Altera Corporation

University of California

Kerry S Veenstra

Richard G Cliff

Bruce B Pedersen

Francis B Heile

Srinivas T Reddy

Craig S Lytle

Joseph Huang

David Wolk Mendel

Chiakang Sung

Christopher F Lane

Keith Duwel

Krishna Rangasayee

Bonnie I Wang

Ninh D Ngo

Juju Joyce

Nitin Prasad

Rina Raman

Renxin Xia

Andy Louie Lee

L Todd Cope

Bahram Ahanin

Cameron R McClintock

David Edward Jefferson

Michael Fairman

Fung Fung Lee

Aaron Ferrucci

Robert N Bielby

Robert R Bielby

Robert Richard Noel Bielby

Jeffrey Orion Pritchard

Alan Louis Herrmann

Tim Allen

Andreas Papaliolios

Timothy Allen

Richard Shaw Terrill

John E Turner

Andrew Martyn Draper

Ketan H Zaveri

Manuel M Mejia

Chris Lane

Bryan H Hoyer

Mario E Guzman

Paul Metzgen

Boon Jin Ang

Kevin A Norman

Peter Douglas Bain

Sau-Ching Wong

David Arthur Van Brink

Hock-Chuen So

Katia Obraczka

Boon-Jin Ang

David Van Brink

Bruce B Pendersen

Juju Chacko Joyce

A method and apparatus for efficient deployment of nodes in a network includes obtaining first data that indicates first locations of nodes in a network and terrain data that indicates height of terrain at terrain locations. The method further includes determining an exploration region for a first node and dividing the exploration region into subregions. The method further includes determining a proxy location for each subregion that is a location corresponding to a characteristic of the terrain data in the subregion. The method further includes determining a value of a parameter that indicates a contribution of the first node at each proxy location to network fitness. The method further includes assigning a second location to the first node based on the determined parameter value at each proxy location. The method further includes relocating the first node from the first location to the second location.

Apparatus and method for efficient deployment of nodes in a network

A circuit arrangement includes a programmable logic device. The programmable logic device includes configuration logic circuitry. The programmable logic device also includes configurable interconnects. The circuit arrangement further includes a storage device configured to provide data to the programmable logic device. The storage device communicates with the programmable logic device via a bi-directional interface.

Apparatus and methods for communicating with programmable devices

A signal routing apparatus comprises a register bank to store a set of data signals. A delay locked loop generates a set of phase displaced clock signals. A phase controlled read circuit sequentially routes the set of data signals from the register bank in response to the phase displaced clock signals. A Low Voltage Differential Signaling buffer connected to the phase controlled read circuit transmits the data signals in a Low Voltage Differential Signaling mode. The phase displaced clock signals operate in lieu of a higher clock rate in order to reduce power consumption.

Apparatus and method for routing of signals

According to various embodiments, a programmable device assembly includes an FPGA coupled to a nonvolatile serial configuration memory (e.g., serial flash memory) and a volatile fast bulk memory (e.g., SRAM or SDRAM). The nonvolatile serial configuration memory contains both the FPGA configuration data and CPU instructions. When a predetermined condition occurs, a serial memory access component that is hard coded on the FPGA automatically reads the configuration data from the nonvolatile serial configuration memory. The configuration data is used to configure the FPGA with various components, including a CPU, a boot ROM with code for a boot copier, and a bus structure. When the CPU boots, code for the boot copier is executed so that the CPU instructions are copied from the nonvolatile serial configuration memory to the volatile fast bulk memory. The CPU then executes the CPU instructions stored in the volatile fast bulk memory.

Booting mechanism for FPGA-based embedded system

Techniques and mechanisms provide numerous representations and/or control of component interconnections in a digital design. For example, aspects of the invention provide a connection panel where connections can be presented in different modes. The different modes can run concurrently with each other or separately from each other. The different modes can also be manually or automatically selected to switch from one mode to another mode. For instance, the modes can be manually selected using an on-screen button or automatically selected by examining the location of the mouse pointer on the connection panel. Based on the different modes, component interconnections can be easily and efficiently handled and presented. Further, components can be automatically organized to minimize the number of crossing interconnects between them and/or maximize the amount of interconnection information presented.

Tool with graphical interconnect matrix

Error detection circuitry is provided on a programmable logic resource. Programmable logic resource configuration data is loaded into a cyclic redundancy check (CRC) module where a checksum calculation may be performed. In one embodiment, the checksum may be compared to an expected value, which is a precomputed checksum on data prior to being programmed into or while data is being programmed into a programmable logic resource. In another embodiment, the expected value may be included in the checksum calculation. An output indicating whether an error is detected may be generated depending on the relationship between the checksum and the expected value, or on the value of the checksum. This output may be sent to an output pin that is accessible by user logic.

Error detection on programmable logic resources

According to various embodiments of the present invention, a programmable device assembly includes an FPGA coupled to a nonvolatile serial configuration memory (e.g., serial flash memory) and a volatile fast bulk memory (e.g., SRAM or SDRAM). The nonvolatile serial configuration memory contains both the FPGA configuration data and CPU instructions. When a predetermined condition occurs, a serial memory access component that is hard coded on the FPGA automatically reads the configuration data from the nonvolatile serial configuration memory. The configuration data is used to configure the FPGA with various components, including a CPU, a boot ROM with code for a boot copier, and a bus structure. When the CPU boots, code for the boot copier is executed so that the CPU instructions are copied from the nonvolatile serial configuration memory to the volatile fast bulk memory. The CPU then executes the CPU instructions stored in the volatile fast bulk memory.

Design tool with graphical interconnect matrix

Apparatus and methods for communicating with programmable logic devices

Apparatus and method for low power routing of signals in a low voltage differential signaling system

Growing community of inventors

San Jose, CA, United States of America

Kerry S Veenstra