AMBIENT LIGHT DETECTION
    1.
    发明申请
    AMBIENT LIGHT DETECTION 有权
    环境光检测

    公开(公告)号:US20110141078A1

    公开(公告)日:2011-06-16

    申请号:US12884986

    申请日:2010-09-17

    CPC classification number: G01J1/18 G01J1/46

    Abstract: Ambient light is detected by a photodiode circuit by measuring the time taken for a digital output of the photodiode circuit to change state in response to exposure of a photodiode of the photodiode circuit to that ambient light. A nominal time for state change is calculated based on photodiode circuit characteristics. Furthermore, an effective time for the photodiode circuit digital output to change state is determined in a calibration mode where the photodiode has been disconnected and a reference current is applied to the circuit. An illumination value of the detected ambient light is then calculated as a function of: the measured time, the effective time and the nominal time.

    Abstract translation: 通过测量光电二极管电路的数字输出所需的时间以响应于光电二极管电路的光电二极管暴露于​​该环境光而改变状态,由光电二极管电路检测环境光。 基于光电二极管电路特性计算状态变化的标称时间。 此外,在光电二极管已经断开并且将参考电流施加到电路的校准模式中确定用于光电二极管电路数字输出改变状态的有效时间。 然后根据测量的时间,有效时间和标称时间来计算检测到的环境光的照明值。

    Computer navigation devices
    2.
    发明授权
    Computer navigation devices 有权
    计算机导航设备

    公开(公告)号:US08462114B2

    公开(公告)日:2013-06-11

    申请号:US11171125

    申请日:2005-06-30

    CPC classification number: G06F3/0317

    Abstract: An optical mouse includes an image sensor for providing image data via an analog-to-digital converter to a correlation circuit and a motion estimation circuit to provide output signals representative of motion of the mouse. The output signals may be disabled when the mouse is lifted away from the working surface. This may be achieved by high-pass filtering the signals, summing each frame in a summer to provide a single value, and comparing this to a threshold. If the filtered and summed value exceeds the threshold, this may indicate that the image contains in-focus objects, and that the mouse is on the working surface.

    Abstract translation: 光学鼠标包括用于经由模数转换器向相关电路提供图像数据的图像传感器和运动估计电路,以提供表示鼠标运动的输出信号。 当鼠标从工作表面离开时,输出信号可能会被禁用。 这可以通过对信号进行高通滤波来实现,在夏季对每个帧求和以提供单个值,并将其与阈值进行比较。 如果滤波和求和值超过阈值,则这可能表示图像包含对焦对象,并且鼠标位于工作表面上。

    OPTICAL NAVIGATION DEVICES
    3.
    发明申请
    OPTICAL NAVIGATION DEVICES 有权
    光学导航设备

    公开(公告)号:US20140028556A1

    公开(公告)日:2014-01-30

    申请号:US14001731

    申请日:2012-02-03

    Abstract: An optical navigation device is provided for detecting movement of a pointer, such as a finger, in three dimensions. A sensor obtains images of the pointer which have been illuminated by an illumination source, and an image scaling module determines the difference in size between images acquired by the image sensor to determine the difference in height of the pointer between images.

    Abstract translation: 提供了一种光学导航装置,用于检测诸如手指的指示器在三维中的移动。 传感器获得由照明源照亮的指示器的图像,并且图像缩放模块确定由图像传感器获取的图像之间的尺寸差异,以确定图像之间的指针高度差。

    Computer navigation devices
    4.
    发明申请

    公开(公告)号:US20060007155A1

    公开(公告)日:2006-01-12

    申请号:US11171125

    申请日:2005-06-30

    CPC classification number: G06F3/0317

    Abstract: An optical mouse includes an image sensor for providing image data via an analog-to-digital converter to a correlation circuit and a motion estimation circuit to provide output signals representative of motion of the mouse. The output signals may be disabled when the mouse is lifted away from the working surface. This may be achieved by high-pass filtering the signals, summing each frame in a summer to provide a single value, and comparing this to a threshold. If the filtered and summed value exceeds the threshold, this may indicate that the image contains in-focus objects, and that the mouse is on the working surface.

    Optical navigation devices
    5.
    发明授权
    Optical navigation devices 有权
    光学导航设备

    公开(公告)号:US09354719B2

    公开(公告)日:2016-05-31

    申请号:US14001731

    申请日:2012-02-03

    Abstract: An optical navigation device is provided for detecting movement of a pointer, such as a finger, in three dimensions. A sensor obtains images of the pointer which have been illuminated by an illumination source, and an image scaling module determines the difference in size between images acquired by the image sensor to determine the difference in height of the pointer between images.

    Abstract translation: 提供了一种光学导航装置,用于检测诸如手指的指示器在三维中的移动。 传感器获得由照明源照亮的指示器的图像,并且图像缩放模块确定由图像传感器获取的图像之间的尺寸差异,以确定图像之间的指针高度差。

    Ambient light detection
    6.
    发明授权
    Ambient light detection 有权
    环境光检测

    公开(公告)号:US08878830B2

    公开(公告)日:2014-11-04

    申请号:US12884986

    申请日:2010-09-17

    CPC classification number: G01J1/18 G01J1/46

    Abstract: Ambient light is detected by a photodiode circuit by measuring the time taken for a digital output of the photodiode circuit to change state in response to exposure of a photodiode of the photodiode circuit to that ambient light. A nominal time for state change is calculated based on photodiode circuit characteristics. Furthermore, an effective time for the photodiode circuit digital output to change state is determined in a calibration mode where the photodiode has been disconnected and a reference current is applied to the circuit. An illumination value of the detected ambient light is then calculated as a function of: the measured time, the effective time and the nominal time.

    Abstract translation: 通过测量光电二极管电路的数字输出所需的时间以响应于光电二极管电路的光电二极管暴露于​​该环境光而改变状态,由光电二极管电路检测环境光。 基于光电二极管电路特性计算状态变化的标称时间。 此外,在光电二极管已经断开并且将参考电流施加到电路的校准模式中确定用于光电二极管电路数字输出改变状态的有效时间。 然后根据测量的时间,有效时间和标称时间来计算检测到的环境光的照明值。

    Method and device for detecting movement of an entity provided with an image sensor
    7.
    发明授权
    Method and device for detecting movement of an entity provided with an image sensor 有权
    用于检测设有图像传感器的实体的移动的方法和装置

    公开(公告)号:US08179967B2

    公开(公告)日:2012-05-15

    申请号:US11480262

    申请日:2006-06-30

    Applicant: Pascal Mellot

    Inventor: Pascal Mellot

    CPC classification number: G06F3/0317 G06T7/223

    Abstract: An image sequence sensor senses images. To associate a motion vector with an image of the sequence currently being processed, k candidate vectors are generated by adding, to a reference motion vector, respectively k search vectors. Then, a motion vector is selected from among the k candidate vectors as a function of a selection rule. Thereafter, the previous two steps are repeated m times, the reference motion vector being on the one hand, for a first iteration of the first step, an initial reference vector selected from among a set of vectors comprising at least one motion vector associated with a previous processed image and being on the other hand, for the m repetitions of the first step, the motion vector selected in the second step preceding the first step. Then, the vector obtained in the third step is associated with the image currently being processed.

    Abstract translation: 图像序列传感器感测图像。 为了将运动矢量与当前正在处理的序列的图像相关联,通过将k个搜索向量分别加到参考运动矢量来生成k个候选向量。 然后,作为选择规则的函数,从k个候选向量中选择运动矢量。 此后,先前的两个步骤重复m次,参考运动矢量一方面用于第一步骤的第一迭代,从包括至少一个与一个运动矢量相关联的运动矢量的一组矢量中选择的初始参考矢量 另一方面,对于先前处理的图像,另一方面,对于第一步的m次重复,在第一步骤之前的第二步中选择的运动矢量。 然后,在第三步骤中获得的向量与当前处理的图像相关联。

    Modulation device using frequency-shift keying
    8.
    发明授权
    Modulation device using frequency-shift keying 有权
    调频装置采用频移键控

    公开(公告)号:US07495520B2

    公开(公告)日:2009-02-24

    申请号:US11835821

    申请日:2007-08-08

    Applicant: Pascal Mellot

    Inventor: Pascal Mellot

    CPC classification number: H04L27/12 G06F1/0321 G06F1/0353

    Abstract: A frequency-shift modulation device includes an oscillating circuit, a phase-locked loop and a digital frequency modulation circuit. The oscillating circuit is connected to the phase-locked loop in order to produce a fixed-frequency clock signal. This clock signal is used for timing the frequency modulation circuit. A standard model crystal oscillator can be used in the oscillating circuit, given that the RF frequency of a wireless transmission signal which is produced by the modulation device is determined digitally.

    Abstract translation: 频移调制装置包括振荡电路,锁相环和数字频率调制电路。 振荡电路连接到锁相环,以产生固定频率时钟信号。 该时钟信号用于定时调频电路。 考虑到由调制装置产生的无线传输信号的RF频率是数字确定的,振荡电路中可以使用标准型晶体振荡器。

    FM demodulation and frequency tuning for a phase-locked loop
    9.
    发明授权
    FM demodulation and frequency tuning for a phase-locked loop 失效
    FM解调和频率调谐用于锁相环

    公开(公告)号:US5640126A

    公开(公告)日:1997-06-17

    申请号:US585242

    申请日:1996-01-11

    Applicant: Pascal Mellot

    Inventor: Pascal Mellot

    Abstract: The invention provides a demodulation PLL wherein: the first position of a switch, which is controlled by a control circuit, respectively connects the outputs of a mixer and a LP filter to high gain and low gain inputs of an oscillator when frequency signals at the inputs of the mixer have not converged sufficiently, i.e. during the PLLs tuning mode; the second position of the switch respectively connects the outputs of the mixer and the LP filter to the low gain and high gain inputs of the oscillator when the frequency signals at the inputs of the mixer and the signal levels on the input and output of the filter have converged sufficiently, i.e. during the PLLs demodulation mode.

    Abstract translation: 本发明提供一种解调PLL,其中:由控制电路控制的开关的第一位置分别在混频器和LP滤波器的输出端连接到振荡器的高增益和低增益输入端,当输入端的频率信号 的混频器没有充分收敛,即在PLL调谐模式期间; 当混频器输入端的频率信号和滤波器的输入和输出信号电平时,开关的第二位置分别将混频器和LP滤波器的输出端连接到振荡器的低增益和高增益输入 已经充分收敛,即在PLL解调模式期间。

    Method of detecting the movement of an entity equipped with an image sensor and device for implementing same
    10.
    发明授权
    Method of detecting the movement of an entity equipped with an image sensor and device for implementing same 有权
    检测配备有图像传感器的实体的移动的方法和用于实现图像传感器的装置

    公开(公告)号:US08300015B2

    公开(公告)日:2012-10-30

    申请号:US11480263

    申请日:2006-06-30

    Applicant: Pascal Mellot

    Inventor: Pascal Mellot

    CPC classification number: G06F3/0317 G06F3/03543 G06T7/223

    Abstract: In relation to a current image from a sequence of images captured by an image sensor, in a first step, a temporary motion vector is determined as a function of reference data comprising a preceding image and a motion vector associated to the preceding image. Then, in a second step, if the temporary motion vector does not satisfy a reliability criterion, the first step is repeated in relation to a following image, on the basis of the same reference data. Otherwise, the temporary motion vector is associated with the current image.

    Abstract translation: 关于来自图像传感器捕获的图像序列的当前图像,在第一步骤中,根据包括先前图像和与前一图像相关联的运动矢量的参考数据来确定临时运动矢量。 然后,在第二步骤中,如果临时运动矢量不满足可靠性标准,则基于相同的参考数据,相对于后续图像重复第一步骤。 否则,临时运动矢量与当前图像相关联。

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