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1.
公开(公告)号:WO0173968A8
公开(公告)日:2001-11-29
申请号:PCT/US0109968
申请日:2001-03-28
Applicant: INTERDIGITAL TECH CORP
Inventor: KAEWELL JOHN D
IPC: H04B1/7073 , H04B1/62 , H04B1/7097 , H04L27/00 , H04B1/707
CPC classification number: H04L27/20 , H04B1/62 , H04B1/69 , H04B1/7097 , H04B1/711 , H04B2001/70724 , H04B2201/696 , H04B2201/709709 , H04L2027/0022
Abstract: A digital spread spectrum communication system calculates phase and frequency error (119) on a received signal from a communicating entity during a wireless communication and pre-corrects a signal for phase and frequency error prior to transmission to that entity. Moreover, a carrier offset correction (149) is performed, either at a chip, or at a symbol level.
Abstract translation: 数字扩频通信系统在无线通信期间计算来自通信实体的接收信号的相位和频率误差(119),并且在发送到该实体之前对相位和频率误差的信号进行预校正。 此外,以芯片或符号级别执行载波偏移校正(149)。
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2.
公开(公告)号:WO9509511A3
公开(公告)日:1995-05-18
申请号:PCT/US9408170
申请日:1994-07-21
Applicant: INTERDIGITAL TECH CORP
Inventor: COOLEY DAVID M , DIGIOVANNI JOSEPH J , KAEWELL JOHN D , KURTZ SCOTT D , LEMMO MARK A , REGENSBURG MICHAEL W , VESSAL DAVID , JOHNS ERIC
IPC: H04J3/00 , H04B1/16 , H04B7/24 , H04B7/26 , H04J3/06 , H04L5/26 , H04Q1/00 , H04W4/18 , H04W48/08 , H04W52/02 , H04W56/00 , H04W72/02 , H04W72/04 , H04W72/12 , H04W74/00 , H04W74/04 , H04W84/14 , H04W88/00 , H04W88/02 , H04W88/08 , H04W99/00 , H04Q7/20
CPC classification number: H04J3/0685 , H04B1/1615 , H04B7/2643 , H04B7/2656 , H04W48/08 , H04W52/0216 , H04W56/00 , H04W72/042 , H04W72/0446 , H04W72/10 , H04W74/0891 , H04W84/14 , H04W88/00 , H04W88/021 , H04W88/08 , Y02D70/00 , Y02D70/40 , Y02D70/449
Abstract: The present invention provides a method of minimizing synchronization delay in a radiotelephone system between a modular subscriber cluster communicating with a common base station, the modular subscriber cluster receiving repetitive time slots from the base station and having a plurality of frequency-agile modems, the method comprising the steps of: synchronizing a selected one of the modems to a selected time slot of the received time slots; generating a frame sync signal from said selected modem; and distributing said frame sync signal to remaining ones of the plurality of modems.
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公开(公告)号:ES2387708T3
公开(公告)日:2012-09-28
申请号:ES10179535
申请日:1998-03-04
Applicant: INTERDIGITAL TECH CORP
Inventor: KAEWELL JOHN D
Abstract: Metodo para usar en un receptor movil inalambrico, el metodo comprendiendo:la recepcion de una primera setial que tiene una pluralidad de canales de datos asociados con el receptorinalambrico movil, en el que cada uno de la pluralidad de canales de datos se asocia con una velocidad dedatos respectiva;la identificacion de una primera velocidad de datos asociada con un canal de datos de la primera pluralidadde canales de datos, yla decodificacion del primer canal de datos en base a la primera velocidad de datos idenfificada paraproducir la primera informacion.
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公开(公告)号:AT555552T
公开(公告)日:2012-05-15
申请号:AT07025032
申请日:1998-03-04
Applicant: INTERDIGITAL TECH CORP
Inventor: KAEWELL JOHN D
Abstract: A communication system where the data rate of a given transmission has been encoded by a transmitter and is then used to adjust a plurality of convolutional decoders sharing common memory. The system uses common processing resources to provide up to four discrete channels having multi-rate convolutional error correction decoding resulting in a reduced silicon area and low power operation. The system is capable of supporting data communication at 8 kbps up to 64 kbps for high rate ISDN communication in receivers of both base station and consumer unit locations.
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公开(公告)号:ES2345337T3
公开(公告)日:2010-09-21
申请号:ES05002616
申请日:2001-03-28
Applicant: INTERDIGITAL TECH CORP
Inventor: KAEWELL JOHN D
IPC: H04B1/7073 , H04B1/62 , H04B1/7097 , H04L27/00
Abstract: Método de reducción de errores de transmisión por un receptor de usuario móvil durante la transmisión de una señal de comunicación de espectro ensanchado digital, comprendiendo las etapas de: recepción de una señal de comunicación RF desde un segundo dispositivo de comunicación hacia dicho receptor de usuario móvil; análisis de dicha señal de recepción para detectar errores; generación de una señal de corrección basada en dicho análisis; y corrección de dicha señal de comunicación usando dicha señal de corrección antes de la transmisión de dicha señal de comunicación desde dicho receptor de usuario móvil hacia dicho segundo dispositivo de comunicación, comprendiendo: la filtración de dicha señal recibida para generar una señal filtrada usando una señal de ponderación; demodulación de dicha señal recibida para generar valores de trayecto relativos a cada componente multitrayecto en dicha señal recibida; y mezcla de dichos valores de trayecto con dicha señal de corrección para generar dicha señal de ponderación; y donde la etapa de análisis comprende: el desensanche de dicha señal filtrada usando una señal piloto: la realización de una decisión firme en dicha señal filtrada desensanchada para generar salidas de símbolos; y la determinación de los conjugados complejos de dichas salidas de símbolos para generar dicha señal de corrección; donde dicha señal de corrección elimina errores de fase relativos contenidos en los valores de trayecto.
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公开(公告)号:DE60132643T2
公开(公告)日:2009-01-08
申请号:DE60132643
申请日:2001-03-28
Applicant: INTERDIGITAL TECH CORP
Inventor: KAEWELL JOHN D
IPC: H04B1/7073 , H04B1/62 , H04B1/7097 , H04L27/00
Abstract: This Invention provides a method for reducing transmission errors by a user equipment (UE) when transmitting a communication signal, comprising the steps of: receiving an RF communication signal at said UE; analyzing said received signal for errors; generating a correction signal (119) based upon said analysis; and correcting said communication signal using said correction signal (119) prior to transmission of said communication signal from said UE.
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公开(公告)号:AU2005234744B2
公开(公告)日:2007-11-29
申请号:AU2005234744
申请日:2005-11-22
Applicant: INTERDIGITAL TECH CORP
Inventor: KAEWELL JOHN D
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公开(公告)号:FI20061051A
公开(公告)日:2006-11-30
申请号:FI20061051
申请日:2006-11-30
Applicant: INTERDIGITAL TECH CORP
Inventor: COOLEY DAVID M , KAEWELL JOHN D , LEMMO MARK A , VESSAL DAVID , DIGIOVANNI JOSEPH J , KURTZ SCOTT D , REGENSBURG MICHAEL W , JOHNS ERIC
IPC: H04B1/16 , H04J3/00 , H04B7/24 , H04B7/26 , H04J3/06 , H04L5/26 , H04Q1/00 , H04W4/18 , H04W48/08 , H04W52/02 , H04W56/00 , H04W72/02 , H04W72/04 , H04W72/12 , H04W74/00 , H04W74/04 , H04W84/14 , H04W88/00 , H04W88/02 , H04W88/08 , H04W99/00
Abstract: The present invention provides a method of minimizing synchronization delay in a radiotelephone system between a modular subscriber cluster communicating with a common base station, the modular subscriber cluster receiving repetitive time slots from the base station and having a plurality of frequency-agile modems, the method comprising the steps of: synchronizing a selected one of the modems to a selected time slot of the received time slots; generating a frame sync signal from said selected modem; and distributing said frame sync signal to remaining ones of the plurality of modems.
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公开(公告)号:RO120521B1
公开(公告)日:2006-02-28
申请号:RO200001267
申请日:1994-07-21
Applicant: INTERDIGITAL TECH CORP
Inventor: COOLEY DAVID M , DIGIOVANNI JOSEPH J , KAEWELL JOHN D , KURTZ SCOTT D , LEMMO MARK A , REGENSBURG MICHAEL W , VESSAL DAVID , JOHNS ERIC
IPC: H04J3/00 , H04B1/16 , H04B7/24 , H04B7/26 , H04J3/06 , H04L5/26 , H04Q1/00 , H04W4/18 , H04W48/08 , H04W52/02 , H04W56/00 , H04W72/02 , H04W72/04 , H04W72/12 , H04W74/00 , H04W74/04 , H04W84/14 , H04W88/00 , H04W88/02 , H04W88/08 , H04W99/00
Abstract: The invention relates to a method for minimizing the synchronization delay in a radiotelephone system between a subscriber cluster communicating with a base station , the subscriber cluster receiving repetitive time slots from the base station and having a plurality of modems, the method comprising the steps of : synchronizing a selected modem with a selected time slot of received time slots; generating a frame synchronization signal from said selected modem; and assigning said frame synchronization signal to remaining ones of the plurality of modems.
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公开(公告)号:FI113605B
公开(公告)日:2004-05-14
申请号:FI961444
申请日:1996-03-29
Applicant: INTERDIGITAL TECH CORP
Inventor: COOLEY DAVID M , KAEWELL JOHN D , LEMMO MARK A , VESSAL DAVID , DIGIOVANNI JOSEPH J , KURTZ SCOTT D , REGENSBURG MICHAEL W , JOHNS ERIC
IPC: H04B1/16 , H04B7/24 , H04B7/26 , H04J3/00 , H04J3/06 , H04L5/26 , H04Q1/00 , H04W4/18 , H04W48/08 , H04W52/02 , H04W56/00 , H04W72/02 , H04W72/04 , H04W72/12 , H04W74/00 , H04W74/04 , H04W84/14 , H04W88/00 , H04W88/02 , H04W88/08 , H04W99/00 , H04Q7/20
Abstract: The present invention provides a method of minimizing synchronization delay in a radiotelephone system between a modular subscriber cluster communicating with a common base station, the modular subscriber cluster receiving repetitive time slots from the base station and having a plurality of frequency-agile modems, the method comprising the steps of: synchronizing a selected one of the modems to a selected time slot of the received time slots; generating a frame sync signal from said selected modem; and distributing said frame sync signal to remaining ones of the plurality of modems.
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