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1. 发明授权

US10606560B1 Mitigating deterministic asymmetry in a random number generator 有权
公开(公告)号：US10606560B1
公开(公告)日：2020-03-31
申请号：US15975675
申请日：2018-05-09
申请人： Verily Life Sciences LLC
发明人： Nathan Pletcher , Robert Wiser , Alireza Dastgheib
IPC分类号： G06F7/58 , H03K3/84
摘要： Deterministic asymmetry in a random number generator can be mitigated by a circuit that includes a first inverter, a second inverter, a first capacitor, a second capacitor, a first switch, and a second switch. The first inverter can include a first input terminal and a first output terminal. The first inverter can have a first inverter threshold voltage. The second inverter can include a second input terminal and a second output terminal. The second inverter can have a second inverter threshold voltage. The first capacitor can be conductively coupled between the first output terminal and the second output terminal. The second capacitor can be conductively coupled between the second output terminal and the first input terminal. The first switch can be conductively coupled between the first input terminal and the first output terminal. The second switch can be conductively coupled between the second input terminal and the second output terminal.

2. 发明申请

US20190265515A1 FAILSAFE OPERATION OF EYE-MOUNTABLE DEVICE 审中-公开
公开(公告)号：US20190265515A1
公开(公告)日：2019-08-29
申请号：US16407836
申请日：2019-05-09
申请人： Verily Life Sciences LLC
发明人： Shungneng Lee , Daniel James Yeager , Jennifer Han , Nathan Pletcher , Brian Otis
IPC分类号： G02C7/08 , A61B5/00 , G02C7/04
摘要： An embodiment of an eye-mountable device includes an optical lens; an accommodation actuator to provide vision accommodation for the optical lens; a controller including an accommodation logic to select one of a plurality of vision accommodation states for the device, the plurality of vision accommodation states including at least a failsafe focal distance; and a failsafe subsystem including a system health detector, the system health detector to monitor for one or more operational indicators for the device, wherein the failsafe subsystem is to cause the device to transition to a failsafe mode upon the failsafe subsystem identifying a failure condition for the device, the failsafe mode includes setting the vision accommodation state to be the failsafe focal distance.

3. 发明授权

US10010270B2 Sensing system 有权
公开(公告)号：US10010270B2
公开(公告)日：2018-07-03
申请号：US13621512
申请日：2012-09-17
申请人： Verily Life Sciences LLC
发明人： Nathan Pletcher , Eric Teller , Babak Amirparviz
IPC分类号： A61B5/00 , G02C5/22 , G08B23/00 , A61B5/11 , G02C7/04 , A61B3/10 , A61B3/113
CPC分类号： A61B5/1103 , A61B3/10 , A61B3/113 , A61B5/6821 , A61B2503/22 , G02C7/04
摘要： This disclosure relates to systems and/or methods for detection of eye blinking using an active contact lens with multiple sensors and detecting orientation of the active contact lens.

4. 发明申请

US20180031867A1 DEVICE, SYSTEM AND METHOD FOR DETECTING OVERLAP OF AN OPHTHALMIC DEVICE BY AN EYELID 审中-公开
公开(公告)号：US20180031867A1
公开(公告)日：2018-02-01
申请号：US15221522
申请日：2016-07-27
申请人： Verily Life Sciences LLC
发明人： Shungneng Lee , Uei-ming Jow , Nathan Pletcher
IPC分类号： G02C7/08 , A61B3/113 , A61B3/00 , G02C7/04
CPC分类号： G02C7/083 , A61B3/0025 , A61B3/10 , A61B3/113 , G02C7/04 , G02C11/10 , G06F3/013
摘要： Techniques and mechanisms for sensing an overlap of an ophthalmic device by an eyelid of a user while the ophthalmic device is disposed in or on an eye of the user. In an embodiment, a circuit, disposed in a sealed enclosure of the ophthalmic device, interacts via an electromagnetic field with a film of tear fluid that is formed on the ophthalmic device. Based on the electromagnetic interaction, an oscillation characteristic of the circuit is evaluated. The oscillation characteristic varies with a resistance that is due in part to an eyelid of the user overlapping at least some portion of the ophthalmic device. Based on the evaluated oscillation characteristic, an amount of the eyelid overlap is determined by circuitry of the ophthalmic device. In another embodiment, the amount of eyelid overlap is used to determine one or more characteristics of gazing by the user's eye.

5. 发明授权

US09880401B2 Method, device and system for accessing an eye-mountable device with a user interface 有权
公开(公告)号：US09880401B2
公开(公告)日：2018-01-30
申请号：US14702528
申请日：2015-05-01
申请人： VERILY LIFE SCIENCES LLC
发明人： Nathan Pletcher , Robert F. Wiser , Daniel J. Yeager , Shung-neng Lee
IPC分类号： G02C7/08 , G02C7/04 , G02C11/00 , G06F3/01 , G06F3/0484 , G06F3/0481
CPC分类号： G02C7/083 , G02C7/04 , G02C11/10 , G06F3/013 , G06F3/04812 , G06F3/04842
摘要： Techniques and mechanisms for providing access to an accommodation-capable eye-mountable device via a user interface of an auxiliary device. In an embodiment, the user interface provides prompts for a user of the eye-mountable device to perform various viewing actions, where the eye-mountable device receives from the auxiliary device communications indicating respective times of the viewing actions. Based on the communications, the eye-mountable device generates configuration information indicating a correspondence of respective states of the eye-mountable device to respective characteristics of the viewing actions. In another embodiment, operational modes of the eye-mountable device are defined based on the configuration information.

6. 发明授权

US09735892B1 Employing optical signals for power and/or communication 有权
公开(公告)号：US09735892B1
公开(公告)日：2017-08-15
申请号：US14850704
申请日：2015-09-10
申请人： Verily Life Sciences LLC
发明人： Nathan Pletcher , Brian Otis
IPC分类号： G02C1/00 , H04B10/80 , G06K7/10 , A61B5/145 , A61B5/01 , A61B5/00 , G02C7/04 , G02C11/00
CPC分类号： H04B10/807 , A61B5/0017 , A61B5/01 , A61B5/14532 , A61B5/6821 , A61B5/72 , G02C7/04 , G02C11/10 , G06K7/10158
摘要： Apparatus, systems and methods employing contact lens sensors are provided. In some aspects, a contact lens includes a substrate that forms at least a portion of the body of the contact lens; an optical communication device disposed on or within the substrate; and a photodetector disposed on or within the substrate, wherein the photodetector harvests light emitted from a device and generates power from the harvested light. In some aspects, an apparatus comprises a tag having a circuit including: an optical communication device; and a photodetector that harvests light received and generates power from the harvested light. The tag can be disposed on or within a contact lens in various aspects.

7. 发明申请

US20170032154A1 Use of a Tag and Reader Antenna for a Simulated Theremin Effect 有权
标题翻译：使用标签和阅读器天线进行模拟的影响
公开(公告)号：US20170032154A1
公开(公告)日：2017-02-02
申请号：US15291228
申请日：2016-10-12
申请人： Verily Life Sciences LLC
发明人： Brian Otis , Nathan Pletcher
IPC分类号： G06K7/10
CPC分类号： G06K7/10217 , A61B5/6821 , A61B2560/0214 , A61B2562/08 , G06K7/10128 , G06K7/10316 , G06K7/10366
摘要： The present disclosure provides methods and apparatuses for providing an audible feedback based on a proximity or a link quality between an external reader and a tag. The external reader transmits power to the tag with a radio frequency electromagnetic signal. The tag may rectify the radio frequency electromagnetic signal and create a rectified voltage. This rectified voltage may be used to power various components of the tag. Once it receives power from the reader, the tag may communicate information back to the external reader. The information communicated back to the reader is communicated by modulating an antenna impedance of the tag. By modulating the impedance, the tag will backscatter radiation transmitted by the reader. The reader is able to create an audio output based on determining the proximity or link quality from the reader to the tag based on the backscatter radiation it receives from the tag.
摘要翻译：本公开提供了用于基于外部读取器和标签之间的接近度或链接质量来提供可听反馈的方法和装置。外部读取器使用射频电磁信号向标签发送电力。该标签可以改正射频电磁信号，并产生整流电压。该整流电压可用于为标签的各种部件供电。一旦从读取器接收电力，标签可以将信息传送回外部读取器。通过调制标签的天线阻抗来传送回到读取器的信息。通过调制阻抗，标签将反向散射读取器发射的辐射。读取器能够基于从标签接收的反向散射辐射确定从读取器到标签的接近度或链接质量来创建音频输出。

8. 发明授权

US10394057B2 Eyes closed interface 有权
公开(公告)号：US10394057B2
公开(公告)日：2019-08-27
申请号：US15425140
申请日：2017-02-06
申请人： Verily Life Sciences LLC
发明人： Thad Eugene Starner , Michael Patrick Johnson , Brian Otis , Max Benjamin Braun , Nathan Pletcher , Joshua N. Haddock
IPC分类号： G02C7/04 , G02C11/00 , G02C11/04 , A61B3/113 , G02C7/08 , A61B5/145 , A61B5/00 , A61B3/10 , A61B5/11 , A61B5/1477
摘要： An eye-mountable device including a lens including a polymeric material, the lens operable to be removably mounted over a corneal surface of an eye and to be compatible with a motion of an eyelid when the concave surface is so mounted; a sensor coupled to the lens and operable to provide output data indicative of whether an eyelid of an eye on which the lens is mounted is closed; and a display operable to display a light signal in response to the output data from the sensor that the eyelid is closed. A method including determining whether an eyelid of a wearer of an eye-mountable device is closed; and when an eyelid of a wearer is closed, sending a light signal from the eye-mountable device.

9. 发明授权

US10311259B2 Use of a tag and reader antenna for a simulated Theremin effect 有权
公开(公告)号：US10311259B2
公开(公告)日：2019-06-04
申请号：US15861836
申请日：2018-01-04
申请人： Verily Life Sciences LLC
发明人： Brian Otis , Nathan Pletcher
IPC分类号： G08B21/00 , G06K7/10 , A61B5/00
摘要： The present disclosure provides methods and apparatuses for providing an audible feedback based on a proximity or a link quality between an external reader and a tag. The external reader transmits power to the tag with a radio frequency electromagnetic signal. The tag may rectify the radio frequency electromagnetic signal and create a rectified voltage. This rectified voltage may be used to power various components of the tag. Once it receives power from the reader, the tag may communicate information back to the external reader. The information communicated back to the reader is communicated by modulating an antenna impedance of the tag. By modulating the impedance, the tag will backscatter radiation transmitted by the reader. The reader is able to create an audio output based on determining the proximity or link quality from the reader to the tag based on the backscatter radiation it receives from the tag.

10. 发明授权

US10256919B1 Employing optical signals for power and/or communication 有权
公开(公告)号：US10256919B1
公开(公告)日：2019-04-09
申请号：US15645486
申请日：2017-07-10
申请人： Verily Life Sciences LLC
发明人： Nathan Pletcher , Brian Otis
IPC分类号： G02C7/04 , H04B10/80 , A61B5/00 , A61B5/01 , G06K7/10 , G02C11/00 , A61B5/145
摘要： Apparatus, systems and methods employing contact lens sensors are provided. In some aspects, a contact lens includes a substrate that forms at least a portion of the body of the contact lens; an optical communication device disposed on or within the substrate; and a photodetector disposed on or within the substrate, wherein the photodetector harvests light emitted from a device and generates power from the harvested light. In some aspects, an apparatus comprises a tag having a circuit including: an optical communication device; and a photodetector that harvests light received and generates power from the harvested light. The tag can be disposed on or within a contact lens in various aspects.

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