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公开(公告)号：US20130076712A1
公开(公告)日：2013-03-28
申请号：US13241034
申请日：2011-09-22
申请人： Dong Zheng , Brian R. Land
发明人： Dong Zheng , Brian R. Land
CPC分类号： G09G5/10 , G01J1/32 , G01J1/4204 , G06F3/0412 , G06F3/044 , G09G2320/0626 , G09G2360/144
摘要： An electronic device may have a display with a brightness that is adjusted based on ambient light data from multiple ambient light sensors. Sensors that are shadowed can be ignored. A touch sensor array in the display may have electrodes that overlap ambient light sensors. When a touch sensor signal indicates that an external object is covering one of the ambient light sensors, data from that ambient light sensor can be discarded. The ambient light sensors may include a primary ambient light sensor such as a human-eye-response ambient light sensor and may include an array of secondary ambient light sensors such as non-human-eye-response sensors. The secondary ambient light sensors may be formed on a display layer such as a thin-film-transistor layer and may be formed from thin-film materials. An algorithm may be used to dynamically calibrate non-human-eye-response ambient light sensors to the human-eye-response ambient light sensor.
摘要翻译： 电子设备可以具有基于来自多个环境光传感器的环境光数据调整的亮度的显示器。 被遮蔽的传感器可以忽略。 显示器中的触摸传感器阵列可以具有与环境光传感器重叠的电极。 当触摸传感器信号指示外部物体覆盖环境光传感器之一时，可以丢弃来自该环境光传感器的数据。 环境光传感器可以包括主要环境光传感器，例如人眼响应环境光传感器，并且可以包括诸如非人眼响应传感器的次级环境光传感器的阵列。 二次环境光传感器可以形成在诸如薄膜晶体管层的显示层上，并且可以由薄膜材料形成。 可以使用算法来动态校准人眼响应环境光传感器的非人眼响应环境光传感器。
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2.发明授权公开(公告)号：US09146304B2
公开(公告)日：2015-09-29
申请号：US13608973
申请日：2012-09-10
申请人： Brian R. Land , Dong Zheng
发明人： Brian R. Land , Dong Zheng
CPC分类号： G01S7/493 , G01S7/497 , G01S17/026 , G01S17/88 , H04M1/72522 , H04M2250/12 , H04M2250/22 , H04W52/0254 , Y02D70/00 , Y02D70/26
摘要： An electronic device may be provided with a proximity sensor. The proximity sensor may include a light source such as a light-emitting diode and a light detector such as a photodiode. The light-emitting diode may be driven with an alternating current drive signal so that alternating current light is produced. The alternating current light may reflect off of an external object and may be received by the photodiode. The photodiode may receive a direct current light signal associated with the presence of ambient light. The efficiency of the photodiode may be affected by the level of ambient light and the efficiency of the light-emitting diode may be affected by the temperature of the light-emitting diode. Ambient light correction circuitry and temperature correction circuitry may be used to ensure that proximity sensor readings are not adversely affected by changes in operating temperature and ambient lighting conditions.
摘要翻译： 电子设备可以设置有接近传感器。 接近传感器可以包括诸如发光二极管的光源和诸如光电二极管的光检测器。 可以用交流驱动信号驱动发光二极管，从而产生交流光。 交流电可以从外部物体反射并且可以被光电二极管接收。 光电二极管可以接收与环境光的存在相关联的直流光信号。 光电二极管的效率可能受到环境光的影响，并且发光二极管的效率可能受到发光二极管的温度的影响。 可以使用环境光校正电路和温度校正电路来确保接近传感器读数不受操作温度和环境照明条件的变化的不利影响。
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公开(公告)号：US08912480B2
公开(公告)日：2014-12-16
申请号：US13222387
申请日：2011-08-31
申请人： Benjamin J. Pope , Kelvin Kwong , Richard P. Howarth , Richard Hung Minh Dinh , Tang Yew Tan , Richard Ruh , Matt Waldon , Daniel W. Jarvis , Brian R. Land , Steven P. Hotelling
发明人： Benjamin J. Pope , Kelvin Kwong , Richard P. Howarth , Richard Hung Minh Dinh , Tang Yew Tan , Richard Ruh , Matt Waldon , Daniel W. Jarvis , Brian R. Land , Steven P. Hotelling
CPC分类号： G01J1/0233 , G01J1/0407 , G01J1/0422 , G01J1/0425 , G01J1/0474 , G01J1/0488 , G01J1/4204 , H04M1/026 , H04M2250/12
摘要： The underside of an inactive portion of a display cover layer in an electronic device may be covered with an opaque masking material. Openings in the opaque masking material may be form ambient light sensor and proximity sensor windows. An ambient light sensor window may be filled with a material that transmits at least some visible light. A proximity sensor window may be filled with a material that transmits more infrared light relative to visible light than the material in the ambient light sensor window. The materials in the ambient light sensor window and proximity sensor window may include one or more layers of ink, patterns of holes, layers of material that are shared with the opaque masking layer, and materials that are black, white, or other colors. A light guide structure may be used to route light received from a sensor window to an associated sensor.
摘要翻译： 电子设备中的显示覆盖层的不活动部分的下侧可以用不透明的掩模材料覆盖。 不透明掩模材料中的开口可以形成环境光传感器和接近传感器窗口。 环境光传感器窗口可以填充有透射至少一些可见光的材料。 接近传感器窗口可以填充相对于可见光透射比环境光传感器窗口中的材料更多的红外光的材料。 环境光传感器窗口和接近传感器窗口中的材料可以包括与不透明掩模层共享的一层或多层墨水，孔图案，材料层，以及黑色，白色或其它颜色的材料。 光导结构可以用于将从传感器窗口接收的光路由到相关传感器。
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公开(公告)号：US07673510B2
公开(公告)日：2010-03-09
申请号：US10591333
申请日：2005-03-11
IPC分类号： G01P9/04
CPC分类号： G01C19/5705 , G01C19/56 , G01C19/5719 , G01C25/00
摘要： A dual-axis rotational rate sensor having two vibratory masses coupled to a restoring element and driven in a resonant counter-phase motion, wherein the two masses vibrate with equal but opposite amplitudes along a single axis. The vibratory structure also accommodates motion of the masses in a plane orthogonal to the vibratory axis. Measurement of the motion of the masses in two axes in this plane provides signals directly responsive to rotation of the sensor about two orthogonal axes. Measurement and drive is facilitated by the use of magnetic masses and electromagnetic drive and sense transducers.
摘要翻译： 双轴旋转速率传感器，其具有耦合到恢复元件并以谐振相位运动驱动的两个振动质量，其中两个质量沿着单个轴以相等但相反的幅度振动。 振动结构还适应质量在与振动轴正交的平面中的运动。 在该平面中测量两轴中的质量的运动提供了直接响应于传感器围绕两个正交轴的旋转的信号。 通过使用磁性质量和电磁驱动和感测传感器来促进测量和驱动。
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5.发明申请公开(公告)号：US20140070078A1
公开(公告)日：2014-03-13
申请号：US13608973
申请日：2012-09-10
申请人： Brian R. Land , Dong Zheng
发明人： Brian R. Land , Dong Zheng
IPC分类号： G01J1/44
CPC分类号： G01S7/493 , G01S7/497 , G01S17/026 , G01S17/88 , H04M1/72522 , H04M2250/12 , H04M2250/22 , H04W52/0254 , Y02D70/00 , Y02D70/26
摘要： An electronic device may be provided with a proximity sensor. The proximity sensor may include a light source such as a light-emitting diode and a light detector such as a photodiode. The light-emitting diode may be driven with an alternating current drive signal so that alternating current light is produced. The alternating current light may reflect off of an external object and may be received by the photodiode. The photodiode may receive a direct current light signal associated with the presence of ambient light. The efficiency of the photodiode may be affected by the level of ambient light and the efficiency of the light-emitting diode may be affected by the temperature of the light-emitting diode. Ambient light correction circuitry and temperature correction circuitry may be used to ensure that proximity sensor readings are not adversely affected by changes in operating temperature and ambient lighting conditions.
摘要翻译： 电子设备可以设置有接近传感器。 接近传感器可以包括诸如发光二极管的光源和诸如光电二极管的光检测器。 可以用交流驱动信号驱动发光二极管，从而产生交流光。 交流电可以从外部物体反射并且可以被光电二极管接收。 光电二极管可以接收与环境光的存在相关联的直流光信号。 光电二极管的效率可能受到环境光的影响，并且发光二极管的效率可能受到发光二极管的温度的影响。 可以使用环境光校正电路和温度校正电路来确保接近传感器读数不受操作温度和环境照明条件的变化的不利影响。
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公开(公告)号：US07856878B2
公开(公告)日：2010-12-28
申请号：US10591221
申请日：2005-03-11
IPC分类号： G01P9/04
CPC分类号： G01C19/5705 , G01C19/56 , G01C19/5719 , G01C25/00
摘要： A vibratory rotational rate gyroscope has a suspended assembly isolated from external vibrations by an arrangement of helical springs. This isolated assembly includes both the active components of the rotational rate gyroscope and a digital processing circuit. The digital processing circuit includes digital storage for both externally determined and internally determined unit-specific calibration values. These values provide seed values for startup processes, which improves loop startup time, and values for unit-specific electronic calibration. The digital processing circuit further converts all data to digital form. A digital communications protocol is used to transmit the calibration information and the outgoing data to and from the isolated assembly on only two conductors. Two additional conductors used for power. Four of the helical springs used in the suspension arrangement are used for these conductors such that no additional wiring is required.
摘要翻译： 振动旋转速率陀螺仪具有通过螺旋弹簧的布置与外部振动隔离的悬挂组件。 该隔离的组件包括旋转速率陀螺仪的有源部件和数字处理电路。 数字处理电路包括用于外部确定的和内部确定的单位特定校准值的数字存储。 这些值为启动过程提供种子值，可以提高循环启动时间，以及单位特定电子校准的值。 数字处理电路还将所有数据转换成数字形式。 数字通信协议用于仅在两个导体上传送校准信息和输出数据到和从隔离组件传输。 两个额外的导体用于电源。 在悬挂装置中使用的四个螺旋弹簧用于这些导体，使得不需要额外的布线。
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公开(公告)号：US07644604B2
公开(公告)日：2010-01-12
申请号：US10591222
申请日：2005-03-11
IPC分类号： G01C25/00
CPC分类号： G01C19/5705 , G01C19/56 , G01C19/5719 , G01C25/00
摘要： A synchronous signal processing circuit for a dual-axis vibratory rotation-rate sensor uses a hybrid analog/digital design to provide correction for parasitic quadrature errors by the addition of synthesized correction signals in the analog domain prior to digitization. Error correction, signal demodulation and data conversions are synchronized with a signal phase-locked to the measured motion of the vibratory mass. Similarly, cross-axis error correction signals are synthesized directly from the cross axis signals. Use of these precise phase references provides for various benefits in signal noise and error matching (tracking) over wide operation conditions.
摘要翻译： 用于双轴振动旋转速率传感器的同步信号处理电路使用混合模拟/数字设计，以在数字化之前通过在模拟域中添加合成校正信号来提供对寄生正交误差的校正。 纠错，信号解调和数据转换与锁定到振动质量的测量运动的信号同步。 类似地，交叉轴误差校正信号是从交叉轴信号直接合成的。 使用这些精确的相位参考提供了在宽操作条件下的信号噪声和误差匹配（跟踪）中的各种优点。
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公开(公告)号：US07464590B1
公开(公告)日：2008-12-16
申请号：US11077040
申请日：2005-03-10
IPC分类号： G01P9/04
CPC分类号： G01C19/5705 , G01C19/56 , G01C19/5719 , G01C25/00
摘要： A signal-processing circuit for a dual-axis vibratory rotation-rate sensor has a digitally programmable bandwidth. An analog-to-digital converter (ADC) converts analog sense signals to digital signals at a high sampling rate. The results of successive ADC conversions are accumulated for a user-programmable number of conversions. By accumulating a number of samples, the sense signals are averaged which improves the signal-to-noise ratio and smoothes the output signal. Alternatively, accumulating a smaller number of samples allows the user to improve the response time of the sensor, allowing the user to set the number of samples that are averaged enables the user to control the effective bandwidth of the sensor. The accumulated conversions are also are scaled by unit-specific calibration factors in order to accommodate for unit to unit variations, so that the rate output will be consistent across a number of sensors.
摘要翻译： 用于双轴振动旋转速率传感器的信号处理电路具有数字可编程带宽。 模数转换器（ADC）以高采样率将模拟检测信号转换为数字信号。 对于用户可编程的转换次数累积了连续ADC转换的结果。 通过累积多个采样，感测信号被平均，这提高了信噪比并平滑了输出信号。 或者，累积更少数量的样本允许用户改善传感器的响应时间，允许用户设置平均的样本数量，使得用户能够控制传感器的有效带宽。 积累的转换也可以通过单位特定的校准因子进行缩放，以适应单位到单位的变化，从而使传输速率的传输速率一致。
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公开(公告)号：US5698784A
公开(公告)日：1997-12-16
申请号：US593534
申请日：1996-01-24
申请人： Steven P. Hotelling , Brian R. Land
发明人： Steven P. Hotelling , Brian R. Land
IPC分类号： G01C19/5607 , G01C19/00 , G01P9/00
CPC分类号： G01C19/5607
摘要： A vibrating gyroscope employs an electromagnetic transducer assembly which excites the vibration of the inertial element and senses its trajectory to provide an indication of movement relative to the plane of vibration of the inertial element. The transducer assembly allows for calibration of the gyroscope by positioning the transducer relative to the inertial element, thereby eliminating conventional requirements for selectively removing material from the inertial element during final calibration. Elastic members of the inertial element are manufactured in a monolithic structure to enhance the vibratory symmetry of the inertial element and the consistency and repeatability of its resonant properties. A phase-shifting circuit allows accurate extraction of rate information from the transducer while rejecting error signals. A mounting system facilitates mounting inertial elements to provide a simple implementations of multi-axis vibrating gyroscopes.
摘要翻译： 振动陀螺仪采用电磁换能器组件，其激发惯性元件的振动并感测其轨迹，以提供相对于惯性元件的振动平面的运动的指示。 传感器组件允许通过相对于惯性元件定位换能器来校准陀螺仪，从而消除了在最终校准期间选择性地从惯性元件去除材料的常规要求。 惯性元件的弹性构件以单片结构制造，以增强惯性元件的振动对称性及其谐振特性的一致性和重复性。 移相电路允许在拒绝误差信号的同时准确地提取来自换能器的速率信息。 安装系统有助于安装惯性元件以提供多轴振动陀螺仪的简单实现。
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