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11. 发明授权

US06479978B1 High-resolution measurement of phase shifts in high frequency phase modulators 有权
标题翻译：高频相位调制器相移的高分辨率测量
公开(公告)号：US06479978B1
公开(公告)日：2002-11-12
申请号：US09931001
申请日：2001-08-17
申请人： Mehran Aliahmad , Russell W. Brown
发明人： Mehran Aliahmad , Russell W. Brown
IPC分类号： G01R2500
CPC分类号： G01R15/202
摘要： A phase difference to duty-cycle circuit converts a phase shifted signal and a reference signal into a single signal having a duty cycle that is a function of the phase difference between the two signals. The single signal may be further converted to a single direct current (DC) value before being transmitted to external measurement circuitry. The external measurement circuitry, by simply measuring the magnitude of the DC signal, can determine the phase difference between the phase shifted signal and the reference signal. In an alternate embodiment, the phase shift in the target bit of a bit pattern is determined based on measurements of the DC voltage value of the shifted target bit pattern, the DC voltage value of first bit pattern comprising a non-shifted bit pattern representing a zero phase shift of the target bit, and a DC voltage value of a bit pattern comprising a non-shifted bit pattern representing a 100% phase shift of the target bit.
摘要翻译：与占空比电路的相位差将相移信号和参考信号转换为具有作为两个信号之间的相位差的函数的占空比的单个信号。在发送到外部测量电路之前，单个信号可以进一步转换为单个直流（DC）值。外部测量电路通过简单地测量直流信号的大小，可以确定相移信号和参考信号之间的相位差。在替代实施例中，基于移位的目标比特模式的直流电压值的测量来确定比特模式的目标比特中的相移，第一比特模式的直流电压值包括表示一个目标位的零相移，以及包括表示目标位的100％相移的非移位位模式的位模式的DC电压值。

12. 发明授权

US06356218B1 Correction of DC offset in data bus structures at the receiver 失效
标题翻译：接收机数据总线结构中DC偏移的校正
公开(公告)号：US06356218B1
公开(公告)日：2002-03-12
申请号：US09568504
申请日：2000-05-11
申请人： Russell W. Brown , Kristopher Kshonze , Ivan Chan , Mehran Aliahmad
发明人： Russell W. Brown , Kristopher Kshonze , Ivan Chan , Mehran Aliahmad
IPC分类号： H03M110
CPC分类号： H03M1/1295 , H03M1/1019 , H03M1/12
摘要： DC offset introduced into a differential signal is compensated for by DC offset correction circuitry. The DC offset correction circuitry receives a known training pattern of alternating logic high and logic low levels (i.e., 10101010 etc.). In one embodiment, the received signal is integrated and the result compared to a predetermined reference level. The result of the comparison is used to adjust a DC offset correction value that is added to the received signal. This process is iteratively performed until successive results of the comparison indicate that the DC offset has been compensated for. In another embodiment, the duty-cycle of the received signal is calculated. The result of the duty-cycle calculation is used to iteratively adjust the DC offset correction value.
摘要翻译：引入到差分信号的DC偏移由DC偏移校正电路补偿。 DC偏移校正电路接收交替逻辑高电平和逻辑低电平（即10101010等）的已知训练模式。在一个实施例中，所接收的信号被积分，并且结果与预定的参考电平相比较。比较结果用于调整附加到接收信号的DC偏移校正值。迭代地执行该过程，直到比较的连续结果指示已经补偿了DC偏移。在另一个实施例中，计算接收信号的占空比。使用占空比计算的结果来迭代地调整DC偏移校正值。

13. 发明授权

US5917670A Method for recovering data from disk with magneto-resistive head in presence of thermal asperities 失效
标题翻译：在存在热凹凸的情况下用磁阻头从磁盘上恢复数据的方法
公开(公告)号：US5917670A
公开(公告)日：1999-06-29
申请号：US734782
申请日：1996-10-15
申请人： John A. Scaramuzzo , James D. Sawin , Bruce D. Buch , Russell W. Brown , Nick Horgan
发明人： John A. Scaramuzzo , James D. Sawin , Bruce D. Buch , Russell W. Brown , Nick Horgan
IPC分类号： C12N15/09 , A61K31/70 , A61K31/7088 , A61K47/34 , A61K47/48 , A61K48/00 , C07C237/06 , C07K5/02 , C07K7/02 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/09 , G11B19/04 , G11B20/10 , G11B20/12 , G11B20/18 , G11B20/24
CPC分类号： G11B19/04 , G11B20/1816 , G11B20/1866 , G11B20/24 , G11B5/012 , G11B5/09 , G11B20/10009 , G11B20/1258 , G11B2005/0016 , G11B2020/1476 , G11B2020/183
摘要： Momentary contact with a defect site of a data storage disk or free particle by a magnetoresistive read element of a flying head causes momentary heating and unwanted increase in element resistance (thermal asperity) which can disrupt hard disk drive data reading operations. Since the disk carries a predetermined data format, the disk drive controller correlates location of a thermal asperity to the format and thereupon selects from several available thermal asperity recovery methods a method most likely to minimize thermal asperity effect upon disk drive operation during rereading of data at the thermal asperity location.
摘要翻译：通过飞头的磁阻读取元件与数据存储盘或自由粒子的缺陷部位的瞬时接触会导致瞬时加热，并且不必要地增加可能会破坏硬盘驱动器数据读取操作的元件电阻（热粗糙度）。由于磁盘具有预定的数据格式，所以磁盘驱动器控制器将热不平坦度的位置与格式相关联，并且随后从几个可用的热凹凸恢复方法中选择一种最有可能最小化磁盘驱动器操作时的热粗糙度影响的方法，热不平衡位置。

14. 发明授权

US09979505B2 Delivery of GPON technology 有权
公开(公告)号：US09979505B2
公开(公告)日：2018-05-22
申请号：US13608156
申请日：2012-09-10
申请人： Richard Schroder , Russell W. Brown , Thomas C. Ruvarac , John Silovich , Andrew G. Low
发明人： Richard Schroder , Russell W. Brown , Thomas C. Ruvarac , John Silovich , Andrew G. Low
IPC分类号： G02B6/36 , H04J14/00
CPC分类号： H04J14/00
摘要： A wall-mountable outlet comprising an enclosure and a faceplate mechanically coupled to the enclosure. An optical network terminal (ONT) is provided in the enclosure. In one example embodiment, the ONT comprises an optical-electrical (O-E) data module, and the O-E data module comprises an O-E converter. The O-E data module can further comprise a switch arranged to selectively couple at least one signal with the O-E converter. The O-E data module further can comprise a Passive Optical Network (PON) controller interposed between the O-E converter and the switch.

15. 发明授权

US07003028B1 Mixed signal adaptive boost equalization apparatus and method 失效
标题翻译：混合信号自适应升压均衡装置及方法
公开(公告)号：US07003028B1
公开(公告)日：2006-02-21
申请号：US09650964
申请日：2000-08-29
申请人： Andrew Bishop , Ivan Chan , Russell W. Brown
发明人： Andrew Bishop , Ivan Chan , Russell W. Brown
IPC分类号： H03H7/30
CPC分类号： H03H21/0001
摘要： The high frequency components of a SCSI signal are adaptively equalized using an adaptive filter having an adjustable gain. A comparator is used to compare an input signal with a predetermined threshold level. Based on the result of the comparison, the adjustable gain of the adaptive filter is modified.
摘要翻译：使用具有可调节增益的自适应滤波器自适应地均衡SCSI信号的高频分量。比较器用于将输入信号与预定阈值电平进行比较。基于比较的结果，修改了自适应滤波器的可调增益。

16. 发明授权

US06874097B1 Timing skew compensation technique for parallel data channels 失效
标题翻译：并行数据通道的定时偏移补偿技术
公开(公告)号：US06874097B1
公开(公告)日：2005-03-29
申请号：US09870704
申请日：2001-06-01
申请人： Mehran Aliahmad , Russell W Brown , Bruce Leshay
发明人： Mehran Aliahmad , Russell W Brown , Bruce Leshay
IPC分类号： G06F1/10 , G06F1/12 , G06F5/06
CPC分类号： G06F5/06 , G06F1/10 , G06F1/12 , G06F2205/104 , H03K5/133 , H03K5/135 , H03K2005/00058 , H03K2005/00104
摘要： A method and apparatus for correcting the timing skew of data signals in a parallel data transmission system, such as Small Computer System Interface (SCSI) data bus, relative to a receive clock in the data bus. The system separately corrects the receive clock duty cycle, and also features independent de-skewing of the rising and falling edges of a data waveform to improve timing accuracy of transmitted signals. The method and apparatus can be used without substantial changes to existing transmission system protocols, and can be implemented on an all-digital integrated circuit.
摘要翻译：一种用于在并行数据传输系统（诸如小型计算机系统接口（SCSI）数据总线）中相对于数据总线中的接收时钟校正数据信号的定时偏移的方法和装置。系统单独校正接收时钟占空比，并且还具有数据波形的上升沿和下降沿的独立去偏移，以提高发送信号的定时精度。该方法和装置可以用于现有传输系统协议的实质性改变，并且可以在全数字集成电路上实现。

17. 发明授权

US4647866A Audio amplifier output stage 失效
标题翻译：音频放大器输出级
公开(公告)号：US4647866A
公开(公告)日：1987-03-03
申请号：US692198
申请日：1985-01-17
申请人： Russell W. Brown
发明人： Russell W. Brown
IPC分类号： H03F3/26
CPC分类号： H03F3/26
摘要： Apparatus and method for driving a non-centertapped load such as a loudspeaker from a low voltage supply such as a single dry cell, with increased efficiency. A push-pull signal having similar polarity voltage excursions is applied to opposite terminals of the load. Alternate individual terminals of the load which are opposite to the terminals to which the non-idle phases of the push-pull signal are alternately applied are connected to a common terminal via a pair of transistors. The pair of transistors are driven by an amplified representation of the push-pull input signal. Since pulse signals are not used to drive the pair of transistors, capacitors need not be used to eliminate switching transients which would otherwise appear, and increased efficiency results.
摘要翻译：用于从诸如单个干电池的低电压电源驱动诸如扬声器的非中心负载的装置和方法，其效率提高。具有相似极性电压偏移的推挽信号被施加到负载的相对端子。与推挽信号的非空闲相位交替施加的端子相反的负载的备用单独端子经由一对晶体管连接到公共端子。该对晶体管由推挽输入信号的放大表示驱动。由于脉冲信号不用于驱动晶体管对，因此不需要使用电容器来消除否则将出现的开关瞬变，并提高效率。

18. 发明授权

US4318245A Vocalizing apparatus 失效
标题翻译：发声装置
公开(公告)号：US4318245A
公开(公告)日：1982-03-09
申请号：US114219
申请日：1980-01-22
申请人： Roger H. Stowell , Michael O. Hirtle , Russell W. Brown , Arthur D. Moore
发明人： Roger H. Stowell , Michael O. Hirtle , Russell W. Brown , Arthur D. Moore
IPC分类号： G10L13/00 , A63H3/28 , A63H3/33 , G09B5/04
CPC分类号： G09B5/04 , A63H3/28
摘要： Vocalizing apparatus for use in a doll which has a synthesizer for producing speech sounds. The synthesizer is controlled by a digital controller having a memory which stores information representing a vocabulary of infant-like sounds. A motion detector, which may be in the form of a gravity-actuated switch, activates the controller so as to cause the synthesizer to produce a pattern of sound simulating happy infant sounds when the doll is moved and when it is cuddled, and fussing or crying sounds when it is thereafter not moved for a time. The electronic apparatus is shut down if the doll is left unmoved for a time after it no longer emits the fussing sounds but is automatically activated when again it is moved. The vocalizing apparatus is provided in a self-contained package, removable for laundering.
摘要翻译：用于具有用于产生语音的合成器的玩偶中的声音设备。合成器由数字控制器控制，该数字控制器具有存储表示婴儿般声音的词汇的信息的存储器。运动检测器可以是重力驱动开关的形式，激活控制器，从而使合成器产生模拟婴儿运动时的快乐婴儿声音的模式，以及当它被拥抱时，哭泣的声音当它之后不被移动一段时间。如果娃娃在不再发出混乱的声音之后不动，电子设备就会关闭，但是当再次移动时，它会自动激活。发声装置设置在独立包装中，可洗涤。

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