公开(公告)号：US08692200B2

公开(公告)日：2014-04-08

申请号：US12652912

申请日：2010-01-06

Applicant: Qian Tao ,  Gek Yong Ng ,  Richard Lum

Inventor： Qian Tao ,  Gek Yong Ng ,  Richard Lum

IPC: G01J5/20

CPC classification number: G01J1/46 ,  G01J1/28 ,  G01J5/08 ,  G01J5/0896 ,  G01J5/20

Abstract: Various embodiments of an optical proximity sensor and corresponding circuits and methods for measuring small AC signal currents arising from the detection of pulsed AC light signals emitted by a light emitter and reflected from an object to detected in the presence of larger ambient light DC current signals are disclosed. Circuits and corresponding methods are described that improve the dynamic range, sensitivity and detection range of an optical proximity sensor by cancelling the contributions of DC current signals arising from ambient light signals that otherwise would dominate the detected small AC signal currents. The DC signal cancellation occurs in a differential amplifier circuit before small AC signal currents are provided to an analog-to-digital converter. The circuits and methods may be implemented using conventional CMOS design and manufacturing techniques and processes.

Abstract translation: 光接近传感器的各种实施例以及相应的电路和方法，用于测量由在较大的环境光直流电流信号的存在下由光发射器发射并从物体反射以检测的脉冲AC光信号产生的小AC信号电流， 披露 描述了通过消除由环境光信号产生的DC电流信号的贡献来改善光学接近传感器的动态范围，灵敏度和检测范围的电路和相应方法，否则将主导检测到的小AC信号电流。 在将小的AC信号电流提供给模数转换器之前，在差分放大器电路中发生DC信号消除。 电路和方法可以使用传统的CMOS设计和制造技术和工艺来实现。

公开(公告)号：US20110163233A1

公开(公告)日：2011-07-07

申请号：US12652912

申请日：2010-01-06

Applicant: Gek Yong Ng ,  Qian Tao ,  Richard Lum

Inventor： Gek Yong Ng ,  Qian Tao ,  Richard Lum

IPC: G01J5/20

CPC classification number: G01J1/46 ,  G01J1/28 ,  G01J5/08 ,  G01J5/0896 ,  G01J5/20

Abstract: Various embodiments of an optical proximity sensor and corresponding circuits and methods for measuring small AC signal currents arising from the detection of pulsed AC light signals emitted by a light emitter and reflected from an object to detected in the presence of larger ambient light DC current signals are disclosed. Circuits and corresponding methods are described that improve the dynamic range, sensitivity and detection range of an optical proximity sensor by cancelling the contributions of DC current signals arising from ambient light signals that otherwise would dominate the detected small AC signal currents. The DC signal cancellation occurs in a differential amplifier circuit before small AC signal currents are provided to an analog-to-digital converter The circuits and methods may be implemented using conventional CMOS design and manufacturing techniques and processes.

Abstract translation: 光接近传感器的各种实施例以及相应的电路和方法，用于测量由在较大的环境光直流电流信号的存在下由光发射器发射并从物体反射以检测的脉冲AC光信号产生的小AC信号电流， 披露 描述了通过消除由环境光信号产生的DC电流信号的贡献来改善光学接近传感器的动态范围，灵敏度和检测范围的电路和相应方法，否则将主导检测到的小AC信号电流。 在将小的AC信号电流提供给模数转换器之前，在差分放大器电路中发生DC信号消除。电路和方法可以使用传统的CMOS设计和制造技术和工艺来实现。

公开(公告)号：US10298793B2

公开(公告)日：2019-05-21

申请号：US15763511

申请日：2016-01-25

Applicant: Hewlett-Packard Development Company, L.P. ,  Qian Tao

Inventor： Qian Tao

IPC: H04N1/00 ,  G03G15/00 ,  G03G21/16

Abstract: Examples of an imaging device (100) are described herein. In an example, the imaging device (100) includes a drive control assembly (110), a first drive assembly (106), a second drive assembly (108), a movable carriage (102), and a locking mechanism (112). The drive control assembly (110) can be used to regulate transmission of drive from an actuator (200) to the first drive assembly (106) and the second drive assembly (108). The locking mechanism (112) can lock the drive control assembly (110) in an engaged position with the first drive assembly (106) or the second drive assembly (108). The movable carriage (102) can actuate the locking mechanism (112) to lock the drive control assembly (110) in the engaged position.

公开(公告)号：US20180270377A1

公开(公告)日：2018-09-20

申请号：US15763511

申请日：2016-01-25

Applicant: Qian TAO ,  Hewlett-Packard Development Company, L.P.

Inventor： Qian Tao

IPC: H04N1/00

CPC classification number: H04N1/00652 ,  G03G15/602 ,  G03G15/6529 ,  G03G21/1647 ,  H04N1/00588

Abstract: Examples of an imaging device (100) are described herein. In an example, the imaging device (100) includes a drive control assembly (110), a first drive assembly (106), a second drive assembly (108), a movable carriage (102), and a locking mechanism (112). The drive control assembly (110) can be used to regulate transmission of drive from an actuator (200) to the first drive assembly (106) and the second drive assembly (108). The locking mechanism (112) can lock the drive control assembly (110) in an engaged position with the first drive assembly (106) or the second drive assembly (108). The movable carriage (102) can actuate the locking mechanism (112) to lock the drive control assembly (110) in the engaged position.

公开(公告)号：US20150179706A1

公开(公告)日：2015-06-25

申请号：US14137864

申请日：2013-12-20

Applicant: Noel Rocklein ,  Qian Tao ,  Zhe Song ,  Vishwanath Bhat

Inventor： Noel Rocklein ,  Qian Tao ,  Zhe Song ,  Vishwanath Bhat

IPC: H01L27/24 ,  H01L45/00

CPC classification number: H01L27/2481 ,  H01L27/2427 ,  H01L27/2463 ,  H01L45/06 ,  H01L45/12 ,  H01L45/1233 ,  H01L45/141 ,  H01L45/16 ,  H01L45/1675

Abstract: Embodiments of the present disclosure describe a liner for a phase change memory (PCM) array and associated techniques and configurations. In an embodiment, a substrate, an array of phase change memory (PCM) elements disposed on the substrate, wherein individual PCM elements of the array of PCM elements comprise a chalcogenide material and a liner disposed on sidewall surfaces of the individual PCM elements, wherein the liner comprises aluminum (Al), silicon (Si) and oxygen (O). Other embodiments may be described and/or claimed.

Abstract translation: 本公开的实施例描述了用于相变存储器（PCM）阵列和相关联的技术和配置的衬垫。 在一个实施例中，衬底，设置在衬底上的相变存储器（PCM）元件的阵列，其中PCM元件阵列的各个PCM元件包括硫族化物材料和设置在各个PCM元件的侧壁表面上的衬垫，其中 衬垫包括铝（Al），硅（Si）和氧（O）。 可以描述和/或要求保护其他实施例。

公开(公告)号：USD595347S1

公开(公告)日：2009-06-30

申请号：US29305086

申请日：2008-03-13

Applicant: Mylene A. K. Tjin Wong Joe ,  Kok Chai Chong ,  Qian Tao

Designer： Mylene A. K. Tjin Wong Joe ,  Kok Chai Chong ,  Qian Tao

公开(公告)号：USD681108S1

公开(公告)日：2013-04-30

申请号：US29418562

申请日：2012-04-18

Applicant: Khim Yam Lim ,  Jiajin Wu ,  Qian Tao ,  Nick Su

Designer： Khim Yam Lim ,  Jiajin Wu ,  Qian Tao ,  Nick Su

公开(公告)号：USD680163S1

公开(公告)日：2013-04-16

申请号：US29418748

申请日：2012-04-20

Applicant: Khim Yam Lim ,  Daniel L Barr ,  Joshua B Tamsky ,  Jiajin Wu ,  Qian Tao ,  Nick Su

Designer： Khim Yam Lim ,  Daniel L Barr ,  Joshua B Tamsky ,  Jiajin Wu ,  Qian Tao ,  Nick Su