公开(公告)号：US20190287513A1

公开(公告)日：2019-09-19

申请号：US15922852

申请日：2018-03-15

Applicant: Motorola Mobility LLC

Inventor： Rachid Alameh ,  James P. Ashley ,  Jarrett Simerson ,  Thomas Merrell

IPC: G10L13/033 ,  G10L13/047 ,  G10L19/018 ,  G10L17/00 ,  G06F3/0482

Abstract: An electronic device includes an audio synthesizer. The audio synthesizer can generate a voice-synthesized audio output stream as a function of one or more audible characteristics extracted from voice input received from an authorized user of the electronic device. The audio synthesizer can also apply an acoustic watermark to the voice-synthesized audio output stream, the acoustic watermark indicating that the voice-synthesized audio output stream is machine made.

公开(公告)号：US20140257798A1

公开(公告)日：2014-09-11

申请号：US14200192

申请日：2014-03-07

Applicant: Motorola Mobility LLC

Inventor： Udar Mittal ,  James P. Ashley

IPC: G10L19/12 ,  G10L19/02 ,  G10L19/032

CPC classification number: G10L19/06 ,  G10L19/0208

Abstract: Disclosed are systems and methods for the efficient conversion of linear predictive coefficients. This method is usable, for example, in the conversion of full band linear predictive coding (“LPC”) coefficients to sub-band LPCs of a sub-band speech codec. The sub-bands may or may not be down-sampled. In an embodiment, the LPC coefficients of the sub-bands are obtained from the correlation coefficients, which are in turn obtained by filtering the auto-regressive extended auto-correlation coefficients of the full band LPCs. The method also allows the generation of an LPC approximation of a pole-zero weighted synthesis filter.

Abstract translation: 公开了用于线性预测系数的有效转换的系统和方法。 该方法可用于例如将全带线性预测编码（“LPC”）系数转换为子带语音编解码器的子带LPC。 子带可以是或不是被采样。 在一个实施例中，从相关系数中获得子带的LPC系数，相关系数又通过对全频带LPC的自回归扩展自相关系数进行滤波而获得。 该方法还允许产生极零加权合成滤波器的LPC近似。

公开(公告)号：US11900784B2

公开(公告)日：2024-02-13

申请号：US16883202

申请日：2020-05-26

Applicant: MOTOROLA MOBILITY LLC

Inventor： Rachid Alameh ,  Yi Wu ,  James P. Ashley ,  Zhengping Ji

IPC: G08B21/18 ,  H05K5/03 ,  A63F13/214 ,  G06F3/044 ,  H05K5/00

CPC classification number: G08B21/182 ,  A63F13/214 ,  G06F3/044 ,  H05K5/0017 ,  H05K5/03

Abstract: An electronic device has pair(s) of conductive plates that is coupled to a housing and is electrically isolated by a dielectric material. The pair(s) of conductive plates is positioned to change relative orientation in relation to mechanical force that deforms the housing. Capacitive driver(s) is electrically coupled to pair(s) of conductive plates. A controller is communicatively coupled to the capacitive driver(s). The controller identifies a first capacitance of the pair(s) of conductive plates associated with the housing being in a normal state. The controller detects, via the capacitor driver(s), a change in capacitance from the first capacitance to a second capacitance of the pair(s) of conductive plates. The controller compares the change in capacitance to a threshold. In response to the change exceeding the threshold, the controller generates a notification.

公开(公告)号：US09256579B2

公开(公告)日：2016-02-09

申请号：US13894557

申请日：2013-05-15

Applicant: MOTOROLA MOBILITY LLC

Inventor： Udar Mittal ,  James P. Ashley ,  Edgardo M. Cruz-Zeno

IPC: G06F17/17 ,  H03M7/14 ,  G10L19/02 ,  G10L19/035

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.

公开(公告)号：US09123328B2

公开(公告)日：2015-09-01

申请号：US13626938

申请日：2012-09-26

Applicant: MOTOROLA MOBILITY LLC

Inventor： Udar Mittal ,  James P. Ashley

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/005 ,  G10L19/18

CPC classification number: G10L19/005 ,  G10L19/18

Abstract: A method and apparatus provides for frame loss recovery following a loss of a frame in an audio codec. The lost frame is identified. Estimated linear predictive coefficients of a previous transform frame are generated based on a decoded audio of the previous transform frame. An estimated residual of the previous transform frame is generated based on the estimated linear predicative coefficients and the decoded audio. A pitch delay is determined from frame error recovery parameters received with the previous transform frame. An extended residual is generated based on the pitch delay and the estimated residual. A first synthesized signal is generated based on the extended residual and the linear predicative coefficients. A decoded audio output of at least the lost frame is generated based on the first synthesized signal. The frame error recovery parameters are generated by an encoder.

Abstract translation: 方法和装置提供在音频编解码器中的帧丢失之后的帧丢失恢复。 丢失的帧被识别。 基于先前变换帧的解码音频产生先前变换帧的估计线性预测系数。 基于估计的线性预测系数和解码的音频产生先前变换帧的估计残差。 音调延迟是由前一个变换帧接收到的帧错误恢复参数确定的。 基于音调延迟和估计的残差产生扩展残差。 基于扩展残差和线性预测系数生成第一合成信号。 基于第一合成信号生成至少丢失帧的解码音频输出。 帧错误恢复参数由编码器生成。

公开(公告)号：US20140129214A1

公开(公告)日：2014-05-08

申请号：US13667001

申请日：2012-11-02

Applicant: MOTOROLA MOBILITY LLC

Inventor： James P. Ashley ,  Udar Mittal

IPC: G10L19/04

CPC classification number: G10L19/12 ,  G10L19/005 ,  G10L19/083 ,  G10L2019/0013

Abstract: A method (1100) and apparatus (100) generate a candidate code-vector to code an information signal. The method can include producing (1110) a weighted target vector from an input signal. The method can include processing (1120) the weighted target vector through an inverse weighting function to create a residual domain target vector. The method can include performing (1130) a first search process on the residual domain target vector to obtain an initial fixed codebook code-vector. The method can include performing (1140) a second search process over a subset of possible codebook code-vectors for a low weighted-domain error to produce a final fixed codebook code-vector. The subset of possible codebook code-vectors can be based on the initial fixed codebook code-vector. The method can include generating (1150) a codeword representative of the final fixed codebook code-vector. The codeword can be for use by a decoder to generate an approximation of the input signal.

Abstract translation: 方法（1100）和装置（100）生成候选码矢量以对信息信号进行编码。 该方法可以包括从输入信号产生（1110）加权的目标矢量。 该方法可以包括通过反加权函数来处理（1120）加权的目标矢量以产生残余域目标向量。 该方法可以包括对剩余域目标向量执行（1130）第一搜索处理以获得初始固定码本码矢量。 该方法可以包括在低加权域误差的可能码本码矢量的子集上执行（1140）第二搜索处理，以产生最终的固定码本码矢量。 可能的码本码矢量的子集可以基于初始固定码本码矢量。 该方法可以包括生成表示最终固定码本码矢量的码字（1150）。 码字可以由解码器用于产生输入信号的近似。

公开(公告)号：US20130254249A1

公开(公告)日：2013-09-26

申请号：US13894557

申请日：2013-05-15

Applicant: MOTOROLA MOBILITY LLC

Inventor： Udar Mittal ,  James P. Ashley ,  Edgardo M. Cruz-Zeno

IPC: G06F17/17

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.

公开(公告)号：US09396734B2

公开(公告)日：2016-07-19

申请号：US14200192

申请日：2014-03-07

Applicant: MOTOROLA MOBILITY LLC

Inventor： Udar Mittal ,  James P. Ashley

IPC: G10L19/06 ,  G10L19/02

CPC classification number: G10L19/06 ,  G10L19/0208

Abstract: Disclosed are systems and methods for the efficient conversion of linear predictive coefficients. This method is usable, for example, in the conversion of full band linear predictive coding (“LPC”) coefficients to sub-band LPCs of a sub-band speech codec. The sub-bands may or may not be down-sampled. In an embodiment, the LPC coefficients of the sub-bands are obtained from the correlation coefficients, which are in turn obtained by filtering the auto-regressive extended auto-correlation coefficients of the full band LPCs. The method also allows the generation of an LPC approximation of a pole-zero weighted synthesis filter.

Abstract translation: 公开了用于线性预测系数的有效转换的系统和方法。 该方法可用于例如将全带线性预测编码（“LPC”）系数转换为子带语音编解码器的子带LPC。 子带可以是或不是被采样。 在一个实施例中，从相关系数中获得子带的LPC系数，相关系数又通过对全频带LPC的自回归扩展自相关系数进行滤波而获得。 该方法还允许产生极零加权合成滤波器的LPC近似。

公开(公告)号：US11763177B2

公开(公告)日：2023-09-19

申请号：US16883264

申请日：2020-05-26

Applicant: MOTOROLA MOBILITY LLC

Inventor： Rachid Alameh ,  Yi Wu ,  James P. Ashley ,  Zhengping Ji

IPC: G06F3/0487 ,  G06N5/04 ,  G06N20/00 ,  A63F13/214 ,  G01L1/14

CPC classification number: G06N5/04 ,  A63F13/214 ,  G01L1/142 ,  G06F3/0487 ,  G06N20/00

Abstract: An electronic device includes a capacitive driver that is electrically coupled to a pair of conductive plates coupled to a housing and electrically isolated by a dielectric material. The conductive plates are positioned to change relative orientation in relation to deformation of the housing in a first direction. A controller identifies a first capacitance of the pair of conductive plates associated with the housing being in a normal alignment relative to the first direction. The controller presents an object on a user interface device in a first kinematic state. The controller detects, via the first capacitor driver, a change in capacitance from the first capacitance to a second capacitance of the pair of conductive plates. The controller associates the change to a first user input. The controller presents the object on the user interface device in a second kinematic state based on the first user input.

公开(公告)号：US20140088974A1

公开(公告)日：2014-03-27

申请号：US13626938

申请日：2012-09-26

Applicant: MOTOROLA MOBILITY LLC

Inventor： Udar Mittal ,  James P. Ashley

IPC: G10L19/04

CPC classification number: G10L19/005 ,  G10L19/18

Abstract: A method and apparatus provides for frame loss recovery following a loss of a frame in an audio codec. The lost frame is identified. Estimated linear predictive coefficients of a previous transform frame are generated based on a decoded audio of the previous transform frame. An estimated residual of the previous transform frame is generated based on the estimated linear predicative coefficients and the decoded audio. A pitch delay is determined from frame error recovery parameters received with the previous transform frame. An extended residual is generated based on the pitch delay and the estimated residual. A first synthesized signal is generated based on the extended residual and the linear predicative coefficients. A decoded audio output of at least the lost frame is generated based on the first synthesized signal. The frame error recovery parameters are generated by an encoder.

Abstract translation: 一种方法和装置提供在音频编解码器中的帧丢失之后的帧丢失恢复。 丢失的帧被识别。 基于先前变换帧的解码音频产生先前变换帧的估计线性预测系数。 基于估计的线性预测系数和解码的音频产生先前变换帧的估计残差。 音调延迟是由前一个变换帧接收到的帧错误恢复参数确定的。 基于音调延迟和估计的残差产生扩展残差。 基于扩展残差和线性预测系数生成第一合成信号。 基于第一合成信号生成至少丢失帧的解码音频输出。 帧错误恢复参数由编码器生成。