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公开(公告)号：US06871084B1
公开(公告)日：2005-03-22
申请号：US09898402
申请日：2001-07-03
IPC分类号： A61B5/0408 , A61B5/0428 , A61B5/0478 , A61B5/04
CPC分类号： A61B5/0428 , A61B5/0408 , A61B5/0478
摘要： High-impedance optical electrodes modulate light in response to a life-form bio-potential and then converts the modulated light to an electrical signal that provides traditional EEG and EEC type output. Light splitters are used to provide multiple electrodes and an electronic reference source. A pilot tone is used to achieve high sensitivity and synchronize multiple units while an optical phase-shift modulator is used to reduce optical noise.
摘要翻译： 高阻抗光电极响应寿命形式的生物电位调制光，然后将调制的光转换成提供传统EEG和EEC类型输出的电信号。 分光器用于提供多个电极和电子参考源。 使用导频音来实现高灵敏度并同步多个单元，同时使用光相移调制器来降低光学噪声。
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公开(公告)号：US07447534B1
公开(公告)日：2008-11-04
申请号：US11085709
申请日：2005-03-21
IPC分类号： A61B5/04
CPC分类号： A61B5/0428 , A61B5/0408 , A61B5/0478
摘要： An electro-optic modulator modulates light in response to a life-form bio-potential to provide a bio-potential modulated light output. Modulation can be carried out as a result of capacitive coupling with the bio-potential. Phase, polarization, and intensity light modulation can be used. The light output can then be converted to electronic form for further processing. An optical power splitter is used to split light into multiple portions that are converted to electrical form. A pilot tone is used to achieve high sensitivity and synchronize multiple electro-optic modulators while phase modulation can be used to reduce noise in the bio-potential signal. Low-coherent light may be used as the light source. A housing is provided that can be hermetically-sealed and provided with electro-magnetic shielding.
摘要翻译： 电光调制器响应于生命形式的生物电位调制光以提供生物电位调制的光输出。 作为与生物电位的电容耦合的结果，可以进行调制。 可以使用相位，极化和强度光调制。 然后可以将光输出转换为电子表格以进行进一步处理。 光功率分配器用于将光分成转换成电形式的多个部分。 使用导频音来实现高灵敏度并同步多个电光调制器，同时可以使用相位调制来降低生物电位信号中的噪声。 低相干光可以用作光源。 提供可以被密封并且设置有电磁屏蔽的壳体。
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