公开(公告)号：US08108823B2

公开(公告)日：2012-01-31

申请号：US12141453

申请日：2008-06-18

申请人： Jonathan M. Allen ,  Richard Holmquist ,  Mark J. Jeanson ,  Jordan R. Keuseman ,  George R. Zettles, IV

发明人： Jonathan M. Allen ,  Richard Holmquist ,  Mark J. Jeanson ,  Jordan R. Keuseman ,  George R. Zettles, IV

IPC分类号： G06F15/04 ,  G06F17/50

CPC分类号： G06F17/5045 ,  G06F2217/74

摘要： A computer implemented method employs software on a system for generating a logical representation of an electronic circuit undergoing a design. A predetermined grid for the circuit being designed is selected through interaction with the user through a graphical user interface. An input file defines objects to be plotted to the grid, and is read into a computer system. Objection locations relative to the grid, and connections between objects are checked and adjustments made by moving objects as necessary to align with the grid and to ensure connections between the objects. A design file of the adjusted logical representation is written for use in completing a circuit design.

摘要翻译： 计算机实现的方法在系统上使用软件来产生经历设计的电子电路的逻辑表示。 通过图形用户界面与用户交互来选择所设计的电路的预定网格。 输入文件定义要绘制到网格的对象，并读入计算机系统。 检查相对于网格的对象位置以及对象之间的连接，并根据需要移动对象进行调整，以便与网格对齐并确保对象之间的连接。 写入调整后的逻辑表示的设计文件用于完成电路设计。

公开(公告)号：US20090319974A1

公开(公告)日：2009-12-24

申请号：US12141453

申请日：2008-06-18

申请人： Jonathan M. Allen ,  Richard Holmquist ,  Mark J. Jeanson ,  Jordan R. Keuseman ,  George R. Zettles, IV

发明人： Jonathan M. Allen ,  Richard Holmquist ,  Mark J. Jeanson ,  Jordan R. Keuseman ,  George R. Zettles, IV

IPC分类号： G06F17/50

CPC分类号： G06F17/5045 ,  G06F2217/74

摘要： A computer implemented method employs software on a system for generating a logical representation of an electronic circuit undergoing a design. A predetermined grid for the circuit being designed is selected through interaction with the user through a graphical user interface. An input file defines objects to be plotted to the grid, and is read into a computer system. Objection locations relative to the grid, and connections between objects are checked and adjustments made by moving objects as necessary to align with the grid and to ensure connections between the objects. A design file of the adjusted logical representation is written for use in completing a circuit design.

摘要翻译： 计算机实现的方法在系统上使用软件来产生经历设计的电子电路的逻辑表示。 通过图形用户界面与用户交互来选择所设计的电路的预定网格。 输入文件定义要绘制到网格的对象，并读入计算机系统。 检查相对于网格的对象位置以及对象之间的连接，并根据需要移动对象进行调整，以便与网格对齐并确保对象之间的连接。 写入调整后的逻辑表示的设计文件用于完成电路设计。

公开(公告)号：US20090147827A1

公开(公告)日：2009-06-11

申请号：US11951726

申请日：2007-12-06

申请人： Richard Holmquist ,  Jordan R. Keuseman ,  David R. Motschman ,  George R. Zettles, IV

发明人： Richard Holmquist ,  Jordan R. Keuseman ,  David R. Motschman ,  George R. Zettles, IV

IPC分类号： H04B1/69

CPC分类号： G06F1/08

摘要： Implementing spread spectrum using digital signal processing techniques. An incoming clock signal is received and sampled using a programmable sampling mechanism to generate a plurality of signal data points included in a sampled signal. The sampled signal is conditioned using a programmable signal conditioning mechanism capable of performing at least one of: reducing a cycle to cycle jitter of the sampled signal; or adjusting the sampled signal to a base frequency. The signal data points are processed and spread across a band of frequencies using a programmable digital signal processor to adjust at least one of: (a) an amplitude, (b) a phase shift, or (c) a frequency shift; for each of a plurality of respective signal data points at a plurality of corresponding frequencies in the band of frequencies. An output waveform is constructed from the processed and spread signal data points, wherein the output waveform constitutes a clock output signal.

摘要翻译： 使用数字信号处理技术实现扩频。 使用可编程采样机构接收和采样输入时钟信号，以产生包括在采样信号中的多个信号数据点。 使用可执行以下中的至少一个的可编程信号调节机构调节采样信号：减少采样信号的周期抖动周期; 或将采样信号调整到基频。 信号数据点使用可编程数字信号处理器在频带上进行处理和扩展，以调整以下至少一个：（a）幅度，（b）相移或（c）频移; 对于频率带中的多个相应频率的多个相应信号数据点中的每一个。 输出波形由处理和扩展的信号数据点构成，其中输出波形构成时钟输出信号。