公开(公告)号：US06993246B1

公开(公告)日：2006-01-31

申请号：US09662474

申请日：2000-09-15

Applicant: Davis Pan ,  James M. Rehg

Inventor： Davis Pan ,  James M. Rehg

IPC: H04N5/93

CPC classification number: G11B27/10 ,  H04L67/12

Abstract: Events in a first data stream are correlated with events in a second data stream based on a method of indexing. As information of a first and second data stream are stored to a data file, the data streams are monitored for certain trigger events. An informational data set is generated and stored in an index file for each detected trigger event. Preferably, each informational data set includes the type of detected event, a time-stamp indicating when the event occurred and a data pointer indicating where the data associated with the event is stored in a corresponding data file. When time-stamps of detected trigger events in both data streams are generated based on a common system clock, data in one data stream is correlated with data in another data stream based on the time-stamps.

Abstract translation: 基于索引的方法，第一数据流中的事件与第二数据流中的事件相关。 随着第一和第二数据流的信息被存储到数据文件中，对于某些触发事件监视数据流。 生成信息数据集并存储在每个检测到的触发事件的索引文件中。 优选地，每个信息数据集包括检测到的事件的类型，指示事件发生的时间戳和指示与事件相关联的数据在哪里存储在相应的数据文件中的数据指针。 当基于公共系统时钟产生两个数据流中检测到的触发事件的时间戳时，一个数据流中的数据与基于时间戳的另一个数据流中的数据相关。

公开(公告)号：US20120201397A1

公开(公告)日：2012-08-09

申请号：US13446911

申请日：2012-04-13

Applicant: Davis Pan ,  Christopher J. Cheng ,  Eduardo Salvador

Inventor： Davis Pan ,  Christopher J. Cheng ,  Eduardo Salvador

IPC: G10K11/16

CPC classification number: G10K11/178 ,  H03H21/0067

Abstract: An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors. The frequency of a noise reduction signal may be related to the engine speed of an engine associated with the system within which the active noise reduction system is operated. The engine speed signal may be a high latency signal and may be obtained by the active noise reduction system over audio entertainment circuitry.

Abstract translation: 使用自适应滤波器的有源降噪系统。 一种主动降噪系统的操作方法包括平滑泄漏因子流。 噪声降低信号的频率可以与与主动降噪系统所在的系统相关联的发动机的发动机转速相关。 发动机速度信号可以是高延迟信号，并且可以通过音频娱乐电路上的主动降噪系统获得。

公开(公告)号：US20080095383A1

公开(公告)日：2008-04-24

申请号：US11426537

申请日：2006-06-26

Applicant: Davis Pan ,  Christopher J. Cheng ,  Eduardo Salvador

Inventor： Davis Pan ,  Christopher J. Cheng ,  Eduardo Salvador

IPC: A61F11/06 ,  G10K11/16 ,  H03B29/00

CPC classification number: G10K11/178 ,  H03H21/0067

Abstract: An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors. The frequency of a noise reduction signal may be related to the engine speed of an engine associated with the system within which the active noise reduction system is operated. The engine speed signal may be a high latency signal and may be obtained by the active noise reduction system over audio entertainment circuitry.

Abstract translation: 使用自适应滤波器的有源降噪系统。 一种主动降噪系统的操作方法包括平滑泄漏因子流。 噪声降低信号的频率可以与与主动降噪系统运行的系统相关联的发动机的发动机转速相关。 发动机速度信号可以是高延迟信号，并且可以通过音频娱乐电路上的主动降噪系统获得。

公开(公告)号：US20140153731A1

公开(公告)日：2014-06-05

申请号：US13705432

申请日：2012-12-05

Applicant: Davis Pan

Inventor： Davis Pan

IPC: G10K11/00

CPC classification number: G10K11/002 ,  G10K11/178 ,  H04R3/00 ,  H04R2410/03

Abstract: Provided are a method and apparatus comprising an active noise reduction system. The active noise reduction system comprises an input transducer for transducing acoustic noise to a noise signal. The input transducer has a first sensitivity at a threshold temperature. The active noise reduction system includes circuitry that receives the noise signal and, in response, compensates for an effect by an ambient temperature on a second sensitivity of the input transducer by preventing the second sensitivity from being greater than the first sensitivity in response to a temperature deviation from the threshold temperature.

Abstract translation: 提供了一种包括主动降噪系统的方法和装置。 主动降噪系统包括用于将声学噪声转换成噪声信号的输入换能器。 输入传感器在阈值温度下具有第一灵敏度。 有源降噪系统包括接收噪声信号的电路，并且作为响应，通过防止第二灵敏度响应于温度而大于第一灵敏度来补偿环境温度对输入换能器的第二灵敏度的影响 偏离阈值温度。

公开(公告)号：US06421084B1

公开(公告)日：2002-07-16

申请号：US09033346

申请日：1998-03-02

Applicant: Edward T. Chang ,  Shiufun Cheung ,  Davis Pan

Inventor： Edward T. Chang ,  Shiufun Cheung ,  Davis Pan

IPC: H04N973

CPC classification number: G06T3/4015 ,  G06T3/4007 ,  H04N9/045

Abstract: A digital imaging system is provided for interpolating a full color image from a camera having an array of single color sensors. Measured color values are stored as an array of data elements in a memory of the system. Each data element corresponds to the measured color value from one sensor. A set of gradient values is determined for each data element at a specific location in the array. The gradient values correspond to color value differences in a plurality of directions from the data element. From the set of gradient values, a threshold value is determined. Using the threshold value, a subset of gradient values is selected so that the members of the subset have gradient values less than the threshold. Additional color values for each data element are interpolated according to the subset of gradient values.

Abstract translation: 提供了一种用于从具有单色传感器阵列的相机内插全色图像的数字成像系统。 测量的颜色值作为数据元素的数组存储在系统的存储器中。 每个数据元素对应于来自一个传感器的测量颜色值。 为阵列中特定位置的每个数据元素确定一组梯度值。 梯度值对应于来自数据元素的多个方向上的色值差。 从梯度值集合中确定阈值。 使用阈值，选择梯度值的子集，使得子集的成员具有小于阈值的梯度值。 每个数据元素的附加颜色值根据梯度值的子集进行内插。

公开(公告)号：US20140233748A1

公开(公告)日：2014-08-21

申请号：US13768249

申请日：2013-02-15

Applicant: Dennis Klug ,  James May ,  Davis Pan

Inventor： Dennis Klug ,  James May ,  Davis Pan

IPC: G10K11/16

CPC classification number: G10K11/178 ,  G10K2210/1282

Abstract: Systems and methods to cancel noise in a vehicle are disclosed. A first speaker is positioned forward of a steering wheel of a vehicle. The first speaker generates a first signal configured to acoustically cancel noise produced by operation of the vehicle. A second speaker is positioned forward of the steering wheel. The second speaker generates a second signal to acoustically cancel the noise produced by the operation of the vehicle. The first and the second speakers are capable of generating the first and the second signals independently of one another.

Abstract translation: 公开了消除车辆噪声的系统和方法。 第一扬声器位于车辆方向盘的前方。 第一扬声器产生被配置为声学地消除由车辆的操作产生的噪声的第一信号。 第二扬声器位于方向盘的前方。 第二扬声器产生第二信号以声学地消除由车辆的操作产生的噪声。 第一和第二扬声器能够彼此独立地产生第一和第二信号。

公开(公告)号：US08798282B2

公开(公告)日：2014-08-05

申请号：US13446911

申请日：2012-04-13

Applicant: Davis Pan ,  Christopher J. Cheng ,  Eduardo Salvador

Inventor： Davis Pan ,  Christopher J. Cheng ,  Eduardo Salvador

IPC: A61F11/06

CPC classification number: G10K11/178 ,  H03H21/0067

Abstract: An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors. The frequency of a noise reduction signal may be related to the engine speed of an engine associated with the system within which the active noise reduction system is operated. The engine speed signal may be a high latency signal and may be obtained by the active noise reduction system over audio entertainment circuitry.

Abstract translation: 使用自适应滤波器的有源降噪系统。 一种主动降噪系统的操作方法包括平滑泄漏因子流。 噪声降低信号的频率可以与与主动降噪系统运行的系统相关联的发动机的发动机转速相关。 发动机速度信号可以是高延迟信号，并且可以通过音频娱乐电路上的主动降噪系统获得。

公开(公告)号：US6092041A

公开(公告)日：2000-07-18

申请号：US701293

申请日：1996-08-22

Applicant: Davis Pan ,  Otto Schnurr

Inventor： Davis Pan ,  Otto Schnurr

IPC: G10L7/02

CPC classification number: G10L19/24 ,  G10L19/002

Abstract: The invention provides a device, method (400,500,600), and system (100) to improve compression efficiency when coding audio for bitrate scalability. It includes at least one of an encoder and a decoder and is applicable when utilizing perceptual coding for an upper bitrate. The encoder includes a hybrid psychoacoustic modeling unit, coupled to receive lowband audio and diffband audio, for determining psychoacoustic data, and a quantizer control and zero-flagging unit, coupled to receive psychoacoustic data and diffband audio, for determining explicit quantizer stepsize parameters and at least one of: 1) implicit quantizer stepsize parameters and 2) implicit zero-flags. The decoder includes a lowband psychoacoustic model, coupled to receive lowband audio samples, for determining lowband psychoacoustic data, and a implicit quantizer stepsize and zero-flag computer, coupled to receive lowband psychoacoustic data for determining at least one of: 1) implicit quantizer stepsize parameters and 2) implicit zero-flags.

Abstract translation: 本发明提供了一种用于在为比特率可缩放性编码音频时提高压缩效率的装置，方法（400,500,600）和系统（100）。 它包括编码器和解码器中的至少一个，并且当对高比特率使用感知编码时是适用的。 编码器包括耦合以接收用于确定心理声学数据的低带音频和差分音频的混合心理声学建模单元，以及耦合以接收心理声学数据和差分音频的量化器控制和零标记单元，用于确定显式量化器步长参数，并且 最少的一个：1）隐式量化器stepize参数和2）隐式零标志。 解码器包括低频心理声学模型，耦合以接收低频带音频样本，用于确定低频心理声学数据;以及隐式量化器步进和零标记计算机，耦合到接收低频心理声学数据，用于确定以下至少一个：1）隐式量化器步长 参数和2）隐式零标志。

公开(公告)号：US08194873B2

公开(公告)日：2012-06-05

申请号：US11426537

申请日：2006-06-26

Applicant: Davis Pan ,  Christopher J. Cheng ,  Eduardo Salvador

Inventor： Davis Pan ,  Christopher J. Cheng ,  Eduardo Salvador

IPC: A61F11/06 ,  G10K11/16 ,  H03B29/00 ,  H04B15/00

CPC classification number: G10K11/178 ,  H03H21/0067

Abstract: An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors. The frequency of a noise reduction signal may be related to the engine speed of an engine associated with the system within which the active noise reduction system is operated. The engine speed signal may be a high latency signal and may be obtained by the active noise reduction system over audio entertainment circuitry.

公开(公告)号：US20070297619A1

公开(公告)日：2007-12-27

申请号：US11426512

申请日：2006-06-26

Applicant: Davis Pan

Inventor： Davis Pan

IPC: A61F11/06

CPC classification number: H04R3/002 ,  G10K11/178 ,  G10K11/17854 ,  G10K11/17883 ,  G10K11/17885 ,  G10K2210/1282

Abstract: An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors. The frequency of a noise reduction signal may be related to the engine speed of an engine associated with the system within which the active noise reduction system is operated. The engine speed signal may be a high latency signal and may be obtained by the active noise reduction system over audio entertainment circuitry.

Abstract translation: 使用自适应滤波器的有源降噪系统。 一种主动降噪系统的操作方法包括平滑泄漏因子流。 噪声降低信号的频率可以与与主动降噪系统所在的系统相关联的发动机的发动机转速相关。 发动机速度信号可以是高延迟信号，并且可以通过音频娱乐电路上的主动降噪系统获得。