公开(公告)号：WO02060053A3

公开(公告)日：2003-05-15

申请号：PCT/US0149166

申请日：2001-12-19

Applicant: ERICSSON TELEFON AB L M ,  ROMESBURG ERIC DOUGLAS

Inventor： ROMESBURG ERIC DOUGLAS

IPC: H03G7/00

CPC classification number: H03G7/007

Abstract: A method of compressing an audio signal can include accepting input samples of the audio signal wherein the input samples include non-zero input samples. A logarithm of each of the non-zero input samples of the audio signal can be calculated. Compressed output samples for each non-zero input sample can then be determined based on the logarithm of each respective non-zero input sample. Preferably, a linear relationship may exist between logarithms of the non-zero input samples and logarithms of the corresponding compressed output samples. A logarithm of each compressed output sample, corresponding to a non-zero input sample, may be based on a product of a logarithm of each corresponding non-zero input sample and a compression factor. Related devices and computer program products are also discussed.

Abstract translation: 压缩音频信号的方法可以包括接受音频信号的输入样本，其中输入样本包括非零输入样本。 可以计算音频信号的每个非零输入样本的对数。 然后可以基于每个相应的非零输入样本的对数来确定每个非零输入样本的压缩输出样本。 优选地，在非零输入样本的对数和对应的压缩输出样本的对数之间可以存在线性关系。 对应于非零输入样本的每个压缩输出样本的对数可以基于每个对应的非零输入样本的对数与压缩因子的乘积。 还讨论了相关设备和计算机程序产品。

公开(公告)号：WO0203376A3

公开(公告)日：2002-05-23

申请号：PCT/US0118521

申请日：2001-06-07

Applicant: ERICSSON INC ,  ROMESBURG ERIC DOUGLAS ,  ARANA MANZANO MANUEL ROSENDO

Inventor： ROMESBURG ERIC DOUGLAS ,  ARANA-MANZANO MANUEL ROSENDO

IPC: G10L11/02 ,  H04B3/23 ,  H04M1/82

CPC classification number: G10L25/78 ,  G10L2025/783 ,  H04B3/23 ,  H04M1/82

Abstract: A ringback detector determines whether ringback by comparing measurements of a characteristic of the received signal, such as the energy of the received signal, to a threshold. The threshold is set initially to a low value and then updated based on the measurements of received signal. The measurements are then compared to the threshold to determine whether ringback is present. An output signal indicative of ringback is generated when ringback is present.

Abstract translation: 回铃检测器通过将接收信号的特性（例如接收信号的能量）的测量值与阈值进行比较来确定回环。 阈值最初设置为低值，然后基于接收信号的测量值进行更新。 然后将测量值与阈值进行比较，以确定是否存在回环。 当回铃存在时，产生指示回铃的输出信号。

公开(公告)号：WO2013019494A3

公开(公告)日：2014-05-08

申请号：PCT/US2012048079

申请日：2012-07-25

Applicant: VALENCELL INC ,  ROMESBURG ERIC DOUGLAS

Inventor： ROMESBURG ERIC DOUGLAS

IPC: A61B5/00

CPC classification number: A61B5/0095 ,  A61B5/0059 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/0245 ,  A61B5/04017 ,  A61B5/0402 ,  A61B5/0476 ,  A61B5/0816 ,  A61B5/7225 ,  A61B5/725 ,  A61B5/7278

Abstract: A physiological signal processing system for a physiological waveform that includes a cardiovascular signal component provides a variable high pass filter that is responsive to the physiological waveform, and that is configured to high pass filter the physiological waveform in response to a corner frequency that is applied. A heart rate metric extractor is responsive to the variable high pass filter and is configured to extract a heart rate metric from the physiological waveform that is high pass filtered. A corner frequency adjuster is responsive to the heart rate metric extractor and is configured to determine the corner frequency that is applied to the variable high pass filter, based on the heart rate metric that was extracted. Analogous methods may also be provided.

Abstract translation: 用于包括心血管信号分量的生理波形的生理信号处理系统提供响应于生理波形的可变高通滤波器，并且被配置为响应于所施加的转角频率对生理波形进行高通滤波。 心率度量提取器响应于可变高通滤波器并且被配置为从高通滤波的生理波形中提取心率度量。 拐角频率调节器响应于心率度量提取器，并且被配置为基于提取的心率度量来确定施加到可变高通滤波器的转角频率。 也可以提供类似的方法。

公开(公告)号：WO2012103273A3

公开(公告)日：2012-10-11

申请号：PCT/US2012022634

申请日：2012-01-26

Applicant: VALENCELL INC ,  LEBOEUF STEVEN FRANCIS ,  TUCKER JESSE BERKLEY ,  AUMER MICHAEL EDWARD ,  ROMESBURG ERIC DOUGLAS ,  MORRIS JOSEPH NORMAN

Inventor： LEBOEUF STEVEN FRANCIS ,  TUCKER JESSE BERKLEY ,  AUMER MICHAEL EDWARD ,  ROMESBURG ERIC DOUGLAS ,  MORRIS JOSEPH NORMAN

IPC: A61B5/02 ,  A61B5/026 ,  A61B5/083 ,  A61B5/1455

CPC classification number: A61B5/721 ,  A61B5/0059 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/024 ,  A61B5/02438 ,  A61B5/026 ,  A61B5/0816 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/6803 ,  A61B5/681 ,  A61B5/6817 ,  A61B5/7203 ,  A61B5/7207 ,  A61B6/507 ,  A61B8/02 ,  A61B8/04 ,  A61B8/06 ,  A61B2560/0247 ,  G06F19/3406 ,  G16H40/63

Abstract: Apparatus and methods for attenuating environmental interference are described. A wearable monitoring apparatus includes a housing configured to be attached to the body of a subject and a sensor module that includes an energy emitter that directs energy at a target region of the subject, a detector that detects an energy response signal - or physiological condition - from the subject, a filter that removes time-varying environmental interference from the energy response signal, and at least one processor that controls operations of the energy emitter, detector, and filter.

Abstract translation: 描述了用于衰减环境干扰的装置和方法。 佩戴式监视装置包括被配置为附接到被摄体的主体的壳体和包括能量发射器的传感器模块，所述能量发射器在对象的目标区域引导能量;检测器，其检测能量响应信号或生理条件， 来自主题的滤波器，其从能量响应信号中去除时变环境干扰，以及至少一个控制能量发射器，检测器和滤波器的操作的处理器。

公开(公告)号：WO2008014017A2

公开(公告)日：2008-01-31

申请号：PCT/US2007062324

申请日：2007-02-16

Applicant: SONY ERICSSON MOBILE COMM AB ,  ROMESBURG ERIC DOUGLAS

Inventor： ROMESBURG ERIC DOUGLAS

IPC: H03G7/00

CPC classification number: H03G7/002 ,  H03F3/68 ,  H03F2200/03 ,  H03G7/007

Abstract: A method and apparatus for limiting an audio signal by establishing a maximum magnitude level that is responsive to a volume control and limiting a reproduced sound to that maximum allowable magnitude level. Limiting circuitry (110, 150) may include analog and digital solutions and may be executed through soft-limiting, hard-limiting, or a combination thereof. A limiter (110, 150) may include circuitry (116) to dynamically detect peak levels in an audio signal. A desired gain may be associated with the audio signal and, if applied, produces a desired peak. This desired peak may be compared to the maximum magnitude level, which may be set relative to a peak acoustic capacity. Audio signal amplification may be set in response to this comparison, such as scaling gain by a ratio of desired peak to maximum magnitude level.

Abstract translation: 一种通过建立响应于音量控制的最大幅度电平限制音频信号并将再现的声音限制到该最大允许幅度电平的方法和装置。 限制电路（110,150）可以包括模拟和数字解决方案，并且可以通过软限制，硬限制或其组合来执行。 限制器（110,150）可以包括用于动态检测音频信号中的峰值电平的电路（116）。 期望的增益可以与音频信号相关联，并且如果被施加，则产生期望的峰值。 这个期望的峰值可以与可以相对于峰值声学容量来设置的最大量值水平进行比较。 音频信号放大可以响应于该比较而设置，诸如通过期望峰值与最大量值水平的比例来缩放增益。