公开(公告)号：US20160357265A1

公开(公告)日：2016-12-08

申请号：US15117692

申请日：2014-02-10

Applicant: APPLE INC.

Inventor： Ehsan MAANI

IPC: G06F3/01 ,  G06F1/16 ,  G06F3/00

Abstract: A wearable device with an optical sensor is disclosed that can be used to recognize gestures of a user wearing the device. Light sources can be positioned on the back or skin-facing side of a wearable device, and an optical sensor can be positioned near the light sources. During operation, light can be emitted from the light sources and sensed using the optical sensor. Changes in the sensed light can be used to recognize user gestures. For example, light emitted from a light source can reflect off a wearer's skin, and the reflected light can be sensed using the optical sensor. When the wearer gestures in a particular way, the reflected light can change perceptibly due to muscle contraction, device shifting, skin stretching, or the distance changing between the optical sensor and the wearer's skin. Recognized gestures can be interpreted as commands for interacting with the wearable device.

Abstract translation: 公开了一种具有光学传感器的可穿戴设备，其可用于识别佩戴该设备的用户的手势。 光源可以位于可穿戴设备的背面或面向皮肤的一侧，并且光学传感器可以位于光源附近。 在操作期间，可以从光源发射光并使用光学传感器进行感测。 感测光的变化可用于识别用户手势。 例如，从光源发射的光可以反射穿戴者的皮肤，并且可以使用光学传感器来感测反射的光。 当佩戴者以特定的方式进行手势时，由于肌肉收缩，装置移动，皮肤拉伸或光学传感器与穿着者的皮肤之间的距离变化，反射光可以感知地变化。 识别的手势可以解释为与可穿戴设备交互的命令。

公开(公告)号：US20180110469A1

公开(公告)日：2018-04-26

申请号：US15848602

申请日：2017-12-20

Applicant: Apple Inc.

Inventor： Ehsan MAANI ,  Daniel J. Culbert ,  Ian R. Shapiro

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/11 ,  A61B5/0205

CPC classification number: A61B5/721 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/02416 ,  A61B5/11 ,  A61B5/725 ,  A61B5/7257 ,  A61B5/7278 ,  A61B2560/0493 ,  A61B2562/0219

Abstract: A device for determining a heart rate of a user has a PPG sensor and an accelerometer to compensate for acceleration artifacts within the PPG signal. The device transforms time domain PPG and accelerometer signals into the frequency domain using a Fourier transformation and utilizes the Fourier coefficient magnitudes as indicative of the probability of candidate heart rate values. Candidate heart rate values are determined at sampling times over a time interval and a most probable heart rate path during the time interval is determined using a reward/penalty algorithm.

公开(公告)号：US20160051201A1

公开(公告)日：2016-02-25

申请号：US14466890

申请日：2014-08-22

Applicant: APPLE INC.

Inventor： Ehsan MAANI ,  Daniel J. CULBERT ,  Ian R. SHAPIRO

IPC: A61B5/00 ,  A61B5/11 ,  A61B5/0205

CPC classification number: A61B5/721 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/02416 ,  A61B5/11 ,  A61B5/725 ,  A61B5/7257 ,  A61B5/7278 ,  A61B2560/0493 ,  A61B2562/0219

Abstract: A device for determining a heart rate of a user has a PPG sensor and an accelerometer to compensate for acceleration artifacts within the PPG signal. The device transforms time domain PPG and accelerometer signals into the frequency domain using a Fourier transformation and utilizes the Fourier coefficient magnitudes as indicative of the probability of candidate heart rate values. Candidate heart rate values are determined at sampling times over a time interval and a most probable heart rate path during the time interval is determined using a reward/penalty algorithm.

Abstract translation: 用于确定用户心率的装置具有PPG传感器和加速度计以补偿PPG信号内的加速度伪影。 该设备使用傅里叶变换将时域PPG和加速度计信号变换到频域，并利用傅立叶系数幅度来表示候选心率值的概率。 在时间间隔内的采样时间确定候选心率值，并且使用奖励/惩罚算法确定在时间间隔期间最可能的心率路径。