公开(公告)号：US20110029942A1

公开(公告)日：2011-02-03

申请号：US12845204

申请日：2010-07-28

Applicant: Bin LIU ,  Zhiru ZHANG ,  Jason CONG

Inventor： Bin LIU ,  Zhiru ZHANG ,  Jason CONG

IPC: G06F17/50

CPC classification number: G06F17/505

Abstract: A method for implementing soft constraints in scheduling comprises receiving a description of circuit behavior. The description is un-timed. A scheduling solution is generated for use in scheduling the description. The scheduling solution includes scheduling variables and an objective function. The scheduling variables schedule the time of at least one operation. The objective function includes a penalty term and constraints comprising at least one hard constraint and at least one soft constraint. The constraints are created on the scheduling variables. The penalty term comprises a slack variable representing violations of the constraints. The penalty term measures the design cost of violating the soft constraint. Following generation of the scheduling solution, the description is scheduled by applying the scheduling solution to the description. Timing information of the description is provided as an output of the scheduling.

Abstract translation: 用于在调度中实现软约束的方法包括接收电路行为的描述。 描述是不及时的。 生成调度解决方案用于调度描述。 调度解决方案包括调度变量和目标函数。 调度变量调度至少一个操作的时间。 目标函数包括惩罚项和包含至少一个硬约束和至少一个软约束的约束。 在调度变量上创建约束。 惩罚项包括表示违反约束的松弛变量。 罚款条款衡量违反软约束的设计成本。 在生成调度解决方案之后，通过将调度解决方案应用于描述来调度描述。 提供描述的定时信息作为调度的输出。

公开(公告)号：US08270316B1

公开(公告)日：2012-09-18

申请号：US12363182

申请日：2009-01-30

Applicant: Mau-Chung F. Chang ,  Jason Cong ,  Adam Kaplan ,  Mishali Naik ,  Glenn Reinman ,  Eran Socher ,  Sai-Wang Tam ,  Chunyue Liu

Inventor： Mau-Chung F. Chang ,  Jason Cong ,  Adam Kaplan ,  Mishali Naik ,  Glenn Reinman ,  Eran Socher ,  Sai-Wang Tam ,  Chunyue Liu

IPC: H04L12/28

CPC classification number: G06F15/7825 ,  H04L45/60 ,  Y02D10/12 ,  Y02D10/13

Abstract: An on-chip Radio Frequency (RF) Interconnect (RF-I) for communication between internal circuit nodes of an integrated circuit is provided. In one embodiment, an integrated circuit is provided that includes an on-chip transmission line, a first circuit node associated with an RF transmitter connected to the transmission line, and a second circuit node associated with an RF receiver connected to the transmission line. In order to transmit data from the first circuit node to the second circuit node, the RF transmitter associated with the first circuit node modulates the data onto an RF carrier frequency to provide a modulated RF signal and transmits the modulated RF signal over the transmission line. The RF receiver associated with the second circuit node receives the modulated RF signal from the transmission line and demodulates the modulated RF signal to recover the data for the second circuit node.

Abstract translation: 提供用于集成电路的内部电路节点之间的通信的片上射频（RF）互连（RF-I）。 在一个实施例中，提供了集成电路，其包括片上传输线，与连接到传输线的RF发射器相关联的第一电路节点以及与连接到传输线的RF接收器相关联的第二电路节点。 为了将数据从第一电路节点发送到第二电路节点，与第一电路节点相关联的RF发射机将数据调制到RF载波频率上，以提供调制的RF信号，并通过传输线传输经调制的RF信号。 与第二电路节点相关联的RF接收机从传输线接收经调制的RF信号，并解调调制的RF信号以恢复第二电路节点的数据。

公开(公告)号：US08296710B2

公开(公告)日：2012-10-23

申请号：US12845204

申请日：2010-07-28

Applicant: Bin Liu ,  Zhiru Zhang ,  Jason Cong

Inventor： Bin Liu ,  Zhiru Zhang ,  Jason Cong

IPC: G06F17/50

CPC classification number: G06F17/505

Abstract: A method for implementing soft constraints in scheduling comprises receiving a description of circuit behavior. The description is un-timed. A scheduling solution is generated for use in scheduling the description. The scheduling solution includes scheduling variables and an objective function. The scheduling variables schedule the time of at least one operation. The objective function includes a penalty term and constraints comprising at least one hard constraint and at least one soft constraint. The constraints are created on the scheduling variables. The penalty term comprises a slack variable representing violations of the constraints. The penalty term measures the design cost of violating the soft constraint. Following generation of the scheduling solution, the description is scheduled by applying the scheduling solution to the description. Timing information of the description is provided as an output of the scheduling.

Abstract translation: 用于在调度中实现软约束的方法包括接收电路行为的描述。 描述是不及时的。 生成调度解决方案用于调度描述。 调度解决方案包括调度变量和目标函数。 调度变量调度至少一个操作的时间。 目标函数包括惩罚项和包含至少一个硬约束和至少一个软约束的约束。 在调度变量上创建约束。 惩罚项包括表示违反约束的松弛变量。 罚款条款衡量违反软约束的设计成本。 在生成调度解决方案之后，通过将调度解决方案应用于描述来调度描述。 提供描述的定时信息作为调度的输出。

公开(公告)号：US07013253B1

公开(公告)日：2006-03-14

申请号：US09823085

申请日：2001-03-29

Applicant: Jingsheng Jason Cong ,  Zhigang David Pan ,  Prasanna V. Srinivas

Inventor： Jingsheng Jason Cong ,  Zhigang David Pan ,  Prasanna V. Srinivas

IPC: G06F17/50

CPC classification number: G06F17/5036

Abstract: A method and apparatus for identifying potential noise failures in an integrated circuit design is described. In one embodiment, the method comprises locating a victim net and an aggressor within the integrated circuit design, modeling the victim net using two π-type resistor-capacitor (RC) circuits, including determining a coupling between the victim net and the aggressor, and indicating that the integrated circuit design requires modification if modeling the victim net indicates that a potential noise failure may occur in the integrated circuit design.

Abstract translation: 描述了用于识别集成电路设计中的潜在噪声故障的方法和装置。 在一个实施例中，该方法包括在集成电路设计内定位受害网络和侵略者，使用两个pi型电阻器电容器（RC）电路对受害网络进行建模，包括确定受害网络和侵略者之间的耦合，以及 表明如果对受害网络进行建模，则集成电路设计需要修改，表明集成电路设计中可能会发生潜在的噪声故障。