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公开(公告)号：US08901946B2
公开(公告)日：2014-12-02
申请号：US12785572
申请日：2010-05-24
CPC分类号： G01R31/2813 , G01R31/2815
摘要： Apparatus and methods for identifying a signal on a printed circuit board (‘PCB’) under test, including an integrated circuit mounted on the PCB, the integrated circuit having a test signal generator that transmits a test signal to an output pin of the integrated circuit, with the output pin connected to a test point on the PCB; the integrated circuit also having signal identification logic that inserts into the test signal, an identifier of the signal; a test probe in contact with the test point; and a signal-identifying controller that receives the test signal and the identifier from the test probe and displays, in dependence upon the identifier, the identity of the signal.
摘要翻译： 用于识别被测PCB板上的信号的装置和方法，包括安装在PCB上的集成电路，该集成电路具有测试信号发生器，该测试信号发生器将测试信号发送到集成电路的输出引脚 ，输出引脚连接到PCB上的测试点; 该集成电路还具有插入到测试信号中的信号识别逻辑，该信号的标识符; 与测试点接触的测试探针; 以及信号识别控制器，其从测试探针接收测试信号和标识符，并根据标识符显示信号的身份。
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公开(公告)号：US08456928B2
公开(公告)日：2013-06-04
申请号：US12785697
申请日：2010-05-24
IPC分类号： G11C5/14
摘要： A method provides improved signal quality in a computer memory system. In one embodiment, a digital signal is generated having a voltage interpreted with respect to a reference voltage. The reference voltage is dynamically adjusted as a function of the traffic intensity at which the digital signal is directed to a particular receiver. A training phase may be performed for each DIMM of the memory system, to construct a lookup table correlating suitable reference voltages with different traffic intensities. The lookup table may be referenced during a subsequent execution phase, to dynamically select a reference voltage according to changing traffic intensity. The dynamically selected reference voltage value may be enforced by using transistors to selectively recruit resistors of a resistor network.
摘要翻译： 一种方法在计算机存储系统中提供改进的信号质量。 在一个实施例中，产生具有相对于参考电压解释的电压的数字信号。 作为数字信号被引导到特定接收机的业务强度的函数来动态地调整参考电压。 可以对存储器系统的每个DIMM执行训练阶段，以构建将适当的参考电压与不同的交通强度相关联的查找表。 可以在随后的执行阶段期间参考查找表，以根据变化的业务强度来动态地选择参考电压。 可以通过使用晶体管来选择性地招募电阻器网络的电阻器来实施动态选择的参考电压值。
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公开(公告)号：US20110279138A1
公开(公告)日：2011-11-17
申请号：US12780333
申请日：2010-05-14
IPC分类号： G01R31/02 , G01R31/304
CPC分类号： G01R31/2843 , G01R31/2806 , G01R31/2834 , G01R31/2839 , G01R31/3025
摘要： Identifying a signal on a printed circuit board (‘PCB’) under test, including a test probe with a radio transmitter and transmitter antenna, the test probe positioned with the transmitter antenna at a test point on the PCB, the test probe transmitting a radio signal; at least two radio receivers, each receiver having a receiver antenna, each receiver antenna positioned at predetermined, separate physical locations with respect to the PCB, the receivers coupled to at least one signal strength meter, each receiver receiving the transmitted radio signal; and a signal-identifying controller connected to the signal strength meter, the signal-identifying controller reading, from the signal strength meter, signal strengths of the transmitted radio signal as received at the radio receivers; determining, in dependence upon the read signal strengths, a test signal identifier; and displaying the test signal identifier.
摘要翻译： 识别在被测试的印刷电路板（“PCB”）上的信号，包括带有无线电发射机和发射机天线的测试探头，测试探头定位在发射机天线位于PCB的测试点，测试探头发射无线电 信号; 至少两个无线电接收机，每个接收机具有接收机天线，每个接收机天线相对于所述PCB定位在预定的分离的物理位置，所述接收机耦合到至少一个信号强度计，每个接收机接收所传输的无线电信号; 信号识别控制器，连接到信号强度计，信号识别控制器从信号强度计读取在无线电接收机处接收的发射的无线电信号的信号强度; 根据读取的信号强度来确定测试信号标识符; 并显示测试信号标识符。
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公开(公告)号：US08319113B2
公开(公告)日：2012-11-27
申请号：US12797244
申请日：2010-06-09
CPC分类号： H05K1/024 , H05K3/4602 , H05K3/4697 , Y10T29/49124 , Y10T29/49155
摘要： A printed circuit board (‘PCB’) with reduced dielectric loss, including conductive traces disposed upon layers of dielectric material, the layers of dielectric material including core layers and prepreg layers, one or more of the layers of dielectric material including pockets of air that reduce an overall relative dielectric constant of the PCB.
摘要翻译： 一种具有降低的介质损耗的印刷电路板（PCB），包括设置在介电材料层上的导电迹线，所述介电材料层包括芯层和预浸料层，介电材料层中的一个或多个包括空气袋， PCB的总相对介电常数。
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公开(公告)号：US20110303445A1
公开(公告)日：2011-12-15
申请号：US12797244
申请日：2010-06-09
CPC分类号： H05K1/024 , H05K3/4602 , H05K3/4697 , Y10T29/49124 , Y10T29/49155
摘要： A printed circuit board (‘PCB’) with reduced dielectric loss, including conductive traces disposed upon layers of dielectric material, the layers of dielectric material including core layers and prepreg layers, one or more of the layers of dielectric material including pockets of air that reduce an overall relative dielectric constant of the PCB.
摘要翻译： 一种具有降低的介电损耗的印刷电路板（“PCB”），包括设置在电介质材料层上的导电迹线，介电材料层包括芯层和预浸料层，介电材料层中的一层或多层包括空气袋 降低PCB的整体相对介电常数。
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公开(公告)号：US20110291688A1
公开(公告)日：2011-12-01
申请号：US12785572
申请日：2010-05-24
IPC分类号： G01R31/02
CPC分类号： G01R31/2813 , G01R31/2815
摘要： Apparatus and methods for identifying a signal on a printed circuit board (‘PCB’) under test, including an integrated circuit mounted on the PCB, the integrated circuit having a test signal generator that transmits a test signal to an output pin of the integrated circuit, with the output pin connected to a test point on the PCB; the integrated circuit also having signal identification logic that inserts into the test signal, an identifier of the signal; a test probe in contact with the test point; and a signal-identifying controller that receives the test signal and the identifier from the test probe and displays, in dependence upon the identifier, the identity of the signal.
摘要翻译： 用于识别被测PCB板上的信号的装置和方法，包括安装在PCB上的集成电路，该集成电路具有测试信号发生器，该测试信号发生器将测试信号发送到集成电路的输出引脚 ，输出引脚连接到PCB上的测试点; 该集成电路还具有插入到测试信号中的信号识别逻辑，该信号的标识符; 与测试点接触的测试探针; 以及信号识别控制器，其从测试探针接收测试信号和标识符，并根据标识符显示信号的身份。
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公开(公告)号：US20110286288A1
公开(公告)日：2011-11-24
申请号：US12785697
申请日：2010-05-24
摘要： A method provides improved signal quality in a computer memory system. In one embodiment, a digital signal is generated having a voltage interpreted with respect to a reference voltage. The reference voltage is dynamically adjusted as a function of the traffic intensity at which the digital signal is directed to a particular receiver. A training phase may be performed for each DIMM of the memory system, to construct a lookup table correlating suitable reference voltages with different traffic intensities. The lookup table may be referenced during a subsequent execution phase, to dynamically select a reference voltage according to changing traffic intensity. The dynamically selected reference voltage value may be enforced by using transistors to selectively recruit resistors of a resistor network.
摘要翻译： 一种方法在计算机存储系统中提供改进的信号质量。 在一个实施例中，产生具有相对于参考电压解释的电压的数字信号。 作为数字信号被引导到特定接收机的业务强度的函数来动态地调整参考电压。 可以对存储器系统的每个DIMM执行训练阶段，以构建将适当的参考电压与不同的交通强度相关联的查找表。 可以在随后的执行阶段期间参考查找表，以根据变化的业务强度来动态地选择参考电压。 可以通过使用晶体管来选择性地招募电阻器网络的电阻器来实施动态选择的参考电压值。
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公开(公告)号：US09338881B2
公开(公告)日：2016-05-10
申请号：US13531959
申请日：2012-06-25
CPC分类号： H05K1/024 , H05K3/4602 , H05K3/4697 , Y10T29/49124 , Y10T29/49155
摘要： In a particular embodiment, a method of manufacturing a printed circuit board (‘PCB’) with reduced dielectric loss includes fabricating conductive traces disposed upon layers of dielectric material; and fabricating the layers of dielectric material, including core layers and prepreg layers, with one or more of the layers of dielectric material including pockets of air that reduce an overall relative dielectric constant of the PCB. In the particular embodiment, the conductive traces are disposed upon layers of the dielectric material orthogonally with respect to one another and the pockets of air are aligned at an angle of 45 degrees with respect to the conductive traces.
摘要翻译： 在特定实施例中，制造具有降低的介电损耗的印刷电路板（“PCB”）的方法包括制造设置在电介质材料层上的导电迹线; 以及制造包括芯层和预浸料层的介电材料层，其中一个或多个介电材料层包括空气袋，其减小PCB的总体相对介电常数。 在特定实施例中，导电迹线相对于彼此正交地布置在电介质材料的层上，并且空气袋相对于导电迹线以45度的角度对准。
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公开(公告)号：US08542494B2
公开(公告)日：2013-09-24
申请号：US12770691
申请日：2010-04-29
CPC分类号： H05K3/42 , H05K1/024 , H05K1/0251 , H05K1/115 , H05K2201/0792 , H05K2201/09063 , Y10T29/49165
摘要： A circuit board includes layers, a pair of vias filled with a conductive material and extending through the layers, first and second pairs of conductive signal paths, and holes extending at least partially through the layers and located between the pair of vias. The first pair of conductive paths is connected to the pair of vias within a first layer; the second pair of conductive paths is connected to the pair of vias within a second layer. The pair of vias has a pair of via stubs defined between the second layer and a bottom layer. A differential signal is to be transmitted between the first and second pairs of conductive signal paths via the pair of vias. The holes have a lower dielectric constant than the layers to increase a resonant frequency of the pair of via stubs beyond the frequency of the differential signal.
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公开(公告)号：US08558567B2
公开(公告)日：2013-10-15
申请号：US12780333
申请日：2010-05-14
CPC分类号： G01R31/2843 , G01R31/2806 , G01R31/2834 , G01R31/2839 , G01R31/3025
摘要： Identifying a signal on a printed circuit board (‘PCB’) under test, including a test probe with a radio transmitter and transmitter antenna, the test probe positioned with the transmitter antenna at a test point on the PCB, the test probe transmitting a radio signal; at least two radio receivers, each receiver having a receiver antenna, each receiver antenna positioned at predetermined, separate physical locations with respect to the PCB, the receivers coupled to at least one signal strength meter, each receiver receiving the transmitted radio signal; and a signal-identifying controller connected to the signal strength meter, the signal-identifying controller reading, from the signal strength meter, signal strengths of the transmitted radio signal as received at the radio receivers; determining, in dependence upon the read signal strengths, a test signal identifier; and displaying the test signal identifier.
摘要翻译： 识别在被测试的印刷电路板（“PCB”）上的信号，包括带有无线电发射机和发射机天线的测试探头，测试探头定位在发射机天线位于PCB的测试点，测试探头发射无线电 信号; 至少两个无线电接收机，每个接收机具有接收机天线，每个接收机天线相对于所述PCB定位在预定的分离的物理位置，所述接收机耦合到至少一个信号强度计，每个接收机接收所传输的无线电信号; 信号识别控制器，连接到信号强度计，信号识别控制器从信号强度计读取在无线电接收机处接收的发射的无线电信号的信号强度; 根据读取的信号强度来确定测试信号标识符; 并显示测试信号标识符。
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