公开(公告)号：US20050001153A1

公开(公告)日：2005-01-06

申请号：US10609687

申请日：2003-07-01

Applicant: James Lauffenburger ,  Gil Afriat ,  Robert Rotzoll

Inventor： James Lauffenburger ,  Gil Afriat ,  Robert Rotzoll

IPC: G06F3/03 ,  G06F3/033 ,  G06M7/00

CPC classification number: G06F3/0317

Abstract: There is described a method of operating an optical motion sensing device comprising a light source and a photodetector device, the method comprising the steps of a) illuminating a surface portion with radiation by means of the light source, b) detecting radiation reflected from the illuminated surface portion by means of the photodetector device, c) detecting and measuring displacement with respect to the illuminated surface portion; and d) outputting motion reports that are each representative of a magnitude of the detected displacement, steps a) to d) defining a flash period and being repeated at a selected flash rate. The method further comprises the steps of e) comparing the magnitude of the detected displacement with a determined displacement threshold, and f) increasing or decreasing the flash rate if the magnitude of the detected displacement is respectively greater or lower than the displacement threshold. There is also described an optical motion sensing device implementing this method.

Abstract translation: 描述了一种操作包括光源和光电检测器装置的光学运动感测装置的方法，所述方法包括以下步骤：a）利用光源照射具有辐射的表面部分，b）检测从所述光源 表面部分，c）检测和测量相对于照射的表面部分的位移; 以及d）输出每个表示检测到的位移大小的运动报告，步骤a）至d）限定闪光周期并以选定的闪光速率重复。 该方法还包括以下步骤：e）将检测到的位移的大小与确定的位移阈值进行比较，以及f）如果检测到的位移的大小分别大于或低于位移阈值，则增加或减小闪速。 还描述了实现该方法的光学运动感测装置。

公开(公告)号：US20080136779A1

公开(公告)日：2008-06-12

申请号：US11609609

申请日：2006-12-12

Applicant: Sylvain Grosjean ,  Michel Willemin ,  James Harold Lauffenburger ,  Gil Afriat ,  Kevin Scott Buescher ,  Lawrence Bieber

Inventor： Sylvain Grosjean ,  Michel Willemin ,  James Harold Lauffenburger ,  Gil Afriat ,  Kevin Scott Buescher ,  Lawrence Bieber

IPC: G06F3/033 ,  G06F3/038

CPC classification number: G06F3/0317

Abstract: The invention concerns an optical pointing device comprising a coherent light source for illuminating a surface portion with radiation, a driver of the coherent light source for controlling coherent light emissions, a photodetector device responsive to radiation reflected from the illuminated surface portion, processing means for determining, based on the photodetector device response, a measurement of relative motion between the optical pointing device and the illuminated portion of the surface, wherein the coherent light source driver is a fault-tolerant driver comprising redundant power control means for limiting the output power of coherent light emissions.

Abstract translation: 本发明涉及一种光学指向装置，其包括用于用辐射照射表面部分的相干光源，用于控制相干光发射的相干光源的驱动器，响应于从被照射的表面部分反射的辐射的光电检测器装置，用于确定 基于所述光电检测器装置响应，测量所述光学指向装置与所述表面的被照亮部分之间的相对运动，其中所述相干光源驱动器是容错驱动器，其包括用于限制相干的输出功率的冗余功率控制装置 轻量化排放。

公开(公告)号：US20070262242A1

公开(公告)日：2007-11-15

申请号：US11383258

申请日：2006-05-15

Applicant: Andre Grandjean ,  Gil Afriat ,  Lawrence Bieber ,  Kevin Buescher ,  James Lauffenburger

Inventor： Andre Grandjean ,  Gil Afriat ,  Lawrence Bieber ,  Kevin Buescher ,  James Lauffenburger

IPC: H01J40/14 ,  G01J1/44 ,  H03F3/08

CPC classification number: G06F3/0317

Abstract: A method for operating an optical sensing device having a light source and a photodetector device with at least one photosensitive element, said method comprising the steps of: (i) illuminating a surface portion with radiation by means of said light source; (ii) detecting radiation reflected from the illuminated surface portion with said at least one photosensitive element; (iii)while said surface portion is being illuminated, integrating an output signal of said at least one photosensitive element over time; (iv)comparing the output signal integration level with a first integration reference level during integration; (v) interrupting said integration step (iii) if said output signal integration level has reached said first integration reference level, or getting back to comparison step (iv) until a first integration period has elapsed if said output signal integration level has not reached said first integration reference level, and wherein said method further comprises the steps of: (vi) comparing said output signal integration level with a second integration reference level smaller than said first integration reference level, after said first integration period has elapsed; (vii) interrupting said integration step (iii), if said output signal integration level has reached at least said second integration reference level.

Abstract translation: 一种用于操作具有光源的光学感测装置和具有至少一个感光元件的光电检测器装置的方法，所述方法包括以下步骤：（i）利用所述光源照射具有辐射的表面部分; （ii）用所述至少一个感光元件检测从被照射的表面部分反射的辐射; （iii）当所述表面部分被照亮时，对所述至少一个感光元件的输出信号随时间进行积分; （iv）在整合期间将输出信号积分级别与第一积分参考电平进行比较; （v）如果所述输出信号积分电平已经达到所述第一积分参考电平，则中断所述积分步骤（iii），或者如果所述输出信号积分电平尚未达到所述第一积分参考电平，则返回到比较步骤（iv）直到经过第一积分周期 并且其中所述方法还包括以下步骤：（vi）在所述第一积分周期已经过去之后，将所述输出信号积分电平与小于所述第一积分参考电平的第二积分参考电平进行比较; （vii）如果所述输出信号积分级别已经达到至少所述第二积分参考水平，则中断所述积分步骤（iii）。

公开(公告)号：US20070171204A1

公开(公告)日：2007-07-26

申请号：US11262970

申请日：2005-11-01

Applicant: Gil Afriat ,  James Lauffenburger ,  Kevin Buescher

Inventor： Gil Afriat ,  James Lauffenburger ,  Kevin Buescher

IPC: G09G5/08

CPC classification number: G06F3/0317 ,  G06F1/3259 ,  Y02D10/155

Abstract: A method for operating an optical motion sensing device comprising a light source and a photodetector device, said method comprises the steps of: a) illuminating a surface portion with radiation by means of the light source; b) detecting radiation patterns reflected from the illuminated surface portion by means of the photodetector device; c) extracting motion features from the detected radiation patterns by comparing light intensity between neighbouring pixels of said photodetector device by means of comparators with a determined hysteresis threshold; d) detecting and measuring displacement with respect to the illuminated surface portion based on said extracted motion features; e) determining whether the optical motion sensing device is moving or at rest; f) adjusting said determined hysteresis threshold of the comparators between at least a low and a high hysteresis values, consisting in selecting said low hysteresis value when the optical motion sensing device is moving and selecting said high hysteresis value when the optical motion sensing device is at rest.

Abstract translation: 一种用于操作包括光源和光电检测器装置的光学运动感测装置的方法，所述方法包括以下步骤：a）借助于光源照射具有辐射的表面部分; b）借助于光电检测器装置检测从被照射的表面部分反射的辐射图; c）通过利用具有确定的滞后阈值的比较器来比较所述光电检测器件的相邻像素之间的光强度，从检测到的辐射图中提取运动特征; d）基于所述提取的运动特征来检测和测量相对于被照射表面部分的位移; e）确定光学运动感测装置是移动还是静止; f）在至少一个低磁滞值和高磁滞值之间调整所述确定的比较器的滞后阈值，其包括当光学运动感测装置正在移动时选择所述低滞后值，并且当光学运动感测装置处于 休息。

公开(公告)号：US07161586B2

公开(公告)日：2007-01-09

申请号：US10609687

申请日：2003-07-01

Applicant: James Harold Lauffenburger ,  Gil Afriat ,  Robert R. Rotzoll

Inventor： James Harold Lauffenburger ,  Gil Afriat ,  Robert R. Rotzoll

IPC: G09G5/08 ,  G09G5/00 ,  H01L31/14

CPC classification number: G06F3/0317

Abstract: There is described a method of operating an optical motion sensing device comprising a light source and a photodetector device, the method comprising the steps of a) illuminating a surface portion with radiation by means of the light source, b) detecting radiation reflected from the illuminated surface portion by means of the photodetector device, c) detecting and measuring displacement with respect to the illuminated surface portion; and d) outputting motion reports that are each representative of a magnitude of the detected displacement, steps a) to d) defining a flash period and being repeated at a selected flash rate. The method further comprises the steps of e) comparing the magnitude of the detected displacement with a determined displacement threshold, and f) increasing or decreasing the flash rate if the magnitude of the detected displacement is respectively greater or lower than the displacement threshold. There is also described an optical motion sensing device implementing this method.

Abstract translation: 描述了一种操作包括光源和光电检测器装置的光学运动感测装置的方法，所述方法包括以下步骤：a）利用光源照射具有辐射的表面部分，b）检测从所述光源 表面部分，c）检测和测量相对于照射的表面部分的位移; 以及d）输出每个表示检测到的位移大小的运动报告，步骤a）至d）限定闪光周期并以选定的闪光速率重复。 该方法还包括以下步骤：e）将检测到的位移的大小与确定的位移阈值进行比较，以及f）如果检测到的位移的大小分别大于或低于位移阈值，则增加或减小闪速。 还描述了实现该方法的光学运动感测装置。

公开(公告)号：US20070001840A1

公开(公告)日：2007-01-04

申请号：US11170071

申请日：2005-06-30

Applicant: Gil Afriat

Inventor： Gil Afriat

IPC: G08B1/08

CPC classification number: G06F1/3259 ,  G06F1/3215 ,  G06F3/0383 ,  Y02D10/155

Abstract: There is described a method for waking up an optical sensing device from a sleep mode to a motion detection mode, the optical motion sensing device comprising a light source, a photodetector device, a motion sensing unit and a control unit, the motion detection mode being defined as a mode during which motion is detected between the optical motion sensing device and a portion of a surface illuminated by the light source at a defined flash rate being set between minimum and maximum flash rate values, the motion sensing unit sending motion reports to the control unit, the sleep mode being defined as a mode during which the flash rate is set to a low flash rate value being lower than the minimum flash rate value and no motion report being reported from the sensing unit to the control unit, wherein the method comprises during the sleep mode the steps of (i) illuminating said surface portion with radiation by means of the light source at the low flash rate value; (ii) detecting a radiation pattern reflected from the illuminated surface portion by means of the photodetector device; (iii) detecting occurrence of a loss-of-tracking event between two successive reflected radiation patterns detected by the photodetector device indicating the user has returned; (iv) increasing the flash rate if an occurrence of the loss-of-tracking event is detected; (v) entering into said motion detection mode.

公开(公告)号：US07122781B2

公开(公告)日：2006-10-17

申请号：US10497020

申请日：2002-12-03

Applicant: Robert R. Rotzoll ,  Kevin Scott Buescher ,  James Harold Lauffenburger ,  Gil Afriat

Inventor： Robert R. Rotzoll ,  Kevin Scott Buescher ,  James Harold Lauffenburger ,  Gil Afriat

IPC: H01J40/14

CPC classification number: G06F3/0317

Abstract: There is described a method as well as a device for motion detect ion in an optical sensing device, such as an optical mouse. A photodetector array comprising a plurality of pixels is used to detect successive light intensity patterns of an illuminated portion of a surface with respect to which a measurement of relative motion is to be determined. Light intensity between neighbouring pixels is compared in order to determine edge direction data descriptive of light intensity differences between the pixels, such data including (i) a first edge condition, or positive edge, defined as a condition wherein light intensity of a first pixel is less than light intensity of a second pixel, and (ii) a second edge condition, or negative edge, defined as a condition wherein light intensity of the first pixel is greater than light intensity of the second pixel. Through comparison of this edge direction data with edge direction data determined from a previous illumination (or by comparing data extracted from this edge direction data) a measurement of the relative motion of the optical sensing device with respect to the illuminated portion of the surface is determined.

Abstract translation: 描述了一种方法以及用于诸如光学鼠标的光学感测装置中的用于运动检测离子的装置。 包括多个像素的光电检测器阵列被用于检测将要确定相对运动的测量的表面的被照射部分的连续光强度图案。 比较相邻像素之间的光强度，以便确定描述像素之间的光强度差的边缘方向数据，这些数据包括（i）第一边缘条件或正边缘，被定义为第一像素的光强度为 小于第二像素的光强度，以及（ii）第二边缘条件或负边缘，被定义为第一像素的光强度大于第二像素的光强度的条件。 通过将该边缘方向数据与从先前照明确定的边缘方向数据（或通过比较从该边缘方向数据提取的数据进行比较）的比较来确定光学传感装置相对于表面的照射部分的相对运动的测量 。

公开(公告)号：US20060226345A1

公开(公告)日：2006-10-12

申请号：US11101563

申请日：2005-04-08

Applicant: Gil Afriat

Inventor： Gil Afriat

IPC: H01J40/14

CPC classification number: G06F3/0317

Abstract: There is described a method for measuring relative motion between an illuminated portion of a surface and an optical sensing device comprising a photodetector array, which includes a plurality of rows and columns of pixels respectively aligned along first and second axes, the method allowing to determine a measurement of the relative motion between the optical sensing device and the illuminated portion of the surface based on a comparison of motion features extracted from light intensity patterns obtained with the photodetector array, wherein said method includes a checking process between two light intensity patterns for discarding erroneous motion features due to the surface design.

Abstract translation: 描述了一种用于测量表面的被照射部分和光学感测装置之间的相对运动的方法，所述光学感测装置包括光电检测器阵列，所述光电检测器阵列包括分别沿着第一和第二轴线对准的多个行和列的像素，所述方法允许确定 基于从由光电检测器阵列获得的光强度图案中提取的运动特征的比较，光学感测装置与照射部分之间的相对运动的测量，其中所述方法包括两个光强度图案之间的检查过程，以丢弃错误的 由于表面设计，运动特征。

公开(公告)号：US20050001142A1

公开(公告)日：2005-01-06

申请号：US10609686

申请日：2003-07-01

Applicant: James Lauffenburger ,  Gil Afriat ,  Robert Rotzoll

Inventor： James Lauffenburger ,  Gil Afriat ,  Robert Rotzoll

IPC: G01J1/32 ,  G06F3/03 ,  G06F3/033

CPC classification number: G06F3/0317 ,  G01J1/32

Abstract: There is described an optical sensing device, a method for controlling operation of an optical sensing device comprising a light source for illuminating a surface portion with radiation, a photodetector device having at least one photosensitive element responsive to radiation reflected from the illuminated surface portion, and conversion means for integrating an output signal of said at least one photosensitive element over time during an integration period of variable duration, which duration depends on power of the light source and level of radiation reflected from the illuminated surface portion. The optical sensing device further comprises a regulating system for controlling power if the light source as a function of a comparison between a parameter representative of the evolution of the integration of the output signal of the said at least one photosensitive element and at least one reference value. Regulation is advantageously performed by timing the duration of the integration period or by determining the rate of evolution of the integrated signal, comparing this duration or rate of evolution with at least one reference value and controlling power of the light source as a function of the result of the comparison. There is also described an optical pointing device implementing the above regulation scheme as well as an optical sensing device exploiting this scheme so as to sense proximity of the illuminated surface portion with respect to the optical sensing device.

Abstract translation: 描述了一种光学感测装置，一种用于控制光学感测装置的操作的方法，所述光学感测装置包括用于用辐射照射表面部分的光源;光电检测器装置，其具有响应于从被照射的表面部分反射的辐射的至少一个感光元件，以及 转换装置，用于在可变持续时间的积分周期期间随时间积分所述至少一个感光元件的输出信号，该持续时间取决于光源的功率和从被照射表面部分反射的辐射水平。 光学传感装置还包括调节系统，用于控制功率，如果光源是表示所述至少一个感光元件的输出信号的积分演变的参数与至少一个参考值之间的比较的函数的函数 。 有利的是通过对积分期的持续时间进行定时或通过确定积分信号的演化速率来进行调节，将该持续时间或进化速率与至少一个参考值进行比较，并将光源的功率控制为结果的函数 的比较。 还描述了实现上述调节方案的光学指向装置以及利用该方案的光学感测装置，以便感测照射的表面部分相对于光学感测装置的接近度。

公开(公告)号：US06472942B1

公开(公告)日：2002-10-29

申请号：US09642429

申请日：2000-08-21

Applicant: James Harold Lauffenburger ,  John William Arachtingi ,  Kevin Scott Buescher ,  Gil Afriat

Inventor： James Harold Lauffenburger ,  John William Arachtingi ,  Kevin Scott Buescher ,  Gil Afriat

IPC: H03F114

CPC classification number: H01L27/0794 ,  H01L27/0802 ,  H01L27/0805 ,  H03F3/3023 ,  H03F3/3062 ,  H03F3/45188 ,  H03F3/45654 ,  H03F2203/30147 ,  H03F2203/45418 ,  H03F2203/45424 ,  H03F2203/45508 ,  H03F2203/45526

Abstract: A parasitically compensated resistor (50) for integrated circuits includes a substrate (52). A polysilicon resistor (54) is formed in the substrate (52). The polysilicon resistor (54) has a first end connected to a first lead (56) and a second end connected to a second lead (58). A conductive layer (62) is capacitively connected to the polysilicon resistor (54).

Abstract translation: 用于集成电路的寄生补偿电阻器（50）包括衬底（52）。 在基板（52）中形成多晶硅电阻（54）。 多晶硅电阻器（54）具有连接到第一引线（56）的第一端和连接到第二引线（58）的第二端。 导电层（62）电容连接到多晶硅电阻器（54）。