专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US08185180B2 Method and apparatus for demodulating signals in a pulse oximetry system 有权
标题翻译：用于在脉搏血氧测定系统中解调信号的方法和装置
公开(公告)号：US08185180B2
公开(公告)日：2012-05-22
申请号：US11842106
申请日：2007-08-20
申请人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
发明人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
IPC分类号： A61B5/1455
CPC分类号： A61B5/7228 , A61B5/14551 , A61B5/14552 , A61B5/1495 , A61B5/7203 , A61B5/7217 , A61B5/7232 , A61B2560/0242 , A61B2562/0238 , H04J3/10 , H04J14/08
摘要： A method and an apparatus measure blood oxygenation in a subject. A light source is activated to cause a first emission at a first wavelength and a second emission at a second wavelength. A detector detects a composite signal indicative of an attenuation of the first and second wavelengths by tissue of a patient. The composite signal is demodulated into a first intensity signal and a second intensity signal. Blood oxygenation in the subject is determined from the first and second intensity signals. In one embodiment, demodulation is based at least in part on a period when at least one of the wavelengths is not activated. In one embodiment, a modulation of the first and second wavelengths is determined in order to avoid frequencies of ambient noise. In one embodiment, the composite signal's sampling rate is reduced before and/or after demodulation.
摘要翻译：一种测量受试者血液氧合的方法和装置。光源被激活以引起第一波长的第一发射和第二波长的第二发射。检测器通过患者的组织检测指示第一和第二波长的衰减的复合信号。复合信号被解调为第一强度信号和第二强度信号。从第一和第二强度信号确定受试者的血氧。在一个实施例中，解调至少部分地基于至少一个波长未被激活的周期。在一个实施例中，确定第一和第二波长的调制以避免环境噪声的频率。在一个实施例中，复合信号的采样率在解调之前和/或之后被减小。

42. 发明授权

US07496393B2 Signal processing apparatus 有权
标题翻译：信号处理装置
公开(公告)号：US07496393B2
公开(公告)日：2009-02-24
申请号：US10677050
申请日：2003-09-30
申请人： Mohamed K. Diab , Massi E. Kiani , Walter M. Weber
发明人： Mohamed K. Diab , Massi E. Kiani , Walter M. Weber
IPC分类号： A61B5/1455
CPC分类号： A61B5/14551 , A61B5/021 , A61B5/02154 , A61B5/024 , A61B5/029 , A61B5/0402 , A61B5/0476 , A61B5/0816 , A61B5/14532 , A61B5/14546 , A61B5/1455 , A61B5/4821 , A61B5/7203 , A61B5/7207 , A61B5/7214 , A61B5/7225 , A61B5/7239 , A61B5/7253 , A61B5/7257 , A61B5/726 , A61B6/00 , A61B8/00 , A61B8/5276 , G01N2021/3144 , G06K9/0051 , H04B1/123
摘要： The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.
摘要翻译：本发明涉及一种用于分析测量信号的方法和装置，包括在计算被监测患者的生理参数期间确定测量信号中的相关性的测量。关于血液测碘法测量，特别详细地描述了本发明的用途。

43. 发明授权

US06643530B2 Method and apparatus for demodulating signals in a pulse oximetry system 有权
标题翻译：用于在脉搏血氧测定系统中解调信号的方法和装置
公开(公告)号：US06643530B2
公开(公告)日：2003-11-04
申请号：US09735960
申请日：2000-12-13
申请人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
发明人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
IPC分类号： A61B500
CPC分类号： A61B5/7228 , A61B5/14551 , A61B5/14552 , A61B5/1495 , A61B5/7203 , A61B5/7217 , A61B5/7232 , A61B2560/0242 , A61B2562/0238 , H04J3/10 , H04J14/08
摘要： A method and an apparatus measure blood oxygenation in a subject. A first signal source applies a first input signal during a first time interval. A second signal source applies a second input signal during a second time interval. A detector detects a first parametric signal responsive to the first input signal passing through a portion of the subject having blood therein. The detector also detects a second parametric signal responsive to the second input signal passing through the portion of the subject. The detector generates a detector output signal responsive to the first and second parametric signals. A signal processor receives the detector output signal and demodulates the detector output signal by applying a first demodulation signal to a signal responsive to the detector output signal to generate a first output signal responsive to the first parametric signal. The signal processor applies a second demodulation signal to the signal responsive to the detector output signal to generate a second output signal responsive to the second parametric signal. The first demodulation signal and the second demodulation signal both include at least a first component having a first frequency and a first amplitude and a second component having a second frequency and a second amplitude. The second frequency is a harmonic of the first frequency. The second amplitude is related to the first amplitude to minimize crosstalk from the first parametric signal to the second output signal and to minimize crosstalk from the second parametric signal to the first output signal.
摘要翻译：一种测量受试者血液氧合的方法和装置。第一信号源在第一时间间隔期间施加第一输入信号。第二信号源在第二时间间隔期间施加第二输入信号。检测器检测第一参数信号，其响应于第一输入信号通过其中具有血液的被摄体的一部分。检测器还检测响应于穿过被摄体的该部分的第二输入信号的第二参数信号。检测器响应于第一和第二参数信号产生检测器输出信号。信号处理器接收检测器输出信号并通过将响应于检测器输出信号的第一解调信号施加到信号来解调检测器输出信号，以响应于第一参数信号产生第一输出信号。信号处理器响应于检测器输出信号向该信号施加第二解调信号，以响应于第二参数信号产生第二输出信号。第一解调信号和第二解调信号都至少包括具有第一频率和第一振幅的第一分量和具有第二频率和第二振幅的第二分量。第二频率是第一频率的谐波。第二幅度与第一幅度相关，以使从第一参数信号到第二输出信号的串扰最小化，并使从第二参数信号到第一输出信号的串扰最小化。

44. 发明申请

US20120253155A1 METHOD AND APPARATUS FOR DEMODULATING SIGNALS IN A PULSE OXIMETRY SYSTEM 有权
标题翻译：用于在脉冲OXIMETRY系统中解调信号的方法和装置
公开(公告)号：US20120253155A1
公开(公告)日：2012-10-04
申请号：US13437800
申请日：2012-04-02
申请人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
发明人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
IPC分类号： A61B5/1455 , A61B6/00
CPC分类号： A61B5/7228 , A61B5/14551 , A61B5/14552 , A61B5/1495 , A61B5/7203 , A61B5/7217 , A61B5/7232 , A61B2560/0242 , A61B2562/0238 , H04J3/10 , H04J14/08
摘要： A method and an apparatus measure blood oxygenation in a subject. A light source is activated to cause a first emission at a first wavelength and a second emission at a second wavelength. A detector detects a composite signal indicative of an attenuation of the first and second wavelengths by tissue of a patient. The composite signal is demodulated into a first intensity signal and a second intensity signal. Blood oxygenation in the subject is determined from the first and second intensity signals.
摘要翻译：一种测量受试者血液氧合的方法和装置。光源被激活以引起第一波长的第一发射和第二波长的第二发射。检测器通过患者的组织检测指示第一和第二波长的衰减的复合信号。复合信号被解调为第一强度信号和第二强度信号。从第一和第二强度信号确定受试者的血氧。

45. 发明授权

US08150487B2 Method and apparatus for demodulating signals in a pulse oximetry system 有权
公开(公告)号：US08150487B2
公开(公告)日：2012-04-03
申请号：US11750930
申请日：2007-05-18
申请人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
发明人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
IPC分类号： A61B5/1455
CPC分类号： A61B5/7228 , A61B5/14551 , A61B5/14552 , A61B5/1495 , A61B5/7203 , A61B5/7217 , A61B5/7232 , A61B2560/0242 , A61B2562/0238 , H04J3/10 , H04J14/08
摘要： A method and an apparatus measure blood oxygenation in a subject. A light source is activated to cause a first emission at a first wavelength and a second emission at a second wavelength. A detector detects a composite signal indicative of an attenuation of the first and second wavelengths by tissue of a patient. The composite signal is demodulated into a first intensity signal and a second intensity signal. Blood oxygenation in the subject is determined from the first and second intensity signals. In one embodiment, demodulation is based at least in part on a period when at least one of the wavelengths is not activated. In one embodiment, a modulation of the first and second wavelengths is determined in order to avoid frequencies of ambient noise. In one embodiment, the composite signal's sampling rate is reduced before and/or after demodulation.

46. 发明授权

US07221971B2 Method and apparatus for demodulating signals in a pulse oximetry system 有权
标题翻译：用于在脉搏血氧测定系统中解调信号的方法和装置
公开(公告)号：US07221971B2
公开(公告)日：2007-05-22
申请号：US11311213
申请日：2005-12-19
申请人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
发明人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
IPC分类号： A61B5/00
CPC分类号： A61B5/7228 , A61B5/14551 , A61B5/14552 , A61B5/1495 , A61B5/7203 , A61B5/7217 , A61B5/7232 , A61B2560/0242 , A61B2562/0238 , H04J3/10 , H04J14/08
摘要： A method and an apparatus measure blood oxygenation in a subject. A first signal source applies a first input signal during a first time interval. A second signal source applies a second input signal during a second time interval. A detector detects a first parametric signal responsive to the first input signal passing through a portion of the subject having blood therein. The detector also detects a second parametric signal responsive to the second input signal passing through the portion of the subject. The detector generates a detector output signal responsive to the first and second parametric signals. A signal processor receives the detector output signal and demodulates the detector output signal by applying a first demodulation signal to a signal responsive to the detector output signal to generate a first output signal responsive to the first parametric signal. The signal processor applies a second demodulation signal to the signal responsive to the detector output signal to generate a second output signal responsive to the second parametric signal. The first demodulation signal and the second demodulation signal both include at least a first component having a first frequency and a first amplitude and a second component having a second frequency and a second amplitude. The second frequency is a harmonic of the first frequency. The second amplitude is related to the first amplitude to minimize crosstalk from the first parametric signal to the second output signal and to minimize crosstalk from the second parametric signal to the first output signal.
摘要翻译：一种测量受试者血液氧合的方法和装置。第一信号源在第一时间间隔期间施加第一输入信号。第二信号源在第二时间间隔期间施加第二输入信号。检测器检测第一参数信号，其响应于第一输入信号通过其中具有血液的被摄体的一部分。检测器还检测响应于穿过被摄体的该部分的第二输入信号的第二参数信号。检测器响应于第一和第二参数信号产生检测器输出信号。信号处理器接收检测器输出信号并通过将响应于检测器输出信号的第一解调信号施加到信号来解调检测器输出信号，以响应于第一参数信号产生第一输出信号。信号处理器响应于检测器输出信号向该信号施加第二解调信号，以响应于第二参数信号产生第二输出信号。第一解调信号和第二解调信号都至少包括具有第一频率和第一振幅的第一分量和具有第二频率和第二振幅的第二分量。第二频率是第一频率的谐波。第二幅度与第一幅度相关，以使从第一参数信号到第二输出信号的串扰最小化，并使从第二参数信号到第一输出信号的串扰最小化。

47. 发明授权

US5685299A Signal processing apparatus 失效
标题翻译：信号处理装置
公开(公告)号：US5685299A
公开(公告)日：1997-11-11
申请号：US572488
申请日：1995-12-14
申请人： Mohamed K. Diab , Massi E. Kiani , Walter M. Weber
发明人： Mohamed K. Diab , Massi E. Kiani , Walter M. Weber
IPC分类号： A61B5/00 , G06F17/00 , G06F17/40 , H04B1/12
CPC分类号： G06K9/0051 , A61B5/14551 , A61B5/7214 , H04B1/123 , A61B5/726
摘要： A signal processor which acquires a first signal, including a first primary signal portion and a first secondary signal portion, and a second signal, including a second primary signal portion and a second secondary signal portion, wherein the first and second primary signal portions are correlated. The signals may be acquired by propagating energy through a medium and measuring an attenuated signal after transmission or reflection. Alternatively, the signals may be acquired by measuring energy generated by the medium. A processor of the present invention generates a primary or secondary reference signal which is a combination, respectively, of only the primary or secondary signal portions. The secondary reference signal is then used to remove the secondary portion of each of the first and second measured signals via a correlation canceler, such as an adaptive noise canceler, preferably of the joint process estimator type. The primary reference signal is used to remove the primary portion of each of the first and second measured signals via a correlation canceler. The processor of the present invention may be employed in conjunction with a correlation canceler in physiological monitors wherein the known properties of energy attenuation through a medium are used to determine physiological characteristics of the medium. Many physiological conditions, such as the pulse, or blood pressure of a patient or the concentration of a constituent in a medium, can be determined from the primary or secondary portions of the signal after other signal portion is removed.
摘要翻译：一种信号处理器，其获取包括第一主信号部分和第一辅助信号部分的第一信号和包括第二主信号部分和第二辅信号部分的第二信号，其中第一和第二主信号部分相关。信号可以通过传播能量通过介质并在透射或反射之后测量衰减信号来获取。或者，可以通过测量由介质产生的能量来获取信号。本发明的处理器分别产生主要或次要参考信号，其仅是主要信号部分或次要信号部分的组合。然后，辅助参考信号用于经由相关消除器（例如自适应噪声消除器）去除第一和第二测量信号中的每一个的次级部分，优选地是联合过程估计器类型。主要参考信号用于通过相关消除器去除第一和第二测量信号中的每一个的主要部分。本发明的处理器可以与生理监视器中的相关消除器一起使用，其中通过介质的能量衰减的已知特性用于确定介质的生理特性。可以从消除其他信号部分之后的信号的主要部分或次要部分确定许多生理条件，例如患者的脉搏或血压或培养基中成分的浓度。

48. 发明授权

US08718737B2 Method and apparatus for demodulating signals in a pulse oximetry system 有权
标题翻译：用于在脉搏血氧测定系统中解调信号的方法和装置
公开(公告)号：US08718737B2
公开(公告)日：2014-05-06
申请号：US13437800
申请日：2012-04-02
申请人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
发明人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
IPC分类号： A61B5/1455
CPC分类号： A61B5/7228 , A61B5/14551 , A61B5/14552 , A61B5/1495 , A61B5/7203 , A61B5/7217 , A61B5/7232 , A61B2560/0242 , A61B2562/0238 , H04J3/10 , H04J14/08
摘要： A method and an apparatus measure blood oxygenation in a subject. A light source is activated to cause a first emission at a first wavelength and a second emission at a second wavelength. A detector detects a composite signal indicative of an attenuation of the first and second wavelengths by tissue of a patient. The composite signal is demodulated into a first intensity signal and a second intensity signal. Blood oxygenation in the subject is determined from the first and second intensity signals.
摘要翻译：一种测量受试者血液氧合的方法和装置。光源被激活以引起第一波长的第一发射和第二波长的第二发射。检测器通过患者的组织检测指示第一和第二波长的衰减的复合信号。复合信号被解调为第一强度信号和第二强度信号。从第一和第二强度信号确定受试者的血氧。

49. 发明授权

US07003339B2 Method and apparatus for demodulating signals in a pulse oximetry system 有权
公开(公告)号：US07003339B2
公开(公告)日：2006-02-21
申请号：US10700324
申请日：2003-11-03
申请人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
发明人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
IPC分类号： A61B5/00
CPC分类号： A61B5/7228 , A61B5/14551 , A61B5/14552 , A61B5/1495 , A61B5/7203 , A61B5/7217 , A61B5/7232 , A61B2560/0242 , A61B2562/0238 , H04J3/10 , H04J14/08
摘要： A method and an apparatus measure blood oxygenation in a subject. A first signal source applies a first input signal during a first time interval. A second signal source applies a second input signal during a second time interval. A detector detects a first parametric signal responsive to the first input signal passing through a portion of the subject having blood therein. The detector also detects a second parametric signal responsive to the second input signal passing through the portion of the subject. The detector generates a detector output signal responsive to the first and second parametric signals. A signal processor receives the detector output signal and demodulates the detector output signal by applying a first demodulation signal to a signal responsive to the detector output signal to generate a first output signal responsive to the first parametric signal. The signal processor applies a second demodulation signal to the signal responsive to the detector output signal to generate a second output signal responsive to the second parametric signal. The first demodulation signal and the second demodulation signal both include at least a first component having a first frequency and a first amplitude and a second component having a second frequency and a second amplitude. The second frequency is a harmonic of the first frequency. The second amplitude is related to the first amplitude to minimize crosstalk from the first parametric signal to the second output signal and to minimize crosstalk from the second parametric signal to the first output signal.

50. 发明授权

US06229856B1 Method and apparatus for demodulating signals in a pulse oximetry system 失效
公开(公告)号：US06229856B1
公开(公告)日：2001-05-08
申请号：US09058799
申请日：1998-04-10
申请人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
发明人： Mohamed K. Diab , Walter M. Weber , Ammar Al-Ali
IPC分类号： H03K900
CPC分类号： A61B5/7228 , A61B5/14551 , A61B5/14552 , A61B5/1495 , A61B5/7203 , A61B5/7217 , A61B5/7232 , A61B2560/0242 , A61B2562/0238 , H04J3/10 , H04J14/08
摘要： A method and an apparatus measure blood oxygenation in a subject. A first signal source applies a first input signal during a first time interval. A second signal source applies a second input signal during a second time interval. A detector detects a first parametric signal responsive to the first input signal passing through a portion of the subject having blood therein. The detector also detects a second parametric signal responsive to the second input signal passing through the portion of the subject. The detector generates a detector output signal responsive to the first and second parametric signals. A signal processor receives the detector output signal and demodulates the detector output signal by applying a first demodulation signal to a signal responsive to the detector output signal to generate a first output signal responsive to the first parametric signal. The signal processor applies a second demodulation signal to the signal responsive to the detector output signal to generate a second output signal responsive to the second parametric signal. The first demodulation signal and the second demodulation signal both include at least a first component having a first frequency and a first amplitude and a second component having a second frequency and a second amplitude. The second frequency is a harmonic of the first frequency. The second amplitude is related to the first amplitude to minimize crosstalk from the first parametric signal to the second output signal and to minimize crosstalk from the second parametric signal to the first output signal.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式