Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 27 - Modulated-carrier systems
Patents for H04L 27 - Modulated-carrier systems (89,721)
03/2012
03/20/2012US8139690 Method and transmitter structure reducing ambiguity by repetition rearrangement in the bit domain
03/20/2012US8139687 Method to track a target frequency of an input signal
03/20/2012US8139686 Radio communication method, radio transmitting apparatus, and radio receiving apparatus
03/20/2012US8139685 Systems, methods, and apparatus for frequency control
03/20/2012US8139681 Frequency error correction by using remodulation
03/20/2012US8139680 Signal acquisition methods and apparatus in wireless communication systems
03/20/2012US8139679 System and method for controlling modulation
03/20/2012US8139678 High data rate closed loop MIMO scheme combining transmit diversity and data multiplexing
03/20/2012US8139677 Method for selecting constellation rotation angles for quasi-orthogonal space-time and space-frequency block coding
03/20/2012US8139676 Wireless communication unit, linearised transmitter circuit and method of linearising therein
03/20/2012US8139675 Multi-tone system with oversampled precoders
03/20/2012US8139674 Spaceflight high data rate radiation hard Ka-band modulator
03/20/2012US8139673 Transmission method of wireless signal and transmitter using the same
03/20/2012US8139672 Method and apparatus for pilot communication in a multi-antenna wireless communication system
03/20/2012US8139667 Method and apparatus for estimating frequency offset and timing offset of one or more mobile stations
03/20/2012US8139666 Channel estimation technique for multi-carrier system
03/20/2012US8139665 Wireless communication system with multiple transmission antennas using pilot subcarrier allocation
03/20/2012US8139663 Method for improving synchronization and information transmission in a communication system
03/20/2012US8139659 Multiple transmit antenna interleaver design
03/20/2012US8139658 Method and system for providing a time equalizer for multiline transmission in communication systems
03/20/2012US8139657 VUTP hybrid command management authority
03/20/2012US8139656 Method and system for linear processing of an input using Gaussian belief propagation
03/20/2012US8139655 System and method for effectively transferring electronic information
03/20/2012US8139654 Device and methods for biphasic pulse signal coding
03/20/2012US8139653 Multi-channel galvanic isolator utilizing a single transmission channel
03/20/2012US8139624 System and method for providing multiple ad hoc communication networks on a hardware channel
03/20/2012US8139546 System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system
03/20/2012US8139532 Error control method, medium access control (MAC) frame designing method, and terminal registration method in wireless communication system, and recording medium
03/20/2012US8139471 Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system
03/20/2012US8139442 Robust underwater communication system
03/20/2012US8138824 Recursive demodulation apparatus and method
03/20/2012CA2628861C Method for using flexible bandwidth in ofdma-based cognitive radio system, base station and subscriber station using the same
03/20/2012CA2537616C Apparatus and method for transmitting/receiving an uplink pilot signal in a communication system using an orthogonal frequency division multiple access scheme
03/20/2012CA2512670C Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data
03/17/2012CA2752650A1 Frequency offset estimator for upstream cable signals
03/15/2012WO2012034074A2 16-qam optical signal generation
03/15/2012WO2012033929A1 Sounding feedback schemes for very high throughput wireless systems
03/15/2012WO2012033701A1 Frequency-dependent i/q-signal imbalance correction for coherent optical transceivers
03/15/2012WO2012033663A1 Techniques for transmitting control channel information
03/15/2012WO2012033366A2 Method and device of transmitting a plurality of reception confirmation information
03/15/2012WO2012033335A2 Method and device of transmitting control information in a wireless communication system
03/15/2012WO2012033182A1 Transmitter, control method, computer program, and δσ modulator
03/15/2012WO2012032659A1 Wireless communication device and wireless communication device control method
03/15/2012WO2012032473A1 Dynamic autonomous resource allocation and channel access in cellular system uplink
03/15/2012WO2012031855A1 Papr reduction using clipping function depending on the peak value and the peak width
03/15/2012WO2012031657A1 Apparatus and method for data transmission and power transmission via a line
03/15/2012WO2012031494A1 Apparatus and method for generating pilot frequency sequences
03/15/2012WO2012031384A1 Method for demodulating dcm signals and apparatus thereof
03/15/2012WO2012011773A3 Method and device for transmitting control information in wireless communication system
03/15/2012WO2011152659A3 Method for transmitting control information in wireless communication system, and apparatus for same
03/15/2012US20120063551 Digital frequency locked delay line
03/15/2012US20120063550 Receiver with Orthogonal Beam Forming Technique
03/15/2012US20120063548 Digital receiver and method
03/15/2012US20120063547 Receiver and method for determining a time measure depending on a time of arrival of a pulse signal
03/15/2012US20120063546 Phase-locked loop circuit
03/15/2012US20120063545 Method and System for Enhancing Efficiency by Modulating Power Amplifier Gain
03/15/2012US20120063542 Novel Wide Null FOrming System with Beamforming
03/15/2012US20120063541 Method and device for determining estimated values for transmitted symbols in a mimo-ofdm system
03/15/2012US20120063540 Ofdm signal transmission method and apparatus
03/15/2012US20120063539 Lane-to-lane skew reduction in multi-channel, high-speed, transceiver circuitry
03/15/2012US20120063538 Method for Transmitting an Information Sequence
03/15/2012US20120063537 Turbo coding having combined turbo de-padding and rate matching de-padding
03/15/2012US20120063536 Method and Device for Processing a Digital Complex Modulated Signal Within a Polar Modular Transmission Chain
03/15/2012US20120063535 Transmitting apparatus and receiving apparatus
03/15/2012US20120063534 Signal transmission system with clock signal generator configured for generating clock signal having stepwise/smooth frequency transition and related signal transmission method thereof
03/15/2012US20120063533 Encoding and decoding using constrained interleaving
03/15/2012US20120063531 Dynamic digital communication system control
03/15/2012US20120063528 System and method for power control in mimo systems
03/15/2012US20120063527 Receiver, Channel State Information Compressing Method, and Computer Program
03/15/2012US20120063526 Method and apparatus for transmitting data, and communication system
03/15/2012US20120063525 Array antenna arrangement
03/15/2012US20120063523 Communication system, information transmission method, code setting method, base station, and mobile station
03/15/2012US20120063522 Method for directional digital data transmission between an aircraft and a ground station
03/15/2012US20120063521 Fractional-n phase locked loop, operation method thereof, and devices having the same
03/15/2012US20120063520 Semiconductor integrated circuit, radio communication device and time to digital converter
03/15/2012US20120063519 Receiver with feedback continuous-time delta-sigma modulator with current-mode input
03/15/2012US20120063505 Power transmitter and wireless power transmission system
03/15/2012US20120063502 Digital broadcast transmitter, digital broadcast receiver, and methods for configuring and processing streams thereof
03/15/2012US20120063385 Method, apparatus and system for pushing information, and method and apparatus for obtaining information
03/15/2012US20120063293 Using a single fht to decode access-based handoff probes from multiple users
03/15/2012US20120062369 Wireless communication system, wireless communication method, radio equipment, and data transmitter
03/15/2012US20120062330 Radio frequency integrated circuit for enhanced transmit/receive performance in low power applications and method of making the same
03/15/2012CA2810235A1 Sounding feedback schemes for very high throughput wireless systems
03/14/2012EP2429141A1 PAPR Reduction Using Clipping Function Depending on the Peak Value and the Peak Width
03/14/2012EP2429140A1 Single frequency multicast broadcasting network subframe, method and device for sending user data channel
03/14/2012EP2429139A2 Signal receiving apparatus, signal receiving method and signal receiving program
03/14/2012EP2429112A1 Frame structure for MIMO communication system
03/14/2012EP2429091A2 Signal acquisition in a wireless communication system
03/14/2012EP2429088A1 Communication terminal, method for controlling same, and program
03/14/2012EP2428012A1 Peak-to-average power ratio reduction in a multicarrier signal
03/14/2012EP2428011A1 Demodulator and system for transmitting modulated information, in particular for radiofrequency identification tags
03/14/2012EP2428009A2 Method and device for determining estimated values for transmitted symbols in a mimo-ofdm system
03/14/2012EP2269355B1 Apparatus and methods for tile and assignment processing
03/14/2012EP2039102B1 Methods for receiving and transmitting a multicarrier signal comprising a preamble containing data elements, corresponding devices and computer program products
03/14/2012EP1878184B1 Power control system for a continuous time mobile transmitter
03/14/2012EP1733480B1 Periodic calibration for communication channels by drift tracking
03/14/2012EP1665705B1 Channel estimation feedback in an orthogonal frequency division multiplexing system or the like
03/14/2012EP1464111B1 Multiple analog and digital downconversion
03/14/2012CN202168098U 一种调频信号载波的高精度恢复装置 One kind of high-precision frequency modulated signal carrier recovery device
03/14/2012CN1829124B Method and apparatus for demodulation of optical differential phase shift keyed signals
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