公开(公告)号：HK1048405A1

公开(公告)日：2003-03-28

申请号：HK02109397

申请日：2002-12-30

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN

IPC: H04L7/033 ,  H03L7/06 ,  H03L7/18 ,  H03L7/23 ,  H04B1/707 ,  H04B1/7085 ,  H04B7/26 ,  H04J3/06 ,  H04L ,  H04B

Abstract: The present invention provides a system having a received pseudorandom number (PN) clock signal, a method for providing a synchronized system clock signal having reduced jitter, said synchronized system clock signal being synchronized with said PN clock signal, the method comprising the steps of: providing a stable high frequency reference signal; dividing said high frequency reference signal to provide a system clock signal having a plurality of system clock phases; and adjustably selecting a system clock phase of said plurality of system clock phases in accordance with the PN signal in order to provide said synchronized system clock signal.

公开(公告)号：NO20024618L

公开(公告)日：2002-11-05

申请号：NO20024618

申请日：2002-09-26

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN

IPC: H04B1/7073 ,  H04B1/62 ,  H04B1/7097 ,  H04L27/00 ,  H04B1/707

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.

公开(公告)号：NO20024618A

公开(公告)日：2002-11-05

申请号：NO20024618

申请日：2002-09-26

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN

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

公开(公告)号：DE69528398D1

公开(公告)日：2002-10-31

申请号：DE69528398

申请日：1995-07-17

Applicant: INTERDIGITAL TECH CORP

Inventor： ESTULIN WALTER ,  HUAH JIM J ,  KAEWELL JOHN ,  KINNEY KEVIN ,  LEMMO MARK A ,  REGENSBURG MICHAEL W ,  VANDERSLICE WILLIAM T JR ,  VESSAL DAVID

IPC: H04Q1/28 ,  H04B1/036 ,  H04B1/16 ,  H04B1/40 ,  H04B7/26 ,  H04M1/73 ,  H04M19/00 ,  H04M19/02 ,  H04W52/02 ,  H04B1/04

Abstract: A subscriber unit of a time division multiple access (TDMA) radiotelephone system is, from a power consumption standpoint, reconfigured in each time slot of a TDMA frame to a power consumption tessellation in which subscriber unit circuit components not needed for communication signal processing in that time slot are powered down, and other components are powered up.Some circuit components are powered down by switching their power supply circuits. In order to minimize the extent of circuitry that must be provided to distribute power consumption control signals, other techniques (which utilize circuitry provided for other purposes), such as clock frequency control or power down commands, also are utilized to modify controlled circuit component power consumption without actually controlling power supply circuits. Loop connection length between the subscriber unit and the subscriber's telephone set, or other terminal equipment, is limited to a length which is much less than the length of a radio link on which the subscriber unit operates. Programmable ring frequency logic controls the frequency of a ringing signal generator, and a high frequency ring control signal is switched on and off in the cadence of ringing operation. Also an expansion header is provided to enable serving plural subscriber loop circuits with the same radio equipment for reducing per line power consumption.

公开(公告)号：AT225097T

公开(公告)日：2002-10-15

申请号：AT00120213

申请日：1995-07-17

Applicant: INTERDIGITAL TECH CORP

Inventor： ESTULIN WALTER ,  HUAH JIM J ,  KAEWELL JOHN ,  KINNEY KEVIN ,  LEMMO MARK A ,  REGENSBURG MICHAEL W ,  VANDERSLICE WILLIAM T JR ,  VESSAL DAVID

IPC: H04Q1/28 ,  H04B1/036 ,  H04B1/16 ,  H04B1/40 ,  H04B7/26 ,  H04M1/73 ,  H04M19/00 ,  H04M19/02 ,  H04W52/02 ,  H04B1/04

Abstract: A subscriber unit of a time division multiple access (TDMA) radiotelephone system is, from a power consumption standpoint, reconfigured in each time slot of a TDMA frame to a power consumption tessellation in which subscriber unit circuit components not needed for communication signal processing in that time slot are powered down, and other components are powered up.Some circuit components are powered down by switching their power supply circuits. In order to minimize the extent of circuitry that must be provided to distribute power consumption control signals, other techniques (which utilize circuitry provided for other purposes), such as clock frequency control or power down commands, also are utilized to modify controlled circuit component power consumption without actually controlling power supply circuits. Loop connection length between the subscriber unit and the subscriber's telephone set, or other terminal equipment, is limited to a length which is much less than the length of a radio link on which the subscriber unit operates. Programmable ring frequency logic controls the frequency of a ringing signal generator, and a high frequency ring control signal is switched on and off in the cadence of ringing operation. Also an expansion header is provided to enable serving plural subscriber loop circuits with the same radio equipment for reducing per line power consumption.

公开(公告)号：NO20024618D0

公开(公告)日：2002-09-26

申请号：NO20024618

申请日：2002-09-26

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN

IPC: H04B1/7073 ,  H04B1/62 ,  H04B1/7097 ,  H04L27/00 ,  H04B

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.

公开(公告)号：HK1033513A1

公开(公告)日：2001-08-31

申请号：HK01104002

申请日：2001-06-11

Applicant: INTERDIGITAL TECH CORP

Inventor： ESTULIN WALTER ,  HUAH JIM J ,  KAEWELL JOHN ,  KINNEY KEVIN ,  LEMMO MARK A ,  REGENSBURG MICHAEL W ,  VANDERSLICE WILLIAM T JR ,  VESSAL DAVID

IPC: H04Q1/28 ,  H04B1/036 ,  H04B1/16 ,  H04B1/40 ,  H04B7/26 ,  H04M1/73 ,  H04M19/00 ,  H04M19/02 ,  H04W52/02 ,  H04B

Abstract: A subscriber unit of a time division multiple access (TDMA) radiotelephone system is, from a power consumption standpoint, reconfigured in each time slot of a TDMA frame to a power consumption tessellation in which subscriber unit circuit components not needed for communication signal processing in that time slot are powered down, and other components are powered up.Some circuit components are powered down by switching their power supply circuits. In order to minimize the extent of circuitry that must be provided to distribute power consumption control signals, other techniques (which utilize circuitry provided for other purposes), such as clock frequency control or power down commands, also are utilized to modify controlled circuit component power consumption without actually controlling power supply circuits. Loop connection length between the subscriber unit and the subscriber's telephone set, or other terminal equipment, is limited to a length which is much less than the length of a radio link on which the subscriber unit operates. Programmable ring frequency logic controls the frequency of a ringing signal generator, and a high frequency ring control signal is switched on and off in the cadence of ringing operation. Also an expansion header is provided to enable serving plural subscriber loop circuits with the same radio equipment for reducing per line power consumption.

公开(公告)号：HK1031957A1

公开(公告)日：2001-06-29

申请号：HK01102471

申请日：2001-04-07

Applicant: INTERDIGITAL TECH CORP

Inventor： ESTULIN WALTER ,  HUAH JIM J ,  KAEWELL JOHN ,  KINNEY KEVIN ,  LEMMO MARK A ,  REGENSBURG MICHAEL W ,  VANDERSLICE WILLIAM T JR ,  VESSAL DAVID

IPC: H04Q1/28 ,  H04B1/036 ,  H04B1/16 ,  H04B1/40 ,  H04B7/26 ,  H04M1/73 ,  H04M19/00 ,  H04M19/02 ,  H04W52/02 ,  H04M ,  H04B

Abstract: A subscriber unit of a time division multiple access (TDMA) radiotelephone system is, from a power consumption standpoint, reconfigured in each time slot of a TDMA frame to a power consumption tessellation in which subscriber unit circuit components not needed for communication signal processing in that time slot are powered down, and other components are powered up.Some circuit components are powered down by switching their power supply circuits. In order to minimize the extent of circuitry that must be provided to distribute power consumption control signals, other techniques (which utilize circuitry provided for other purposes), such as clock frequency control or power down commands, also are utilized to modify controlled circuit component power consumption without actually controlling power supply circuits. Loop connection length between the subscriber unit and the subscriber's telephone set, or other terminal equipment, is limited to a length which is much less than the length of a radio link on which the subscriber unit operates. Programmable ring frequency logic controls the frequency of a ringing signal generator, and a high frequency ring control signal is switched on and off in the cadence of ringing operation. Also an expansion header is provided to enable serving plural subscriber loop circuits with the same radio equipment for reducing per line power consumption.

公开(公告)号：DE966796T1

公开(公告)日：2000-10-05

申请号：DE98908938

申请日：1998-03-04

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN

IPC: H03M13/00 ,  H03M13/41 ,  H04B1/707 ,  H04L1/00 ,  H04L1/08

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.