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11. 发明授权

US07253671B2 Apparatus and method for compensating for clock drift in downhole drilling components 有权
标题翻译：用于补偿井下钻井部件中的时钟漂移的装置和方法
公开(公告)号：US07253671B2
公开(公告)日：2007-08-07
申请号：US10878147
申请日：2004-06-28
申请人： David R. Hall , David S. Pixton , Monte L. Johnson , David B. Bartholomew , H. Tracy Hall, Jr.
发明人： David R. Hall , David S. Pixton , Monte L. Johnson , David B. Bartholomew , H. Tracy Hall, Jr.
IPC分类号： H03K5/01
CPC分类号： H03K23/52 , G01V11/002 , H04J3/0661
摘要： A precise downhole clock that compensates for drift includes a prescaler configured to receive electrical pulses from an oscillator. The prescaler is configured to output a series of clock pulses. The prescaler outputs each clock pulse after counting a preloaded number of electrical pulses from the oscillator. The prescaler is operably connected to a compensator module for adjusting the number loaded into the prescaler. By adjusting the number that is loaded into the prescaler, the timing may be advanced or retarded to more accurately synchronize the clock pulses with a reference time source. The compensator module is controlled by a counter-based trigger module configured to trigger the compensator module to load a value into the prescaler. Finally, a time-base logic module is configured to calculate the drift of the downhole clock by comparing the time of the downhole clock with a reference time source.
摘要翻译：补偿漂移的精确井下时钟包括配置为从振荡器接收电脉冲的预分频器。预分频器配置为输出一系列时钟脉冲。在从振荡器计数预加载数量的电脉冲之后，预分频器输出每个时钟脉冲。预分频器可操作地连接到补偿器模块，用于调节加载到预分频器中的数量。通过调整加载到预分频器中的数字，定时可以提前或延迟，以更准确地将时钟脉冲与参考时间源同步。补偿器模块由基于计数器的触发模块控制，配置为触发补偿器模块将值加载到预分频器中。最后，时基逻辑模块被配置为通过将井下时钟与参考时间源进行比较来计算井下时钟的漂移。

12. 发明授权

US5852785A Secure access telephone extension system and method in a cordless telephone system 失效
标题翻译：无线电话系统中的安全接入电话分机系统和方法
公开(公告)号：US5852785A
公开(公告)日：1998-12-22
申请号：US639508
申请日：1996-04-29
申请人： David B. Bartholomew , A. Ray Ivie , Alma K. Schurig
发明人： David B. Bartholomew , A. Ray Ivie , Alma K. Schurig
IPC分类号： H04K1/00 , H04B3/54 , H04M1/68 , H04M1/72 , H04M9/00 , H04M9/02 , H04Q7/20
CPC分类号： H04B3/542 , H04B3/54 , H04M1/72 , H04M9/027 , H04B2203/5408 , H04B2203/5437 , H04B2203/5441 , H04M2203/609
摘要： A method and system is provided for conducting secure power line carrier communications in full duplex over the power lines of a building. Power line carrier current telephone extension systems utilize 1) a single BASE unit per central office line (for interfacing line carrier signals with the central office line) and 2) one or more EXTENSION units, one for each extension phone set (for interfacing said line carrier signals with said extension phone sets). The method employs system control logic for providing A) multiple extension arbitration logic, B) privacy from eavesdropping and C) security from third party central office line capture by means of a digital messaging system in each base and extension unit utilizing a unique and matching security key (preamble) with each message instructing the system to change operating states, such as, A) during a conversation an extension unit may be put on hold so that a second matching extension can pick up the line, B) a base unit rings matching extension units to signal an incoming call or C) an outgoing call is initiated by a user taking a matching extension phone off hook to access the central office line. Matching of the random security codes may be initiated by the user. By this means unauthorized access to the central office line (especially for long distance calls) and eavesdropping by other users in the same building with similar line carrier telephone extension products is prohibited.
摘要翻译：提供了一种方法和系统，用于在建筑物的电力线上进行全双工的安全电力线载波通信。电力线载波当前的电话延伸系统使用1）每个中央局线路（用于将线路载波信号与中心局线路连接）的单个BASE单元和2）一个或多个EXTENSION单元，每个分机电话机一个（用于连接所述线路载波信号与所述分机电话机）。该方法采用系统控制逻辑，用于提供A）多个扩展仲裁逻辑，B）隐私来自窃听，以及C）通过每个基站和扩展单元中的数字消息传送系统捕获第三方中心局线路的安全性，利用独特的和匹配的安全性密钥（前导码），其中每个消息指示系统改变操作状态，例如A）在会话期间，扩展单元可以被保留，使得第二匹配扩展可以接收线路，B）基本单元振铃匹配扩展单元用于发送来话呼叫或C）呼出呼叫由用户使用匹配的分机电话摘机启动以访问中心局线路。随机安全码的匹配可以由用户发起。通过这种方式，禁止未经授权的方式访问中央办公室线路（特别是长途电话），并与同类建筑物中的其他用户窃听相似的线路电话延伸产品。

13. 发明授权

US07288857B2 Self-latching power supply apparatus 有权
标题翻译：自锁电源装置
公开(公告)号：US07288857B2
公开(公告)日：2007-10-30
申请号：US10907724
申请日：2005-04-13
申请人： David B. Bartholomew , Greg Perkins
发明人： David B. Bartholomew , Greg Perkins
IPC分类号： H01H3/26
CPC分类号： H02J9/061 , H02J2009/068 , Y10T307/625 , Y10T307/944
摘要： A self-latching power supply apparatus is disclosed. The apparatus comprises an activation transistor in electrical communication with an input voltage source and a battery-switching transistor. Voltage detection circuitry may be intermediate the input voltage source and the activation transistor. An input port may be intermediate and operably connected to the input voltage source and the activation transistor. The activation transistor is in electrical communication with a battery-switching transistor. The battery-switching transistor is connected to a battery and a power supply node for an electric device. The activation transistor may be configured to activate the battery-switching transistor, enabling voltage from the battery to be available at the power supply node for the electric device. A deactivation transistor is in communication with the battery-switching transistor, and is configured to disrupt power flow from the battery. The transistors may be bipolar junction transistors or metal-oxide semiconductor transistors. The deactivation transistor may be controlled by circuitry from the electric device, enabling the electric device to power itself down. The apparatus further comprises an electronic latch comprising the battery-switching transistor, the power supply node, and at least one of the activation transistor and the deactivation transistor.
摘要翻译：公开了一种自锁式电源装置。该装置包括与输入电压源和电池开关晶体管电连通的激活晶体管。电压检测电路可以在输入电压源和激活晶体管之间。输入端口可以是中间的并且可操作地连接到输入电压源和激活晶体管。激活晶体管与电池开关晶体管电连通。电池开关晶体管连接到电池和用于电子设备的电源节点。激活晶体管可以被配置为激活电池开关晶体管，使得来自电池的电压在电气设备的电源节点处可用。停用晶体管与电池开关晶体管连通，并且被配置为中断来自电池的功率流。晶体管可以是双极结型晶体管或金属氧化物半导体晶体管。停用晶体管可以由电气设备的电路控制，使得电气设备能够自身向下供电。该装置还包括电子锁存器，其包括电池开关晶体管，电源节点以及激活晶体管和去激活晶体管中的至少一个。

14. 发明授权

US5911119A Secure cordless telephone extension system and method 失效
标题翻译：安全无绳电话延伸系统及方法
公开(公告)号：US5911119A
公开(公告)日：1999-06-08
申请号：US729876
申请日：1996-10-15
申请人： David B. Bartholomew , Scott R. Bullock , John M. Knab
发明人： David B. Bartholomew , Scott R. Bullock , John M. Knab
IPC分类号： H04B3/54 , H04M1/725 , H04M11/00 , H04Q7/32
CPC分类号： H04B3/54 , H04M1/725 , H04B2203/5441
摘要： A method and system for multiple access telephone communications is described. The system utilizes one or more base units connected to subscriber lines, and multiple extension units in communication with each base unit via building power lines. Secure multiple access coding is used to prevent eavesdropping and interference. Extension units may employ cordless telephone technology. Caller ID information transmitted with incoming telephone signals may be transmitted to extension units via building power lines and displayed on the extension handset or cradle.
摘要翻译：描述了用于多址电话通信的方法和系统。该系统利用连接到用户线路的一个或多个基本单元，以及通过建筑物电力线与每个基本单元通信的多个延伸单元。安全多址编码用于防止窃听和干扰。扩展单元可以采用无绳电话技术。通过传入电话信号发送的来电显示信息可以通过建筑物电力线路发送到分机单元，并显示在分机手机或通讯座上。

15. 发明授权

US5530737A Secure access telephone extension system and method 失效
标题翻译：安全接入电话延伸系统和方法
公开(公告)号：US5530737A
公开(公告)日：1996-06-25
申请号：US34086
申请日：1993-03-22
申请人： David B. Bartholomew , A. Ray Ivie , Alma K. Schurig
发明人： David B. Bartholomew , A. Ray Ivie , Alma K. Schurig
IPC分类号： H04K1/00 , H04B3/54 , H04M1/68 , H04M1/72 , H04M9/00 , H04M9/02 , H04M11/00
CPC分类号： H04B3/542 , H04B3/54 , H04M1/72 , H04M9/027 , H04B2203/5408 , H04B2203/5437 , H04B2203/5441 , H04M2203/609
摘要： A method and system is provided for conducting secure power line carrier communications in full duplex over the power lines of a building. Power line carrier current telephone extension systems utilize 1) a single BASE unit per central office line (for interfacing line carrier signals with the central office line) and 2) one or more EXTENSION units, one for each extension phone set (for interfacing said line carrier signals with said extension phone sets). The method employs system control logic for providing A) multiple extension arbitration logic, B) privacy from eavesdropping and C) security from third party central office line capture by means of a digital messaging system in each base and extension unit utilizing a unique and matching security key (preamble) with each message instructing the system to change operating states, such as, A) during a conversation an extension unit may be put on hold so that a second matching extension can pick up the line, B) a base unit rings matching extension units to signal an incoming call or C) an outgoing call is initiated by a user taking a matching extension phone off hook to access the central office line. Matching of the random security codes may be initiated by the user. By this means unauthorized access to the central office line (especially for long distance calls) and eavesdropping by other users in the same building with similar line carrier telephone extension products is prohibited.
摘要翻译：提供了一种方法和系统，用于在建筑物的电力线上进行全双工的安全电力线载波通信。电力线载波当前的电话延伸系统使用1）每个中央局线路（用于将线路载波信号与中心局线路连接）的单个BASE单元和2）一个或多个EXTENSION单元，每个分机电话机一个（用于连接所述线路载波信号与所述分机电话机）。该方法采用系统控制逻辑，用于提供A）多个扩展仲裁逻辑，B）隐私来自窃听，以及C）通过每个基站和扩展单元中的数字消息传送系统捕获第三方中心局线路的安全性，利用独特的和匹配的安全性密钥（前导码），其中每个消息指示系统改变操作状态，例如A）在会话期间，扩展单元可以被保留，使得第二匹配扩展可以接收线路，B）基本单元振铃匹配扩展单元用于发送来话呼叫或C）呼出呼叫由用户使用匹配的分机电话摘机启动以访问中心局线路。随机安全码的匹配可以由用户发起。通过这种方式，禁止未经授权的方式访问中央办公室线路（特别是长途电话），并与同类建筑物中的其他用户窃听相似的线路电话延伸产品。

16. 发明授权

US5319634A Multiple access telephone extension systems and methods 失效
标题翻译：多路接入电话延伸系统和方法
公开(公告)号：US5319634A
公开(公告)日：1994-06-07
申请号：US773009
申请日：1991-10-07
申请人： David B. Bartholomew , A. Ray Ivie , Alma K. Schurig
发明人： David B. Bartholomew , A. Ray Ivie , Alma K. Schurig
IPC分类号： H04B3/54 , H04J13/00 , H04M1/00 , H04M1/72 , H04M1/733 , H04B7/204 , H04J3/16
CPC分类号： H04J13/00 , H04B3/542 , H04M1/72 , H04M1/733 , H04B2203/5408 , H04B2203/5425 , H04B2203/5437 , H04B2203/5441 , H04B2203/5445 , H04B2203/545 , H04B2203/5483 , H04B2203/5491
摘要： A method and system for conducting multiple access simultaneous telephone communications in full duplex either over the power lines of a building or using RF transmission. It employs a combination of multiple access techniques selected from among the following: time division, code division, and frequency division. The following features result: a) security coding to prevent unauthorized access and eavesdropping, b) multiple simultaneous conversations through identical and closely coupled transmission media, c) non-interference to other communications systems and users, and d) processing gain for operating in noisy environments.
摘要翻译：一种用于在建筑物的电力线上或者使用RF传输的全双工方式进行多路同时电话通信的方法和系统。它采用从以下选择的多种接入技术的组合：时分，码分频和分频。以下特点是：a）安全编码，以防止未经授权的访问和窃听，b）通过相同和紧密耦合的传输媒体进行多个同时对话，c）对其他通信系统和用户的不干扰，以及d）处理嘈杂操作的增益环境。

17. 发明授权

US07135933B2 System for adjusting frequency of electrical output pulses derived from an oscillator 有权
标题翻译：用于调整从振荡器得到的电输出脉冲频率的系统
公开(公告)号：US07135933B2
公开(公告)日：2006-11-14
申请号：US10711648
申请日：2004-09-29
申请人： David B. Bartholomew
发明人： David B. Bartholomew
IPC分类号： H03L7/085 , H03L7/099
CPC分类号： H03K5/135 , H03L1/00
摘要： A system for setting and adjusting a frequency of electrical output pulses derived from an oscillator in a network is disclosed. The system comprises an accumulator module configured to receive pulses from an oscillator and to output an accumulated value. An adjustor module is configured to store an adjustor value used to correct local oscillator drift. A digital adder adds values from the accumulator module to values stored in the adjustor module and outputs their sums to the accumulator module, where they are stored. The digital adder also outputs an electrical pulse to a logic module. The logic module is in electrical communication with the adjustor module and the network. The logic module may change the value stored in the adjustor module to compensate for local oscillator drift or change the frequency of output pulses. The logic module may also keep time and calculate drift.
摘要翻译：公开了一种用于设置和调整从网络中的振荡器导出的电输出脉冲的频率的系统。该系统包括累加器模块，其被配置为从振荡器接收脉冲并输出累积值。调整器模块被配置为存储用于校正本地振荡器漂移的调整器值。数字加法器将累加器模块的值添加到存储在调整器模块中的值，并将它们的和输出到存储器的累加器模块。数字加法器还向逻辑模块输出电脉冲。逻辑模块与调节器模块和网络电气通信。逻辑模块可以改变存储在调节器模块中的值，以补偿本地振荡器漂移或改变输出脉冲的频率。逻辑模块还可以保持时间并计算漂移。

18. 发明授权

US06567474B1 Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (DBPSK) 失效
标题翻译：数字无线电话/调制解调器插孔能够使用差分二进制相移键控（DBPSK）通过电力线进行通信
公开(公告)号：US06567474B1
公开(公告)日：2003-05-20
申请号：US09260868
申请日：1999-03-02
申请人： Scott R. Bullock , Scott D. Smith , David B. Bartholomew
发明人： Scott R. Bullock , Scott D. Smith , David B. Bartholomew
IPC分类号： H04L2718
CPC分类号： H04B3/56 , H04B3/54 , H04B2203/5441
摘要： A system for communicating signals between a transmitter and a receiver using digital modulation techniques is provided. This invention is particularly adapted to meet the requirements of power line communication. In one preferred embodiment of this invention the modulation technique is differential binary phase shift key modulation. This system provides a low cost, simple delay and multiply process for the modulation and demodulation of data. This system lends itself to an ASIC implementation, thereby further reducing the cost of the system while improving the reliability of the system in a noisy environment.
摘要翻译：提供了一种使用数字调制技术在发射机和接收机之间传送信号的系统。本发明特别适用于满足电力线通信的要求。在本发明的一个优选实施例中，调制技术是差分二进制相移键调制。该系统为数据的调制和解调提供了低成本，简单的延迟和乘法过程。该系统适用于ASIC实现，从而进一步降低系统的成本，同时在嘈杂的环境中提高系统的可靠性。

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