专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09095041B2 Method and apparatus for reducing interference 有权
公开(公告)号：US09095041B2
公开(公告)日：2015-07-28
申请号：US11930804
申请日：2007-10-31
申请人： David R. Welland , Donald A. Kerth , Caiyi Wang
发明人： David R. Welland , Donald A. Kerth , Caiyi Wang
IPC分类号： H03K5/00 , H05K9/00 , H03L7/18 , H05K1/02 , H05K3/10
CPC分类号： H05K9/00 , H03L7/18 , H05K1/0216 , H05K3/10 , Y10T29/49124
摘要： A method and apparatus is provided for reducing interference in circuits. A management strategy is provided to reduce reference spurs and interference in circuits. The management strategy uses a combination of one or more techniques which reduce the digital current, minimize mutual inductance, utilize field cancellation, prevent leakage current, and/or manage impedance. These techniques may be used alone, or preferably, used on combination with one another.

2. 发明申请

US20120169659A1 APPARATUS FOR CAPACITANCE SENSOR WITH INTERFERENCE REJECTION AND ASSOCIATED METHODS 审中-公开
标题翻译：具有干扰抑制和相关方法的电容传感器装置
公开(公告)号：US20120169659A1
公开(公告)日：2012-07-05
申请号：US13335407
申请日：2011-12-22
申请人： David R. Welland
发明人： David R. Welland
IPC分类号： G06F3/045
CPC分类号： G06F3/044 , G06F3/0416
摘要： A method for interfacing with a capacitive touch screen is disclosed. The method includes charging an internal capacitor in the touch screen, which internal capacitor is disposed proximate a fixed location on the touch screen and is capable of changing in response to a touch at that location on the touch screen. After charging, value of the charge on the internal capacitor is determined in a manner to reduce effects of interference.
摘要翻译：公开了一种用于与电容式触摸屏接口的方法。该方法包括对触摸屏中的内部电容器进行充电，该内部电容器设置在触摸屏上的固定位置附近，并且能够响应于触摸屏上该位置处的触摸而改变。充电后，以减少干扰影响的方式确定内部电容器的电荷值。

3. 发明授权

US08154336B2 Method and apparatus for reducing interference 有权
标题翻译：减少干扰的方法和装置
公开(公告)号：US08154336B2
公开(公告)日：2012-04-10
申请号：US11930596
申请日：2007-10-31
申请人： David R. Welland , Donald A. Kerth , Caiyi Wang
发明人： David R. Welland , Donald A. Kerth , Caiyi Wang
IPC分类号： H03K5/00
CPC分类号： H05K9/00 , H03L7/18 , H05K1/0216 , H05K3/10 , Y10T29/49124
摘要： A method and apparatus is provided for reducing interference in circuits. A management strategy is provided to reduce reference spurs and interference in circuits. The management strategy uses a combination of one or more techniques which reduce the digital current, minimize mutual inductance, utilize field cancellation, prevent leakage current, and/or manage impedance. These techniques may be used alone, or preferably, used on combination with one another.
摘要翻译：提供一种减少电路干扰的方法和装置。提供管理策略，以减少参考杂散和电路干扰。管理策略使用一种或多种减少数字电流，最小化互感，利用场消除，防止泄漏电流和/或管理阻抗的技术的组合。这些技术可以单独使用，或者优选地彼此组合使用。

4. 发明申请

US20100102876A1 METHOD AND APPARATUS FOR REDUCING INTERFERENCE 审中-公开
公开(公告)号：US20100102876A1
公开(公告)日：2010-04-29
申请号：US12650545
申请日：2009-12-31
申请人： David R. Welland , Donald A. Kerth , Caiyi Wang
发明人： David R. Welland , Donald A. Kerth , Caiyi Wang
IPC分类号： H03B1/04
CPC分类号： H05K9/00 , H03L7/18 , H05K1/0216 , H05K3/10 , Y10T29/49124
摘要： A method and apparatus is provided for reducing interference in circuits. A management strategy is provided to reduce reference spurs and interference in circuits. The management strategy uses a combination of one or more techniques which reduce the digital current, minimize mutual inductance, utilize field cancellation, prevent leakage current, and/or manage impedance. These techniques may be used alone, or preferably, used on combination with one another.

5. 发明授权

US07522193B2 Histogram-based automatic gain control method and system for video applications 有权
标题翻译：基于直方图的自动增益控制方法和视频应用系统
公开(公告)号：US07522193B2
公开(公告)日：2009-04-21
申请号：US10862488
申请日：2004-06-07
申请人： Nadi R. Itani , Caiyi Wang , David R. Welland
发明人： Nadi R. Itani , Caiyi Wang , David R. Welland
IPC分类号： H04N5/235 , H04N5/228 , H04N5/217
CPC分类号： H04N5/2352
摘要： An image processor system for a charge coupled device (CCD) or CMOS imaging system includes a histogram-based automatic gain control (AGC) circuit which first controls gain by adjusting said CCD system and then for yet a higher gain level makes gain adjustments in said CDSVGA circuit and a digital gain circuit to produce a combined target gain level. A processing system for an imager device includes a camera system for producing an imager signal, a correlated double sample (CDS) circuit for receiving data from an imager, a variable gain amplifier (VGA), an analog-to-digital converter (ADC) coupled to said CDS circuit, a digital gain circuit (DGC) coupled to said ADC, and an automatic gain control (AGC) circuit coupled to said DGC for controlling the CDS circuit and the DGC, as well as shutter timing for shutter gain.
摘要翻译：用于电荷耦合器件（CCD）或CMOS成像系统的图像处理器系统包括基于直方图的自动增益控制（AGC）电路，其首先通过调整所述CCD系统来控制增益，然后对于较高的增益电平进行增益，使所述 CDSVGA电路和数字增益电路，以产生组合的目标增益电平。一种用于成像器件的处理系统包括用于产生成像器信号的相机系统，用于从成像器接收数据的相关双样本（CDS）电路，可变增益放大器（VGA），模数转换器（ADC）耦合到所述CDS电路，耦合到所述ADC的数字增益电路（DGC）以及耦合到所述DGC的用于控制CDS电路和DGC的自动增益控制（AGC）电路以及用于快门增益的快门定时。

6. 发明授权

US07515672B2 Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with programmable current limiting 失效
标题翻译：用于连接到具有可编程限流的DC保持电路的电话线路的数字接入配置电路和方法
公开(公告)号：US07515672B2
公开(公告)日：2009-04-07
申请号：US10679013
申请日：2003-10-03
申请人： Timothy J. Dupuis , George Tyson Tuttle , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： Timothy J. Dupuis , George Tyson Tuttle , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H04L23/00
CPC分类号： H04L25/06 , H04L7/033 , H04L25/0266 , H04M11/06 , H04M19/001
摘要： A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines. Briefly described, the DAA provides a programmable circuit for the DC termination for a variety of international phone standards. The invention may also be utilized with circuitry for transmitting and receiving a signal across a capacitive isolation barrier. More particularly, a DC holding circuit is provided in which a programmable DC current limiting mode is available. In the current limiting mode, power may be dissipated in devices external to a DAA integrated circuit. Moreover, much of the power may be dissipated in external passive devices, such as resistors.
摘要翻译：可以使用数字直接访问布置（DAA）电路来终止在用户端的电话连接，其提供用于到达和来自电话线的信号的通信路径。简要描述，DAA为各种国际电话标准的DC终端提供可编程电路。本发明还可以用于跨电容隔离屏障发送和接收信号的电路。更具体地，提供了一种DC可编程直流限流模式可用的直流保持电路。在限流模式下，功率可能会在DAA集成电路外部的器件中耗散。此外，大部分功率可能会在外部无源器件（如电阻）中消散。

7. 发明授权

US07362841B2 Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with switchable DC termination impedance 失效
标题翻译：用于连接到具有可切换DC终端阻抗的DC保持电路的电话线路的数字接入布置电路和方法
公开(公告)号：US07362841B2
公开(公告)日：2008-04-22
申请号：US10292290
申请日：2002-11-12
申请人： Timothy J. Dupuis , George Tyson Tuttle , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： Timothy J. Dupuis , George Tyson Tuttle , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H04L23/00
CPC分类号： H04L25/06 , H04L7/033 , H04L25/0266 , H04M11/06 , H04M19/001
摘要： A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines. Briefly described, the DAA provides a programmable means for the DC termination for a variety of international phone standards. The invention may also be utilized with means for transmitting and receiving a signal across a capacitive isolation barrier. More particularly, a DC holding circuit is provided in which a programmable DC current limiting mode is available. In the current limiting mode, power may be dissipated in devices external to a DAA integrated circuit. Moreover, much of the power may be dissipated in external passive devices, such as resistors.
摘要翻译：可以使用数字直接访问布置（DAA）电路来终止在用户端的电话连接，其提供用于到达和来自电话线的信号的通信路径。简要描述，DAA提供用于各种国际电话标准的DC终端的可编程装置。本发明还可以用于在电容隔离屏障上传输和接收信号的装置。更具体地，提供了一种DC可编程直流限流模式可用的直流保持电路。在限流模式下，功率可能会在DAA集成电路外部的器件中耗散。此外，大部分功率可能会在外部无源器件（如电阻）中消散。

8. 发明授权

US07289145B2 Correlated double sampling variable gain amplifier circuit for use in a digital camera 有权
标题翻译：用于数码相机的相关双倍可变增益放大器电路
公开(公告)号：US07289145B2
公开(公告)日：2007-10-30
申请号：US11415000
申请日：2006-05-01
申请人： Sandra Marie Johnson , Shih-Chung Chao , Nadi Rafik Itani , Caiyi Wang , Brannon Craig Harris , Ash Prabala , Douglas R. Holberg , Alan Hansford , Syed Khalid Azim , David R. Welland
发明人： Sandra Marie Johnson , Shih-Chung Chao , Nadi Rafik Itani , Caiyi Wang , Brannon Craig Harris , Ash Prabala , Douglas R. Holberg , Alan Hansford , Syed Khalid Azim , David R. Welland
IPC分类号： H04N5/235
CPC分类号： H04N5/3575 , H04N5/335 , H04N5/361
摘要： An image processor system for a charge coupled device (CCD) or CMOS imaging system includes a correlated double sample and variable gain (CDSVGA) circuit for receiving data from a CCD system and an automatic gain control (AGC) circuit which first controls gain by adjusting said CCD system and then for yet a higher gain level makes gain adjustments in said CDSVGA circuit AND a digital gain circuit to produce a combined target gain level. A processing system for an imager device includes a camera system for producing an imager signal, a correlated double sample (CDS) circuit for receiving data from an imager, a variable gain amplifier (VGA), an analog-to-digital converter (ADC) coupled to said CDS circuit, a digital gain circuit (DGC) coupled to said ADC, and an automatic gain control (AGC) circuit coupled to said DGC for controlling the CDS circuit and the DGC. The processing circuitry includes an analog front end and a digital signal processing system for capturing full motion video and outputting a CCIR 601 4:2:2 YCrCb video data output for presentation on a user selected display.
摘要翻译：用于电荷耦合器件（CCD）或CMOS成像系统的图像处理器系统包括用于从CCD系统接收数据的相关双样本和可变增益（CDSVGA）电路以及首先通过调整来控制增益的自动增益控制（AGC）电路所述CCD系统然后为了更高的增益水平，使得所述CDSVGA电路和数字增益电路中的增益调整产生组合的目标增益电平。一种用于成像器件的处理系统包括用于产生成像器信号的相机系统，用于从成像器接收数据的相关双样本（CDS）电路，可变增益放大器（VGA），模数转换器（ADC）耦合到所述CDS电路，耦合到所述ADC的数字增益电路（DGC）以及耦合到所述DGC的用于控制CDS电路和DGC的自动增益控制（AGC）电路。处理电路包括模拟前端和数字信号处理系统，用于捕获全运动视频并输出CCIR 601 4：2：2 YCrCb视频数据输出以便呈现在用户选择的显示器上。

9. 发明授权

US07092675B2 Apparatus and methods for generating radio frequencies in communication circuitry using multiple control signals 有权
标题翻译：在使用多个控制信号的通信电路中产生无线电频率的设备和方法
公开(公告)号：US07092675B2
公开(公告)日：2006-08-15
申请号：US10075098
申请日：2002-02-13
申请人： Lysander Lim , Caiyi Wang , David R. Welland , Donald A. Kerth , Richard T. Behrens , Jeffrey W. Scott , G. Diwakar Vishakhadatta , G. Tyson Tuttle , Vishnu S. Srinivasan
发明人： Lysander Lim , Caiyi Wang , David R. Welland , Donald A. Kerth , Richard T. Behrens , Jeffrey W. Scott , G. Diwakar Vishakhadatta , G. Tyson Tuttle , Vishnu S. Srinivasan
IPC分类号： H04B1/40
CPC分类号： H03L7/085 , H03L7/087 , H03L7/091 , H03L7/099 , H03L7/187 , H03L7/199 , H03L7/23 , H04B1/0003 , H04B1/28 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A radio-frequency (RF) apparatus capable of transmitting RF signals includes transmitter path circuitry. The transmitter path circuitry includes a voltage-controlled oscillator (VCO) that generates an output signal. The frequency of the output signal of the VCO circuitry is adjustable in response to a first control signal and a second control signal. The transmitter path circuitry also includes a first feedback circuitry and a second feedback circuitry that are responsive to the output signal of the VCO circuitry. The first feedback circuitry provides the first control signal to the VCO circuitry. The first control signal coarsely adjusts the frequency of the output signal of the VCO circuitry to a desired frequency. The second feedback circuitry supplies the second control signal to the VCO circuitry. The second control signal fine tunes the frequency of the output signal of the voltage-controlled oscillator circuitry to the desired frequency.
摘要翻译：能够发送RF信号的射频（RF）装置包括发射机路径电路。发射机路径电路包括产生输出信号的压控振荡器（VCO）。 VCO电路的输出信号的频率可响应于第一控制信号和第二控制信号而调节。发射机路径电路还包括响应于VCO电路的输出信号的第一反馈电路和第二反馈电路。第一反馈电路向VCO电路提供第一控制信号。第一控制信号粗略地将VCO电路的输出信号的频率调整到期望的频率。第二反馈电路将第二控制信号提供给VCO电路。第二控制信号将压控振荡器电路的输出信号的频率调谐到期望的频率。

10. 发明授权

US06903617B2 Method and apparatus for synthesizing high-frequency signals for wireless communications 有权
公开(公告)号：US06903617B2
公开(公告)日：2005-06-07
申请号：US10081730
申请日：2002-02-22
申请人： Lysander Lim , David R. Welland , John B. Pavelka , Edmund G. Healy
发明人： Lysander Lim , David R. Welland , John B. Pavelka , Edmund G. Healy
IPC分类号： H01L23/66 , H03B5/00 , H03L7/099 , H03L7/10 , H03L7/18 , H03L7/199 , H03K3/02
CPC分类号： H03L7/10 , H01L23/66 , H01L24/48 , H01L24/49 , H01L2223/6611 , H01L2224/05554 , H01L2224/16 , H01L2224/16225 , H01L2224/48091 , H01L2224/48227 , H01L2224/48247 , H01L2224/49113 , H01L2224/49171 , H01L2924/00014 , H01L2924/01006 , H01L2924/01015 , H01L2924/014 , H01L2924/14 , H01L2924/15192 , H01L2924/15311 , H01L2924/15787 , H01L2924/181 , H01L2924/19041 , H01L2924/19042 , H01L2924/30105 , H01L2924/30107 , H03L7/099 , H03L7/18 , H03L7/199 , H01L2924/00 , H01L2224/45099 , H01L2224/05599 , H01L2924/00012 , H01L2224/0401
摘要： A semiconductor package includes a package substrate and an integrated circuit. The package substrate has a first surface. The integrated circuit couples electrically to the first surface of the package substrate. The integrated circuit and the package substrate together form the semiconductor package. The semiconductor package also includes a first inductance circuit and a second inductance circuit, both formed within the semiconductor package. The first and second inductance circuits couple to each other in parallel. The first and second inductance circuits have substantially symmetrical geometric characteristics.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式