公开(公告)号：WO2018195412A1

公开(公告)日：2018-10-25

申请号：PCT/US2018/028553

申请日：2018-04-20

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： LEE, Kyusang ,  KIM, Jeehwan ,  ALMANSOURI, Ali Ibraheem

IPC: H01L21/02 ,  H01L23/00 ,  H01L23/532

Abstract: A method of fabricating a photovoltaic (PV) device includes forming a release layer comprising a two-dimensional (2D) material on a first substrate having a first lattice constant and epitaxially growing a first PV layer on the release layer using the first substrate as a seed. The first PV layer has a second lattice constant substantially equal to the first lattice constant of the first substrate. The method also includes removing the first PV layer from the release layer and epitaxially growing a second PV layer on the release layer.

公开(公告)号：WO2018195391A1

公开(公告)日：2018-10-25

申请号：PCT/US2018/028513

申请日：2018-04-20

Applicant: TVISION INSIGHTS, INC.

Inventor： LIU, Yanfeng ,  SIDHU, Inderbir ,  RADKIEWICZ, Sara ,  SCHIFFMAN, Daniel ,  DAI, Wei ,  CRABTREE, Joseph

IPC: H04W4/02 ,  A63F13/21 ,  A63F13/211 ,  A63F13/79 ,  A63F13/212 ,  H04H60/33 ,  H04H60/45 ,  G01S1/02

Abstract: Conventional television audience measurements are made with diaries or by imaging the area in front of a television and trying to identify the people in the images watching television. Unfortunately, diaries are only accurate if the audience members record entries in them, and image-based techniques are intrusive. The present techniques address these problems by using a viewer's wearable device to measure a viewer's proximity to a television. The wearable device emits or receives low-power beacon signals; measurements of the signal strength are used to calculate the viewer's distance to the television. If the viewer is close enough to the television and the television is on, the viewer may be engaged with the content on the television. This system is simple, non-intrusive, and can used to measure engagement with each television in a multi-television household.

公开(公告)号：WO2018187681A1

公开(公告)日：2018-10-11

申请号：PCT/US2018/026445

申请日：2018-04-06

Applicant: HIDRATE, INC.

Inventor： NGUYEN, Ngoc ,  HAMBROCK, Alexander ,  IVERSON, Coleman

IPC: C02F1/32 ,  A47G19/22 ,  A47G23/16

Abstract: The present disclosure is directed to smart, portable, reusable liquid containers, or container assemblies, with ultraviolet (UV) sterilization capability. An example container assembly includes a container defining a cavity to hold liquid. A cap coupled to the container prevents the liquid from spilling out of the cavity. A liquid level sensor and a processor track the amount of fluid within the container. When they detect liquid added to the container, they trigger one or more UV light sources for sterilizing the liquid. A cap sensor in or on the container assembly senses if the cap is on the container and prevents UV light source operation when the cap is off. The processor may communicate with a remote device, e.g., a smart phone or server, via an antenna. Indicators in or on the container assembly notify a user that UV sterilization is recommended, UV sterilization is in progress, etc.

公开(公告)号：WO2018152202A1

公开(公告)日：2018-08-23

申请号：PCT/US2018/018180

申请日：2018-02-14

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： WALSH, Michael P. ,  ENGLUND, Dirk R.

IPC: G01N21/88 ,  G06F21/64 ,  G06K9/46 ,  G06K19/08 ,  G06T7/70 ,  H01L21/67

Abstract: A method of locating a substrate within a field of view of an imaging system includes acquiring an image of a first marker on a substrate in the field of view. The first marker has a first spatial pattern representing a position of the first marker relative to the substrate. The method also includes determining possible positions of the substrate based on the first spatial pattern and moving the substrate relative to the field of view based on the possible positions of the substrate. The method also includes acquiring an image of a second marker on the substrate in the field of view. The second marker has a second pattern representing a position of the second marker relative to the substrate. The method further includes determining the position of the substrate relative to the field of view based on the position of the second marker on the substrate.

公开(公告)号：WO2018039337A1

公开(公告)日：2018-03-01

申请号：PCT/US2017/048201

申请日：2017-08-23

Applicant: CANVAS TECHNOLOGY, INC.

Inventor： KEIVAN, Nima ,  FALQUEZ, Juan ,  HOFFMAN, Andrew ,  MCQUEEN, Jonathan

IPC: B25J9/16 ,  G01C22/00 ,  G01D1/00

Abstract: An autonomous cart moves products and materials in an industrial environment. It is different from conventional carts because it can navigate autonomously indoors or outdoors in dynamic environments where things change frequently. This autonomous cart uses state-of-the-art "dense" visual perception giving it unequalled and continuous awareness of its surroundings. With this it can operate at a cost, speed, level of safety and efficiency that has never been possible before. This robotic cart makes factories and warehouses more efficient and safer. It enables the movement of smaller batches of material more frequently, reduces the need for expensive conveyor systems, and helps eliminate dangerous and polluting fork trucks from indoor environments.

Abstract translation:

自动购物车在工业环境中移动产品和材料。 它不同于传统的手推车，因为它可以在室内或户外在动态变化的动态环境中自主导航。 这种自动购物车使用最先进的“密集” 视觉感受赋予它无与伦比的持续的环境意识。 有了它，它就可以以前所未有的成本，速度，安全和效率水平运行。 这款机器人手推车使工厂和仓库更加高效和安全。 它可以更频繁地移动较小批次的材料，减少对昂贵的输送系统的需求，并有助于消除室内环境中危险和污染的叉车。

公开(公告)号：WO2018017976A1

公开(公告)日：2018-01-25

申请号：PCT/US2017/043329

申请日：2017-07-21

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： CHAN, Ching-Kit ,  LEE, Patrick A. ,  LINDNER, Netanel ,  REFAEL, Gil ,  MA, Qiong ,  XU, Suyang ,  GEDIK, Nuh

IPC: H01L31/18 ,  H01L31/0224

CPC classification number: H01L49/003 ,  G01J1/0429 ,  G01J1/44 ,  G01J3/0224 ,  G01J5/10 ,  G01J2001/4446 ,  H01L31/0264

Abstract: The generation of photocurrent in an ideal two-dimensional Dirac spectrum is symmetry forbidden. In sharp contrast, a three-dimensional Weyl semimetal can generically support significant photocurrent due to the combination of inversion symmetry breaking and finite tilts of the Weyl spectrum. To realize this photocurrent, a noncentrosymmetric Weyl semimetal is coupled to a pair of electrodes and illuminated with circularly polarized light without any voltage applied to the Weyl semimetal. The wavelength of the incident light can range over tens of microns and can be adjusted by doping the Weyl semimetal to change its chemical potential.

Abstract translation: 在理想的二维狄拉克光谱中产生光电流是对称禁止的。 与此形成鲜明对比的是，由于Weyl光谱的反演对称性破缺和有限倾斜的组合，三维Weyl半金属一般可支持显着的光电流。 为了实现这种光电流，将非中心对称的Weyl半金属耦合到一对电极并用圆偏振光照射，而没有任何电压施加到Weyl半金属上。 入射光的波长可以在几十微米的范围内，并且可以通过掺杂Weyl半金属以改变其化学势来进行调节。

公开(公告)号：WO2017218899A1

公开(公告)日：2017-12-21

申请号：PCT/US2017/037885

申请日：2017-06-16

Applicant: CAHOY, Kerri Lynn ,  YOON, Hyosang ,  RIESING, Kathleen Michelle

Inventor： CAHOY, Kerri Lynn ,  YOON, Hyosang ,  RIESING, Kathleen Michelle

IPC: H04B10/00

CPC classification number: H04B10/118 ,  G01S3/786 ,  H04B10/615

Abstract: A portable optical ground station can track a satellite with an amateur telescope mounted on a two-axis gimbal. The telescope is aligned with respect to an inertial, Earth-fixed frame using a wide field of view star camera. Star cameras are accurate to the arcsecond level and have the advantage of providing orientation with a single measurement. Using multiple star sensor measurements at different gimbal angles, it is possible to calculate the alignment of the gimbals in the Earth-fixed frame and the alignment of the star sensor in the gimbal frame. Once the alignment is obtained, satellite tracking can be achieved with a known orbit and precise Earth rotation model, such as the International Earth Rotation and Reference System Service (IERS). This alignment procedure can be carried out in less than one hour, making it practical to move and deploy the portable ground station.

Abstract translation: 便携式光学地面站可以使用安装在双轴万向节上的业余望远镜来跟踪卫星。 使用宽视野星相机，望远镜与惯性地球固定框架对齐。 星相机精确到弧秒级，并具有提供单一测量方向的优点。 在不同的万向节角度下使用多个星形传感器测量，可以计算出固定在地球框架中的万向节的对准和万向节框架中星形传感器的对准。 一旦获得校准，就可以利用已知的轨道和精确的地球自转模型，如国际地球自转和参考系统服务（IERS），实现卫星跟踪。 这种对准程序可以在不到一个小时的时间内完成，使移动和部署便携式地面站成为现实。

公开(公告)号：WO2017176389A1

公开(公告)日：2017-10-12

申请号：PCT/US2017/020087

申请日：2017-03-01

Applicant: AKONIA HOLOGRAPHICS LLC

Inventor： AYRES, Mark R. ,  URNESS, Adam ,  ANDERSON, Kenneth E. ,  SCHLOTTAU, Friso

IPC: G03H1/26 ,  G02B5/18 ,  G02B5/32 ,  G02B27/01

Abstract: A holographic skew mirror has a reflective axis, or skew axis, that can be tilted with respect to its surface normal. Tilting the skew axis in two dimensions with respect to the surface normal expands the holographic skew mirror's possible field of view, e.g., to 60 or more. These additional angles can be accessed using an out-of-plane writing geometry with matched total internal grazing extension rotation (TIGER) prisms.

Abstract translation: 全息斜反射镜具有可相对于其表面法线倾斜的反射轴或倾斜轴。 使倾斜轴相对于表面法线倾斜二维，将全息倾斜镜的可能视场扩大到例如60或更多。 这些附加角度可以使用具有匹配的全内部放牧延伸旋转（TIGER）棱镜的平面外书写几何体来访问。

公开(公告)号：WO2017173289A3

公开(公告)日：2017-10-05

申请号：PCT/US2017/025409

申请日：2017-03-31

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  JOANNOPOULOS, John D.

Inventor： SOLJACIC, Marin ,  ZHEN, Bo ,  ANQUILLARE, Emma ,  YANG, Yi ,  HSU, Chia Wei

IPC: G02F1/133 ,  B82Y20/00 ,  B82Y30/00

Abstract: A transparent display includes nanoparticles having wavelength-selective scattering (e.g., resonant scattering) to preferentially scatter light at one or more discrete wavelengths so as to create images. The nanoparticles transmit light at other wavelengths to maintain a high transparency of the display. The nanoparticles are disposed in proximity to a thin film, which can enhance the scattering the process by reflecting light back to the nanoparticles for re-scattering or increasing the quality factor of the resonant scattering.

公开(公告)号：WO2017120469A1

公开(公告)日：2017-07-13

申请号：PCT/US2017/012531

申请日：2017-01-06

Applicant: TVISION INSIGHTS, INC. ,  SIDHU, Inderbir

Inventor： SIDHU, Inderbir ,  YANFENG, Liu ,  FU, Yun

IPC: H04H60/00 ,  H04H60/29 ,  H04H60/33 ,  H04H60/35 ,  H04H60/45 ,  H04N21/00

CPC classification number: H04N21/44218 ,  G06K9/00228 ,  G06K9/00281 ,  G06K9/00288 ,  G06K9/00302 ,  G06K9/00369 ,  G06K9/00597 ,  G06K9/2018 ,  G06K2009/00322 ,  H04H60/33 ,  H04H60/45 ,  H04H60/58 ,  H04N5/247 ,  H04N5/33 ,  H04N21/25883 ,  H04N21/42203 ,  H04N21/4223 ,  H04N21/437 ,  H04N21/4394 ,  H04N21/44008 ,  H04N21/44222

Abstract: A system for quantifying viewer engagement with a video playing on a display includes at least one camera to acquire image data of a viewing area in front of the display. A microphone acquires audio data emitted by a speaker coupled to the display. The system also includes a memory to store processor-executable instructions and a processor. Upon execution of the processor-executable instructions, the processor receives the image data and the audio data and determines an identity of the video displayed on the display based on the audio data. The processor also estimates a first number of people present in the viewing area and a second number of people engaged with the video. The processor further quantifies the viewer engagement of the video based on the first number of people and the second number of people.

Abstract translation: 用于量化观众对在显示器上播放的视频的参与度的系统包括至少一个相机以获取显示器前方的观看区域的图像数据。 麦克风获取由耦合到显示器的扬声器发出的音频数据。 该系统还包括存储处理器可执行指令的存储器和处理器。 在执行处理器可执行指令后，处理器接收图像数据和音频数据，并基于音频数据确定在显示器上显示的视频的标识。 处理器还估计出现在观看区域中的第一数量的人以及与该视频有关的第二数量的人。 处理器还基于第一人数和第二人数来量化视频的观众参与度。