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公开(公告)号：US10512407B2
公开(公告)日：2019-12-24
申请号：US14640281
申请日：2015-03-06
Applicant: Fitbit, Inc.
Inventor： Peter W. Richards , Thomas Samuel Elliot , Shelten Gee Jao Yuen
Abstract: One innovative aspect is directed to heart rate data collection. In some implementations, a circuit includes a light detector for generating a first electrical signal based on received light. The circuit includes a switching circuit, having a first and a second configuration, configured to receive a first voltage signal based on the first electrical signal and to switch among the first and the second configurations. The circuit includes first and second sampling circuits for sampling a value of the first voltage signal when the switching circuit is in the first configuration and second configurations, respectively. The circuit includes an ambient light cancellation circuit for generating a current signal to counter a first component of the first electrical signal when the first switching circuit is in the first configuration.
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公开(公告)号：US20180064345A1
公开(公告)日：2018-03-08
申请号：US15687768
申请日：2017-08-28
Applicant: Fitbit, Inc.
Inventor： Peter W. Richards
IPC: A61B5/00 , A61B5/024 , A61B5/1455
CPC classification number: A61B5/0082 , A61B5/02416 , A61B5/02427 , A61B5/02438 , A61B5/1455 , A61B5/14551 , A61B5/7214 , A61B2560/0247
Abstract: Some embodiments relate to a device, method, and/or computer-readable medium storing processor-executable process steps to remove a component of a signal corresponding to ambient light in a photoplethysmographic sensor device, including capturing a first detected light signal representing an ambient light at a first time, causing a light emitter to generate a source light signal driven at a first level, capturing a second detected light signal representing the source light signal after interacting with a user's tissue plus the first detected light signal, generating a first output signal based on the second detected light signal adjusted by the first detected light signal, causing the light emitter to generate a source light signal driven at a second level, capturing a third detected light signal representing the source light signal driven at the second level after interacting with the user's skin plus the first detected light signal, and generating a second output signal based on the third detected light signal adjusted by the first detected light signal.
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公开(公告)号：US09662053B2
公开(公告)日：2017-05-30
申请号：US15195911
申请日：2016-06-28
Applicant: Fitbit, Inc.
Inventor： Peter W. Richards , Thomas Samuel Elliot , Shelten Gee Jao Yuen
IPC: A61B5/02 , A61B5/1455 , A61B5/024 , A61B5/00 , A61B5/11 , H04W4/02 , A61B5/0205 , A61B5/145 , H04W4/00 , H04L29/08 , A61B5/021 , A61B5/08
CPC classification number: A61B5/14552 , A61B5/0002 , A61B5/002 , A61B5/0022 , A61B5/0205 , A61B5/021 , A61B5/02405 , A61B5/02416 , A61B5/02427 , A61B5/02433 , A61B5/02438 , A61B5/0816 , A61B5/1123 , A61B5/14532 , A61B5/14539 , A61B5/4812 , A61B5/4815 , A61B5/681 , A61B5/7203 , A61B5/7225 , A61B2562/185 , H04L67/12 , H04W4/027 , H04W4/80
Abstract: In some implementations, a device includes light emitter(s) to emit first light having a first wavelength and second light having a second wavelength. The device also includes light detector(s) to generate a first electrical signal while the light emitter emits the first light, a second electrical signal while the light emitter emits the second light, and a third electrical signal while the light emitter is not emitting light. The device also includes ambient light cancellation circuit(s) to generate a countering signal to counter a portion of one or both of the first and second electrical signals based on the third electrical signal. The device also includes analog to digital converter(s) to generate first and second digital signals based on values of the first and second electrical signals, respectively. The device further includes a controller to determine a saturation of peripheral oxygen metric based on the first and second digital signals.
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公开(公告)号：US20170095156A1
公开(公告)日：2017-04-06
申请号：US14873921
申请日：2015-10-02
Applicant: Fitbit, Inc.
Inventor： Peter W. Richards
CPC classification number: A61B5/0082 , A61B5/02416 , A61B5/02427 , A61B5/02438 , A61B5/1455 , A61B5/14551 , A61B5/7214 , A61B2560/0247
Abstract: Some embodiments relate to a device, method, and/or computer-readable medium storing processor-executable process steps to remove a component of a signal corresponding to ambient light in a photoplethysmographic sensor device, including capturing a first detected light signal representing an ambient light at a first time, causing a light emitter to generate a source light signal driven at a first level, capturing a second detected light signal representing the source light signal after interacting with a user's tissue plus the first detected light signal, generating a first output signal based on the second detected light signal adjusted by the first detected light signal, causing the light emitter to generate a source light signal driven at a second level, capturing a third detected light signal representing the source light signal driven at the second level after interacting with the user's skin plus the first detected light signal, and generating a second output signal based on the third detected light signal adjusted by the first detected light signal.
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25.发明申请公开(公告)号：US20170086691A1
公开(公告)日：2017-03-30
申请号：US15194504
申请日：2016-06-27
Applicant: Fitbit, Inc.
Inventor： Daniel J. Freschl , Chris H. Sarantos , Peter W. Richards , Anthony Alexander Cacace , Ritika Sahai , Lindsey Michelle Sunden
IPC: A61B5/024 , A61B5/08 , A61B5/1455 , A61B5/00 , A61B5/021
CPC classification number: A61B5/02433 , A61B5/021 , A61B5/02438 , A61B5/08 , A61B5/14552 , A61B5/681 , A61B2560/0462 , A61B2562/0238 , A61B2562/043 , A61B2562/166 , A61B2562/185
Abstract: Light-blocking structures for optical physiological parameter measurement devices or sensors are disclosed. Such optical physiological parameter measurement devices or sensors may include two photodetectors and a photo-emitter, as well as barrier walls that are interposed between the photo-emitter and the photodetectors. The barrier walls may have recesses that intermesh with surface profiles of protrusions that are attached to or part of a window of the optical physiological parameter measurement devices or sensors.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20170086690A1
公开(公告)日：2017-03-30
申请号：US15183687
申请日：2016-06-15
Applicant: Fitbit, Inc.
Inventor： Daniel J. Freschl , Chris H. Sarantos , Peter W. Richards , Anthony Alexander Cacace , Ritika Sahai , Lindsey Michelle Sunden
CPC classification number: A61B5/02433 , A61B5/021 , A61B5/02438 , A61B5/08 , A61B5/14552 , A61B5/681 , A61B2560/0462 , A61B2562/0238 , A61B2562/043 , A61B2562/166 , A61B2562/185
Abstract: Light-blocking structures for optical physiological parameter measurement devices or sensors are disclosed. Such structures may include barrier walls and protrusions that further include intermeshing surface profiles designed to promote light-blocking capabilities at small scales to offset potential gaps that may occur due to assembly tolerance stack-ups.
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公开(公告)号：US20160345881A1
公开(公告)日：2016-12-01
申请号：US15192447
申请日：2016-06-24
Applicant: Fitbit, Inc.
Inventor： Chris H. Sarantos , Peter W. Richards
IPC: A61B5/1455 , A61B5/024 , A61B5/00
CPC classification number: A61B5/14552 , A61B5/02427 , A61B5/02438 , A61B5/681 , A61B5/7278 , A61B2562/0233 , A61B2562/04 , A61B2562/046
Abstract: Blood oxygenation sensors including high-aspect-ratio photodetector elements are discussed herein. Such high-aspect-ratio photodetector elements may provide improved signal-strength-to-power-consumption performance for blood oxygenation sensors incorporating such photodetector elements as compared with blood oxygenation sensors incorporating, for example, square photodetector elements.
Abstract translation: 本文讨论了包括高纵横比光检测器元件的血氧信号传感器。 与包含例如方形光检测器元件的血氧检测器相比，这种高纵横比光检测器元件可以提供具有这样的光检测器元件的血氧检测器的改善的信号强度与功率消耗性能。
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公开(公告)号：US09402552B2
公开(公告)日：2016-08-02
申请号：US14954753
申请日：2015-11-30
Applicant: Fitbit, Inc.
Inventor： Peter W. Richards , Thomas Samuel Elliot , Shelten Gee Jao Yuen
CPC classification number: A61B5/14552 , A61B5/0002 , A61B5/002 , A61B5/0022 , A61B5/0205 , A61B5/021 , A61B5/02405 , A61B5/02416 , A61B5/02427 , A61B5/02433 , A61B5/02438 , A61B5/0816 , A61B5/1123 , A61B5/14532 , A61B5/14539 , A61B5/4812 , A61B5/4815 , A61B5/681 , A61B5/7203 , A61B5/7225 , A61B2562/185 , H04L67/12 , H04W4/027 , H04W4/80
Abstract: One innovative aspect is directed to heartrate data collection. In some implementations, a circuit includes a light detector for generating a detected signal based on received light. The circuit includes a switching circuit configured to receive a first signal based on the detected signal and to switch among a first and a second configuration. In some implementations, the circuit includes a first and a second sampling circuit for sampling a value of the first signal when the switching circuit is in the first configuration and second configurations, respectively. In some implementations, the circuit includes an ambient light cancellation circuit for countering a first component of the first signal while the first switching circuit is in the first configuration. In some implementations, the circuit includes an adjustable gain circuit for adjusting a gain of the first signal while the first switching circuit is in the first configuration.
Abstract translation: 一个创新的方面是针对心率数据收集。 在一些实施方式中，电路包括用于基于接收的光产生检测信号的光检测器。 电路包括：开关电路，被配置为基于检测到的信号接收第一信号，并在第一和第二配置之间切换。 在一些实现中，电路包括第一和第二采样电路，用于当开关电路分别处于第一配置和第二配置时对第一信号的值进行采样。 在一些实施方案中，电路包括环境光消除电路，用于在第一开关电路处于第一配置期间对抗第一信号的第一分量。 在一些实施方案中，电路包括可调增益电路，用于在第一开关电路处于第一配置期间调节第一信号的增益。
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公开(公告)号：US09392946B1
公开(公告)日：2016-07-19
申请号：US14724750
申请日：2015-05-28
Applicant: Fitbit, Inc.
Inventor： Chris H. Sarantos , Peter W. Richards
CPC classification number: A61B5/14552 , A61B5/02427 , A61B5/02438 , A61B5/681 , A61B5/7278 , A61B2562/0233 , A61B2562/04 , A61B2562/046
Abstract: Heart rate sensors including high-aspect-ratio photodetector elements are discussed herein. Such high-aspect-ratio photodetector elements may provide improved signal-strength-to-power-consumption performance for heart rate sensors incorporating such photodetector elements as compared with heart rate sensors incorporating, for example, square photodetector elements.
Abstract translation: 本文讨论了包括高纵横比光检测器元件的心率传感器。 与包含例如正方形光检测器元件的心率传感器相比，这种高纵横比光检测器元件可以提供与包含这种光电检测器元件的心率传感器相比改善的信号强度与功率消耗性能。
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公开(公告)号：US11998304B2
公开(公告)日：2024-06-04
申请号：US17123248
申请日：2020-12-16
Applicant: Fitbit, Inc.
Inventor： Jaclyn Leverett Wasson , Peter W. Richards , Lindsey Michelle Sunden , Corey Stephen O'Connor , Conor Joseph Heneghan , Xi Zhang , Hamed Vavadi , Chris Hanrahan Sarantos , Peter Colin Dess
IPC: A61B5/1455 , A61B5/00 , A61B5/0205 , A61B5/145 , G01N21/3577 , G01N33/49 , A61B5/021 , A61B5/024
CPC classification number: A61B5/0205 , A61B5/0002 , A61B5/14532 , A61B5/14535 , A61B5/14546 , A61B5/14552 , A61B5/6826 , G01N21/3577 , G01N33/4925 , A61B5/021 , A61B5/02438 , A61B2562/0219
Abstract: Disclosed herein is a ring-shaped wearable device for detecting biometrics with a light source and a photodetector directed towards a digit wearing the ring-shaped device. The ring can thus detect oxygen saturation of a wearer based on light transmitted through the wearer's finger. The ring can include power saving measures to extend the battery life. A motion sensor can help determine opportune moments for data collection such as when the wearer is still. The motion sensor can be used to remove noise from the data caused by motion. After data is collected or during data collection, the ring can wirelessly communicate the data to another portable electronic device such as a phone or watch.
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