公开(公告)号：US06629048B1

公开(公告)日：2003-09-30

申请号：US09718875

申请日：2000-11-20

申请人： William Q. Law ,  Keith A. Taylor ,  Brian E. Rhodefer ,  Marvin E. La Voie ,  Barton T. Hickman

发明人： William Q. Law ,  Keith A. Taylor ,  Brian E. Rhodefer ,  Marvin E. La Voie ,  Barton T. Hickman

IPC分类号： G06F1122

CPC分类号： G01R1/067

摘要： A measurement test instrument voltage management system for an accessory device has a accessory device interface that provides a voltage to a memory device in the accessory device. A sensing circuit receives a sensing signal from the accessory device when it is connected to the interface. The sensing circuit generates an interrupt signal that is coupled to a controller. The controller initiates the generation of a clock signal that is coupled to the accessory device through the interface to retrieve accessory device data stored in the device memory. The controller determines if the connected accessory device is a valid device capable of being supported by the measurement test instrument. The controller generates an enable signal for a valid and supported device that is coupled to a voltage switching circuit. The voltage switching circuit generates at least a first output voltage that is coupled to the accessory device via the interface to provide power to the accessory device.

摘要翻译： 用于附件设备的测量测试仪器电压管理系统具有附件设备接口，其为附件设备中的存储设备提供电压。 感测电路在连接到接口时从辅助设备接收感测信号。 感测电路产生耦合到控制器的中断信号。 控制器通过接口开始生成与辅助设备耦合的时钟信号，以检索存储在设备存储器中的附件设备数据。 控制器确定连接的附件设备是否是能够被测量测试仪器支持的有效设备。 控制器为耦合到电压切换电路的有效且受支持的设备产生使能信号。 电压切换电路至少产生经由接口耦合到附件装置的第一输出电压，以向附件装置供电。

公开(公告)号：US07254498B2

公开(公告)日：2007-08-07

申请号：US10686412

申请日：2003-10-14

申请人： John J. Pickerd ,  Marvin E. La Voie ,  Rolf Anderson

发明人： John J. Pickerd ,  Marvin E. La Voie ,  Rolf Anderson

IPC分类号： G06F19/00

CPC分类号： G01R13/0272

摘要： A method and apparatus for selectively providing bandwidth extension and channel matching for acquired signals under test (SUT). The method and apparatus includes a signal acquisition device for acquiring a signal under test (SUT) and generating therefrom a stream of acquired samples, where the signal acquisition device having associated with it a first bandwidth defining a nominal pass band. At least one digital filter imparts a gain equalization function to the acquired SUT samples within a spectral region including and extending beyond the nominal passband. A controller generates a display signal suitable for use by a display device, where the display signal representing waveform imagery associated with the gain equalized SUT.

摘要翻译： 一种用于选择性地提供被测信号（SUT）的带宽扩展和信道匹配的方法和装置。 所述方法和装置包括用于获取被测信号（SUT）并由此生成获取样本流的信号采集装置，其中所述信号采集装置与其相关联具有限定标称通带的第一带宽。 至少一个数字滤波器对包括并超出标称通带的频谱区域内的所获取的SUT样本赋予增益均衡功能。 控制器产生适合于由显示装置使用的显示信号，其中表示与增益相等的SUT相关联的波形图像的显示信号。