | CN1250333A Apparatus and method for generating pilot beacon signal in base station of code division multiple access system |
| 04/12/2000 | CN1250319A Group transmission rate conversion system |
| 04/12/2000 | CN1250297A Equalizing method and apparatus in radio receiver |
| 04/12/2000 | CN1250295A Output symbol rate control in group transmission rate switching system |
| 04/12/2000 | CN1250293A Decoding device and method for compressed multiple-track audio bit element flow |
| 04/12/2000 | CN1250292A Four phase frequency shift keying receiver and method for determining its signals |
| 04/12/2000 | CN1250279A Multiple carrier transmitter circuit and telecommunication equipment |
| 04/12/2000 | CN1250278A Telecommunication system |
| 04/12/2000 | CN1250277A Digital audio frequency broadcasting receiver |
| 04/12/2000 | CN1250269A Channel estimating apparatus for digital telecommunication station |
| 04/12/2000 | CN1250262A Wide-band CDMA system binary phase-shift keying/orthogonal phase-shift keying modulator |
| 04/12/2000 | CN1250256A Destination relative code using for discreting multitone modulation |
| 04/12/2000 | CN1250251A Double-side band pilot technology using for distorted control system generated from reducing circuit |
| 04/12/2000 | CN1051428C Qam signal encoding/decoding system |
| 04/12/2000 | CN1051422C Equipment for and method of analog-to-digital conversion and digital-to-analog conversion of voice signal |
| 04/12/2000 | CN1051417C 无线电系统 Radio Systems |
| 04/12/2000 | CN1051416C A method and apparatus for determining signal usability |
| 04/11/2000 | US6049651 Communication system |
| 04/11/2000 | US6049614 Synchronized chaotic system and communication system using synchronized chaotic system |
| 04/11/2000 | US6049576 Kronecker product code acquisition system |
| 04/11/2000 | US6049575 Digital communications system comprising a receiver that includes a timing recovery device |
| 04/11/2000 | US6049572 Optimization of QAM constellation space for auxiliary I-Q signaling |
| 04/11/2000 | US6049551 Method and apparatus for dynamic allocation of transmission bandwidth resources and for transmission of multiple audio signals with a video signal |
| 04/11/2000 | US6049535 Code division multiple access (CDMA) communication system |
| 04/11/2000 | US6049292 Method for the transmission of information and base station for receiving of information |