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1. 发明申请

US20170302247A9 METHOD AND APPARATUS FOR DETECTING RF FIELD STRENGTH 有权
公开(公告)号：US20170302247A9
公开(公告)日：2017-10-19
申请号：US14150392
申请日：2014-01-08
申请人： Shahriar Rokhsaz , Edwin de Angel
发明人： Shahriar Rokhsaz , Edwin de Angel
IPC分类号： H03H7/40 , H03J3/20 , H04B5/00
CPC分类号： H03H7/40 , H03J3/20 , H03J2200/10 , H04B5/0037
摘要： A method and apparatus for detecting RF field strength. A field strength reference generator develops a field strength reference current as a function of a field strength of a received RF signal; and a field strength quantizer develops a digital field-strength value indicative of the field strength reference current. In one embodiment, detected field strength is used to dynamically vary the impedance of a tank circuit whereby, over time, induced current is maximized.

2. 发明授权

US08749319B2 Method and apparatus for detecting RF field strength 有权
标题翻译：检测射频场强的方法和装置
公开(公告)号：US08749319B2
公开(公告)日：2014-06-10
申请号：US13209420
申请日：2011-08-14
申请人： Shahriar Rokhsaz , Edwin de Angel
发明人： Shahriar Rokhsaz , Edwin de Angel
IPC分类号： H03H7/40
CPC分类号： H03H7/40 , H03J3/20 , H03J2200/10 , H04B5/0037
摘要： A method and apparatus for detecting RF field strength. A field strength reference generator develops a field strength reference current as a function of a field strength of a received RF signal; and a field strength quantizer develops a digital field-strength value indicative of the field strength reference current. In one embodiment, detected field strength is used to dynamically vary the impedance of a tank circuit whereby, over time, induced current is maximized.
摘要翻译：一种用于检测射频场强度的方法和装置。场强参考发生器产生作为接收的RF信号的场强的函数的场强参考电流; 并且场强量化器产生指示场强参考电流的数字场强值。在一个实施例中，使用检测的场强来动态地改变储能电路的阻抗，由此随着时间的推移，感应电流最大化。

3. 发明申请

US20110300808A1 Method and Apparatus for Detecting RF Field Strength 有权
标题翻译：用于检测射频场强的方法和装置
公开(公告)号：US20110300808A1
公开(公告)日：2011-12-08
申请号：US13209420
申请日：2011-08-14
申请人： Shahriar Rokhsaz , Edwin de Angel
发明人： Shahriar Rokhsaz , Edwin de Angel
IPC分类号： H04W24/00 , H03J3/20
CPC分类号： H03H7/40 , H03J3/20 , H03J2200/10 , H04B5/0037
摘要： A method and apparatus for detecting RF field strength. A field strength reference generator develops a field strength reference current as a function of a field strength of a received RF signal; and a field strength quantizer develops a digital field-strength value indicative of the field strength reference current. In one embodiment, detected field strength is used to dynamically vary the impedance of a tank circuit whereby, over time, induced current is maximized.
摘要翻译：一种用于检测射频场强度的方法和装置。场强参考发生器产生作为接收的RF信号的场强的函数的场强参考电流; 并且场强量化器产生指示场强参考电流的数字场强值。在一个实施例中，使用检测的场强来动态地改变储能电路的阻抗，由此随着时间的推移，感应电流最大化。

4. 发明授权

US07218612B2 Network synchronization 有权
标题翻译：网络同步
公开(公告)号：US07218612B2
公开(公告)日：2007-05-15
申请号：US10457113
申请日：2003-06-09
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
IPC分类号： H04L12/26 , G01V1/00
CPC分类号： H04J3/0682 , G01V1/22
摘要： A network arrangement uses a poll select control protocol and a loop back arrangement at each node for equalizing transmission delay from each node to a central station. Delays at each node can be adjusted to start timing in response to a broadcast signal indicating an amount of delay to be applied from the start of a synchronization interval to the beginning of transmission of data collected at the nodes. The arrangement is particularly useful in the field of data acquisition and particularly in the area of seismic sensing.
摘要翻译：网络布置在每个节点处使用轮询选择控制协议和循环布置来均衡从每个节点到中心站的传输延迟。可以调整每个节点的延迟以响应于指示从同步间隔开始到在节点处收集的数据的传输的开始而应用的延迟量的广播信号。该方案在数据采集领域尤其在地震检测领域特别有用。

5. 发明授权

US06980037B1 Power on reset techniques for an integrated circuit chip 有权
标题翻译：集成电路芯片的上电复位技术
公开(公告)号：US06980037B1
公开(公告)日：2005-12-27
申请号：US09153864
申请日：1998-09-16
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
IPC分类号： H03L3/00 , H03L7/00 , H03L7/06
CPC分类号： H03L7/06 , H03L3/00
摘要： A power on reset circuit, preferably for an integrated circuit, detects application of voltage, starts a phase locked loop one application of voltage is detected but inhibits all clock used for digital logic operations until voltage stability is achieved. If a switched converter is used, the duty cycle of the switched converter is held at unity for a period of time before it is set to that needed to achieve the desired chip operating voltage. Clocks controlling other circuits can be released in stages after the duty cycle of the switched converter is set to its operating voltage level.
摘要翻译：上电复位电路，优选用于集成电路，检测电压的施加，启动锁相环，检测到电压的一个应用，但是抑制用于数字逻辑运算的所有时钟，直到达到电压稳定。如果使用开关转换器，则在将其设置为实现期望的芯片工作电压所需的时间之前，将开关转换器的占空比保持在一定的时间。在切换转换器的占空比被设置为其工作电压电平之后，可以分阶段释放控制其它电路的时钟。

6. 发明授权

US06857002B1 Integrated circuit with a mode control selecting settled and unsettled output from a filter 有权
标题翻译：具有模式控制的集成电路，从滤波器选择稳定和未稳定的输出
公开(公告)号：US06857002B1
公开(公告)日：2005-02-15
申请号：US09695704
申请日：2000-10-25
申请人： Axel Thomsen , Jerome E. Johnston , Edwin De Angel , Aryesh Amar
发明人： Axel Thomsen , Jerome E. Johnston , Edwin De Angel , Aryesh Amar
IPC分类号： G06F13/00 , G06F17/10 , H03H17/02 , H03M3/02
CPC分类号： H03H17/0294 , H03M3/392 , H03M3/462
摘要： In a signal processing integrated circuit having an analog to digital converter and a digital filter having a plurality of taps separated in time, when starting a conversion after a reset or a change of input channel, the filter will have an incomplete set of input data as the delayed inputs to an output calculation are all zero from the reset operation. After reset, during the time that data are filling up the filter pipeline, the calculation of an output value will give a result that holds information about the input, but does not present the data with the same scaling and frequency content as the fully settled filter. The integrated circuit selectively provides two modes, on that provides only fully settled data from the filter or and another that provides all data from the filter, including unsettled data. Knowledge about the filter coefficients can be utilized by a user or user process to extract information about the input from the unsettled data.
摘要翻译：在具有模拟数字转换器的信号处理集成电路和具有时间分离的多个抽头的数字滤波器的情况下，当在复位或输入通道改变之后开始转换时，滤波器将具有不完整的输入数据集输出计算的延迟输入从复位操作全部为零。在复位之后，在数据填满过滤器管线的时间期间，输出值的计算将给出保存有关输入信息的结果，但不显示具有与完全设置的过滤器相同的缩放和频率内容的数据。集成电路有选择地提供两种模式，其中仅提供来自滤波器的完全确定的数据，或者提供来自滤波器的所有数据的另一种模式，包括不稳定的数据。关于滤波器系数的知识可以由用户或用户进程利用来从未解决的数据中提取关于输入的信息。

7. 发明授权

US06281718B1 Noise management using a switched converter 有权
标题翻译：使用开关转换器进行噪声管理
公开(公告)号：US06281718B1
公开(公告)日：2001-08-28
申请号：US09154241
申请日：1998-09-16
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
IPC分类号： H03B2100
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A switched converter uses two series connected complementary CMOS devices and has a square wave source for activating one CMOS device while deactivating the other; and a break before make circuit connected between the square wave source and said complementary CMOS devices to ensure that one device is substantially completely off before the other device turns on. The switched converter is programmable as to frequency, phase and duty cycle.
摘要翻译：开关转换器使用两个串联的互补CMOS器件，并具有用于激活一个CMOS器件的方波源，同时使另一个CMOS器件失效; 以及在使电路连接在方波源和所述互补CMOS器件之间的断路，以确保在另一器件接通之前一个器件基本上完全截止。开关转换器可编程为频率，相位和占空比。

8. 发明申请

US20140120836A1 Method and Apparatus for Detecting RF Field Strength 有权
标题翻译：用于检测射频场强的方法和装置
公开(公告)号：US20140120836A1
公开(公告)日：2014-05-01
申请号：US14150392
申请日：2014-01-08
申请人： Shahriar Rokhsaz , Edwin de Angel
发明人： Shahriar Rokhsaz , Edwin de Angel
IPC分类号： H04B5/00
CPC分类号： H03H7/40 , H03J3/20 , H03J2200/10 , H04B5/0037
摘要： A method and apparatus for detecting RF field strength. A field strength reference generator develops a field strength reference current as a function of a field strength of a received RF signal; and a field strength quantizer develops a digital field-strength value indicative of the field strength reference current. In one embodiment, detected field strength is used to dynamically vary the impedance of a tank circuit whereby, over time, induced current is maximized.
摘要翻译：一种用于检测射频场强度的方法和装置。场强参考发生器产生作为接收的RF信号的场强的函数的场强参考电流; 并且场强量化器产生指示场强参考电流的数字场强值。在一个实施例中，使用检测的场强来动态地改变储能电路的阻抗，由此随着时间的推移，感应电流最大化。

9. 发明授权

US06525589B1 Application of a conditionally stable instrumentation amplifier to industrial measurement 有权
标题翻译：将有条件稳定的仪表放大器应用于工业测量
公开(公告)号：US06525589B1
公开(公告)日：2003-02-25
申请号：US09695705
申请日：2000-10-25
申请人： Axel Thomsen , Edwin De Angel , Sherry Wu , Aryesh Amar , Jerome E. Johnston
发明人： Axel Thomsen , Edwin De Angel , Sherry Wu , Aryesh Amar , Jerome E. Johnston
IPC分类号： H03K1716
CPC分类号： H03M3/494 , G01D3/022 , H03M3/448 , H03M3/452
摘要： An instrumentation circuit has an integrated circuit that has input terminals, an amplifier arrangement using feed forward compensation and an analog to digital converter and a serial data output receiving the output from said amplifier arrangement. A bridge circuit, having a transducer, or a thermocouple arrangement are connected to input terminals of the integrated circuit.
摘要翻译：仪表电路具有具有输入端子的集成电路，使用前馈补偿的放大器装置和模数转换器以及接收来自所述放大器装置的输出的串行数据输出。具有换能器或热电偶布置的桥式电路连接到集成电路的输入端子。

10. 发明授权

US06337636B1 System and techniques for seismic data acquisition 有权
标题翻译：地震数据采集系统和技术
公开(公告)号：US06337636B1
公开(公告)日：2002-01-08
申请号：US09153867
申请日：1998-09-16
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
IPC分类号： G08C1508
CPC分类号： H03H17/0288 , G01V1/22 , G01V1/26
摘要： A data acquisition system has a central station connected to a plurality of nodes over a network. Each node is connected to receive signals from one or more sensors ad each is configured to have substantially the same transmission delay to said central station. The central station is configured to notify all nodes of an event time at which a data event, such as a seismic shot, occurred.
摘要翻译：数据采集系统具有通过网络连接到多个节点的中心站。每个节点被连接以从一个或多个传感器接收信号，每个传感器被配置为具有与所述中心站基本上相同的传输延迟。中心站被配置为通知所有节点发生诸如地震拍摄的数据事件的事件时间。

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