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公开(公告)号：US20130077818A1
公开(公告)日：2013-03-28
申请号：US13241207
申请日：2011-09-23
IPC分类号： G06K9/00
CPC分类号： G01C21/20
摘要： A detection method of an optical navigation device is disclosed. The device is used for determining whether an object is lifted from the optical navigation device or not. The method includes steps of reading the detection image detected by the optical navigation device, calculating the image signal value thereof during non-lift status, and integrating a historical threshold value with the image signal value according to adaptive factors for generating an adjustment threshold value serving as the navigation threshold of the detection image. The historical threshold value is the navigation threshold of a former detection image of the detection image. A step of comparing the adjustment threshold with the image signal value for determining whether the image signal value passes the navigation threshold or not may also be included. If the image signal value does not pass the navigation threshold, the object is determined as in the lift status.
摘要翻译： 公开了一种光学导航装置的检测方法。 该装置用于确定物体是否从光学导航装置提升。 该方法包括以下步骤：读取由光学导航装置检测到的检测图像，在非提升状态期间计算其图像信号值，并根据用于生成调整阈值的适应性因子将历史阈值与图像信号值进行积分 作为检测图像的导航阈值。 历史阈值是检测图像的前检测图像的导航阈值。 还可以包括将调整阈值与用于确定图像信号值是否通过导航阈值的图像信号值进行比较的步骤。 如果图像信号值未通过导航阈值，则该对象被确定为在升降状态。
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公开(公告)号：US08067992B2
公开(公告)日：2011-11-29
申请号：US12134323
申请日：2008-06-06
申请人： Alex Jianzhong Chen , Gim Eng Chew , Tong Tee Tan , Kok Chin Pan
发明人： Alex Jianzhong Chen , Gim Eng Chew , Tong Tee Tan , Kok Chin Pan
IPC分类号： H03K3/26
CPC分类号： H03K3/011 , H03K3/0231
摘要： Disclosed are various embodiments of temperature-compensated relaxation oscillator circuits that may be fabricated using conventional CMOS manufacturing techniques. The relaxation oscillator circuits described herein exhibit superior low temperature coefficient performance characteristics, and do not require the use of expensive off-chip high precision resistors to effect temperature compensation. Positive and negative temperature coefficient resistors arranged in a resistor array offset one another to provide temperature compensation in the relaxation oscillator circuit.
摘要翻译： 公开了可以使用常规CMOS制造技术制造的温度补偿张弛振荡器电路的各种实施例。 本文描述的张弛振荡器电路表现出优异的低温系数性能特性，并且不需要使用昂贵的片外高精度电阻器来实现温度补偿。 布置在电阻器阵列中的正和负温度系数电阻彼此偏移以在张弛振荡器电路中提供温度补偿。
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公开(公告)号：US20130076693A1
公开(公告)日：2013-03-28
申请号：US13241204
申请日：2011-09-23
IPC分类号： G06F3/042
CPC分类号： G06F3/0354 , G06F3/042
摘要： A tapping detection method of an optical navigation module is disclosed. The module includes an optical sensor and a processor. The method includes steps of calculating a displacement quantity of an object contacting with the optical navigation module according to a sense image sensed by the optical sensor, and comparing the displacement quantity with a displacement threshold value. When the displacement quantity is smaller than the displacement threshold value, the method further includes steps of calculating a brightness difference value of the sense image, and comparing the brightness difference value with a brightness threshold value. When the brightness difference value is smaller than the brightness threshold value, the optical navigation module may be determined to be tapped by the object.
摘要翻译： 公开了一种光学导航模块的敲击检测方法。 该模块包括光学传感器和处理器。 该方法包括根据由光学传感器感测到的感测图像计算与光学导航模块接触的物体的位移量，并将位移量与位移阈值进行比较的步骤。 当位移量小于位移阈值时，该方法还包括以下步骤：计算感测图像的亮度差值，并将亮度差值与亮度阈值进行比较。 当亮度差值小于亮度阈值时，可以确定光学导航模块被物体挖掘。
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公开(公告)号：US20090302954A1
公开(公告)日：2009-12-10
申请号：US12134323
申请日：2008-06-06
申请人： Alex Jianzhong Chen , Gim Eng Chew , Tong Tee Tan , Kok Chin Pan
发明人： Alex Jianzhong Chen , Gim Eng Chew , Tong Tee Tan , Kok Chin Pan
CPC分类号： H03K3/011 , H03K3/0231
摘要： Disclosed are various embodiments of temperature-compensated relaxation oscillator circuits that may be fabricated using conventional CMOS manufacturing techniques. The relaxation oscillator circuits described herein exhibit superior low temperature coefficient performance characteristics, and do not require the use of expensive off-chip high precision resistors to effect temperature compensation. Positive and negative temperature coefficient resistors arranged in a resistor array offset one another to provide temperature compensation in the relaxation oscillator circuit.
摘要翻译： 公开了可以使用常规CMOS制造技术制造的温度补偿张弛振荡器电路的各种实施例。 本文描述的张弛振荡器电路表现出优异的低温系数性能特性，并且不需要使用昂贵的片外高精度电阻器来实现温度补偿。 布置在电阻器阵列中的正和负温度系数电阻彼此偏移以在张弛振荡器电路中提供温度补偿。
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公开(公告)号：US07493530B2
公开(公告)日：2009-02-17
申请号：US10606970
申请日：2003-06-25
申请人： Tong Tee Tan
发明人： Tong Tee Tan
CPC分类号： H04L1/0045 , H04L1/0061
摘要： An error detector for a pseudo-random bit sequence (PRBS). A plurality of bits of a PRBS are received in a predictor circuit. A comparator compares two of the bits to predict a next bit in the sequence. The predicted next bit is compared with the actual next bit that is received to determine if there is an error in the actual next bit, and if so, the actual next bit is corrected accordingly. The erroneous actual next bit is replaced with the corrected actual next bit and is then used to predict a future actual next bit. A trigger circuit delays correction during initial operation until the predictor contains a bit sequence in which no errors have been detected.
摘要翻译： 用于伪随机位序列（PRBS）的误差检测器。 PRBS的多个比特在预测器电路中被接收。 比较器比较两个比特以预测序列中的下一个比特。 将预测的下一位与接收的实际下一位进行比较，以确定实际下一位是否存在错误，如果是，则相应地修正实际的下一位。 错误的实际下一位被修正的实际下一位替换，然后用于预测将来的实际下一位。 触发电路在初始操作期间延迟校正，直到预测器包含未检测到错误的位序列。
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公开(公告)号：US20080111581A1
公开(公告)日：2008-05-15
申请号：US11627458
申请日：2007-01-26
申请人： King Wai Wong , Tong Tee Tan
发明人： King Wai Wong , Tong Tee Tan
IPC分类号： H03K19/173
CPC分类号： H03K19/177
摘要： An application-specific integrated circuit (ASIC) for use with a programmable I/O module includes programmable circuitry that enables the ASIC to be configured to support various different I/O functions. The ASIC includes a pin interface, a data interface, a digital section, and an analog section. The pin interface supports analog and digital signal communication and the data interface supports digital data communication. The digital section includes registers for storing digital data such as configuration commands, signal control commands, and digital signal information. The analog section is in electrical signal communication with pin interface and digital data communication with the registers. The analog section includes multiple function-specific elements for processing an electrical signal that is communicated via the pin interface such that the analog section can be configured to establish one of multiple different function-specific processing paths in response to a configuration command received via the data interface.
摘要翻译： 与可编程I / O模块一起使用的专用集成电路（ASIC）包括可编程电路，使ASIC能够配置为支持各种不同的I / O功能。 ASIC包括引脚接口，数据接口，数字部分和模拟部分。 引脚接口支持模拟和数字信号通信，数据接口支持数字数据通信。 数字部分包括用于存储诸如配置命令，信号控制命令和数字信号信息的数字数据的寄存器。 模拟部分与引脚接口进行电信号通信，并与寄存器进行数字数据通信。 模拟部分包括用于处理通过引脚接口传送的电信号的多个功能特定元件，使得模拟部分可以被配置为响应于经由数据接收到的配置命令来建立多个不同的功能特定处理路径中的一个 接口。
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公开(公告)号：US20130076880A1
公开(公告)日：2013-03-28
申请号：US13241459
申请日：2011-09-23
CPC分类号： G06K9/00026
摘要： An image processing method includes the following steps. The first step is utilizing a linear image capturing apparatus with odd number of image capturing units to capture image portions of object. Next step is taking the image portions which are captured by the first-end and the right-end image capturing units as the reference and comparing the image portions which are captured by the central image capturing units with the reference so as to correct and eliminate the overlapped noise. Next step is interlacing and re-constructing the processed image portions which have no overlapped portions as the integrated image.
摘要翻译： 图像处理方法包括以下步骤。 第一步是利用具有奇数个图像捕获单元的线性图像捕获装置来捕获对象的图像部分。 下一步是将由第一端和右端图像捕获单元捕获的图像部分作为参考，并将由中央图像捕获单元捕获的图像部分与参考进行比较，以便校正和消除 重叠噪声。 下一步是将没有重叠部分的经处理的图像部分交织并重新构造为集成图像。
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公开(公告)号：US07881323B2
公开(公告)日：2011-02-01
申请号：US11627458
申请日：2007-01-26
申请人： King Wai Wong , Tong Tee Tan
发明人： King Wai Wong , Tong Tee Tan
CPC分类号： H03K19/177
摘要： An application-specific integrated circuit (ASIC) for use with a programmable I/O module includes programmable circuitry that enables the ASIC to be configured to support various different I/O functions. The ASIC includes a pin interface, a data interface, a digital section, and an analog section. The pin interface supports analog and digital signal communication and the data interface supports digital data communication. The digital section includes registers for storing digital data such as configuration commands, signal control commands, and digital signal information. The analog section is in electrical signal communication with pin interface and digital data communication with the registers. The analog section includes multiple function-specific elements for processing an electrical signal that is communicated via the pin interface such that the analog section can be configured to establish one of multiple different function-specific processing paths in response to a configuration command received via the data interface.
摘要翻译： 与可编程I / O模块一起使用的专用集成电路（ASIC）包括可编程电路，使ASIC能够配置为支持各种不同的I / O功能。 ASIC包括引脚接口，数据接口，数字部分和模拟部分。 引脚接口支持模拟和数字信号通信，数据接口支持数字数据通信。 数字部分包括用于存储诸如配置命令，信号控制命令和数字信号信息的数字数据的寄存器。 模拟部分与引脚接口进行电信号通信，并与寄存器进行数字数据通信。 模拟部分包括用于处理通过引脚接口传送的电信号的多个功能特定元件，使得模拟部分可以被配置为响应于经由数据接收到的配置命令来建立多个不同的功能特定处理路径中的一个 接口。
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