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Class Information
Number: 375/130
Name: Pulse or digital communications > Spread spectrum
Description: Subject matter utilizing a data modulated signal which has its energy spread over a transmitted bandwidth which is much greater than the bandwidth or rate of information being sent.

Sub-classes under this class:

Class Number Class Name Patents
375/139 Chirp 101
375/140 Direct sequence 722
375/132 Frequency hopping 570
375/131 Hybrid form 125
375/138 Time hopping 133

Patents under this class:

Patent Number Title Of Patent Date Issued
8711983 Phase locking loop Apr. 29, 2014
8711898 Ultra-wideband communication system and method Apr. 29, 2014
8711827 Mobile terminal based on W-CDMA system having receive diversity function and system thereof Apr. 29, 2014
8711771 Scalable header extension Apr. 29, 2014
8705656 Transmission and reception apparatus and method Apr. 22, 2014
8705591 Global navigation receiver Apr. 22, 2014
8705589 Method for pulse-based ultra-broadband communication between at least one transmitting node and at least one receiving node Apr. 22, 2014
8705588 Systems and methods for using code space in spread-spectrum communications Apr. 22, 2014
8693602 Method and device for mono- and multi-antenna reception for Alamouti-type links Apr. 8, 2014
8687669 Automatic gain control and DC offset compensation Apr. 1, 2014
8681891 Selection of training sequences for multiple-in multiple-out transmissions Mar. 25, 2014
8681835 Multi-stage turbo equalization and interference cancellation receiver for wireless systems Mar. 25, 2014
8677437 Systems and methods for calculating the delay between media signals Mar. 18, 2014
8676128 Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication system Mar. 18, 2014
8666310 Relay and hierarchical transmission scheme Mar. 4, 2014
8666002 Receiver for compensating I/Q mismatch, compensation device, compensation module and compensation parameter calculating module Mar. 4, 2014
8665987 Space-time/space-frequency coding for multi-site and multi-beam transmission Mar. 4, 2014
8665926 Closed-loop transmission power control method, base station apparatus and terminal Mar. 4, 2014
8665925 Method and device for generating scrambling code Mar. 4, 2014
8665691 Frame and data pattern structure for multi-carrier systems Mar. 4, 2014
8660206 Method of generating pulse waveform Feb. 25, 2014
8660167 Device and method for distortion-robust decoding Feb. 25, 2014
8654817 Combining signals with a shuffled-hadamard function Feb. 18, 2014
8654814 Embedded meta-carrier with spread spectrum for periodic-burst carriers via overlaid carriers Feb. 18, 2014
8649463 Radio communication apparatus 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
8649416 Signal processing apparatus, information processing apparatus, signal processing method, data display method, and program Feb. 11, 2014
8644788 Signal receiver, portable computer and signal acquisition method used in satellite communication system Feb. 4, 2014
8644441 Clock generators and clock generation methods thereof Feb. 4, 2014
8644367 Antenna beam scan unit and wireless communication system using antenna beam scan unit Feb. 4, 2014
8644360 System and method for transmitting and receiving ultra wide band pulse or pulse sequence Feb. 4, 2014
8638888 Analog correlation technique for ultra low power receivers Jan. 28, 2014
8638774 Controlling timing of synchronization updates Jan. 28, 2014
8634504 Correlation calculating method, satellite signal capturing method, and correlation calculating circuit Jan. 21, 2014
8634446 Frequency level detecting method Jan. 21, 2014
8634445 Pulse modulation and demodulation in a multiband UWB communication system Jan. 21, 2014
8630375 Method and apparatus for received signal processing in a multi-stage receiver Jan. 14, 2014
8630330 Integrated circuit for controlling radio communication process Jan. 14, 2014
8630329 High-speed sampling and low-precision quantification pulse ultra-wideband wireless communication method Jan. 14, 2014
8625692 Transmission/reception apparatus and method for improving throughput in a multi-input multi-output communication system Jan. 7, 2014
8625654 Pulse generator of UWB system Jan. 7, 2014
8625653 Method for managing the operation of a wireless apparatus configured to exchange information with a millimeter-wave communication device, and corresponding apparatus Jan. 7, 2014
8625652 Collision-free group hopping in a wireless communication system Jan. 7, 2014
8625509 Method of transmitting signal in wireless communication system and apparatus thereof Jan. 7, 2014
8620394 Method and system for impulse radio wakeup Dec. 31, 2013
8619920 Two-dimensional code spreading for interleaved FDMA system Dec. 31, 2013
8619906 Look up table-based sum predistorter for power amplifification with concurrent dual band inputs Dec. 31, 2013
8619836 Correlation coprocessor Dec. 31, 2013
8612239 Apparatus and method for coding audio data based on input signal distribution characteristics of each channel Dec. 17, 2013
8611394 Reception device Dec. 17, 2013

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