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Class Information
Number: 375/145
Name: Pulse or digital communications > Spread spectrum > Direct sequence > End-to-end transmission system > Having specific signaling for code synchronization
Description: Subject matter in which methods, involving the transmission of specific types of patterns or waveforms, are used to insure that proper spreading sequence timing is used at the receiver.

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8705656 Transmission and reception apparatus and method Apr. 22, 2014
8693524 Synchronization method for impulse system ultra-wideband Apr. 8, 2014
8681834 Wireless communications system with secondary synchronization code based on values in primary synchronization code Mar. 25, 2014
8654817 Combining signals with a shuffled-hadamard function Feb. 18, 2014
8649416 Signal processing apparatus, information processing apparatus, signal processing method, data display method, and program Feb. 11, 2014
8649454 Receiving apparatus that receives packet signal in which a known signal is placed in the beginning of packet signal Feb. 11, 2014
8644363 Apparatus and method for estimating channel in MIMO system based OFDM/OFDMA Feb. 4, 2014
8634504 Correlation calculating method, satellite signal capturing method, and correlation calculating circuit Jan. 21, 2014
8620226 Enhanced wideband transceiver Dec. 31, 2013
8615032 Process for sub-microsecond time transfer using weak GPS/GNSS signals Dec. 24, 2013
8615058 Signal acquisition system Dec. 24, 2013
RE44634 Ultra-wideband receiver and transmitter Dec. 10, 2013
8594152 Pilot scrambling enabling direct pilot sequence detection in initial acquisition in Evolved UTRA Nov. 26, 2013
8588270 Architecture for ultra-wideband radio Nov. 19, 2013
8583042 Channel randomization for backoff efficiency improvement Nov. 12, 2013
8576754 TDD base station for code group synchronization Nov. 5, 2013
8571553 Methods and apparatus for resolving pilot pseudorandom noise code conflicts in a communication system Oct. 29, 2013
8565288 Apparatus and method for performing delay-locked loop operation on receiving signal Oct. 22, 2013
8542783 Method for unifying secondary synchronization signal detection and frame timing synchronization Sep. 24, 2013
8537878 Spread-spectrum codes generation Sep. 17, 2013
8514909 Noise and channel estimation using low spreading factors Aug. 20, 2013
8514985 Synchronising a receiver to a signal having known structure Aug. 20, 2013
8509344 Radio transmission device and radio communication method Aug. 13, 2013
8503594 Phase tracking in communications systems Aug. 6, 2013
8503578 Time delay measurement Aug. 6, 2013
8488539 Method of generating preamble sequence Jul. 16, 2013
8488693 Wireless communication systems and methods using reference signals Jul. 16, 2013
8489033 Enhanced wideband transceiver Jul. 16, 2013
RE44335 System and method for providing terrestrial digital broadcasting service using single frequency network Jul. 2, 2013
8477937 Methods and systems for providing interference based physical-layer encryption Jul. 2, 2013
8477826 Wireless communication system Jul. 2, 2013
8472423 Physical layer structures and initial access schemes in an unsynchronized communication network Jun. 25, 2013
8472502 Transmitting and receiving schemes for multiuser single-carrier space time spreading with frequency domain equalization Jun. 25, 2013
8467432 Radio communication device and response signal diffusion method Jun. 18, 2013
8467431 Human body communication system and communication method thereof Jun. 18, 2013
8457095 Method for bandwidth recovery of communication system Jun. 4, 2013
8446931 Chip timing synchronization for link that transitions between clear and spread modes May. 21, 2013
8437698 Method and apparatus for estimating time of arrival May. 7, 2013
8428108 Signal processing apparatus, information processing apparatus, signal processing method, data display method, and program Apr. 23, 2013
8406277 Signal processor and signal processing method Mar. 26, 2013
8406702 Clock signal generating arrangement for a communication device Mar. 26, 2013
8400949 Limited system information decoding for automatic neighbor relations in mobile networks Mar. 19, 2013
8401055 Communications methods and apparatus Mar. 19, 2013
8396097 IIR sliding window integrator and search engine delay component for reducing the preamble size of a discovery burst Mar. 12, 2013
8391341 Process for sub-microsecond time transfer using weak GPS/GNSS signals Mar. 5, 2013
8385296 Multi-carrier CDMA transmitting device and method using block-based multi-carrier spreading Feb. 26, 2013
8385470 Coding a signal with a shuffled-Hadamard function Feb. 26, 2013
8379690 Wireless receiver, wireless communication system, and wireless communication method Feb. 19, 2013
8380420 Drive control device for vehicle Feb. 19, 2013
8374350 Quantum communication system Feb. 12, 2013

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