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1. 发明授权

US06754337B2 Telephone having four VAD circuits 有权
标题翻译：电话有四个VAD电路
公开(公告)号：US06754337B2
公开(公告)日：2004-06-22
申请号：US10057160
申请日：2002-01-25
申请人： Steven M. Domer , Kellie Michele Vanda
发明人： Steven M. Domer , Kellie Michele Vanda
IPC分类号： H04M100
CPC分类号： H04M9/082
摘要： Voice activity is detected by comparing a signal with two thresholds and producing data representing the energy of the signal. The data, in binary form, is compared with thresholds to determine voice activity. In accordance with another aspect of the invention, the thresholds are adjusted based upon statistical information. In accordance with another aspect of the invention, the data can be weighted to provide an indication of the quasi-RMS energy of an input signal. In accordance with another aspect of the invention, voice activity detectors, individually weighted, are provided at each input and each output of a telephone for reliably controlling echo cancelling circuitry within the telephone.
摘要翻译：通过将信号与两个阈值进行比较并产生表示信号能量的数据来检测语音活动。将二进制形式的数据与阈值进行比较以确定语音活动。根据本发明的另一方面，基于统计信息调整阈值。根据本发明的另一方面，数据可被加权以提供输入信号的准RMS能量的指示。根据本发明的另一方面，在电话的每个输入和每个输出处提供单独加权的语音活动检测器，用于可靠地控制电话内的回波消除电路。

2. 发明授权

US06904146B2 Full duplex echo cancelling circuit 有权
标题翻译：全双工回声消除电路
公开(公告)号：US06904146B2
公开(公告)日：2005-06-07
申请号：US10138615
申请日：2002-05-03
申请人： Steven M. Domer , Samuel L. Thomasson
发明人： Steven M. Domer , Samuel L. Thomasson
IPC分类号： H04M9/08 , H04M9/00
CPC分类号： H04M9/082
摘要： Sub-band filtering, adaptive echo cancellation, and residual echo suppression are selectively and separately applied in hierarchical order under the control of a circuit that monitors four separate signals to determine n machine states. The number of machine states is further divided among m levels of noise in determining which, and how much of, sub-band filtering, adaptive echo cancellation, and residual echo suppression to use at any given time. A voice activity detector (VAD) is used to monitor each signal and provides statistical information in addition to whether or not a voice signal is detected. Sub-band filter, echo cancelling, and non-linear processing are not permitted to provide maximum reduction simultaneously. Even so, the invention provides at least 15 dB more echo suppression than systems without a sub-band filter bank series coupled with a non-linear processor in each channel.
摘要翻译：在监视四个独立信号以确定n个机器状态的电路的控制下，子带滤波，自适应回波消除和残余回波抑制被选择性地和分别地应用于分层次序。在确定在任何给定时间使用的子带滤波，自适应回波消除和残余回波抑制中的哪一个以及多少次，将机器状态的数量进一步划分为m个噪声水平。语音活动检测器（VAD）用于监视每个信号，并提供除了是否检测到语音信号之外的统计信息。子带滤波器，回波消除和非线性处理不允许同时提供最大的减少。即使如此，本发明提供比不具有与每个通道中的非线性处理器耦合的子带滤波器组系列的系统相比至少15dB的回波抑制。

3. 发明授权

US06847930B2 Analog voice activity detector for telephone 有权
标题翻译：模拟语音活动检测器，用于电话
公开(公告)号：US06847930B2
公开(公告)日：2005-01-25
申请号：US10057104
申请日：2002-01-25
申请人： Justin L. Allen , Steven M. Domer
发明人： Justin L. Allen , Steven M. Domer
IPC分类号： H04M9/08 , G10L11/02
CPC分类号： H04M9/082
摘要： Voice activity is detected by comparing an analog signal with two voltage thresholds and producing data representing the energy of the signal. The data, in binary form, is compared with thresholds to determine voice activity. In accordance with another aspect of the invention, the thresholds are adjusted based upon statistical information. In accordance with another aspect of the invention, the data can be weighted to provide an indication of the quasi-RMS energy of an input signal. The input signal itself is not converted into digital form yet the data derived from the input signal has high resolution.
摘要翻译：通过将模拟信号与两个电压阈值进行比较并产生表示信号能量的数据来检测语音活动。将二进制形式的数据与阈值进行比较以确定语音活动。根据本发明的另一方面，基于统计信息调整阈值。根据本发明的另一方面，数据可被加权以提供输入信号的准RMS能量的指示。输入信号本身不会转换为数字形式，而从输入信号导出的数据具有高分辨率。

4. 发明授权

US06583816B1 Imaging circuit and method of spatial compensation 失效
标题翻译：成像电路和空间补偿方法
公开(公告)号：US06583816B1
公开(公告)日：2003-06-24
申请号：US09118684
申请日：1998-07-17
申请人： Steven M. Domer , Jeffery E. Bills
发明人： Steven M. Domer , Jeffery E. Bills
IPC分类号： H04N5235
CPC分类号： H04N5/3572 , H04N5/3575
摘要： An imaging system (10) and method compensate for different amplitudes of pixel signals generated by photoactive devices in an optical sensor (32) whose responses to projected light are not uniform. The sensor is divided into regions (52) such that the response of the photoactive devices within a region are substantially equal. A processing circuit (34) compensates for different responses among different regions with a programmable gain amplifier (72) whose gain is dynamically adjusted when pixel signals generated in different regions are received.
摘要翻译：成像系统（10）和方法补偿由对光投射光的响应不均匀的光学传感器（32）中的光活性器件产生的不同幅度的像素信号。传感器被分成区域（52），使得区域内的光敏装置的响应基本相等。处理电路（34）利用可编程增益放大器（72）来补偿不同区域之间的不同响应，当可接收到在不同区域中产生的像素信号时，增益被动态调整。

5. 发明授权

US06346968B1 Color balancing circuit and method 失效
标题翻译：颜色平衡电路及方法
公开(公告)号：US06346968B1
公开(公告)日：2002-02-12
申请号：US08921965
申请日：1997-09-02
申请人： Steven M. Domer , Robert C. Cichomski
发明人： Steven M. Domer , Robert C. Cichomski
IPC分类号： H04N973
CPC分类号： H04N9/735
摘要： A circuit and method color balance pixel signals (VPIXEL) on-the-fly in an image capturing system (10). The pixel signals are amplified in a programmable gain amplifier (204) whose gain is set by the ratio of a programmable capacitor (320, 330) to a fixed capacitor (310, 311). Control data (CONTROL) sets the capacitance of the programmable capacitor by enabling switches (323-324, 333-334) that enable binary weighted capacitors (321-322, 331-332). The control data adjusts the gain of the programmable amplifier as each pixel signal is applied, so that the pixel signals of all primary colors are amplified in the same programmable gain amplifier.
摘要翻译：电路和方法在图像捕获系统（10）中即时运行色彩平衡像素信号（VPIXEL）。像素信号在可编程增益放大器（204）中被放大，其增益由可编程电容器（320,330）与固定电容器（310,311）的比率来设定。控制数据（CONTROL）通过启用二进制加权电容器（321-322,331-332）的开关（323-324,333-334）来设置可编程电容器的电容。控制数据在施加每个像素信号时调节可编程放大器的增益，使得所有原色的像素信号在相同的可编程增益放大器中被放大。

6. 发明授权

US5161161A Minimum pulsewidth test module on clocked logic integrated circuit 失效
标题翻译：时钟逻辑集成电路上的最小脉冲宽度测试模块
公开(公告)号：US5161161A
公开(公告)日：1992-11-03
申请号：US709075
申请日：1991-05-30
申请人： Behnam Malek-Khosravi , Matthew L. McCullough , Steven M. Domer
发明人： Behnam Malek-Khosravi , Matthew L. McCullough , Steven M. Domer
IPC分类号： G01R31/30
CPC分类号： G01R31/30
摘要： An integrated circuit chip which contains conventional clocked logic circuitry also contains a tester module for determining the minimum pulsewidth at which the clocked logic circuitry will operate. This tester module occupies a very small portion of the chip, yet it is able to generate several different variable width clock pulse sequences in which the pulsewidths range from being large enough for the clocked logic circuitry to properly operate to being too small for proper operation. By passing these sequences through the clocked logic circuitry, the minimum pulsewidth at which that circuitry will operate can be easily determined.
摘要翻译：包含常规时钟逻辑电路的集成电路芯片还包含用于确定时钟逻辑电路将工作的最小脉冲宽度的测试器模块。该测试器模块占据芯片的很小部分，但是它能够产生几个不同的可变宽度时钟脉冲序列，其中脉冲宽度范围从足够大到使时钟逻辑电路适当地操作为太小以适当的操作。通过使这些序列通过时钟逻辑电路，可以容易地确定该电路将在其操作的最小脉冲宽度。

7. 发明授权

US08264171B1 In-situ LED junction temperature monitoring using LED as temperature sensor 有权
标题翻译：采用LED作为温度传感器的现场LED结温监测
公开(公告)号：US08264171B1
公开(公告)日：2012-09-11
申请号：US12775877
申请日：2010-05-07
申请人： Steven M. Domer
发明人： Steven M. Domer
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H05B33/0854
摘要： LED junction temperature is determined in real time using the LED itself as the temperature sensor for directly measuring the LED junction temperature. In addition, temperature measurements from a silicon diode placed in proximity to the LED are also used to complement the temperature measurements from the LED itself. Arbitration is performed among temperature measurements from the LED and temperature measurements from the silicon diode to determine a temperature of the LED junction. The determined LED junction temperature may be used to make adjustments to the LED drive current. Temperature measurements from the LED are made in real time during actual operation by applying snooping currents to the LED during off-times of the PWM cycles of the LED, without interrupting normal operation of the LED.
摘要翻译： LED结温实际使用LED本身作为直接测量LED结温度的温度传感器。此外，放置在LED附近的硅二极管的温度测量也用于补充LED本身的温度测量。在来自LED的温度测量和来自硅二极管的温度测量之间进行仲裁以确定LED结的温度。确定的LED结温可用于调整LED驱动电流。 LED的温度测量在实际操作过程中通过在LED的PWM周期关闭时间内向LED施加探测电流而不中断LED的正常工作，实时进行。

8. 发明授权

US07295976B2 Voice activity detector for telephone 有权
标题翻译：语音活动检测器用于电话
公开(公告)号：US07295976B2
公开(公告)日：2007-11-13
申请号：US10056826
申请日：2002-01-25
申请人： Steven M. Domer , Justin L. Allen , Franklyn H. Story , Kellie Michele Vanda
发明人： Steven M. Domer , Justin L. Allen , Franklyn H. Story , Kellie Michele Vanda
IPC分类号： G10L15/00
CPC分类号： H04R3/00
摘要： Voice activity is detected by comparing a signal with two thresholds and producing data representing the energy of the signal. The data, in binary form, is compared with thresholds to determine voice activity. In accordance with another aspect of the invention, the thresholds are adjusted based upon statistical information. In accordance with another aspect of the invention, the data can be weighted to provide an indication of the quasi-RMS energy of an input signal.
摘要翻译：通过将信号与两个阈值进行比较并产生表示信号能量的数据来检测语音活动。将二进制形式的数据与阈值进行比较以确定语音活动。根据本发明的另一方面，基于统计信息调整阈值。根据本发明的另一方面，数据可被加权以提供输入信号的准RMS能量的指示。

9. 发明授权

US5291075A Fault detection circuit 失效
标题翻译：故障检测电路
公开(公告)号：US5291075A
公开(公告)日：1994-03-01
申请号：US590997
申请日：1990-10-01
申请人： Roger L. Hollstein , Steven M. Domer , Frederic B. Shapiro
发明人： Roger L. Hollstein , Steven M. Domer , Frederic B. Shapiro
IPC分类号： H03K19/00 , H03K19/007 , H03K19/086 , H03K19/02 , H03K5/153
CPC分类号： H03K19/007 , H03K19/086
摘要： A circuit for detecting when a fault condition has occurred includes an input stage responsive to a logic signal supplied to an input of the circuit for providing an output logic signal at an output thereof. An output stage, including a pulldown circuit, responsive to the output logic signal of the input stage, for providing an output logic signal at an output of the circuit. A fault detection circuit coupled to the output of the input stage and to the output stage for forcing the output of the circuit to a predetermined logic state when the pulldown circuit of the output stage is defective.
摘要翻译：用于检测故障状况何时发生的电路包括响应于提供给电路的输入的逻辑信号的输入级，用于在其输出处提供输出逻辑信号。输出级，包括响应于输入级的输出逻辑信号的下拉电路，用于在电路的输出处提供输出逻辑信号。当输出级的下拉电路有缺陷时，故障检测电路耦合到输入级的输出端和输出级，用于将电路的输出强制为预定的逻辑状态。

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