公开(公告)号：EP0974206A4

公开(公告)日：2002-01-16

申请号：EP98906535

申请日：1998-02-18

Applicant: MOTOROLA INC

Inventor： DECLERCK DANIEL J ,  ASHLEY JAMES P

IPC: H04W28/06 ,  H04W36/08 ,  H04B7/216 ,  H04Q7/38

CPC classification number: H04W36/0094

Abstract: A mobile station (106) in a code division multiple access (CDMA) communication system (100) implements scanning of pilot channels on a different frequency by reserving a periodic frame on the forward channel to allow the mobile station (106) to change frequencies and scan for other pilot channels. To preserve some aspects of voice quality, both the base station (102) and mobile station (106) voice encode speech at a maximum of half rate and transmit the information as secondary traffic prior to the frame where the mobile station (106) scans the alternate frequency. To maximize the trade-off between voice quality and frequency of the scan, the base station (102) indicates to the mobile station (106) the period between other frequency scans via messaging. To ensure compatibility, this method can be negotiated via known service configuration negotiation techniques.

公开(公告)号：EP1563489A4

公开(公告)日：2007-06-13

申请号：EP03768792

申请日：2003-11-06

Applicant: MOTOROLA INC

Inventor： JASIUK MARK A ,  ASHLEY JAMES P ,  MITTAL UDAR

IPC: G10L19/08

CPC classification number: G10L19/083

Abstract: A speech coder (300) that performs analysis-by-synthesis coding of a signal determines gain parameters for each constituent component of multiple constituent components of a synthetic excitation signal (ex(n)). The speech coder generates a target vector (p(n)) based on an input signal (s(n)). The speech coder further generates multiple constituent components associated with the synthetic excitation signal, wherein one constituent component of the multiple constituent components is based on a shifted version of another constituent component of the multiple constituent components. The speech coder further evaluates an error criteria based on the target vector and the multiple constituent components to determine a gain associated with each constituent component of the multiple constituent components.

Abstract translation: 甲语音编码器那样进行分析边合成bestimmt用于合成激励信号的多个构成部件的各构成部件的参数的增益的信号的编码。 语音编码器基因利率在输入信号基于目标矢量。 语音编码器与合成激励信号相关联的进一步的基因速率的多个构成部件，worin所述多个构成部件中的一个构成成分是基于所述多个构成部件的另一组成部件的一个移位版本。 编码器进一步评估语音错误基于目标向量和标准的多个构成部件确定性矿与多个构成组件的每个组成部件相关联的增益。

公开(公告)号：EP0979506A4

公开(公告)日：2000-11-15

申请号：EP98901181

申请日：1998-01-05

Applicant: MOTOROLA INC

Inventor： ASHLEY JAMES P

IPC: G10L21/02 ,  G10L11/02 ,  G10L19/00 ,  G10L19/14 ,  H04B14/04 ,  H04J3/00 ,  H04L29/08 ,  G10L9/00

CPC classification number: G10L19/18 ,  G10L25/78

Abstract: To accurately determine rate and voice activity in moderate-to-low signal-to-noise ratios (item 703) (SNRs) to maximize voice quality, system capacity and/or battery life, parameters from a noise suppression system are used as inputs to the rate determination function. Voice metrics are compared to thresholds (item 715) and rates are determined (items 721, 727, 730).

公开(公告)号：EP1110339A4

公开(公告)日：2004-09-08

申请号：EP99942438

申请日：1999-08-24

Applicant: MOTOROLA INC

Inventor： ASHLEY JAMES P ,  PENG WEIMIN

IPC: G10L19/12 ,  G10L11/04 ,  G10L19/04 ,  G10L19/08 ,  H03M7/36 ,  H04B11/00

CPC classification number: G10L19/09

Abstract: An open-loop delay contour estimator (204) generates delay information during coding of an information signal. The delay contour is adjusted according to an error minimization criterion on a subframe basis, which allows a more precise estimate of the true delay contour. A delay contour reconstruction block (211) uses the delay information in a decoder in reconstructing the information signal.

公开(公告)号：EP1092294A4

公开(公告)日：2002-10-16

申请号：EP99917565

申请日：1999-04-16

Applicant: MOTOROLA INC

Inventor： LOVE ROBERT T ,  ASHLEY JAMES P ,  PROCTOR LEE ,  BAROT ANIL ,  COHEN ARNIE

IPC: H04B7/005 ,  H04J3/16 ,  H04L1/00 ,  H04W52/30

CPC classification number: H04L1/0021 ,  H04L1/0009 ,  H04L1/0025 ,  H04W52/30

Abstract: Forward link communication capacity of a communication system, which is providing from a base station to a number of mobile stations a number of forward communication links (123) corresponding to the plurality of mobile stations, is controlled by receiving gain setting (102) associated with at least one of the forward communication links, comparing the gain setting with a gain threshold (123), and adjusting a first encoding rate of at least one of the forward communication links to a second encoding rate based on the comparing. A gain offset (310) attunes the gain threshold (123) to update the gain threshold (123) according to a latest condition of the communication system. The gain offset (310) further is used to determine blocking of an incoming call to the communication system.

公开(公告)号：EP0895688A4

公开(公告)日：2001-11-07

申请号：EP97950580

申请日：1997-11-04

Applicant: MOTOROLA INC

Inventor： ASHLEY JAMES P ,  PROCTOR LEE M

IPC: H04M1/60 ,  H04B3/23 ,  H04M9/08 ,  H04M9/00 ,  H04B3/20 ,  H04M11/00

CPC classification number: H04M9/082 ,  H04B3/23

Abstract: An improved non-linear processor used in echo cancellation eliminates a comfort noise source (214) and instead inputs a control signal (224) directly into a noise suppression system (403). The noise suppression system (403) uses the control signal (224) to inhibit the iterative update of the background noise estimate when the control signal (224) is active, which prevents any residual echo from biasing the noise estimate provided by the noise suppression system (403). Additionally, the control signal (224) is used by a gain calculator (533) within the noise suppression system (403) to attenuate each frequency band to the maximum allowable amount plus the current residual channel signal-to-noise ratio (SNR). Depending on the implementation, the noise suppression system (403) models the background noise of either a user of the PSTN or a user of a mobile station.

公开(公告)号：WO2007059437A3

公开(公告)日：2008-04-10

申请号：PCT/US2006060784

申请日：2006-11-10

Applicant: MOTOROLA INC ,  MITTAL UDAR ,  ASHLEY JAMES P

Inventor： MITTAL UDAR ,  ASHLEY JAMES P

IPC: H04L12/16

CPC classification number: G10L21/038

Abstract: A method and apparatus for improving listener differentiation of talkers during a conference call is provided herein. Particularly, during a teleconference a node (101) will extend the bandwidth of received signals (e.g., speech). Each caller within the conference call will then have their voice projected by the node (101) to a particular spot in three-dimensional space.

Abstract translation: 本文提供了一种用于在电话会议期间改善讲话者的听众区分的方法和装置。 特别地，在电话会议期间，节点（101）将扩展接收信号（例如语音）的带宽。 电话会议中的每个呼叫者然后将其节点（101）投射到三维空间中的特定点的声音。

公开(公告)号：WO2008033608A2

公开(公告)日：2008-03-20

申请号：PCT/US2007074222

申请日：2007-07-24

Applicant: MOTOROLA INC ,  MITTAL UDAR ,  ASHLEY JAMES P ,  CRUZ-ZENO EDGARDO M

Inventor： MITTAL UDAR ,  ASHLEY JAMES P ,  CRUZ-ZENO EDGARDO M

IPC: G10L21/00

CPC classification number: G06F17/17 ,  G10L19/0212 ,  G10L19/035 ,  H03M7/14

Abstract: The invention utilizes low complexity estimates of complex functions to perform combinatorial coding of signal vectors. The invention disregards the accuracy of such functions as long as certain sufficient properties are maintained. The invention in turn may reduce computational complexity of certain coding and decoding operations by two orders of magnitude or more for a given signal vector input.

Abstract translation: 本发明利用复杂函数的低复杂度估计来执行信号向量的组合编码。 本发明忽略了这些功能的准确性，只要保持某些足够的性能即可。 对于给定的信号向量输入，本发明可以将特定编码和解码操作的计算复杂度降低两个数量级或更多。

公开(公告)号：WO2007018882A2

公开(公告)日：2007-02-15

申请号：PCT/US2006026617

申请日：2006-07-07

Applicant: MOTOROLA INC ,  MIRANDA-KNAPP CARLOS A ,  ASHLEY JAMES P

Inventor： MIRANDA-KNAPP CARLOS A ,  ASHLEY JAMES P

IPC: H04M1/64 ,  H04M15/06

CPC classification number: H04M1/573 ,  G10L21/00 ,  G10L2021/0135 ,  H04M1/6008 ,  H04M1/72544 ,  H04M15/06

Abstract: A communication device (10) can include a transceiver (12), a transducer or microphone (14) coupled to the transceiver for receiving voice input from a user, and a processor (16) coupled to the transceiver. The processor can be programmed to receive (32) a predetermined type of phone call or an indication of a caller indication from a calling party and warp (38) a voice input from the user of the communication device based on the caller indication. How the predetermined type of phone call is determined can be done in a number of ways including using an optional caller identification module (18). The caller ID module can provide information on whether the caller is recognized or whether the caller ID information is unavailable.

Abstract translation: 通信设备（10）可以包括耦合到收发器的收发器（12），换能器或麦克风（14），用于从用户接收语音输入，以及耦合到收发器的处理器（16）。 处理器可以被编程为从主叫方接收（32）预定类型的电话呼叫或呼叫者指示的指示，并且基于呼叫者指示扭曲（38）来自通信设备的用户的语音输入。 如何确定预定类型的电话呼叫可以以多种方式完成，包括使用可选的呼叫者识别模块（18）。 呼叫者ID模块可以提供关于呼叫者是否被识别或呼叫者ID信息是否不可用的信息。