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21. 发明申请

US20070067553A1 Design of a signal switch 审中-公开
标题翻译：信号开关设计
公开(公告)号：US20070067553A1
公开(公告)日：2007-03-22
申请号：US11216649
申请日：2005-09-01
申请人： Chi-Tung Chang
发明人： Chi-Tung Chang
IPC分类号： G06F13/00
CPC分类号： G06F13/4072
摘要： The present invention provides an improved design of the signal switch, wherein the signal switch comprises at least one combinational logic such as a chip, a plurality of hosts and at least one set of input control device such as a keyboard and a mouse. The chip can further comprise one or more virtual keyboard controller and a plurality of hubs and a multiplexer. The multiplexer of the present invention is utilized to detect and interpret signals. The present invention utilizes the combinational logic design of the chips and the multiplexer to provide a signal switch that can share multi-upstream devices but less downstream ports, only one set of keyboard and mouse is required. Multiplexing downstream devices among multiple hubs, which are dedicated to upstream hosts, help reducing the whole enumeration process of time. The signal switch of the present invention provides an improved design by replacing the central processing units (CPU) of a conventional design of signal switch with the combinational logics such as chips in order to increase the speed of the enumeration, as a result, the enumerating time is thus reduced.
摘要翻译：本发明提供了信号开关的改进设计，其中信号开关包括至少一个组合逻辑，例如芯片，多个主机以及至少一组诸如键盘和鼠标之类的输入控制装置。芯片还可以包括一个或多个虚拟键盘控制器和多个集线器以及多路复用器。本发明的复用器用于检测和解释信号。本发明利用芯片和复用器的组合逻辑设计来提供可以共享多上游设备但较少下游端口的信号交换机，仅需要一组键盘和鼠标。专用于上游主机的多个集线器之间的多路复用下游设备有助于减少整个计时过程。本发明的信号开关通过用诸如芯片的组合逻辑代替信号开关的常规设计的中央处理单元（CPU）来提供改进的设计，以便增加枚举的速度，结果是枚举因此减少了时间。

22. 发明申请

US20050114570A1 Portable data storage device 审中-公开
标题翻译：便携式数据存储设备
公开(公告)号：US20050114570A1
公开(公告)日：2005-05-26
申请号：US10720853
申请日：2003-11-21
申请人： Chi-Tung Chang , Hung-Chou Tsai
发明人： Chi-Tung Chang , Hung-Chou Tsai
IPC分类号： G06F13/12 , G06K19/077
CPC分类号： G06K19/077 , G06K19/07732
摘要： A portable data storage device mainly includes a universal serial bus (USB) connector; a volatile memory for reading, writing, and storing data; a control chip connected between the USB connector and the volatile memory for serving as a transmission interface with an external electronic apparatus; a charging battery for providing power needed by the volatile memory to store data; and a battery charging circuit connected between the USB connector and the charging battery for charging the charging battery, so that the portable data storage device has increased data processing speed and may be produced at lowered cost.
摘要翻译：便携式数据存储装置主要包括通用串行总线（USB）连接器; 用于读取，写入和存储数据的易失性存储器; 连接在USB连接器和易失性存储器之间的控制芯片，用作与外部电子设备的传输接口; 用于提供易失性存储器所需的电力以存储数据的充电电池; 以及连接在USB连接器和充电电池之间用于对充电电池充电的电池充电电路，使得便携式数据存储装置具有增加的数据处理速度并且可以以降低的成本生产。

23. 发明申请

US20110134278A1 IMAGE/AUDIO DATA SENSING MODULE AND IMAGE/AUDIO DATA SENSING METHOD 审中-公开
标题翻译：图像/音频数据传感模块和图像/音频数据传感方法
公开(公告)号：US20110134278A1
公开(公告)日：2011-06-09
申请号：US12719861
申请日：2010-03-09
申请人： Chi-Tung Chang , Wen-Chao Tseng , I-Chieh Lin
发明人： Chi-Tung Chang , Wen-Chao Tseng , I-Chieh Lin
IPC分类号： H04N5/76
CPC分类号： H04N21/422 , H04N5/772 , H04N21/42203 , H04N21/4223 , H04N21/42692 , H04N21/4344 , H04N21/436
摘要： An image/audio data sensing module incorporated in a case of an electronic apparatus. The image/audio data sensing module comprises: at least one image sensor, for sensing an image datum; a plurality of audio sensors, for sensing at least one audio datum; a processor, for processing the image datum and the audio datum according to a control instruction set to generate a processed image data stream and at least one processed audio data stream, and combining the processed image data stream and the processed audio data stream to generate an output data stream following a transceiver interface standard; a transceiver interface, for receiving the control instruction set and transmitting the output data stream via a multiplexing process; and a circuit board, wherein the image sensor, the audio sensors and the transceiver interface are coupled to the circuit board, and the processor is provided on the circuit board.
摘要翻译：一种结合在电子设备的情况下的图像/音频数据感测模块。图像/音频数据感测模块包括：用于感测图像数据的至少一个图像传感器; 多个音频传感器，用于感测至少一个音频数据; 处理器，用于根据控制指令集处理图像数据和音频数据，以产生经处理的图像数据流和至少一个经处理的音频数据流，以及组合经处理的图像数据流和经处理的音频数据流，以产生输出数据流遵循收发器接口标准; 收发器接口，用于经由复用处理接收控制指令集并发送输出数据流; 以及电路板，其中图像传感器，音频传感器和收发器接口耦合到电路板，并且处理器设置在电路板上。

24. 发明申请

US20100124175A1 Apparatus and method for adaptively calculating symbolic start position 审中-公开
标题翻译：自适应计算符号起始位置的装置和方法
公开(公告)号：US20100124175A1
公开(公告)日：2010-05-20
申请号：US12292223
申请日：2008-11-14
申请人： Chi-Tung Chang , Tzu-Wen Sung , Yu-Ling Chen
发明人： Chi-Tung Chang , Tzu-Wen Sung , Yu-Ling Chen
IPC分类号： H04J1/16 , H04L12/56
CPC分类号： H04L7/042 , H04L27/2656 , H04L27/2675 , H04L27/2692
摘要： An apparatus and a method for adaptively calculating a start position of a series of symbols are provided. The method is applied to a frame synchronization circuit that implements the apparatus for calculating the symbolic start position of a packet-switching communication system. Even under the situations such as higher frequency offset, the frequency offset value approaching zero or unstable frequency offset, the frame synchronization circuit using the claimed method still can estimate the symbolic start position. The preferred method includes a first step of retrieving the signals in a unit of packets, and calculating their delay correlation value. Next, a control circuit is incorporated to retrieve multiple groups of symbols, and to set the parameters of the systems as a basis for identifying the system's property. After that, it's to estimate the symbolic start position.
摘要翻译：提供了一种用于自适应地计算一系列符号的开始位置的装置和方法。该方法应用于实现用于计算分组交换通信系统的符号开始位置的装置的帧同步电路。即使在较高的频率偏移，频率偏移值接近零或不稳定的频率偏移的情况下，使用所要求保护的方法的帧同步电路仍然可以估计符号开始位置。优选的方法包括以分组为单位检索信号并计算其延迟相关值的第一步骤。接下来，结合控制电路来检索多组符号，并且将系统的参数设置为用于识别系统属性的基础。之后，它是估计象征性的起始位置。

25. 发明申请

US20100088454A1 Bridging device with power-saving function 审中-公开
标题翻译：桥接装置具有省电功能
公开(公告)号：US20100088454A1
公开(公告)日：2010-04-08
申请号：US12492123
申请日：2009-06-25
申请人： Chi-Tung Chang , Shih-Min Lan , I-Chieh Lin
发明人： Chi-Tung Chang , Shih-Min Lan , I-Chieh Lin
IPC分类号： G06F13/20 , G06F1/32
CPC分类号： G06F1/325 , G06F1/3215 , Y02D50/20
摘要： A bridging device with power-saving function includes first and second interfaces, first and second physical layer processing devices, and a controller. The first interface is utilized for coupling a first external device complying with the first interface. The first external device receives a device request signal, and accordingly sends back a device response signal through the first physical layer processing device. The second interface is utilized for coupling a second external device complying with the second interface. The controller is coupled between the first and the second physical layer processing device for transmitting the device request signal with the predetermined frequency to the first physical layer processing device in order to receive the device response signal. When the controller does not receive the device response signal, the controller turns the second physical layer processing device off.
摘要翻译：具有省电功能的桥接装置包括第一和第二接口，第一和第二物理层处理装置和控制器。第一接口用于耦合符合第一接口的第一外部设备。第一外部设备接收设备请求信号，并因此通过第一物理层处理设备发回设备响应信号。第二接口用于耦合符合第二接口的第二外部设备。控制器耦合在第一和第二物理层处理设备之间，用于将具有预定频率的设备请求信号发送到第一物理层处理设备，以便接收设备响应信号。当控制器没有收到设备响应信号时，控制器关闭第二个物理层处理设备。

26. 发明申请

US20090289118A1 Card reader integrated with touch button control and control chip module thereof 审中-公开
标题翻译：读卡器集成了触摸按钮控制和控制芯片模块
公开(公告)号：US20090289118A1
公开(公告)日：2009-11-26
申请号：US12153457
申请日：2008-05-20
申请人： Chi-Tung Chang , Shih-Min Lan , I-Chieh Lin
发明人： Chi-Tung Chang , Shih-Min Lan , I-Chieh Lin
IPC分类号： G06K7/06
CPC分类号： G06K7/0008
摘要： A card reader integrated with touch button control, which is applicable in an application system, the said card reader comprises: a touch sensing interface, at least a memory card interface, an interface connection unit and a control chip memory. Herein the touch sensing interface consists of plural touch buttons, and the memory card interface is used to connect a memory card. Furthermore, the interface connection unit is connected to a system connection unit of the application system; the control chip module is connected to the touch sensing interface and the memory card interface, and, in terms of the touch sensing interface and the memory card interface, respectively uses different specification of device class to build the connection with the application system in order to perform signal transmission. The card reader is thereby enabled to achieve the objectives of providing features of controlling touch buttons and accessing memory cards.
摘要翻译：一种集成了适用于应用系统的触摸按钮控制的读卡器，所述读卡器包括：触摸感测接口，至少存储卡接口，接口连接单元和控制芯片存储器。这里，触摸感测接口由多个触摸按钮构成，存储卡接口用于连接存储卡。此外，接口连接单元连接到应用系统的系统连接单元; 控制芯片模块连接到触摸感应接口和存储卡接口，并且在触摸感测接口和存储卡接口方面，分别使用不同规格的设备类与应用系统建立连接，以便执行信号传输。因此，读卡器能够实现提供控制触摸按钮和访问存储卡的特征的目的。

27. 发明申请

US20090210608A1 KVM switch and operation method thereof 审中-公开
标题翻译： KVM切换及其操作方法
公开(公告)号：US20090210608A1
公开(公告)日：2009-08-20
申请号：US12155686
申请日：2008-06-09
申请人： Chi-Tung Chang , Jia-Lung Wang , Shih-Min Lan
发明人： Chi-Tung Chang , Jia-Lung Wang , Shih-Min Lan
IPC分类号： G06F13/00
CPC分类号： G06F13/4022 , G06F2213/4004
摘要： A KVM switch and an operation method thereof can share at least one USB device to a plurality of computers, and the computers can directly communicate with the USB device through a switch module. The KVM switch further comprises a microprocessor and a USB controller. When switching in the KVM switch, by using the set information command in USB specification, the microprocessor can control the USB controller to interfere in setting the USB device to become receiving a signal sent by the computer which recognition data is representative. Then, the computers need not execute the enumeration process to recognize the USB device in every switching time. Hence, the KVM switch can improve the compatibility problem and increase switching efficiency.
摘要翻译： KVM切换器及其操作方法可以将多个计算机共享至少一个USB设备，并且计算机可以通过开关模块直接与USB设备进行通信。 KVM切换器还包括微处理器和USB控制器。当切换KVM切换器时，通过使用USB规范中的set information命令，微处理器可以控制USB控制器干扰USB设备的设置，以接收由计算机发送的识别数据代表的信号。然后，计算机不需要在每个切换时间内执行枚举过程来识别USB设备。因此，KVM切换器可以提高兼容性问题，提高切换效率。

28. 发明授权

US07545847B2 Frequency synthesizer applied to frequency hopping system 有权
标题翻译：频率合成器适用于跳频系统
公开(公告)号：US07545847B2
公开(公告)日：2009-06-09
申请号：US11773963
申请日：2007-07-06
申请人： Chi-Tung Chang , Chih-Hao Lai , Chieh-Tsao Hwang
发明人： Chi-Tung Chang , Chih-Hao Lai , Chieh-Tsao Hwang
IPC分类号： H04B1/38
CPC分类号： H03L7/183 , H03B21/025
摘要： A frequency synthesizer applied to a frequency hopping system includes a voltage controlled oscillator (VCO), a phase lock loop (PLL) system, a second frequency divider, a first SSB mixer, a second SSB mixer, and a multiplexer. The VCO generates an oscillating frequency. The PLL system includes a first frequency divider and divides the oscillating frequency by 10 to generate a first dividing signal. The second frequency divider divides the oscillating frequency by 2 to generate a second dividing signal and further divides the second dividing signal by 2 to generate a third dividing signal. The first SSB mixer mixes frequencies of the second and third dividing signals to generate a first mixing signal. The second SSB mixer mixes frequencies of the first mixing signal and the first dividing signal to generate a second mixing signal. The Multiplexer determines to output the first mixing signal or the second mixing signal.
摘要翻译：应用于跳频系统的频率合成器包括压控振荡器（VCO），锁相环（PLL）系统，第二分频器，第一SSB混频器，第二SSB混频器和多路复用器。 VCO产生振荡频率。 PLL系统包括第一分频器，并将振荡频率除以10以产生第一分频信号。第二分频器将振荡频率除以2以产生第二分频信号，并将第二分频信号除以2，以产生第三分频信号。第一SSB混频器混合第二和第三分频信号的频率以产生第一混频信号。第二SSB混频器混合第一混频信号和第一分频信号的频率以产生第二混频信号。多路复用器确定输出第一混频信号或第二混频信号。

29. 发明申请

US20090089349A1 Angle Computation Method and Related Circuit 审中-公开
标题翻译：角度计算方法及相关电路
公开(公告)号：US20090089349A1
公开(公告)日：2009-04-02
申请号：US11941072
申请日：2007-11-15
申请人： Chi-Tung Chang , Hua-Han Lee , Yu-Ling Chen
发明人： Chi-Tung Chang , Hua-Han Lee , Yu-Ling Chen
IPC分类号： G06F7/548
CPC分类号： G06F7/548
摘要： Computing an angle between a real part and an imaginary part of a complex number includes receiving complex number data; generating a first value, a second value and a determination result according to the complex number data; choosing a dividend and a divisor of a division operation from the first value and the second value for generating a division result according to magnitudes of the first value and the second value; performing table look-up for the division result to generate a table look-up result according to a preserved table; and adjusting the table look-up result for generating an angle corresponding to the complex number data according to the determination result.
摘要翻译：计算复数的实部和虚部之间的角度包括接收复数数据; 根据复数数据生成第一值，第二值和确定结果; 从所述第一值和所述第二值中选择除数运算的除数和除数，以根据所述第一值和所述第二值的大小来产生除法结果; 执行表查找划分结果以根据保留表生成表查找结果; 以及根据确定结果调整表查找结果以产生与复数数据对应的角度。

30. 发明授权

US07401195B2 Portable data storage device and method of accessing data thereof 有权
标题翻译：便携式数据存储装置及其访问方法
公开(公告)号：US07401195B2
公开(公告)日：2008-07-15
申请号：US10966801
申请日：2004-10-18
申请人： Chi-Tung Chang , Shih-Hsieng Yang , Hung-Chou Tsai , Ching-Wen Wang
发明人： Chi-Tung Chang , Shih-Hsieng Yang , Hung-Chou Tsai , Ching-Wen Wang
IPC分类号： G06F12/14
CPC分类号： G06F12/1458 , G06F21/6227 , G06F2221/2141
摘要： A portable data storage device includes a control unit coupled via a predetermined interface with a computer having an operating system with user authority limits, and a memory divided into a segment I for storing related applications, a public segment II for temporarily storing instructions and data, and a hidden segment III for saving client data. In a method of accessing data via the portable data storage device, when the computer is to write data into or read data from the segment III, the data to be written or read is first temporarily stored in the segment II, and specific read or write instructions for a read/write level application interface are written into the segment II by the applications in the segment I and executed, so as to complete data exchange and access between the portable data storage device and the computer.
摘要翻译：便携式数据存储装置包括经由预定接口与具有用户权限限制的操作系统的计算机耦合的控制单元，以及被划分成用于存储相关应用的段I的存储器，用于临时存储指令和数据的公共段II，以及用于保存客户端数据的隐藏段III。在通过便携式数据存储装置访问数据的方法中，当计算机将数据写入或从数据段III读取数据时，要写入或读取的数据首先临时存储在段II中，并且进行特定的读或写读/写级应用接口的指令由段I中的应用程序写入段II，并执行，以便完成便携式数据存储设备与计算机之间的数据交换和访问。

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