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Class Information
Number: 370/515
Name: Multiplex communications > Communication techniques for information carried in plural channels > Combining or distributing information via time channels > Synchronizing > Using synchronization information contained in a frame > Unique synchronization word or unique bit sequence > Pseudo-random
Description: Subject matter in which a maximal or minimum length binary sequence is utilized for achieving synchronization.

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
6430170 Method and apparatus for generating random numbers from a communication signal Aug. 6, 2002
6421646 Probabilistic method and system for verifying synchronization words Jul. 16, 2002
6421371 Modulation sequence synchronization methods and apparatus employing partial sequence correlation Jul. 16, 2002
6404758 System and method for achieving slot synchronization in a wideband CDMA system in the presence of large initial frequency errors Jun. 11, 2002
6396866 Symmetric chirp communications acquisition method and apparatus May. 28, 2002
6385232 Synchronization detection device and its method May. 7, 2002
6385182 Mobile-station transmitter/receiver May. 7, 2002
6381264 Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system Apr. 30, 2002
6373862 Channel-aided, decision-directed delay-locked loop Apr. 16, 2002
6370156 Modulation/demodulation of a pilot carrier, means and method to perform the modulation/demodulation Apr. 9, 2002
6366554 Multi-carrier transmission systems Apr. 2, 2002
6363107 Preamble code structure and detection method and apparatus Mar. 26, 2002
6339601 Method of, and frame synchronizing device for, synchronizing systems having a digital interface Jan. 15, 2002
6330234 Method and apparatus for reducing current consumption Dec. 11, 2001
6320881 Method, architecture and circuit for locking a data transmission frame Nov. 20, 2001
6301288 Method of chip interleaving in direct sequence spread spectrum communications Oct. 9, 2001
6295303 Method and device of superimposing an additional information signal on a video signal and detecting said additional information from said video signal Sep. 25, 2001
6266349 Method and apparatus for detecting frame in data stream Jul. 24, 2001
6263011 Receiver for spread spectrum communication system capable of shortening acquisition time Jul. 17, 2001
6246714 Synchronization circuit with correlated signal in the direct spread spectrum telecommunication system Jun. 12, 2001
6236648 CDMA receiver May. 22, 2001
6215798 Multi-frame synchronization for parallel channel transmissions Apr. 10, 2001
6208618 Method and apparatus for replacing lost PSTN data in a packet network Mar. 27, 2001
6163533 Random access in a mobile telecommunications system Dec. 19, 2000
6157631 Method and system for generating and using synchronized and unsynchronized spread spectrum signals in a cellular communications system Dec. 5, 2000
6147982 System and method for synchronizing acquisition for a code modulated communication system Nov. 14, 2000
6108327 Orthogonal spread spectrum system Aug. 22, 2000
6101173 Adaptive reacquisition time in a slotted paging environment Aug. 8, 2000
6094443 Apparatus and method for detecting a prescribed pattern in a data stream by selectively skipping groups of nonrelevant data bytes Jul. 25, 2000
6091762 Method and apparatus for quick acquisition of pilot signals using bank switching method Jul. 18, 2000
6069884 Method of communication between a base station and a plurality of mobile unit communication apparatus, a base station, and mobile unit communication apparatus May. 30, 2000
6064691 Method and apparatus for acquisition of the strongest pilot signal May. 16, 2000
6061386 Method of chip interleaving in direct sequence spread spectrum communications May. 9, 2000
6028868 Apparatus and method of synchronizing a transmitter in a subscriber terminal of a wireless communications system Feb. 22, 2000
6021311 Method of, and system for, transmitting messages Feb. 1, 2000
6002710 Timing recovery for a pseudo-random noise sequence in a direct-sequence spread-spectrum communications system Dec. 14, 1999
6002709 Verification of PN synchronization in a direct-sequence spread-spectrum digital communications system Dec. 14, 1999
5995537 Synchronism acquisition method and apparatus for correlation demodulation Nov. 30, 1999
5995502 Cordless telephone system Nov. 30, 1999
5982810 Signal extraction circuit and correlator utilizing the circuit Nov. 9, 1999
5966373 Waveform and frame structure for a fixed wireless loop synchronous CDMA communications system Oct. 12, 1999
5946305 Cordless telephone system Aug. 31, 1999
5940433 Acquisition method and system of spreading code Aug. 17, 1999
5926471 CDMA communication method, CDMA transmitter and CMDA receiver Jul. 20, 1999
5923667 System and method for creating N-times bandwidth from N separate physical lines Jul. 13, 1999
5923668 Apparatus and method of establishing a downlink communication path in a wireless telecommunications system Jul. 13, 1999
5909447 Class of low cross correlation palindromic synchronization sequences for time tracking in synchronous multiple access communication systems Jun. 1, 1999
5901180 Frame synchronization in multicarrier transmission systems May. 4, 1999
5878034 Spacecraft TDMA communications system with synchronization by spread spectrum overlay channel Mar. 2, 1999
5862132 System and method for multiple access short message communications Jan. 19, 1999

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