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公开(公告)号：DE69835842T2
公开(公告)日：2007-01-04
申请号：DE69835842
申请日：1998-05-21
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FAITH M
Abstract: The present invention provides a cipher stream generator including first (L1) and second (L2) linear feedback shift registers, each having a clock input and an output, the cipher stream generator being characterized by: the outputs being combined to generate said cipher stream and the output of said second register (L2) being combined with a clock signal, the combined second register output and clock signal is inputted to the clock input of said first register (L1) and the clock signal being inputted into the clock input of said second register (L2).
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公开(公告)号：AU2003257532A1
公开(公告)日：2003-11-20
申请号：AU2003257532
申请日：2003-10-24
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FAITH M
IPC: H04B1/10 , H04B1/7097 , H04B1/7107 , H04B1/707
Abstract: An apparatus for code division multiple access (CDMA) wireless communication comprising a receiver configured to receive a CDMA signal that includes a desired traffic signal and a second signal, the desired traffic signal being spread with a desired traffic spreading code and the second signal being spread with a second spreading code; means for generating a second signal cancellation component including means for generating a second signal strength by despreading the CDMA signal based on the second spreading code; means for generating a second signal cancellation factor by selectively combining the second signal spreading code and the desired traffic spreading code; and means for combining the second signal strength and the second signal cancellation factor to generate the second signal cancellation component; means for generating a despread desired traffic signal by despreading the CDMA signal based on the desired traffic spreading code; and means for combining the despread desired traffic signal and the second signal cancellation component to cancel second signal noise from the despread desired traffic signal.
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公开(公告)号：CA2505751A1
公开(公告)日：2000-07-27
申请号：CA2505751
申请日：1999-12-07
Applicant: INTERDIGITAL TECH CORP
Inventor： DICK STEPHEN G , KAZAKEVICH LEONID , OZLUTURK FAITH M
Abstract: The present invention balances the amplitude and phase of a received QPSK signal that may have been corrupted during transmission. The system determines the amplitude of the I and Q symbols of a received signal, compares them, and applies a correction to one or both channels to correct for amplitude imbalance. For phase imbalance, the system calculates the cross-correlation of the I and Q symbols which should average to zero. A correction factor is derived from the cross- correlation and applied to both channels, returning the phase cross-correlation to zero. The output from the system is a signal corrected in both amplitude and phase.
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公开(公告)号：EA007355B1
公开(公告)日：2006-10-27
申请号：EA200501109
申请日：1999-01-27
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FAITH M
IPC: H04B1/10 , H04B1/7097 , H04B1/7107
Abstract: Системаотменынежелательногосигналатрафикадляприемникасвязиширокогоспектра, котораяобеспечиваетуменьшениевоздействиявносимогошума. Настоящееизобретениеэффективноотменяетглобальныйконтрольныйсигнали нежелательныеактивныесигналытрафикапереддекодированиемжелаемогосигналатрафикав приемнике. Предлагаемоеизобретениеуменьшаетчастотуошибокпобигам (ЧОБ), выдаваяувеличенноеотношениесигналак шуму.
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公开(公告)号：DE69634275D1
公开(公告)日：2005-03-03
申请号：DE69634275
申请日：1996-06-27
Applicant: INTERDIGITAL TECH CORP
Inventor： LOMP GARY , OZLUTURK FAITH M , SILVERBERG AVI
IPC: H03K3/84 , G06F13/374 , H03H17/02 , H03H17/06 , H04B1/707 , H04B1/7075 , H04B1/7077 , H04B1/708 , H04B1/7085 , H04B1/709 , H04B1/7093 , H04B1/711 , H04B1/7115 , H04B1/712 , H04B7/005 , H04B7/216 , H04B7/26 , H04B15/00 , H04B17/00 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/12 , H04J13/16 , H04K1/00 , H04L1/00 , H04L5/14 , H04L7/00 , H04L7/033 , H04L25/02 , H04L27/00 , H04L27/20 , H04L27/233 , H04L27/30 , H04N1/333 , H04W52/04 , H04W52/14 , H04W52/24
Abstract: The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502), the initial transmit power level of which is maintained, wherein the first station generates an automatic power control signal by comparing a measured noise power level in a communication channel and an estimated system transmit power level and the second station occasionally transmits a spread spectrum signal whilst in an inactive state and receives the automatic power control signal to adjust an initial transmit power level thereof.
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Patent Agency Ranking6.发明专利
公开(公告)号：HK1059344A1
公开(公告)日：2004-06-25
申请号：HK03107483
申请日：2003-10-15
Applicant: INTERDIGITAL TECH CORP
Inventor： ZEIRA ARIELA , OZLUTURK FAITH M , SHIN SUNG-HYUK
IPC: H04B1/04 , H04B7/005 , H04B7/216 , H04B7/26 , H04J3/00 , H04W52/06 , H04W52/08 , H04W52/10 , H04W52/12 , H04W52/18 , H04W52/20 , H04W52/22 , H04W52/24 , H04W52/50 , H04W52/54 , H04B
Abstract: Outer loop/weighted open loop power control controls transmission power levels in a spread spectrum time division duplex communication station. A first communication station (110) transmits a communication to a second communication station including target adjustment information generated at the first station on the basis of measured error rates of communications from the second station to the first station. The second station receives the communication and measures its received power level. Based on in part the received communication's power level and the communication's transmission power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the second station to the first station is based on in part weighting the path loss estimate in response to the estimate's quality and based on the receive target adjusted by the target adjustment information transmitted from the first station.
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公开(公告)号：ES2146569T1
公开(公告)日：2000-08-16
申请号：ES99122097
申请日：1996-06-27
Applicant: INTERDIGITAL TECH CORP
Inventor： LOMP GARY , OZLUTURK FAITH M , SILVERBERG AVI
IPC: H03K3/84 , G06F13/374 , H03H17/02 , H03H17/06 , H04B1/707 , H04B1/7075 , H04B1/7077 , H04B1/708 , H04B1/7085 , H04B1/709 , H04B1/7093 , H04B1/711 , H04B1/7115 , H04B1/712 , H04B7/005 , H04B7/216 , H04B7/26 , H04B15/00 , H04B17/00 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/12 , H04J13/16 , H04K1/00 , H04L1/00 , H04L5/14 , H04L7/00 , H04L7/033 , H04L25/02 , H04L27/00 , H04L27/20 , H04L27/233 , H04L27/30 , H04N1/333 , H04W52/04 , H04W52/14 , H04W52/24
Abstract: The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502), the initial transmit power level of which is maintained, wherein the first station generates an automatic power control signal by comparing a measured noise power level in a communication channel and an estimated system transmit power level and the second station occasionally transmits a spread spectrum signal whilst in an inactive state and receives the automatic power control signal to adjust an initial transmit power level thereof.
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公开(公告)号：AU2008243149A1
公开(公告)日：2008-11-27
申请号：AU2008243149
申请日：2008-11-06
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FAITH M
IPC: H04B1/10 , H04B1/7097 , H04B1/7107
Abstract: An apparatus for code division multiple access (CDMA) wireless communication comprising a receiver configured to receive a CDMA signal that includes a desired traffic signal and a second signal, the desired traffic signal being spread with a desired traffic spreading code and the second signal being spread with a second spreading code; means for generating a second signal cancellation component including means for generating a second signal strength by despreading the CDMA signal based on the second spreading code; means for generating a second signal cancellation factor by selectively combining the second signal spreading code and the desired traffic spreading code; and means for combining the second signal strength and the second signal cancellation factor to generate the second signal cancellation component; means for generating a despread desired traffic signal by despreading the CDMA signal based on the desired traffic spreading code; and means for combining the despread desired traffic signal and the second signal cancellation component to cancel second signal noise from the despread desired traffic signal.
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公开(公告)号：ES2271730T3
公开(公告)日：2007-04-16
申请号：ES04009133
申请日：1998-05-21
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FAITH M
Abstract: Un generador de corriente de cifra que incluye un primer (L1) y un segundo (L2) registros de desplazamiento con realimentación lineal, cada uno con una entrada y una salida de temporización, teniendo el generador de cifrado continuo salidas que se combinan con el fin de generar dicha corriente de cifra, caracterizándose dicho generador de cifrado continuo porque la salida de dicho segundo registro (L2) se combina con una señal de temporización, la salida del segundo registro y la señal de temporización, combinadas, se aplican a la entrada de temporización de dicho primer registro (L1) y la señal de temporización se aplica, directamente, a la entrada de temporización de dicho segundo registro (L2).
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公开(公告)号：AT339044T
公开(公告)日：2006-09-15
申请号：AT04009133
申请日：1998-05-21
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FAITH M
Abstract: The present invention provides a cipher stream generator including first (L1) and second (L2) linear feedback shift registers, each having a clock input and an output, the cipher stream generator being characterized by: the outputs being combined to generate said cipher stream and the output of said second register (L2) being combined with a clock signal, the combined second register output and clock signal is inputted to the clock input of said first register (L1) and the clock signal being inputted into the clock input of said second register (L2).
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