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)
12/2009
12/02/2009CN100566229C Wireless resource allocation of multi-carrier telecommunication system
12/02/2009CN100566224C Method and apparatus for pulse overlap pre-compensation in digitally modulated signals
12/02/2009CN100566222C Channel prediction device and method
12/02/2009CN100566221C Disturbing code and preamble generating device
12/02/2009CN100566211C Information notification method, mobile communications system, base station and mobile station
12/02/2009CN100566206C Method for producing combined signal
12/02/2009CN100566204C Radio communication apparatus, transmitter apparatus, receiver apparatus and radio communication system
12/02/2009CN100566203C Beam-steering and beam-forming for wideband MIMO/MISO systems
12/01/2009USRE41027 Systems and methods to compensate a frequency
12/01/2009US7627287 On-channel repeater
12/01/2009US7627067 Maximum likelihood synchronization for a communications system using a pilot symbol
12/01/2009US7627061 Communication breaking device and method thereof
12/01/2009US7627060 Receiver and method having envelope compensation signal
12/01/2009US7627059 Method of robust timing detection and carrier frequency offset estimation for OFDM systems
12/01/2009US7627058 Alternating quadratures differential binary phase shift keying modulation and demodulation method
12/01/2009US7627057 Quadrature alignment in communications receivers
12/01/2009US7627055 Error adjustment in direct conversion architectures
12/01/2009US7627054 Device and method for improving the signal to noise ratio by means of complementary sequences
12/01/2009US7627053 Apparatus and method for driving a pulse width modulation reference signal
12/01/2009US7627048 Communication of interference mitigation related information between wireless devices
12/01/2009US7627046 Waveform generation for improved peak-to-average amplitude ratio
12/01/2009US7627029 Margin test methods and circuits
12/01/2009US7627024 Multi-frequency data transmission channel power allocation
12/01/2009US7626920 Fixed OFDM wireless MAN utilizing CPE having internal antenna
12/01/2009US7626919 OFDM signal collision position detection apparatus and OFDM reception device
12/01/2009US7626918 Frequency offset differential pulse position modulation
12/01/2009US7626489 Power line communications device and method
11/2009
11/26/2009WO2009143060A1 Detection of time-domain sequences sent on a shared control channel
11/26/2009WO2009142815A2 Systems and methods for sending an acknowledgment message in a wireless communication system
11/26/2009WO2009142814A1 Buffered demod and demap functions
11/26/2009WO2009142683A1 Cube coordinate subspaces for nonlinear digital predistortion
11/26/2009WO2009142564A1 A method for link adaptation with a signal quality margin based on the bandwidth
11/26/2009WO2009142563A1 Method for moving quantization noise introduced in fixed-point calculation of fast fourier transforms
11/26/2009WO2009142557A1 Methods and an apparatus for estimating a residual frequency error in a communications system
11/26/2009WO2009142444A2 Method for transmitting data in wireless communication system
11/26/2009WO2009142437A2 Preamble transmission method in a multiple antenna system
11/26/2009WO2009142436A2 Method and apparatus for performing harq in a multiple antenna system
11/26/2009WO2009142407A2 Mimo detection method and system based on channel correlation
11/26/2009WO2009142027A1 Carrier recovery device and method, and demodulator
11/26/2009WO2009142025A1 Wireless communication mobile station device and distribution and placement method for resource elements
11/26/2009WO2009141790A2 Filter device for detecting and/or removing erroneous components in and/or from a signal
11/26/2009WO2009141763A1 Rfid transponder
11/26/2009WO2009141408A1 A method for estimating the position and the speed of a target with a radar emitting an ofdm waveform
11/26/2009WO2009140921A1 A framing method and a framing device of the common interleaved frame
11/26/2009WO2009140907A1 Method, apparatus and system for acknowledgement channel allocation in communication network
11/26/2009WO2009140890A1 A method, a system, and an apparatus for realizing symbol synchronization
11/26/2009WO2009114338A3 Method and apparatus for channel sounding in an orthogonal frequency division multiplexing communication system
11/26/2009WO2009113007A3 An efficient multi-band communication system
11/26/2009WO2009079441A3 I-q mismatch calibration and method
11/26/2009US20090291653 Radio Transmission Apparatus
11/26/2009US20090290665 Ofdm receiving method and apparatus
11/26/2009US20090290664 Receiver for wireless communication network with extended range
11/26/2009US20090290663 Coarse frequency offset estimation for digital multimedia broadcasting
11/26/2009US20090290662 Method for generating a reference signal sequence using grouping
11/26/2009US20090290661 Detection of time-domain sequences sent on a shared control channel
11/26/2009US20090290660 Pseudo Noise Coded Communication Systems
11/26/2009US20090290659 Channel stacking system and method of operation
11/26/2009US20090290658 Multi-Pulse Signal Generator Based on a Sawtooth Chirp
11/26/2009US20090290657 Continuous Beamforming for a MIMO-OFDM System
11/26/2009US20090290656 Multi-user mimo method, apparatus and communication system for transmitting signal
11/26/2009US20090290654 Apparatus for transmitting and receiving data to provide high-speed data communication and method thereof
11/26/2009US20090290652 Pilot Signal Set Management in a Multi-Carrier Communication System
11/26/2009US20090290631 Methods and apparatus for reducing modulation signal bandwidth in polar modulation transmitters
11/26/2009US20090290629 Time-Domain Equalizer
11/26/2009US20090290620 Systems and methods for implementing receiver transparent q-mode
11/26/2009US20090290618 Methods and systems for hybrid mimo schemes in ofdm/a systems
11/26/2009US20090290568 Radio communication apparatus and radio transmission method
11/26/2009US20090290519 Receiver for Audio Player
11/26/2009US20090290481 M-ary Orthogonal Keying System
11/26/2009US20090289826 Technique for improving modulation performance of translational loop rf transmitters
11/26/2009DE10059540B4 GPS-Empfänger der eine Suchfrequenzband-Umschaltfunktion aufweist Having GPS receiver, a search frequency band switching
11/26/2009DE10043160B4 Tonsignalerkennungsschaltung und Verfahren zur Erkennung von Tonsignalen Tonsignalerkennungsschaltung and method for detection of tone signals
11/26/2009CA2725524A1 A method for estimating the position and the speed of a target with a radar emitting an ofdm waveform
11/25/2009EP2124409A1 Apparatus and method for symbol timing in ofdm systems
11/25/2009EP2124408A2 Radio communication unit and method for calculating frequency shift
11/25/2009EP2124407A1 Signal processing method, signal processing device, radio reception device, and communication reception device
11/25/2009EP2124377A2 Framing structure for digital broadcasting and interactive services
11/25/2009EP2124367A1 Multi-carrier communication apparatus
11/25/2009EP2124366A1 Ofdm signal transmitter and ofdm signal receiver
11/25/2009EP2124356A1 Light reception device and light reception method
11/25/2009EP2124349A1 Wireless communication device
11/25/2009EP2124071A1 A method for estimating the position and the speed of a target with a radar emitting an OFDM waveform
11/25/2009EP2122962A1 Method for symbol synchronization of received digital signal and digital signal receiver using the same method
11/25/2009EP2122961A1 Robust control/delineation in serial streams
11/25/2009EP2122960A1 Apparatus and method for classifying modulations in multipath environments
11/25/2009EP2122959A1 Subcarrier spacing identification
11/25/2009EP2122958A1 Apparatus and method for pilot insertion and arrangement for hierarchical modulation in ofdm transmission system
11/25/2009EP2122956A1 Method of synchronizing multi-carrier systems and multi-carrier system
11/25/2009EP2122955A2 System and method for improved frequency estimation for high-speed communication
11/25/2009EP2122954A2 Method of generating low peak-to-average power ratio ( papr) binary preamble sequences for ofdm systems
11/25/2009EP2122953A1 Method of data transmission with iterative multi-user detection and apparatus using the same
11/25/2009EP2122951A1 Inter-carrier interference cancellation for ofdma systems
11/25/2009EP2122950A2 Systems and methods for enhanced channel estimation in wireless communication systems
11/25/2009EP2122890A2 Method for performing an adaptive modulation and coding scheme in mobile communication system
11/25/2009EP2122882A2 Acm aware encoding systems and methods
11/25/2009EP2122879A1 Systems and methods for generating sequences that are nearest to a set of sequences with minimum average cross-correlation
11/25/2009EP2122877A1 Pilot transmission in a wireless communication system
11/25/2009EP2122876A1 Method and apparatus for reducing probability of detection, improving jamming resistance and security for broadband wireless systems
11/25/2009EP2122872A1 Interoperability of digital broadband broadcasting and cellular communication systems
11/25/2009EP2122870A2 Hybrid subcarrier mapping method and system
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