公开(公告)号：US6385577B2

公开(公告)日：2002-05-07

申请号：US80563401

申请日：2001-03-14

Applicant: INTERDIGITAL TECH CORP

Inventor： LIN DANIEL ,  MCCARTHY BRIAN M

IPC: G10L11/04 ,  G10L19/00 ,  G10L19/04 ,  G10L19/06 ,  G10L19/08 ,  G10L19/10 ,  G10L19/14

CPC classification number: G10L19/20 ,  G10L19/06 ,  G10L19/09 ,  G10L19/10 ,  G10L25/90

Abstract: A version of a speech signal and an output of a pitch synthesis filter and a linear predictive all-pole (LPC) filter is received. A system impulse response is produced based on in part the received pitch synthesis filter and LPC output. An excitation pulse location is determined so that the determined location minimizes an error between the speech signal version and the system impulse response. The speech signal is encoded with a representation of the determined location.

Abstract translation: 接收语音信号的版本和音调合成滤波器和线性预测全极（LPC）滤波器的输出。 基于部分接收的音调合成滤波器和LPC输出产生系统脉冲响应。 确定激励脉冲位置，使得所确定的位置使语音信号版本与系统脉冲响应之间的误差最小化。 语音信号用所确定的位置的表示进行编码。

公开(公告)号：US4785450B1

公开(公告)日：1999-10-12

申请号：US8223887

申请日：1987-08-06

Applicant: INTERDIGITAL TECH CORP

Inventor： BOLGIANO DUANE R ,  DEANGDEELERT CHUMLONG

IPC: H04B7/26 ,  H04L12/56 ,  H04W72/08 ,  H04W72/12 ,  H04W74/04 ,  H04W84/14 ,  H04J3/16 ,  H04J4/00

CPC classification number: H04W72/085 ,  H04B7/2643 ,  H04W74/04 ,  H04W84/14

公开(公告)号：US6382507B2

公开(公告)日：2002-05-07

申请号：US88649701

申请日：2001-06-21

Applicant: INTERDIGITAL TECH CORP

Inventor： SCHILLING DONALD L

IPC: G06K17/00 ,  G06Q20/04 ,  G06Q20/26 ,  G06Q20/28 ,  G06Q20/32 ,  G06Q20/36 ,  G07F7/08 ,  H04M17/00 ,  H04W4/24 ,  H04W4/26 ,  H04W88/02 ,  G06K5/00 ,  H04M11/00

CPC classification number: G07F7/0866 ,  G06K17/0022 ,  G06Q20/04 ,  G06Q20/26 ,  G06Q20/28 ,  G06Q20/32 ,  G06Q20/322 ,  G06Q20/325 ,  G06Q20/363 ,  H04M15/68 ,  H04M15/715 ,  H04M15/8353 ,  H04M15/842 ,  H04M15/852 ,  H04M17/00 ,  H04M17/02 ,  H04M17/103 ,  H04M17/106 ,  H04M17/20 ,  H04M2017/12 ,  H04M2017/14 ,  H04M2017/2518 ,  H04M2017/255 ,  H04M2215/0196 ,  H04M2215/2026 ,  H04M2215/32 ,  H04M2215/7027 ,  H04M2215/8112 ,  H04M2215/8133 ,  H04M2215/8158 ,  H04M2250/14 ,  H04W4/24 ,  H04W4/26 ,  H04W88/02

Abstract: A radio unit used in a wireless communication system. A card reader reads information from a card. The read information includes a read telephone number stored on the card. A transceiver transmits a signal including the read telephone number to a base station. The transceiver receives calls directed to the read telephone number. The first signal enables the wireless communication system to direct calls for the read telephone number to the radio unit.

Abstract translation: 在无线通信系统中使用的无线电单元。 读卡器从卡读取信息。 读取信息包括存储在卡上的读取电话号码。 收发器将包括读取的电话号码的信号发送到基站。 收发器接收指向读取的电话号码的呼叫。 第一信号使得无线通信系统能够将所读取的电话号码的呼叫引导到无线电单元。

公开(公告)号：US5022024B1

公开(公告)日：1999-06-22

申请号：US34930189

申请日：1989-05-08

Applicant: INTERDIGITAL TECH CORP

Inventor： PANETH ERIC ,  HANDZEL MARK J ,  MORLEY STEVEN A ,  AVIS GRAHAM M

IPC: H04L29/02 ,  H04B7/005 ,  H04B7/04 ,  H04B7/08 ,  H04B7/26 ,  H04J3/00 ,  H04J3/06 ,  H04J3/16 ,  H04J4/00 ,  H04L1/00 ,  H04L1/06 ,  H04L1/16 ,  H04L1/18 ,  H04L5/14 ,  H04L5/22 ,  H04L12/56 ,  H04L27/18 ,  H04M20060101 ,  H04M1/00 ,  H04M3/00 ,  H04M11/00 ,  H04M11/06 ,  H04Q3/42 ,  H04Q3/58 ,  H04Q3/62 ,  H04Q11/04 ,  H04W4/18 ,  H04W12/02 ,  H04W12/10 ,  H04W28/04 ,  H04W28/06 ,  H04W28/14 ,  H04W28/24 ,  H04W28/26 ,  H04W36/06 ,  H04W36/12 ,  H04W40/02 ,  H04W52/00 ,  H04W56/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00 ,  H04W74/04 ,  H04W76/02 ,  H04W84/00 ,  H04W84/08 ,  H04W84/14 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W84/14 ,  H04B7/04 ,  H04B7/0865 ,  H04J3/0647 ,  H04J3/0682 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0026 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0084 ,  H04L1/06 ,  H04L1/08 ,  H04L1/1642 ,  H04L1/18 ,  H04L1/188 ,  H04L1/1887 ,  H04L5/143 ,  H04W4/18 ,  H04W24/00 ,  H04W28/06 ,  H04W28/14 ,  H04W28/24 ,  H04W28/26 ,  H04W36/12 ,  H04W40/02 ,  H04W52/0216 ,  H04W52/20 ,  H04W56/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/042 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/12 ,  H04W74/04 ,  H04W76/02 ,  H04W84/00 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/30 ,  Y02D70/444

Abstract: A master station communicates with the main network, whilst a set of mobile or fixed sub stations of voice or data users share the channel using time division multiplexing. The number of time division channels available depends on the quality of the transmission links, power and modulation index. The rate of errors is detected to maintain a specified condition of operation. When all available channels are occupied a busy signal is transmitted by the master station. The effect of multiplexing on the sub-links gives apparent simultaneous bidirectional transmission.

Abstract translation: 主站与主网络通信，而一组语音或数据用户的移动或固定子站利用时分复用共享信道。 可用的时分信道数量取决于传输链路的质量，功率和调制指数。 检测到错误率以维持指定的操作条件。 当所有可用信道占用时，主站发送忙信号。 多路复用对子链路的影响提供了明显的同时双向传输。

公开(公告)号：JP2015180107A

公开(公告)日：2015-10-08

申请号：JP2015117487

申请日：2015-06-10

Applicant: INTERDIGITAL TECH CORP

Inventor： DIANA PANI ,  CHRISTOPHER R CAVE ,  PAUL MARNIER

IPC: H04W24/10 ,  H04W36/30

Abstract: 【課題】ノードBにフィードバック情報を提供すること【解決手段】CQI(channel quality indication)のレポート又は他の測定のレポートを送信するWTRU(wireless transmit/receive unit)において実行される方法はトリガを受信することで開始する。CQIのレポートは、停止条件が達せられるまでハンドオーバのターゲットのノードBへ送信される。前記WTRUは、停止条件が達せられた場合にターゲットのノードBへのCQIのレポートの送信を停止する。前記方法を実行するように構成されるWTRUは、アンテナと、前記アンテナに接続される送受信機と、前記送受信機と通信するプロセッサとを含み、このプロセッサは、前記CQIのレポートをハンドオーバのターゲットのノードBへ送信するように構成される。【選択図】図5

公开(公告)号：JP2015092739A

公开(公告)日：2015-05-14

申请号：JP2015000567

申请日：2015-01-05

Applicant: INTERDIGITAL TECH CORP

Inventor： PAUL MARNIER ,  CASTOR DOUGLAS R

IPC: H04W24/10 ,  H04B17/40

Abstract: 【課題】無線通信システムにおいて、上り回線容量を増加させるためにチャネル品質インジケータ(Channel Quality Indicator:CQI)フィードバック期間を調整する方法および装置を開示する。【解決手段】上り回線容量は、CQI送信により生起される上り回線干渉を削減することによって増加する。無線送受信ユニット(Wireless Transmit/Receive Unit:WTRU)は、WTRUへの下り回線送信の状態を監視し、かつ、WTRUへの下り回線送信の状態に基づきCQIフィードバック期間を設定する。基地局は、上り回線および下り回線の送信の必要性を監視する。基地局は、その上り回線および下り回線の送信の必要性に基づき、少なくとも1つのWTRUのCQIフィードバック期間を決定し、そしてそのWTRUにコマンドを送り、そのWTRUのCQIフィードバック期間を変更する。【選択図】図1

公开(公告)号：JP2013255281A

公开(公告)日：2013-12-19

申请号：JP2013172527

申请日：2013-08-22

Applicant: INTERDIGITAL TECH CORP

Inventor： TOUAG ATHMANE ,  CUFFARO ANGELO ,  FRANK LA CITA ,  CAVE CHRISTOPHER ,  ROY VINCENT ,  MARINIER PAUL

IPC: H04W36/08 ,  H04W28/18 ,  H04W36/06 ,  H04W36/38 ,  H04W84/12

Abstract: PROBLEM TO BE SOLVED: To allow an AP to initiate the re-association of a WTRU without loss of performance.SOLUTION: A transceiver of an access point (AP) according to the invention is configured to send a request message to a wireless transmit/receive unit (WTRU) using a first set of communication parameters and configured to receive a response message from the WTRU using the first set of communication parameters. The request message includes an identifier of a second AP, a second set of communication parameters, and a field that indicates whether disassociation of the WTRU from the AP is immediate. The response message indicates whether the WTRU accepts or rejects connection with the second AP.

公开(公告)号：JP2012110029A

公开(公告)日：2012-06-07

申请号：JP2012016930

申请日：2012-01-30

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  KOWALSKI JOHN ,  OZLUTURK FATIH

IPC: H03K3/84 ,  H04W52/44 ,  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 ,  H04W52/02 ,  H04W52/04 ,  H04W52/08 ,  H04W52/14 ,  H04W52/24

Abstract: PROBLEM TO BE SOLVED: To reduce power consumption of each of a plurality of transceiver stations constituting a spread spectrum communication system, especially a mobile subscriber station unit, as much as possible.SOLUTION: In a spectrum communication system which maintains an initial transmission power level of a second transceiver station in an inactive state, a first transceiver station despreads reception signals by using a selected chip code associated with a specific spread spectrum signal from the second transceiver station and measures a power level of the despread specific signal. The second transceiver station sometimes transmits the specific spread spectrum signal during the inactive state to a first transceiver, and the first transceiver station receives it, measures a noise power level in a communication channel, estimates a system transmission power level, compares the measured values with the estimated values, and transmits automatic power control (APC) signals to the second transceiver station on the basis of a comparison result. The second transceiver station adjusts the initial transmission power level in response to the APC signals.

公开(公告)号：JP2012110014A

公开(公告)日：2012-06-07

申请号：JP2012006315

申请日：2012-01-16

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04L12/56 ,  H04W36/14 ,  H04L29/06 ,  H04L29/08 ,  H04W8/26 ,  H04W36/00 ,  H04W48/18 ,  H04W80/00 ,  H04W80/04 ,  H04W88/02

Abstract: PROBLEM TO BE SOLVED: To provide a system capable of transferring an existing session between two terminals, in which two systems and two different IP addresses are involved.SOLUTION: Disclosed are an apparatus and a method by which Internet Protocol (IP) traffic can be transferred (i.e., handoff can be performed) between two different terminals operating according to two different technology standards in two different systems with two different IP addresses. For example, a session handoff can be made between a terminal in Wireless Local Area Network (WLAN) and a terminal in a 3GPP UMTS or between a terminal in CDMA 2000 and a terminal in a 3GPP UMTS. These terminals can be either different logical entities encapsulated within a common enclosure, or physically separate entities.

公开(公告)号：JP2003249876A

公开(公告)日：2003-09-05

申请号：JP2003010332

申请日：2003-01-17

Applicant: INTERDIGITAL TECH CORP

Inventor： LOMP GARY ,  OZLUTURK FATIH ,  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 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To provide a code division multiple access modem for a spread spectrum communication system. SOLUTION: The system provides a modem transmitter, which includes a code generator, a spread spectrum measure composing code signals respectively, a global pilot code generator generating global pilot code signals, and a modem receiver which includes a pilot code generator, and a pilot code correlation device correlating between the code phase delay output of a pilot signal and a received CDMA signal and generating a relating pilot signal, after being inverse spread. The system responses a captured signal value and changes a code phase of the pilot signal, until the pilot signal is received. A related pilot code tracking logical circuit responses to the captured signal and adjusts phase of the relating pilot code signal, and the system provides a signal seizure circuit which makes the signal power level of the related pilot code signal after the inverse spread to be a maximum value. COPYRIGHT: (C)2003,JPO