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公开(公告)号：NO20050918L
公开(公告)日：2005-02-21
申请号：NO20050918
申请日：2005-02-21
Applicant: INTERDIGITAL TECH CORP
Inventor： GUCCIONE LOUIS J , TYRA FRYDERYK
Abstract: A received power of a code division multiple access (CDMA) signal is determined. Samples of a spectrum associated with the received CDMA signal are taken as received samples, which are then correlated with a code of the CDMA signal. For correlated samples below a first threshold, those correlated samples are processed by being made to be zero. For samples between the first threshold and a second threshold, those correlated samples are processed by rescaling. The correlated samples above the second threshold are passed unchanged. The received power level of the received CDMA signal is determined using the correlated samples after the processing.
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公开(公告)号：NO20071487A
公开(公告)日：2007-05-25
申请号：NO20071487
申请日：2007-03-21
Applicant: INTERDIGITAL TECH CORP
Inventor： HAIM JOHN W , KLAHN GERARD , TYRA FRYDERYK , HAQUE TANBIR , AYCIN ERICA ELLYN
IPC: H04B1/26
CPC classification number: H04B1/1036 , H04B1/0003 , H04B17/336 , H04B17/382
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公开(公告)号：ES2274283T3
公开(公告)日：2007-05-16
申请号：ES03772088
申请日：2003-07-29
Applicant: INTERDIGITAL TECH CORP
Inventor： TYRA FRYDERYK , GUCCIONE LOUIS J
Abstract: Un aparato (100, 130) para medir la potencia de una señal de acceso múltiple de división de código (CDMA) recibida, que comprende: un dispositivo de medición de nivel de ruido (106, 134) para medir el nivel de ruido de la señal recibida; un dispositivo de control de ganancia automático (106, 136) para determinar la ganancia de la señal recibida; un dispositivo de muestreo (108, 138) para muestrear la seña recibida que produce muestras de señal recibidas; un generador de secuencia (112, 142) que suministra una secuencia de referencia con forma de un código de la seña CDMA recibida; un correlacionador de secuencia (110, 140) para correlacionar las muestras de señal recibidas con la secuencia de referencia, produciendo muestras de señal correlacionadas; un dispositivo de umbral suave (114, 146) que aplica un umbral suave a las muestras de señal correlacionadas para descartar cualesquiera muestras de señal correlacionadas por debajo del umbral suave; y un acumulador (116, 150) para acumular lasmuestras de señal correlacionadas que exceden del umbral suave, produciendo dicho acumulador la medida de potencia de la señal recibida.
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公开(公告)号：MX2007002265A
公开(公告)日：2007-04-20
申请号：MX2007002265
申请日：2005-08-22
Applicant: INTERDIGITAL TECH CORP
Inventor： HAIM JOHN W , TYRA FRYDERYK , HAQUE TANBIR , KLAHN GERARD , AYCIN ERICA ELLYN
IPC: H04B1/00
Abstract: Se describe un metodo y aparato para procesar servicios de comunicacion inalambrica multiple en un receptor (100). Un receptor (100) recibe mas de un servicio de comunicacion inalambrica simultaneamente via la interconexion inalambrica. Cada servicio es transmitido via una banda de frecuencia portadora diferente. Las senales portadoras recibidas multiples son reducidas a una banda de frecuencia intermedia (IF) utilizando un mezclador (110, 116) y un oscilador local (LO). Se ajustan el LO y las frecuencias de muestreo tal que las senales de banda IF convertidas de las senales de entrada estan adyacentes espectralmente o se superponen entre si en cierto grado. Se mide SINAD de los servicios en cada una de una pluralidad de condiciones de superposicion espectral. Las frecuencias LO y la frecuencia de muestreado despues se ajustan en base en los resultados de la medicion SINAD.
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公开(公告)号：AT324715T
公开(公告)日：2006-05-15
申请号：AT01957205
申请日：2001-07-20
Applicant: INTERDIGITAL TECH CORP
Inventor： NOLAN JAMES , KAZAKEVICH LEONID , TYRA FRYDERYK , REGIS ROBERT , SCHREIDER FRED
IPC: H04B17/00
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Patent Agency Ranking26.发明专利
公开(公告)号：CA2561547A1
公开(公告)日：2005-10-27
申请号：CA2561547
申请日：2005-03-22
Applicant: INTERDIGITAL TECH CORP
Inventor： KLAHN GERARD , TROIANO ROBERT , TYRA FRYDERYK , AXNESS TIMOTHY A
Abstract: Apparatus for reducing adjacent channel interference between proximate wireless communication units. Each wireless communication unit includes a digital baseband circuit and an analog baseband circuit. The digital baseban d circuit includes at least one group delay compensation equalizer and at leas t one finite-impulse response (FIR) filter. The analog baseband circuit includ es a radio (transmitter section), a power amplifier and a narrowband filter. Th e narrowband filter compensates for deficiencies of the power amplifier including distortion and radio frequency (RF) power spill over. The group delay compensation filter compensates for undesired characteristics (e.g., group delay variation) exhibited by the narrowband filter.
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公开(公告)号：CA2518476A1
公开(公告)日：2004-09-30
申请号：CA2518476
申请日：2004-03-12
Applicant: INTERDIGITAL TECH CORP
Inventor： AXNESS TIMOTHY A , GRIECO DONALD M , GUCCIONE LOUIS J , TYRA FRYDERYK , HAIM JOHN W
Abstract: An automatic gain control (AGC) method according to the present invention applies an initial gain by a digital AGC circuit (13) in a timeslot is determined using a final calculated gain from the same timeslot in the previous frame together with an offset factor. An erase function (14) is activated for a given data sample block when the number of saturated data samples that are detected within the block (17) exceeds a threshold value. T he power measurement made by the AGC circuit and used to update the gain is adjusted based on the number of measured data samples that are saturated. These elements provide a gain limiting function and allows limiting of the dynamic range for further signal processing.
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公开(公告)号：AU7897401A
公开(公告)日：2002-02-05
申请号：AU7897401
申请日：2001-07-20
Applicant: INTERDIGITAL TECH CORP
Inventor： NOLAN JAMES , KAZAKEVICH LEONID , TYRA FRYDERYK , REGIS ROBERT , SCHREIDER FRED
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公开(公告)号：DE60309878T2
公开(公告)日：2007-10-18
申请号：DE60309878
申请日：2003-07-29
Applicant: INTERDIGITAL TECH CORP
Inventor： TYRA FRYDERYK , GUCCIONE J
Abstract: A received power of a code division multiple access (CDMA) signal is determined. Samples of a spectrum associated with the received CDMA signal are taken as received samples, which are then correlated with a code of the CDMA signal. For correlated samples below a first threshold, those correlated samples are processed by being made to be zero. For samples between the first threshold and a second threshold, those correlated samples are processed by rescaling. The correlated samples above the second threshold are passed unchanged. The received power level of the received CDMA signal is determined using the correlated samples after the processing.
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公开(公告)号：AT346429T
公开(公告)日：2006-12-15
申请号：AT03772088
申请日：2003-07-29
Applicant: INTERDIGITAL TECH CORP
Inventor： TYRA FRYDERYK , GUCCIONE LOUIS J
Abstract: A received power of a code division multiple access (CDMA) signal is determined. Samples of a spectrum associated with the received CDMA signal are taken as received samples, which are then correlated with a code of the CDMA signal. For correlated samples below a first threshold, those correlated samples are processed by being made to be zero. For samples between the first threshold and a second threshold, those correlated samples are processed by rescaling. The correlated samples above the second threshold are passed unchanged. The received power level of the received CDMA signal is determined using the correlated samples after the processing.
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