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1. 发明授权

US08050730B2 Method and apparatus for eliminating interference in pulse oxygen measurement 失效
标题翻译：消除脉搏氧测量干扰的方法和装置
公开(公告)号：US08050730B2
公开(公告)日：2011-11-01
申请号：US11522396
申请日：2006-09-18
申请人： Xu Zhang , Xu Li , Shunan Li
发明人： Xu Zhang , Xu Li , Shunan Li
IPC分类号： A61B5/1455
CPC分类号： A61B5/14551 , A61B5/7239
摘要： The present invention discloses a method and apparatus for eliminating interference in pulse oxygen measurement. The method comprises the steps of: collecting a first wavelength light and a second wavelength light transmitting through the object to be measured and converting collected optic signals into electric signals to form a plethysmogram; processing the plethysmogram so as to normalize it, in order to decompose the normalized plethysmogram into a combination of an ideal plethysmogram and noise, and expand the ideal plethysmogram by using functions that can make up a complete orthonormal system; eliminating the noise in the plethysmogram through differential operation; and restoring the plethysmogram free of noise through integral operation for calculating oxygen saturation. The apparatus comprises a collecting module, a processing module, a noise eliminating module, and a restoring module. The method and apparatus suitable for the measurement of oxygen saturation under weak perfusion and movement conditions.
摘要翻译：本发明公开了一种消除脉搏氧测量干扰的方法和装置。该方法包括以下步骤：收集通过被测量物体透射的第一波长光和第二波长光，并将收集的光信号转换成电信号以形成体积图; 处理体积图以使其正常化，以将归一化的体积描记图分解为理想体积描记图和噪声的组合，并通过使用可构成完整的正交系统的功能来扩展理想的体积描记图; 通过差速操作消除体积描记中的噪音; 并通过用于计算氧饱和度的积分操作恢复无噪声的体积图。该装置包括收集模块，处理模块，噪声消除模块和恢复模块。适用于在弱灌注和运动条件下测量氧饱和度的方法和装置。

2. 发明申请

US20070149872A1 Method and apparatus for eliminating interference in pulse oxygen measurement 失效
标题翻译：消除脉搏氧测量干扰的方法和装置
公开(公告)号：US20070149872A1
公开(公告)日：2007-06-28
申请号：US11522396
申请日：2006-09-18
申请人： Xu Zhang , Xu Li , Shunan Li
发明人： Xu Zhang , Xu Li , Shunan Li
IPC分类号： A61B5/00
CPC分类号： A61B5/14551 , A61B5/7239
摘要： The present invention discloses a method and apparatus for eliminating interference in pulse oxygen measurement. The method comprises the steps of: collecting a first wavelength light and a second wavelength light transmitting through the object to be measured and converting collected optic signals into electric signals to form a plethysmogram; processing the plethysmogram so as to normalize it, in order to decompose the normalized plethysmogram into a combination of an ideal plethysmogram and noise, and expand the ideal plethysmogram by using functions that can make up a complete orthonormal system; eliminating the noise in the plethysmogram through differential operation; and restoring the plethysmogram free of noise through integral operation for calculating oxygen saturation. The apparatus comprises a collecting module, a processing module, a noise eliminating module, and a restoring module. The method and apparatus suitable for the measurement of oxygen saturation under weak perfusion and movement conditions.
摘要翻译：本发明公开了一种消除脉搏氧测量干扰的方法和装置。该方法包括以下步骤：收集通过被测量物体透射的第一波长光和第二波长光，并将收集的光信号转换成电信号以形成体积图; 处理体积图以使其正常化，以将归一化的体积描记图分解为理想体积描记图和噪声的组合，并通过使用可构成完整的正交系统的功能来扩展理想的体积描记图; 通过差速操作消除体积描记中的噪音; 并通过用于计算氧饱和度的积分操作恢复无噪声的体积图。该装置包括收集模块，处理模块，噪声消除模块和恢复模块。适用于在弱灌注和运动条件下测量氧饱和度的方法和装置。

3. 发明授权

US07970460B2 Method and apparatus for suppressing power frequency common mode interference 有权
标题翻译：用于抑制功率频率共模干扰的方法和装置
公开(公告)号：US07970460B2
公开(公告)日：2011-06-28
申请号：US12711101
申请日：2010-02-23
申请人： Shunan Li , Xiaoyu Wu
发明人： Shunan Li , Xiaoyu Wu
IPC分类号： A61B5/04
CPC分类号： A61B5/04004
摘要： An apparatus for suppressing power frequency common mode interference in a bioelectrical signal measuring system includes a driving circuit configured to amplify and change the phase of a common mode interference signal to produce a first driving signal, wherein the common mode interference signal is extracted from a plurality of first electrodes attached to a patient; phase compensating and processing circuitry electrically connected to the driving circuit for receiving the first driving signal, the phase compensating and processing circuitry configured to produce a second driving signal by phase-compensating the first driving signal based on a characteristic value of power frequency interference in a bioelectrical signal acquired through the plurality of first electrodes; and a switch to receive the first driving signal and the second driving signal, the switch configured to selectively switch between providing the first driving signal and providing the second driving signal to a second electrode attached to the patient.
摘要翻译：用于抑制生物电信号测量系统中的功率频率共模干扰的装置包括：驱动电路，被配置为放大和改变共模干涉信号的相位以产生第一驱动信号，其中，共模干扰信号从多个附接到患者的第一电极; 电连接到用于接收第一驱动信号的驱动电路的相位补偿和处理电路，该相位补偿和处理电路经配置以通过基于在第一驱动信号中的功率频率干扰的特征值相位补偿来产生第二驱动信号通过所述多个第一电极获取的生物电信号; 以及用于接收第一驱动信号和第二驱动信号的开关，所述开关被配置为在提供第一驱动信号之间选择性地切换并且将第二驱动信号提供给附接到患者的第二电极。

4. 发明申请

US20100191509A1 METHOD AND APPARATUS FOR SUPPRESSING POWER FREQUENCY COMMON MODE INTERFERENCE 有权
标题翻译：用于抑制功率频率共模干扰的方法和装置
公开(公告)号：US20100191509A1
公开(公告)日：2010-07-29
申请号：US12711101
申请日：2010-02-23
申请人： Shunan Li , Xiaoyu WU
发明人： Shunan Li , Xiaoyu WU
IPC分类号： G06F15/00 , A61B5/04
CPC分类号： A61B5/04004
摘要： An apparatus for suppressing power frequency common mode interference in a bioelectrical signal measuring system includes a driving circuit configured to amplify and change the phase of a common mode interference signal to produce a first driving signal, wherein the common mode interference signal is extracted from a plurality of first electrodes attached to a patient; phase compensating and processing circuitry electrically connected to the driving circuit for receiving the first driving signal, the phase compensating and processing circuitry configured to produce a second driving signal by phase-compensating the first driving signal based on a characteristic value of power frequency interference in a bioelectrical signal acquired through the plurality of first electrodes; and a switch to receive the first driving signal and the second driving signal, the switch configured to selectively switch between providing the first driving signal and providing the second driving signal to a second electrode attached to the patient.
摘要翻译：用于抑制生物电信号测量系统中的功率频率共模干扰的装置包括：驱动电路，被配置为放大和改变共模干涉信号的相位以产生第一驱动信号，其中，共模干扰信号从多个附接到患者的第一电极; 电连接到用于接收第一驱动信号的驱动电路的相位补偿和处理电路，该相位补偿和处理电路经配置以通过基于在第一驱动信号中的功率频率干扰的特征值相位补偿来产生第二驱动信号通过所述多个第一电极获取的生物电信号; 以及用于接收第一驱动信号和第二驱动信号的开关，所述开关被配置为在提供第一驱动信号之间选择性地切换并且将第二驱动信号提供给附接到患者的第二电极。

5. 发明授权

US07684853B2 Method and apparatus for suppressing power frequency common mode interference 有权
标题翻译：用于抑制功率频率共模干扰的方法和装置
公开(公告)号：US07684853B2
公开(公告)日：2010-03-23
申请号：US11316190
申请日：2005-12-22
申请人： Shunan Li , Xiaoyu Wu
发明人： Shunan Li , Xiaoyu Wu
IPC分类号： A61B5/04
CPC分类号： A61B5/04004
摘要： A method for suppressing power frequency common mode interference comprises the following steps of: receiving a bioelectrical signal from a living body on examination by phase compensating and processing circuitry; analyzing the characteristics of the bioelectrical signal and determining a phase compensation amount by the phase compensating and processing circuitry; performing a corresponding time delay processing on an amplified signal outputted by the driving circuit; and providing the delay signal to the living body on examination.
摘要翻译：一种用于抑制功率频率共模干扰的方法包括以下步骤：通过相位补偿和处理电路从生物体接收生物电信号; 分析生物电信号的特性，并通过相位补偿和处理电路确定相位补偿量; 对由驱动电路输出的放大信号进行相应的时间延迟处理; 并在检查时向生物体提供延迟信号。

6. 发明申请

US20070087703A1 Method and apparatus for suppressing power frequency common mode interference 有权
公开(公告)号：US20070087703A1
公开(公告)日：2007-04-19
申请号：US11316190
申请日：2005-12-22
申请人： Shunan Li , Xiaoyu Wu
发明人： Shunan Li , Xiaoyu Wu
IPC分类号： H04B1/04
CPC分类号： A61B5/04004
摘要： A method and an apparatus for suppressing power frequency common mode interference which are used in a bioelectrical signal measuring system comprising a common mode interference signal extracting circuit and a driving circuit connected to the extracting circuit are provided. The driving circuit changes a phase of a common mode interference signal and amplifies the common mode interference signal, so as to output two-way amplified signals, wherein one amplified signal is selectively outputted to a living body on examination. In particular, the apparatus further includes phase compensating and processing means for receiving both a bioelectrical signal from the living body on examination and the other amplified signal outputted from the driving circuit, determining a phase compensation amount of the other amplified signal outputted from the driving circuit according to a characteristic value of the power frequency interference in the bioelectrical signal so as to phase-compensate the other amplified signal outputted from the driving circuit, and selectively outputting the phase-compensated amplified signal to the living body on examination. The method for suppressing power frequency common mode interference comprises the following steps of: receiving a bioelectrical signal from a living body on examination by phase compensating and processing means; analyzing the characteristic of the bioelectrical signal and determining a phase compensation amount by the phase compensating and processing means; performing a corresponding time delay processing on an amplified signal outputted by the driving circuit; and providing the delay signal to the living body on examination. According to this invention, the capability of the circuit for suppressing power frequency common mode interference is getting improved, and the stability of the analog circuit system and the phase-frequency characteristic of the circuit are maintained. This contributes to the improvement of the quality of the sampled bioelectrical signals.

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