Ansys, Inc.

Other

Neuwave Medical, Inc.

Walker Technical Co., Inc.

Koninklijke Philips Corporation N.v.

Kane Manufacturing Co.

Scott Johnson

Dennis E Johnson

Joao Moreno Geada

Altan Odabasi

Emrah Acar

John Lee

Christopher Lee Brace

Richard W Schefelker

Qian Shen

Murat Becer

Sankar Ramachandran

William Alan Mullen

Kevin H Light

Patrick Moran

David Anderson

Aveek Sarkar

Robert A Walker

Sudarsana Reddy Mallu

Tinu Thomas

Anusha Gummana

Mirza Milan

Todd R McNutt

R Keith Tipton

Joel Varnedoe

Dylan Hanks

Jesse F Dressler

Youlin Liao

Garry Childs

R Terry Ward

Christoper L Brace

Methods, systems and media for simulating or analyzing voltage drops in a power distribution network can use an incremental approach to define a portion of a design around a victim to capture a sufficient collection of aggressors that cause appreciable voltage drop on the victim, and then an incremental simulation of just the portion can be performed rather than computing simulated voltage drops across the entire design. This approach can be both computationally efficient and can limit the size of the data used in simulating dynamic voltage drops in the power distribution network. Multiple different portions can be simulated separately in separate processing cores or elements. In one embodiment, a system can provide options of user selected constraints for the simulation to provide better accuracy or use less memory. Better accuracy will normally use a larger set of aggressors for each victim at the expense of using more memory.

DVD simulation using microcircuits

Analysis of power supply noise in simulations of a design of a circuit can use per instance dynamic voltage drops (DVD) in timing analyses so that the simulated DVD values on a per victim cell basis can accurately guide the timing analysis on each victim instead of a global DVD for all victims during the timing analysis. In one embodiment, a method can: determine, during a power analysis simulation, a representation of an energy lost, during each switching window at each output of each victim cell, at one or more power supply rails of each of the victim cells in the set of victim cells due to aggressors in the design; and provide the representation of the energy lost separately for each victim cell to a timing analysis system. The representation can be a rectangle having a width defined by a switching window of a victim's output.

Dynamic voltage drop model for timing analysis

A chip package system comprising N multiple processor cores can be tested by receiving a data file characterizing the chip package system. Thereafter, simulation testing is conducted for each core for each of Mstates using the data file such that each core is active in each state while all other cores are inactive. Each simulation test results in a simulation. The simulations are then combined to result in a composite test covering Mcombinations. Related apparatus, systems, techniques and articles are also described.

Integrated circuit composite test generation

Methods, systems and media for simulating or analyzing voltage drops in a power distribution network can use an iterative approach to define a portion of a design around a victim to capture a sufficient collection of aggressors that cause appreciable voltage drop on the victim. This approach can be both computationally efficient and accurate and can limit the size of the data used in simulating dynamic voltage drops in the power distribution network.

Voltage drop analysis using local circuit representation

The present invention relates to comprehensive systems and methods for delivering energy to tissue for a wide variety of applications, including medical procedures (e.g., tissue ablation, resection, cautery, vascular thrombosis, treatment of cardiac arrhythmias and dysrhythmias, electrosurgery, tissue harvest, etc.). In certain embodiments, systems and methods are provided for identifying and treating a target tissue region adjusting for ablation-related anatomical changes (e.g., tissue contraction).

Systems and methods for energy delivery

An improved hog/livestock feeder uses a bump cone on a pendulum swivel as opposed to rotary motion. A support structure suspends a feed hopper directly above a feed pan. A bump cone swings with a pendulum motion within a funnel in the hopper. The lower edge of the bump cone is accessible between the open bottom of the hopper and the upper rim of the feed pan, such that when an animal nudges the bump cone, a gap between the hopper funnel and bump cone widens, and feed falls from the hopper and into the feed pan. The device enabling the bump cone to swing a pendulum motion may be a spring, a multi-axis joint, or a length of flexible material. A raised feed diverter structure may extend upwardly from the bottom of the feed pan, and the bump cone may be perforated to further distribute the feed.

Livestock self-feeder

Techniques for computer aided design and engineering of integrated circuits can use group identifiers of correlated signals and time delay values when using vectorless dynamic voltage drop (DVD) simulations and when using other types of simulations or analyses of a circuit design. A method in one embodiment can include the operations of: receiving a design representing an electrical circuit that includes a plurality of pins, the plurality of pins including one or more input nodes or one or more output nodes in the electrical circuit; identifying, in the design, one or more groups of pins that are correlated such that, within each identified group, all of the pins in the identified groups switch between voltage states in a correlated way; assigning, for each pin in each identified group, an identifier for the identified group and a time delay value based on the pin's delay from an initial point in the identified group's logic chain to the pin. The group identifier and the time delay at each pin can limit the switching activities in the DVD simulations to reduce pessimistic results from the simulations. Other methods are described, and data processing systems and machine readable media that cause such systems to perform these methods are also described.

DVD analysis that accounts for delays

This disclosure describes methods, systems and media for analyzing voltage drops in a power delivery network in a simulated design of an electrical circuit. In one embodiment, a system determines, for a victim element ('victim'), a voltage drop caused by each aggressor element ('aggressor') in a set of aggressors in the design and creates a data structure that includes, for each victim, at least one of: (1) each voltage drop caused by each aggressor in the set of aggressors or (2) a sum of the voltage drops on the victim caused by all of the aggressors in the set of aggressors. The system can then compute a set of simulations based on random inputs to generate a distribution of possible voltage drops for each victim using data in the data structure.

Dynamic voltage drop analysis with improved coverage

An expression shoe includes a pedal, a base, and a bearing arrangement rotatably connecting the pedal to the base. A sensor arrangement produces a senor signal corresponding to a rotational position of the pedal with respect to the base. The sensor includes a hall-effect sensor mounted to one of the pedal and the base and a magnetic field producing device mounted to the other of the pedal and the base for producing a linear output signal in response to movement of the pedal relative to the base.

Expression shoe

Expression shoe support bracket

A radiation treatment apparatus ( ) includes a diagnostic imaging scanner ( ) that acquires a diagnostic image of a subject. A contouring processor ( ) computes a radiation treatment objective based thereon. A radiation delivery apparatus ( ) delivers radiation to the subject. An inverse planning processor ( ) computes radiation beamlet parameters conforming with the radiation treatment objective by: grouping the beamlet parameters; assigning a weight to each group ( ); optimizing a first group ( ) to produce an intermediate dosage objective corresponding to the treatment objective weighted by a weight of the first group ( ); and optimizing successive groups ( ) to produce with the previously optimized groups ( ) an increasing intermediate dosage objective corresponding to the treatment objective weighted by the combined weights of the previous and current groups ( ). A conversion processor ( ) converts the optimized beamlet parameters into configuration parameters of the radiation delivery apparatus ( ).

Inverse planning for intensity-modulated radiotherapy

Growing community of inventors

Pflugerville, TX, United States of America

Scott Johnson