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    Cellular handset with adjustable analog to digital conversion
    2.
    发明授权
    Cellular handset with adjustable analog to digital conversion 有权
    手机具有可调模数转换功能

    公开(公告)号：US06532370B1

    公开(公告)日：2003-03-11

    申请号：US09410205

    申请日：1999-09-30

    申请人： Paul A. Underbrink ,  Kelly H. Hale ,  Guang-Ming Yin ,  Patrick D. Ryan ,  Joseph H. Colles ,  Daryush Shamlou

    发明人： Paul A. Underbrink ,  Kelly H. Hale ,  Guang-Ming Yin ,  Patrick D. Ryan ,  Joseph H. Colles ,  Daryush Shamlou

    IPC分类号： H04B138

    CPC分类号： H03M1/004 ,  H03M1/007 ,  H03M1/44 ,  H04B1/406 ,  H04W88/06

    摘要： A cell phone is provided that may be used with multiple radio formats, such as GSM and CDMA. The cell phone includes a receiver that receives radio signals and converts them into electrical signals. An analog to digital converter is connected to the receiver and converts an analog input to a digital output having an adjustable number of bits at an adjustable sampling frequency. A cell phone application specific integrated circuit is connected to the analog to digital converter, which is used to process the digital output to extract encoded telecommunications data in one of the supported radio formats.

    摘要翻译： 提供了可以与诸如GSM和CDMA之类的多种无线电格式一起使用的手机。 手机包括接收无线电信号并将其转换成电信号的接收机。 模拟数字转换器连接到接收器，并将模拟输入转换成具有可调节采样频率的可调节位数的数字输出。 手机应用专用集成电路连接到模拟数字转换器，用于处理数字输出以以支持的无线电格式之一提取编码的电信数据。

    Method and apparatus for producing a modulated signal
    6.
    发明授权
    Method and apparatus for producing a modulated signal 有权
    用于产生调制信号的方法和装置

    公开(公告)号：US06754287B2

    公开(公告)日：2004-06-22

    申请号：US09814196

    申请日：2001-03-21

    申请人： Paul A. Underbrink ,  Daryush Shamlou ,  Ricke W. Clark ,  Joseph H. Colles ,  Guangming Yin ,  Patrick D. Ryan ,  Kelly H. Hale

    发明人： Paul A. Underbrink ,  Daryush Shamlou ,  Ricke W. Clark ,  Joseph H. Colles ,  Guangming Yin ,  Patrick D. Ryan ,  Kelly H. Hale

    IPC分类号： H04L2720

    CPC分类号： H03F3/217 ,  H03F2200/331 ,  H04L27/2046

    摘要： Communications systems, and particularly portable personal communications systems, such as portable phones, are becoming increasingly digital. One area that has remained largely analog, however, is the modulation and RF amplifier circuits. To produce a RF frequency waveform. An output of a class D amplifier is coupled to an integrator to create an analog signal. A resonant circuit shapes an output waveform based on the analog signal to create a sinusoidal RF broadcast signal. The waveform of the class D amplifier may be duty cycle modulated. Digital modulation may occur using a digital sigma delta modulator or a digital programmable divide modulator. Using the digital modulation techniques and class D amplification techniques together allows for broadcast a PSK signal that has been decomposed into amplitude and phase components.

    摘要翻译： 通信系统，特别是诸如便携式电话的便携式个人通信系统正在变得越来越数字化。 然而，仍然是模拟的一个领域是调制和RF放大器电路。 产生RF频率波形。 D类放大器的输出耦合到积分器以产生模拟信号。 谐振电路基于模拟信号对输出波形进行整形以产生正弦RF广播信号。 D类放大器的波形可以是占空比调制的。 可以使用数字Σ-Δ调制器或数字可编程分频调制器进行数字调制。 一起使用数字调制技术和D类放大技术可以广播已经分解为幅度和相位分量的PSK信号。

    Critical path adaptive power control
    7.
    发明授权
    Critical path adaptive power control 有权

    公开(公告)号：US06535735B2

    公开(公告)日：2003-03-18

    申请号：US09814921

    申请日：2001-03-22

    申请人： Paul A. Underbrink ,  Daryush Shamlou ,  Ricke W. Clark ,  Joseph H. Colles ,  Guangming Yin ,  Patrick D. Ryan ,  Kelly H. Hale

    发明人： Paul A. Underbrink ,  Daryush Shamlou ,  Ricke W. Clark ,  Joseph H. Colles ,  Guangming Yin ,  Patrick D. Ryan ,  Kelly H. Hale

    IPC分类号： H04Q720

    CPC分类号： G06F1/3203 ,  G06F1/324 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172

    摘要： Modern digital integrated circuits are commonly synchronized in their workings by clock circuits. The clock frequency for a circuit must take into account the propagation delay of signals within the critical path of the circuit. If the clock time is not adequate to allow propagation of signals through the critical path, improper circuit operation may result. The propagation delay is not a constant from circuit to circuit, and even in a single circuit may change due to temperature, power supply voltage and the like. Commonly, this variation is handled by assuming a worse case propagation delay of the critical path, and then designing the clock frequency and minimum power supply voltage of the circuit so that the circuit will function under worst case conditions. However, instead of assuming a worse case propagation delay of the critical path, the propagation delay may be measured in an actual circuit path that has been constructed to be the equivalent to, or slightly worse than, the propagation delay of the critical path. By knowing the actual worst case propagation delay, the circuit may be modified to operate with lower power supply voltages, conserving power and/or to controlling the frequency of the clock, so that the clock may be operated at or near the circuit's actual, not theoretical worst case limit. Such modifications of power supply voltage and/or clock frequency may occur during circuit operation and thus, adapt the circuit to the different operating parameters of each circuit.

    Method and apparatus for sensing an audio signal that is sensitive to the audio signal and insensitive to background noise
    8.
    发明授权
    Method and apparatus for sensing an audio signal that is sensitive to the audio signal and insensitive to background noise 失效
    用于感测对音频信号敏感且对背景噪声不敏感的音频信号的方法和装置

    公开(公告)号：US06424441B1

    公开(公告)日：2002-07-23

    申请号：US09491726

    申请日：2000-01-27

    申请人： Stanley A. White ,  Kenneth S. Walley ,  James W. Johnston ,  P. Michael Henderson ,  Kelly H. Hale ,  Warner B. Andrews, Jr. ,  Jonathan I. Siann

    发明人： Stanley A. White ,  Kenneth S. Walley ,  James W. Johnston ,  P. Michael Henderson ,  Kelly H. Hale ,  Warner B. Andrews, Jr. ,  Jonathan I. Siann

    IPC分类号： H04B1002

    CPC分类号： H04R3/005 ,  H04B1/126 ,  H04R23/008 ,  H04R2410/05

    摘要： A method and apparatus for sensing audio frequency-pressure modulation of the moisture content of the atmosphere caused by a moisture-laden audio source, such as a live human voice, is disclosed. A first light emitter is provided to generate a first light beam. An audio source that emits moisture, and the environment, modulate the first light beam to generate a first modulated light beam. A first detector is provided to detect and demodulate the first modulated light beam to recover an uncompensated audio signal. A second light emitter is provided to generate a second light beam. The second light beam is modulated by the environment and not by the audio source to produce a second modulated light beam. A second detector is provided to detect and demodulate the second modulated light beam to recover the signal component caused by environmental conditions. A differential amplifier is provided to generate a compensated output signal representing the difference between the uncompensated audio signal and the signal component caused by environmental conditions. The output signal can be transmitted for amplification, distribution, and/or recording.

    摘要翻译： 公开了一种用于感测由诸如现场人声的含水量音频源引起的大气湿度含量的音频压力调制的方法和装置。 提供第一光发射器以产生第一光束。 发出水分和环境的音频源调制第一光束以产生第一调制光束。 提供第一检测器以检测和解调第一调制光束以恢复未补偿的音频信号。 提供第二发光器以产生第二光束。 第二光束被环境而不是由音频源调制以产生第二调制光束。 提供第二检测器来检测和解调第二调制光束以恢复由环境条件引起的信号分量。 提供差分放大器以产生表示由未被补偿的音频信号和由环境条件引起的信号分量之间的差的补偿输出信号。 可以传输输出信号用于放大，分配和/或记录。

    System and method for a monolithic directional microphone array
    9.
    发明授权
    System and method for a monolithic directional microphone array 失效
    单片定向麦克风阵列的系统和方法

    公开(公告)号：US06192134B1

    公开(公告)日：2001-02-20

    申请号：US08974874

    申请日：1997-11-20

    申请人： Stanley A. White ,  Kenneth S. Walley ,  James W. Johnston ,  P. Michael Henderson ,  Kelly H. Hale ,  Warner B. Andrews, Jr. ,  Jonathan I. Siann

    发明人： Stanley A. White ,  Kenneth S. Walley ,  James W. Johnston ,  P. Michael Henderson ,  Kelly H. Hale ,  Warner B. Andrews, Jr. ,  Jonathan I. Siann

    IPC分类号： H04R300

    CPC分类号： H04R3/005 ,  H04R2201/401 ,  H04R2201/403

    摘要： A system and method for a directional microphone system is disclosed. The directional microphone system can adaptively track and detect sources of sound information, and can reduce background noise. A first monolithic detection unit for detecting sound information and performing local signal processing on the detected sound information is provided. In the detection unit, an integrated transducer is provided for receiving acoustic waves and for generating sound information representative of the waves. A processor is coupled to the transducer for receiving the sound information and for performing local digital signal processing on the sound information to generate locally processed sound information. A base unit is coupled to the first monolithic detection unit and includes a global processor which receives the locally processed sound information and performs global digital signal processing on the locally processed sound information to generate globally processed sound information.

    摘要翻译： 公开了一种定向麦克风系统的系统和方法。 定向麦克风系统可以自适应跟踪和检测声音信息源，并可以减少背景噪声。 提供了用于检测声音信息并对检测到的声音信息执行本地信号处理的第一单片检测单元。 在检测单元中，设置有用于接收声波并且用于产生表示波的声音信息的集成换能器。 处理器耦合到换能器，用于接收声音信息并用于对声音信息执行本地数字信号处理以产生本地处理的声音信息。 基本单元耦合到第一单片检测单元，并且包括全局处理器，其接收本地处理的声音信息并对本地处理的声音信息执行全局数字信号处理以产生全局处理的声音信息。

    Use of converging beams for transmitting electromagnetic energy to power devices for die testing
    10.
    发明授权
    Use of converging beams for transmitting electromagnetic energy to power devices for die testing 失效
    使用会聚光束将电磁能传输到用于模具测试的功率器件

    公开(公告)号：US06184696B2

    公开(公告)日：2001-02-06

    申请号：US09046010

    申请日：1998-03-23

    申请人： Stanley A. White ,  Kenneth S. Walley ,  James W. Johnston ,  P. Michael Henderson ,  Kelly H. Hale ,  Warner B. Andrews, Jr. ,  Jonathan I. Siann

    发明人： Stanley A. White ,  Kenneth S. Walley ,  James W. Johnston ,  P. Michael Henderson ,  Kelly H. Hale ,  Warner B. Andrews, Jr. ,  Jonathan I. Siann

    IPC分类号： G01R31302

    CPC分类号： G01R31/303 ,  G01R31/3025 ,  G01R31/307 ,  G01R31/311 ,  G01R31/315

    摘要： The described method and apparatus wirelessly test individual integrated circuit die on a wafer containing multiple die. The method incorporates activating a selected die on the wafer by wirelessly impacting the die with at least two beams of electromagnetic radiation so that the die receives radiation energy having at least a first energy level, thereby activating the die by causing a current to flow in the die. Each beam of electromagnetic energy individually has less than the first energy level required to activate the die. The beams of electromagnetic energy are directed so that they at least partially overlap on the selected die. In the region of overlap, the two beams together impact the die with an energy level at least equal to the first energy level required to activate the die. The method may additionally include detecting electromagnetic radiation emitted by the die in response to the electromagnetic energy received from the beams of electromagnetic energy. The apparatus includes an integrated circuit wafer and test apparatus. The integrated circuit wafer contains a plurality of individual die. Each die can be activated by directing electromagnetic energy having at least a first energy level onto that die. The test apparatus includes first and second sources of electromagnetic energy. Each source directs to a selected die on the wafer a beam of electromagnetic energy having an energy level less than the first energy level. The beams at least partially overlap on the selected die so that together they couple to the die energy of at least the first energy level.

    摘要翻译： 所描述的方法和装置在包含多个管芯的晶片上无线地测试单个集成电路管芯。 该方法包括通过用至少两束电磁辐射无线地冲击裸片来激活晶片上的选定管芯，使得管芯接收具有至少第一能级的辐射能，从而通过使电流在 死。 每束电磁能量单独地具有小于激活模具所需的第一能级。 电磁能束被引导使得它们在所选择的模具上至少部分重叠。 在重叠的区域中，两个光束一起以至少等于激活模具所需的第一能量水平的能量水平冲击模具。 该方法可以另外包括响应于从电磁能束接收的电磁能量来检测由管芯发射的电磁辐射。 该装置包括集成电路晶片和测试装置。 集成电路晶片包含多个独立的管芯。 可以通过将具有至少第一能级的电磁能引导到该管芯上来激活每个管芯。 测试装置包括第一和第二电磁源。 每个源向晶片上的选定的管芯提供具有小于第一能级的能级的电磁能束。 梁在所选择的模具上至少部分地重叠，使得它们一起耦合到至少第一能级的管芯能量。