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1. 发明授权

US5193029A Single sensor adaptive drive circuit for rearview mirror system 失效
标题翻译：用于后视镜系统的单传感器自适应驱动电路
公开(公告)号：US5193029A
公开(公告)日：1993-03-09
申请号：US794441
申请日：1991-11-19
申请人： Kenneth Schofield , Richard J. Gahan , Kenneth L. Schierbeek , Mark L. Larson
发明人： Kenneth Schofield , Richard J. Gahan , Kenneth L. Schierbeek , Mark L. Larson
IPC分类号： B60Q1/14 , B60R1/08
CPC分类号： B60R1/087 , B60Q1/14 , B60R1/088
摘要： An automatic rearview mirror system having a reflective element that is actuatable between at least two different reflective conditions by a control that discriminates between glare-causing and nonglare-causing light simultaneously sensed by a single light sensor. The control includes a processor that is more responsive to decreasing levels of light than to increasing levels of light to produce a signal that is indicative of the slow-transient characteristic of the light sensed by the single light sensor. The processor may include a very slow signal processor that is always operative and a somewhat faster-slow signal processor, which may be selectively inhibited when the mirror is fully colored, or when a differential circuit indicates that the difference between the glare and the non-glare light sensed by the light sensor exceeds a predetermined level. The differential circuit may additionally limit the differential between the glare and the nonglare lights sensed by the light sensor.
摘要翻译：一种具有反射元件的自动后视镜系统，该反射元件可通过控制来在至少两个不同的反射条件之间致动，所述控制区分由单个光传感器同时感测到的引起眩光和不透明的光。该控制器包括一个处理器，该处理器响应于减少光的水平而不是增加光的水平以产生指示由单个光传感器感测的光的慢瞬态特性的信号。处理器可以包括总是可操作的非常慢的信号处理器和稍微更慢的信号处理器，当反射镜被完全着色时，可以选择性地禁止这种信号处理器，或者当差分电路指示眩光与非光信号之间的差异时，由光传感器感测到的眩光超过预定水平。差分电路还可以限制由光传感器感测的眩光和非光泽光之间的差异。

2. 发明授权

US5644851A Compensation system for electronic compass 失效
标题翻译：电子罗盘补偿系统
公开(公告)号：US5644851A
公开(公告)日：1997-07-08
申请号：US142509
申请日：1993-10-25
申请人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
发明人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
IPC分类号： G01C17/32 , B60K35/00 , B60R1/08 , B60R1/12 , G01C17/28 , G01C17/38 , G01R33/025
CPC分类号： B60R1/12 , B60K35/00 , B60R1/088 , G01C17/28 , G01C17/38 , G01R33/025 , B60R1/1207 , B60R2001/1215 , B60R2001/1223 , B60R2001/123 , B60R2001/1246 , B60R2001/1253 , B60R2001/1284
摘要： An electronic compass is described for use in vehicles. The compass employs a magnetoresistive sensor for sensing the earth magnetic field and the sensor is operated in alternate set/reset bias modes. In a first embodiment, the compass is provided with deviation compensation by a closed loop system including measurement of the sensor output signals and an offset current strap for nullifying the vehicle deviation field. In a second embodiment, deviation compensation is provided by operation in an initial calibration mode and by operation in a normal calibration mode to adjust compensation, as needed, on a long term basis during normal operation of the compass. In the initial calibration mode, while the vehicle is being driven, the signal peak values are adjusted to a nominal earth field level by changing the offset current. Then, compensating signal reference values for each axis are determined as each peak for that axis is determined. The system automatically exits the initial calibration mode when certain criteria have been met. In the normal compensation mode, the signal reference value for each axis is adjusted at least once during the time interval between turn-on and turn-off of the vehicle ignition switch.
摘要翻译：电子罗盘描述为用于车辆。罗盘使用磁阻传感器来感测地球磁场，传感器以交替设置/复位偏置模式运行。在第一实施例中，通过包括测量传感器输出信号的闭环系统和用于使车辆偏离场无效的偏移电流带来向罗盘提供偏差补偿。在第二实施例中，通过在初始校准模式中的操作以及在正常校准模式下操作来提供偏差补偿，以根据需要在罗盘的正常操作期间长期地调整补偿。在初始校准模式下，当车辆被驱动时，通过改变偏移电流将信号峰值调整到标称接地电平。然后，确定每个轴的补偿信号参考值，作为该轴的每个峰值被确定。当符合某些标准时，系统会自动退出初始校准模式。在正常补偿模式下，每个轴的信号参考值在车辆点火开关的开启和关闭之间的时间间隔内至少调整一次。

3. 发明授权

US06173501B1 Compensation system for electronic compass 失效
标题翻译：电子罗盘补偿系统
公开(公告)号：US06173501B1
公开(公告)日：2001-01-16
申请号：US09149227
申请日：1998-09-08
申请人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
发明人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
IPC分类号： G01C1728
CPC分类号： B60R1/12 , B60K35/00 , B60R1/088 , B60R1/1207 , B60R2001/1215 , B60R2001/1223 , B60R2001/123 , B60R2001/1246 , B60R2001/1253 , B60R2001/1284 , G01C17/28 , G01C17/38 , G01R33/025
摘要： An electronic compass is described for use in vehicles. The compass employs a magnetoresistive sensor for sensing the earth magnetic field and the sensor is operated in alternate set/reset bias modes. In a first embodiment, the compass is provided with deviation compensation by a closed loop system including measurement of the sensor output signals and an offset current strap for nullifying the vehicle deviation field. In a second embodiment, deviation compensation is provided by operation in an initial calibration mode and by operation in a normal compensation mode to adjust compensation, as needed, on a long term basis during normal operation of the compass. In the initial calibration mode, while the vehicle is being driven, the signal peak values are adjusted to a nominal earth field level by changing the offset current. Then, compensating signal reference values for each axis are determined as each peak for that axis is determined. The system automatically exits the initial calibration mode when certain criteria have been met. In the normal compensation mode, the signal reference value for each axis is adjusted at least once during the time interval between turn-on and turn-off of the vehicle ignition switch.
摘要翻译：电子罗盘描述为用于车辆。罗盘使用磁阻传感器来感测地球磁场，传感器以交替设置/复位偏置模式运行。在第一实施例中，通过包括测量传感器输出信号的闭环系统和用于使车辆偏离场无效的偏移电流带来向罗盘提供偏差补偿。在第二实施例中，通过在初始校准模式中的操作和通常在正常补偿模式下操作来提供偏差补偿，以在罗盘的正常操作期间根据需要在长期基础上调整补偿。在初始校准模式下，当车辆被驱动时，通过改变偏移电流将信号峰值调整到标称接地电平。然后，确定每个轴的补偿信号参考值，作为该轴的每个峰值被确定。当符合某些标准时，系统会自动退出初始校准模式。在正常补偿模式下，每个轴的信号参考值在车辆点火开关的开启和关闭之间的时间间隔内至少调整一次。

4. 发明授权

US5802727A Compensation system for electronic compass 失效
标题翻译：电子罗盘补偿系统
公开(公告)号：US5802727A
公开(公告)日：1998-09-08
申请号：US823469
申请日：1997-03-24
申请人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
发明人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
IPC分类号： G01C17/32 , B60K35/00 , B60R1/08 , B60R1/12 , G01C17/28 , G01C17/38 , G01R33/025
CPC分类号： B60R1/12 , B60K35/00 , B60R1/088 , G01C17/28 , G01C17/38 , G01R33/025 , B60R1/1207 , B60R2001/1215 , B60R2001/1223 , B60R2001/123 , B60R2001/1246 , B60R2001/1253 , B60R2001/1284
摘要： An electronic compass is described for use in vehicles. The compass employs a magnetoresistive sensor for sensing the earth magnetic field and the sensor is operated in alternate set/reset bias modes. In a first embodiment, the compass is provided with deviation compensation by a closed loop system including measurement of the sensor output signals and an offset current strap for nullifying the vehicle deviation field. In a second embodiment, deviation compensation is provided by operation in an initial calibration mode and by operation in a normal calibration mode to adjust compensation, as needed, on a long term basis during normal operation of the compass. In the initial calibration mode, while the vehicle is being driven, the signal peak values are adjusted to a nominal earth field level by changing the offset current. Then, compensating signal reference values for each axis are determined as each peak for that axis is determined. The system automatically exits the initial calibration mode when certain criteria have been met. In the normal compensation mode, The signal reference value for each axis is adjusted at least once during the time interval between turn-on and turn-off of the vehicle ignition switch.
摘要翻译：电子罗盘描述为用于车辆。罗盘使用磁阻传感器来感测地球磁场，传感器以交替设置/复位偏置模式运行。在第一实施例中，通过包括测量传感器输出信号的闭环系统和用于使车辆偏离场无效的偏移电流带来向罗盘提供偏差补偿。在第二实施例中，通过在初始校准模式中的操作以及在正常校准模式下操作来提供偏差补偿，以根据需要在罗盘的正常操作期间长期地调整补偿。在初始校准模式下，当车辆被驱动时，通过改变偏移电流将信号峰值调整到标称接地电平。然后，确定每个轴的补偿信号参考值，作为该轴的每个峰值被确定。当符合某些标准时，系统会自动退出初始校准模式。在正常补偿模式下，每个轴的信号参考值在车辆点火开关的开启和关闭之间的时间间隔内至少调整一次。

5. 发明授权

US06427349B1 Compensation system for electronic compass 失效
标题翻译：电子罗盘补偿系统
公开(公告)号：US06427349B1
公开(公告)日：2002-08-06
申请号：US09758518
申请日：2001-01-11
申请人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
发明人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
IPC分类号： G01C1728
CPC分类号： B60R1/12 , B60K35/00 , B60R1/088 , B60R1/1207 , B60R2001/1215 , B60R2001/1223 , B60R2001/123 , B60R2001/1246 , B60R2001/1253 , B60R2001/1284 , G01C17/28 , G01C17/38 , G01R33/025
摘要： An electronic compass is described for use in vehicles. The compass employs a magnetoresistive sensor for sensing the earth magnetic field and the sensor is operated in alternate set/reset bias modes. In a first embodiment, the compass is provided with deviation compensation by a closed loop system including measurement of the sensor output signals and an offset current strap for nullifying the vehicle deviation field. In a second embodiment, deviation compensation is provided by operation in an initial calibration mode and by operation in a normal compensation mode to adjust compensation, as needed, on a long term basis during normal operation of the compass. In the initial calibration mode, while the vehicle is being driven, the signal peak values are adjusted to a nominal earth field level by changing the offset current. Then, compensating signal reference values for each axis are determined as each peak for that axis is determined. The system automatically exits the initial calibration mode when certain criteria have been met. In the normal compensation mode, the signal reference value for each axis is adjusted at least once during the time interval between turn-on and turn-off of the vehicle ignition switch.
摘要翻译：电子罗盘描述为用于车辆。罗盘使用磁阻传感器来感测地球磁场，传感器以交替设置/复位偏置模式运行。在第一实施例中，通过包括测量传感器输出信号的闭环系统和用于使车辆偏离场无效的偏移电流带来向罗盘提供偏差补偿。在第二实施例中，通过在初始校准模式中的操作和通常在正常补偿模式下操作来提供偏差补偿，以在罗盘的正常操作期间根据需要在长期基础上调整补偿。在初始校准模式下，当车辆被驱动时，通过改变偏移电流将信号峰值调整到标称接地电平。然后，确定每个轴的补偿信号参考值，作为该轴的每个峰值被确定。当符合某些标准时，系统会自动退出初始校准模式。在正常补偿模式下，每个轴的信号参考值在车辆点火开关的开启和关闭之间的时间间隔内至少调整一次。

6. 发明授权

US5632092A Compensation system for electronic compass 失效
标题翻译：电子罗盘补偿系统
公开(公告)号：US5632092A
公开(公告)日：1997-05-27
申请号：US457621
申请日：1995-06-01
申请人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
发明人： Rodney K. Blank , Richard J. Gahan , Howard J. Haselhuhn, Jr. , Kenneth L. Schierbeek , Kenneth Schofield
IPC分类号： G01C17/32 , B60K35/00 , B60R1/08 , B60R1/12 , G01C17/28 , G01C17/38 , G01R33/025 , G01R33/06
CPC分类号： B60R1/12 , B60K35/00 , B60R1/088 , G01C17/28 , G01C17/38 , G01R33/025 , B60R1/1207 , B60R2001/1215 , B60R2001/1223 , B60R2001/123 , B60R2001/1246 , B60R2001/1253 , B60R2001/1284
摘要： An electronic compass is described for use in vehicles. The compass employs a magnetoresistive sensor for sensing the earth magnetic field and the sensor is operated in alternate set/reset bias modes. In a first embodiment, the compass is provided with deviation compensation by a closed loop system including measurement of the sensor output signals and an offset current strap for nullifying the vehicle deviation field. In a second embodiment, deviation compensation is provided by operation in an initial calibration mode and by operation in a normal calibration mode to adjust compensation, as needed, on a long term basis during normal operation of the compass. In the initial calibration mode, while the vehicle is being driven, the signal peak values are adjusted to a nominal earth field level by changing the offset current. Then, compensating signal reference values for each axis are determined as each peak for that axis is determined. The system automatically exits the initial calibration mode when certain criteria have been met. In the normal compensation mode, The signal reference value for each axis is adjusted at least once during the time interval between turn-on and turn-off of the vehicle ignition switch.
摘要翻译：电子罗盘描述为用于车辆。罗盘使用磁阻传感器来感测地球磁场，传感器以交替设置/复位偏置模式运行。在第一实施例中，通过包括测量传感器输出信号的闭环系统和用于使车辆偏离场无效的偏移电流带来向罗盘提供偏差补偿。在第二实施例中，通过在初始校准模式中的操作以及在正常校准模式下操作来提供偏差补偿，以根据需要在罗盘的正常操作期间长期地调整补偿。在初始校准模式下，当车辆被驱动时，通过改变偏移电流将信号峰值调整到标称接地电平。然后，确定每个轴的补偿信号参考值，作为该轴的每个峰值被确定。当符合某些标准时，系统会自动退出初始校准模式。在正常补偿模式下，每个轴的信号参考值在车辆点火开关的开启和关闭之间的时间间隔内至少调整一次。

7. 发明授权

US4871917A Vehicular moisture sensor and mounting apparatus therefor 失效
标题翻译：车载湿度传感器及其安装设备
公开(公告)号：US4871917A
公开(公告)日：1989-10-03
申请号：US183706
申请日：1988-04-19
申请人： Desmond J. O'Farrell , Kenneth Schofield , Mark L. Larson , Karl-Heinz Hanft , Kenneth L. Schierbeek , Richard D. Bentley
发明人： Desmond J. O'Farrell , Kenneth Schofield , Mark L. Larson , Karl-Heinz Hanft , Kenneth L. Schierbeek , Richard D. Bentley
IPC分类号： B60S1/08 , G01N21/43
CPC分类号： G01N21/43 , B60S1/0822 , B60S1/0833 , B60S1/0885 , B60S1/0888 , G01N2021/435 , G01N2201/0813 , Y10S15/15
摘要： A moisture sensing assembly for controlling vehicle accessories such as windshield wipers is mounted on the inner surface of a vehicle window or windshield for detecting moisture on the outer window surface. A plurality of infrared energy emitting diodes and a sensor for receiving reflected infrared energy from the window and any moisture thereon are mounted at predetermined angles and spacing in a support. The support is biased against the window and enclosed in a protective housing detachably mounted to a window mounted plate preferably adjacent a rearview mirror on the front windshield. The support preferably includes an infrared energy monitoring sensor adjacent the emitting diodes which may be combined with or separate from an ambient infrared energy sensor. The monitoring and ambient sensors provide reference energy levels allowing compensation for varying diode output due to temperature and age and varying external vehicle light conditions.
摘要翻译：用于控制诸如挡风玻璃刮水器的车辆附件的湿度感测组件安装在车窗或挡风玻璃的内表面上，用于检测外窗表面上的湿气。多个红外能量发射二极管和用于从窗口接收反射的红外能量和其上的任何水分的传感器以预定角度和间隔安装在支撑件中。支撑件偏压在窗户上并且封闭在可拆卸地安装到窗户安装板上的保护壳体中，优选地与前挡风玻璃上的后视镜相邻。该支撑件优选地包括与发射二极管相邻的红外能量监测传感器，其可与环境红外能量传感器组合或分离。监控和环境传感器提供参考能量水平，可以补偿由于温度和年龄以及外部车辆光线条件变化引起的二极管输出变化。

8. 发明授权

US4916374A Continuously adaptive moisture sensor system for wiper control 失效
标题翻译：连续自适应湿度传感器系统，用于刮水器控制
公开(公告)号：US4916374A
公开(公告)日：1990-04-10
申请号：US317288
申请日：1989-02-28
申请人： Kenneth L. Schierbeek , Mark L. Larson , Kenneth Schofield
发明人： Kenneth L. Schierbeek , Mark L. Larson , Kenneth Schofield
IPC分类号： B60S1/08
CPC分类号： B60S1/0818 , B60S1/0888 , B60S1/0837 , Y10S318/02
摘要： An adaptive moisture sensor system includes a moisture sensor unit having a moisture sensor, which produces a moisture signal, a reference signal generating circuit and a comparator circuit for comparing the moisture signal with the reference signal and for producing an indication to the vehicle's wiper control of the relationship between the signals. The reference signal generating circuit indicates a fast positive signal processing circuit for rapidly processing changes in the moisture signal representing decreasing moisture and a slow signal processing circuit to process changes of the moisture signal in both directions at a slow rate. The fast positive signal processing circuit is only enabled during rain conditions due to a contaminant film on the sensed window. The reference signal generating circuit further includes a fast negative signal processing circuit which responds to a stable moisture signal occuring during rain conditions by rapidly offsetting the reference signal to discontinue wiper operation. Multiple sensing assemblies, each including a sensor, a reference signal generating circuit and a comparator, are combined with a master control unit, which responds to any sensing assembly indicating a rain condition, in order to switch all sensing assemblies to a rain mode.
摘要翻译：自适应湿度传感器系统包括具有湿度传感器的湿度传感器单元，其产生水分信号，参考信号产生电路和比较器电路，用于将湿度信号与参考信号进行比较，并用于产生对车辆刮水器控制的指示信号之间的关系。参考信号发生电路指示用于快速处理表示减少水分的湿度信号的变化的快速正信号处理电路和用于以缓慢的速率处理两个方向的湿度信号的变化的慢信号处理电路。快速正信号处理电路仅在雨水条件下由于感测窗口上的污染物膜而启用。参考信号发生电路还包括快速负信号处理电路，其通过快速偏移参考信号来停止雨刮器操作来响应在下雨期间发生的稳定的湿度信号。每个包括传感器，参考信号发生电路和比较器的感测组件与主控制单元组合，主控制单元响应于指示雨况的任何检测组件，以将所有感测组件切换到雨模式。

9. 发明授权

US4956591A Control for a moisture sensor 失效
标题翻译：控制湿度传感器
公开(公告)号：US4956591A
公开(公告)日：1990-09-11
申请号：US377589
申请日：1989-07-10
申请人： Kenneth L. Schierbeek , Mark L. Larson , Kenneth Schofield
发明人： Kenneth L. Schierbeek , Mark L. Larson , Kenneth Schofield
IPC分类号： B60S1/08
CPC分类号： B60S1/0818 , B60S1/0888 , B60S1/0837 , Y10S318/02
摘要： A control for a moisture sensing assembly, adapted for mounting on the inner surface of a vehicle window or windshield to control vehicle accessories such as windshield wipers, maximizes the window area being sensed in relationship to the size of the assembly and provides immunity to interference from environmental influences. In the preferred embodiment, moisture on the outer window surface is detected by first and second moisture sensors each including infrared energy radiating diodes and radiant energy detectors which detect and process radiant energy to produce a moisture signal that is a function of the moisture on the window. A synchronizing circuit intermittently actuates the radiating diode for the two sensors individually and alternatingly at equally-spaced intervals. The synchronizing circuit also inhibits the radiant energy detectors from processing the radiant energy signal except when the corresponding radiating diodes are emitting energy in order to prevent interference from the other radiating diodes and environmental influences. The synchronizing circuit includes a pair of oscillators which include capacitors and coupling devices that coordinate the discharging of the capacitors in a manner which provides equal intervals between alternating output pulses from the oscillators.
摘要翻译：适用于安装在车窗或挡风玻璃的内表面以控制诸如挡风玻璃刮水器的车辆配件的湿度感测组件的控制使得与组件尺寸相关联的感应窗口面积最大化，并且提供对来自环境影响。在优选实施例中，外窗表面上的水分由第一和第二湿度传感器检测，每个湿度传感器包括红外能量辐射二极管和辐射能量检测器，其检测和处理辐射能以产生作为窗口上水分的函数的湿度信号。同步电路以等间隔的间隔间歇地驱动两个传感器的辐射二极管，并以交替方式交替地驱动。同步电路还禁止辐射能量检测器处理辐射能信号，除非相应的辐射二极管发射能量以防止来自其它辐射二极管的干扰和环境影响。同步电路包括一对振荡器，其包括电容器和耦合器件，其以在来自振荡器的交替输出脉冲之间提供相等间隔的方式协调电容器的放电。

10. 发明授权

US5416313A Display for automatic rearview mirror 失效
标题翻译：显示自动后视镜
公开(公告)号：US5416313A
公开(公告)日：1995-05-16
申请号：US183052
申请日：1994-01-18
申请人： Mark L. Larson , Niall R. Lynam , Kenneth L. Schierbeek
发明人： Mark L. Larson , Niall R. Lynam , Kenneth L. Schierbeek
IPC分类号： B60Q3/04 , B60R1/08 , B60R1/12 , H01J40/14
CPC分类号： B60R1/088 , B60Q3/048 , B60R1/12 , B60K2350/2069 , B60R2001/1215
摘要： A rearview mirror system for a vehicle having a reflective element with a reflective surface and a variable light transmission element includes an optical display device behind the reflective element in order to produce a visual display to the driver. A control is provided having a light sensor that senses light conditions in the vicinity of the vehicle and produces a continuously variable light signal indicative of such sensed light conditions. The control further includes a drive circuit that is responsive to the light signal in order to supply a drive signal to the reflective element and thereby establish the light transmission level of the light transmission element. The control further includes an intensity control circuit that varies the intensity of the optical display as a function of the value of the sensed light in the vicinity of the vehicle in order to accommodate physiological changes in the driver's eyes. The intensity control circuit further varies the intensity of the optical display device as a function of the drive signal supplied to the reflective element in order to compensate for reduced light transmission levels of the light transmission element. The intensity control circuit sums values of the light signal and the drive signal and processes the sum to a pulse-width modulated signal using a non-linear processor. The intensity control also provides a substantially constant high intensity of the optical display device for all values of sensed light above a predetermined high light level and for all values of sensed light below a predetermined low light level.
摘要翻译：一种用于车辆的后视镜系统，具有具有反射表面的反射元件和可变光传输元件，包括在反射元件后面的光学显示装置，以便向驾驶员产生视觉显示。提供了具有感测车辆附近的光条件的光传感器并产生指示这种感测到的光条件的连续可变光信号的控制。该控制还包括响应于光信号的驱动电路，以便向反射元件提供驱动信号，从而建立光传输元件的光透射水平。该控制还包括强度控制电路，其根据车辆附近的感测光的值改变光学显示器的强度，以适应驾驶员的眼睛的生理变化。强度控制电路进一步根据提供给反射元件的驱动信号来改变光学显示装置的强度，以便补偿光传输元件的降低的光透射水平。强度控制电路将光信号和驱动信号的值相加，并使用非线性处理器将该和处理为脉冲宽度调制信号。强度控制还为预定的高光级以上的感测光的所有值以及低于预定低光级的感测光的所有值提供基本恒定的高强度的光学显示装置。

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