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1. 发明授权

US5041831A Indirect D/A converter 失效
标题翻译：间接D / A转换器
公开(公告)号：US5041831A
公开(公告)日：1991-08-20
申请号：US186311
申请日：1988-04-26
申请人： Thomas K. Bohley , Grosvenor H. Garnett , Christopher Koerner
发明人： Thomas K. Bohley , Grosvenor H. Garnett , Christopher Koerner
IPC分类号： H03M1/66 , H03M1/00
CPC分类号： H03M1/662 , H03M1/1014 , H03M1/822
摘要： A plural channel indirect digital to analog converter. Words containing address bits and data bits are received on an input and entered into a specific one of the converter channels under control of the address bits of the word. The data bits are applied to a binary rate multiplier of the channel which generates a pulse modulated output signal representing the binary value of the received data bits. The pulse modulated output signal is applied to an associated filter which converts the pulse modulated signal to an analog output signal whose amplitude represents the binary value of the received data bits. Gating circuitry ensures that each output pulse is of a precisely controlled pulse width. One of the converter channels is used to calibrate the output level of the filters. The number of data bits applied to the different channels may need not be the same and may vary in number from a minimum of 1 to a maximum of m.

2. 发明授权

US4694244A Apparatus for random repetitive sampling 失效
标题翻译：随机重复抽样装置
公开(公告)号：US4694244A
公开(公告)日：1987-09-15
申请号：US832107
申请日：1986-02-21
申请人： Laura Whiteside , Thomas K. Bohley
发明人： Laura Whiteside , Thomas K. Bohley
IPC分类号： G01R13/20 , G01R13/34 , H03M1/06
CPC分类号： G01R13/345
摘要： Methods and apparatus for random repetitive sampling in digital oscilloscopes is disclosed using a psuedo-random noise generator to vary randomly the beginning of a search for a trigger event to enable the acquiring of data which has no gaps.
摘要翻译：公开了数字示波器中随机重复采样的方法和装置，其使用伪随机噪声发生器随机地改变对触发事件的搜索的开始，以使能获取没有间隙的数据。

3. 发明授权

US3649852A Trigger circuit utilizing a pair of logic gates coupled in parallel current paths 失效
标题翻译：触发电路使用并联电流条件下的逻辑门对
公开(公告)号：US3649852A
公开(公告)日：1972-03-14
申请号：US3649852D
申请日：1971-03-10
申请人： THOMAS K BOHLEY
发明人： BOHLEY THOMAS K
IPC分类号： G01R13/32 , H03K3/037 , H03K3/2897 , H03K17/00
CPC分类号： H03K3/037 , G01R13/32 , H03K3/2897
摘要： A triggering circuit for producing an oscilloscope sweep trigger signal employing a pair of parallel current paths, one path including one input of a first logic gate and a current control device coupled thereto and the second path including one input of a second logic gate and a second current control device coupled thereto. Feedback circuits couple the output of each gate to said input of each gate for regenerative feedback. A reset control signal is coupled to a second input of each gate. The output of said one gate is coupled to a third input of said second gate. A sync signal controls each of said current control devices to control the current through each path for operating said gates in sequence, said first gate operating at a preselected level in one half cycle of said sync signal and said second gate operating at a preselected level in the next half cycle of said sync signal to produce said triggering signal.
摘要翻译：一种用于产生采用一对并行电流路径的示波器扫描触发信号的触发电路，一个路径包括第一逻辑门的一个输入和耦合到其的电流控制装置，第二路径包括第二逻辑门和第二逻辑门的一个输入电流控制装置耦合到其上。反馈电路将每个门的输出耦合到每个门的所述输入以用于再生反馈。复位控制信号耦合到每个门的第二输入端。所述一个栅极的输出耦合到所述第二栅极的第三输入端。同步信号控制每个所述电流控制装置以控制通过每个路径的电流以顺序地操作所述门，所述第一门在所述同步信号的一个半周期中以预选电平工作，并且所述第二门在预选电平所述同步信号的下一个半周期产生所述触发信号。

4. 发明授权

US4350953A Time interval measurement apparatus 失效
标题翻译：时间间隔测量装置
公开(公告)号：US4350953A
公开(公告)日：1982-09-21
申请号：US888094
申请日：1978-03-20
申请人： Allan I. Best , Thomas K. Bohley , Ronald C. Westlund
发明人： Allan I. Best , Thomas K. Bohley , Ronald C. Westlund
IPC分类号： G04F10/04 , G04F8/00
CPC分类号： G04F10/04
摘要： A triggerable oscilloscope having a digital clock selectably connected to two digital counters accurately measures a time interval between two recurring events. The first digital counter is connected to the digital clock to count clock pulses during a timer interval between the initiation of a horizontal sweep signal and the occurrence of the first recurring event. A second digital counter is connected to the digital clock to count clock pulses during a time interval between the initiation of a sequent horizontal sweep signal and the occurrence of the second recurring event. A subtractor circuit coupled to the first and second digital counters subtracts the count of the first digital counter from the count of the second digital counter and determines the time interval between the first and second recurring events.Time averaging techniques increase the accuracy of the time interval measurements for high speed recurring events by accumulating counts during a plurality of horizontal sweep signals. Predivide techniques are used for low speed recurring events to limit the number of counts accumulated during a horizontal sweep signal to a number compatible with the capacity of the digital counters.
摘要翻译：具有可选择地连接到两个数字计数器的数字时钟的可触发示波器精确地测量两个重复事件之间的时间间隔。第一数字计数器连接到数字时钟以在水平扫描信号的启动和第一次重复事件的发生之间的定时器间隔期间对时钟脉冲进行计数。第二数字计数器连接到数字时钟以在后续水平扫描信号的启动和第二次重复事件的发生之间的时间间隔期间对时钟脉冲进行计数。耦合到第一和第二数字计数器的减法器电路从第二数字计数器的计数中减去第一数字计数器的计数，并确定第一和第二循环事件之间的时间间隔。时间平均技术通过在多个水平扫描信号期间累加计数来增加高速度重复事件的时间间隔测量的精度。预测技术用于低速循环事件，以将水平扫描信号期间累积的计数数量限制为与数字计数器的容量兼容的数字。

5. 发明授权

US07242178B2 Digital cable toning apparatus and method 有权
标题翻译：数字电缆调色装置及方法
公开(公告)号：US07242178B2
公开(公告)日：2007-07-10
申请号：US10699617
申请日：2003-10-30
申请人： James A Kahkoska , Thomas K Bohley
发明人： James A Kahkoska , Thomas K Bohley
IPC分类号： G01R31/02 , H04M3/26
CPC分类号： G01R31/021 , G01R31/023
摘要： A digital toner/locator employs tone packets using a 455 Khz. carrier. Plural packet quanta provide multiple test modes which are advantageously selected from a probe without requiring returning to the tone generator to change mode. A locate and isolate mode are provided, as well as multiple song selection, for choice of alternative songs played by the detector when the tone packets are detected.
摘要翻译：数字调色剂/定位器使用455赫兹的音色包。载体多个分组量子提供多个测试模式，其有利地从探测器中选择，而不需要返回到音调发生器以改变模式。提供定位和隔离模式以及多个歌曲选择，用于在检测到音调分组时选择由检测器播放的替代歌曲。

6. 发明授权

US06798183B2 Method of and apparatus for simultaneously providing tone and intermittent link onto a cable to assist identifying the cable 有权
标题翻译：同时向电缆提供音调和间歇性链接以辅助识别电缆的方法和装置
公开(公告)号：US06798183B2
公开(公告)日：2004-09-28
申请号：US10164918
申请日：2002-06-04
申请人： Thomas K. Bohley , Thomas Doumas , Mark Keisling
发明人： Thomas K. Bohley , Thomas Doumas , Mark Keisling
IPC分类号： G01R1900
CPC分类号： H04M3/26 , G01R31/021 , G01R31/023 , H04L43/50 , H04M3/085
摘要： A test device for assisting in locating a cable efficiently provides both tone and link pulses simultaneously to a cable under test. The link pulses are alternated between transmit and receive pairs on the cable.
摘要翻译：用于辅助定位电缆的测试设备有效地将音调和链路脉冲同时提供给被测电缆。链路脉冲在电缆上的发送和接收对之间交替。

7. 发明授权

US06573733B2 Capacitance measuring technique for estimating cable length 失效
公开(公告)号：US06573733B2
公开(公告)日：2003-06-03
申请号：US09779084
申请日：2001-02-08
申请人： Thomas K. Bohley
发明人： Thomas K. Bohley
IPC分类号： C01R2726
CPC分类号： G01B7/02 , G01B7/026 , G01R31/11
摘要： A hand held test instrument measures cable lengths by applying a square wave signal to a conductor of a pair and detects the induced current in the other conductor of the pair. A synchronous detector measures the induced current, which is representative of the capacitance of the cable, which is representative of the length of the cable.

8. 发明授权

US07598721B2 Locating a cable using synchronization portion and data portion of a tone packet of a system 有权
标题翻译：使用系统的音频分组的同步部分和数据部分来定位电缆
公开(公告)号：US07598721B2
公开(公告)日：2009-10-06
申请号：US11775163
申请日：2007-07-09
申请人： James A. Kahkoska , Thomas K Bohley
发明人： James A. Kahkoska , Thomas K Bohley
IPC分类号： H03K19/0175
CPC分类号： G01R31/021 , G01R31/023
摘要： A digital toner/locator employs tone packets using a 455 Khz carrier. Plural packet quanta provide multiple test modes which are advantageously selected from a probe without requiring returning to the tone generator to change mode.
摘要翻译：数字调色剂/定位器使用455 Khz载体的音频分组。多个分组量子提供多个测试模式，其有利地从探测器中选择，而不需要返回到音调发生器以改变模式。

9. 发明授权

US06856138B2 Time-domain reflectometer for testing terminated network cable 有权
标题翻译：用于测试终端网络电缆的时域反射计
公开(公告)号：US06856138B2
公开(公告)日：2005-02-15
申请号：US10202368
申请日：2002-07-23
申请人： Thomas K. Bohley
发明人： Thomas K. Bohley
IPC分类号： H04L25/02 , G01R31/11
CPC分类号： G01R31/11
摘要： A time domain reflectometer having a first impedance when in a first test mode and a second impedance when in a second test mode. The first impedance is substantially the same as the nominal characteristic impedance of a network link cable not connected to a network and the second impedance is substantially different from the impedance of a network link cable that is terminated into a network. A method for measuring the length of a terminated network cable includes the steps of determining that the network cable is terminated at a network, selecting a test mode suitable for testing the terminated network cable, and performing time domain reflectometry testing on the terminated network cable.
摘要翻译：时域反射计，当处于第一测试模式时具有第一阻抗，当处于第二测试模式时具有第二阻抗。第一阻抗与未连接到网络的网络链路电缆的标称特性阻抗基本相同，并且第二阻抗与终止于网络的网络链路电缆的阻抗基本上不同。一种用于测量终端网络电缆的长度的方法包括以下步骤：确定网络电缆终止于网络，选择适合于测试终止的网络电缆的测试模式，以及对终止的网络电缆执行时域反射测试。

10. 发明授权

US06377514B1 Acoustic lens-based swimmer's sonar 失效
标题翻译：基于声学镜头的游泳者声纳
公开(公告)号：US06377514B1
公开(公告)日：2002-04-23
申请号：US09543492
申请日：2000-04-06
申请人： Thomas E. Linnenbrink , Charles S. Desilets , Marshall K. Quick , Thomas K. Bohley , Timothy G. O'Shaughnessy , Lyle E. Whelchel , R. Carver Anderson
发明人： Thomas E. Linnenbrink , Charles S. Desilets , Marshall K. Quick , Thomas K. Bohley , Timothy G. O'Shaughnessy , Lyle E. Whelchel , R. Carver Anderson
IPC分类号： G03B4206
CPC分类号： G10K11/30 , G01H3/125 , G01S7/521 , G01S7/6218 , G01S15/89 , G01S15/8993 , Y10S367/91
摘要： An acoustic/video processing stack of a plurality of substantially identical acoustic/video processing stacks is provided for attachment to a processing stack backplane and which together generate a VGA signal for display of a three-dimensional acoustic image. The acoustic/video processing stack includes a two-dimensional array of transducer elements, a companion chip block coupled to and adapted to transceive acoustic signals under a time-division multiplexed format through the transducer elements and to provide a portion of the VGA signal together generated by the plurality of acoustic/video processing stacks and a backing block disposed between the two-dimensional array and companion chip block and adapted to acoustically isolate the two-dimensional transducer array from the companion chip block, said companion chip block and backing block being of a size and diameter substantially the same as the two-dimensional transducer array.
摘要翻译：提供了多个基本上相同的声/视频处理堆叠的声/视频处理堆叠，用于附接到处理堆叠背板，并且一起生成用于显示三维声像的VGA信号。声/视频处理堆叠包括换能器元件的二维阵列，耦合到并适于通过换能器元件以时分多路复用格式收发声信号的伴随芯片块，并将VGA信号的一部分一起产生通过所述多个声/视频处理堆栈和设置在所述二维阵列和伴随芯片块之间的背衬块，并且适于将所述二维换能器阵列与所述伴随芯片块声学隔离，所述伴随芯片块和背衬块为尺寸和直径基本上与二维换能器阵列相同。

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