公开(公告)号：ID26100A

公开(公告)日：2000-09-13

申请号：ID20000777

申请日：1997-03-13

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  KOWALSKI JOHN ,  OZLUTURK FATIH ,  VERBERG AVI SIL ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JAKES ALEXANDER

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.

公开(公告)号：DE907921T1

公开(公告)日：1999-10-21

申请号：DE97933270

申请日：1997-06-27

Applicant: INTERDIGITAL TECH CORP

Inventor： REGIS ROBERT

IPC: G06F13/376 ,  G06F13/374 ,  H04B1/7075 ,  H04B1/708

Abstract: A parallel packetized intermodule arbitrated high speed control data bus system which allows high speed communications between microprocessor modules in a more complex digital processing environment. The system features a simplified hardware architecture featuring fast FIFO queuing operating at 12.5 MHz, TTL CMOS compatible level clocking signals, single bus master arbitration, synchronous clocking, DMA, and unique module addressing for multiprocessor systems. The system includes a parallel data bus with sharing bus masters residing on each processing module decreeing the communication and data transfer protocols. Bus arbitration is performed over a dedicated serial arbitration line and each requesting module competes for access to the parallel data bus by placing the address of the requesting module on the arbitration line and monitoring the arbitration line for collisions.

公开(公告)号：AP682A

公开(公告)日：1998-09-14

申请号：AP9801214

申请日：1996-07-01

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  KOWALSKI JOHN ,  OZLUTURK FAITH ,  VERBERG AVIL SIL ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JAQUES ALEXANDER

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 ,  H04Q7/30 ,  H04

Abstract: A multiple access, sprea-spectrum communication sysyem processes a plurality of information signals received by a radio carrier station (rcs)over telecommunication lines for simultaneous transmission over a radio frequency (rf)channel as a code-division-nultiplexed (cdm)signal to a group of subscriber units (sus0. The rcs receives a call request signal that corresponds to a telecommunication line information signal, and a user indentification signal that indentifies a suer to receive the call. The rcs includes a plurality of code division multiple access (cdma)modems, one of which provides message code signals synchronize to the global pilot signal. Each modem on information signal with a message signal to provide a cdm processed signal. The rcs includes a system channel controller coupled to receive a remote cal. An rf transmitter is connected to all of the modems to combine the cdm processed signals with the global pilot code signal to generate a cdm signal. The transmitter also modulates a carrier signal with the cdm signal and transmitts the modulated carriersignal through an rf communication channel to the us's. Each su includes a cdm mdem which is also synchronized to the global pilot signal. Te cdm modem despreads the cdma signal and provides a despreads information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the rcs and the su

公开(公告)号：AP681A

公开(公告)日：1998-09-14

申请号：AP9600832

申请日：1996-07-01

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  KOWALSKI JOHN ,  OZLUTURK FAITH ,  SILVERBERG AVI ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER

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 ,  H04Q7/30 ,  H04J13/04

Abstract: A multiple acces, spread-spectrum communiction system processes a plurality of information signals received by a radio carrier station (rcs)over telecommunication lines for simultaneous transmission over a radio frequency (rf)channel as a code-division-multiplexed (cdm)signal to a group of subscriber units (sus). The rcs receives a call request signal that corresponds to a telecommunication line information signal, and a user indentification signal that idenifies a user to receive the call. The rcs includes a plurality of code division multiple access (cdma)modems, one of which provides a global pilot code signal. The modems provide message code signals synhronized to the global pilot signal. Each modem combines an information signal with a message signal to provide a cdm processed signal. The rcs includes a system channel controller coupled to receive a remote call. An rf transmitter is connected to all of the modems to combine the cdm processed signals with the global pilot code signal to generate a cdm signal. The rf transmitter also modulates a carrier signal with the cdm signal and transmits the modulated carrier signal through an rf communication channel to the uss. Each su includes a cdma modem which is also synchronized to the global pilot signal. The cdma modem despreads the cdm signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the rcs and the sus, and system capacity management for maintaining a maximum number of active sus for improved system perfomance.

公开(公告)号：ID26190A

公开(公告)日：1997-03-13

申请号：ID20000778

申请日：1996-06-28

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JAKES ALEXANDER ,  OZLUTURK FATIH ,  VERBERG AVI SIL

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 ,  H04B7/00

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.

公开(公告)号：FI125334B

公开(公告)日：2015-08-31

申请号：FI20145509

申请日：2014-06-03

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER ,  SILVERBERG AVI

IPC: H03K3/84 ,  H04B1/707 ,  G06F13/374 ,  H03H17/02 ,  H03H17/06 ,  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

公开(公告)号：FI20080292A

公开(公告)日：2008-04-17

申请号：FI20080292

申请日：2008-04-17

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  KOWALSKI JOHN ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER ,  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.

公开(公告)号：MY134704A

公开(公告)日：2007-12-31

申请号：MYPI9602641

申请日：1996-06-27

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  KOWALSKI JOHN ,  OZLUTURK FATIH ,  SILVERBERG AVI ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JAKES ALEXANDER

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: A MULTIPLE ACCESS, SPREAD-SPECTRUM COMMUNICATION SYSTEM PROCESSES A PLURALITY OF INFORMATION SIGNALS RECEIVED BY A RADIO CARRIER STATION (RCS) (104) OVER TELECOMMUNICATION LINES FOR SIMULTANEOUS TRANSMISSION OVER A RADIO FREQUENCY (RF) CHANNEL AS A CODE-DIVISION- MULTIPLEXED (CDM) SIGNAL TO A GROUP OF SUBSCRIBER UNITS (SUS). THE RCS (104) RECEIVES A CALL REQUEST SIGNAL THAT CORRESPONDS TO A TELECOMMUNICATION LINE INFORMATION SIGNAL, AND A USER IDENTIFICATION SIGNAL THAT IDENTIFIES A USER TO WHICH THE CALL REQUEST AND INFORMATION SIGNAL ARE ADDRESSED. THE RCS (104) INCLUDES A PLURALITY OF CODE DIVISION MULTIPLE ACCESS (CDMA) MODEMS, ONE OF WHICH PROVIDES A GLOBAL PILOT CODE SIGNAL, AND THE MODEMS PROVIDE A PLURALITY OF MESSAGE CODE SIGNALS SYNCHRONIZED TO THE GLOBAL PILOT SIGNAL. IN RESPONSE TO A CHANNEL ASSIGNMENT SIGNAL, EACH MODEM COMBINES AN INFORMATION SIGNAL WITH A MESSAGE CODE SIGNAL TO PROVIDE A CDM PROCESSED SIGNAL. THE RCS (104) INCLUDES A SYSTEM CHANNEL CONTROLLER COUPLED TO RECEIVE A REMOTE CALL. THE RCS (104), WHICH PROVIDES THE CHANNEL ASSIGNMENT SIGNAL RESPONSIVE TO THE USER IDENTIFICATION SIGNAL.AN RF TRANSMITTER IS CONNECTED TO ALL OF THE MODEMS TO COMBINE THE CDM PROCESSED SIGNALS WITH THE GLOBAL PILOT CODE SIGNAL TO GENERATE A CDM SIGNAL. THE RF TRANSMITTER ALSO MODULATES A CARRIER SIGNAL WITH THE CDM SIGNAL AND TRANSMITS THE MODULATED CARRIER SIGNAL THROUGH AN RF COMMUNICATION CHANNEL TO THE SUS. EACH SU CORRESPONDING TO THE USER IDENTIFICATION SIGNAL INCLUDES A CDMA MODEM, WHICH IS ALSO SYNCHRONIZED TO THE GLOBAL PILOT SIGNAL. THE CDMA MODEM DESPREADS THE CDM SIGNAL TO RECOVER THE INFORMATION' SIGNAL, AND PROVIDES THE INFORMATION SIGNAL TO THE USER. THE SYSTEM INCLUDES A CLOSED LOOP POWER CONTROL METHOD FOR MAINTAINING A MINIMUM SYSTEM TRANSMIT POWER LEVEL FOR THE RCS (104) AND THE SUS, AND SYSTEM CAPACITY MANAGEMENT FOR MAINTAINING A MAXIMUM NUMBER OF ACTIVE SUS FOR IMPROVED SYSTEM PERFORMANCE.(FIG 1)

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

公开(公告)号：AR034092A2

公开(公告)日：2004-02-04

申请号：ARP000103524

申请日：2000-07-10

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  KOWALSKI ADAM JAN ,  OZLUTURK FATIH M ,  SILVERBERG AVI ,  REGIS ROBERT ,  LUDDY MICHAEL ,  MARRA ALEXANDER ,  JACQUES ALEXANDER

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: Comunicaciones de acceso múltiple por división de códigos (Code Division Multiple Access (CDMA)), conocidas también como comunicaciones de banda ancha. Un dispositivo de modificación de canal portador para un sistema de comunicación de banda ancha de acceso múltiple que incluye numerosas senales de información teniendo cada una diferentes valores de canal, senales de información que son transmitidas como numerosos canales de código de mensaje a través de un canal de radiofrecuencia (RF) como una senal en múltiplex por división de códigos (CDM), que elementos para proveer numerosas senales del tipo llamada correspondientes a los valores de senal de información para las senales de información en donde cada uno de los numerosos canales de código de mensaje soporta un valor de canal de información predeterminado; un transmisor incluyendo un primer elemento de modificación de modo de canal de información que responde a la senal de tipo llamada para cambiar la combinación de la senal de información desde una primera de las senales de código de mensaje a una segunda de las senales código de mensaje, soportando esta segunda senal de código de mensaje un valor de canal de información diferente que la primera senal de código de mensaje; y un receptor incluyendo un segundo elemento de modificación de modo de canal de información que responde a la senal de tipo llamada para cambiar una senal de información recibida desde la primera senal de código de mensaje a la segunda senal de código de mensaje para soportar el valor de canal de información diferente.