1
William S Carter: Configurable logic element. Xilinx, Alan H MacPherson Richard Franklin Edel M Young, November 10, 1987: US04706216 (470 worldwide citation)

A configurable logic circuit achieves versatility by including a configurable combinational logic element, a configurable storage circuit, and a configurable output select logic. The input signals to the configurable combinational logic element are input signals to the configurable logic circuit and ...


2
Randy T Ong: Programmable logic device which stores more than one configuration and means for switching configurations. Xilinx, Edel M Young, Greg T Sueoka, June 20, 1995: US05426378 (424 worldwide citation)

A programmable logic device includes a configuration memory expanded to store two or more complete sets of configuration data. A switch on the output of the configuration memory controls the selection of the configuration data applied to the configurable logic block. Each configurable logic block ha ...


3
Steven P Young, Kamal Chaudhary, Trevor J Bauer: FPGA repeatable interconnect structure with hierarchical interconnect lines. XILINX, Lois D Cartier, Edel M Young, June 22, 1999: US05914616 (330 worldwide citation)

The invention provides an FPGA interconnect structure preferably included in an array of identical tiles. A combination of single-length lines connecting to adjacent tiles and intermediate-length lines connecting to tiles several tiles away creates an interconnect hierarchy which allows any logic bl ...


4
Thomas A Kean: Hierarchically connectable configurable cellular array. Xilinx, Edel M Young, November 21, 1995: US05469003 (305 worldwide citation)

An field programmable gate array (FPGA) of cells arranged in rows and columns is interconnected by a hierarchical routing structure. Switches separate the cells into blocks and into blocks of blocks with routing lines interconnecting the switches to form the hierarchy. Also, select units for allowin ...


5
Bernard J New: Logic structure and circuit for fast carry. Xilinx, Edel M Young, September 20, 1994: US05349250 (291 worldwide citation)

Programmable logic devices which include multiple blocks of combinatorial function generators and storage elements, and which are interconnected by a programmable interconnect structure are used, among other things for performing arithmetic functions which use logic for generating the carry function ...


6
William S Carter: Microprocessor oriented configurable logic element. Xilinx, Alan H MacPherson, Edel M Young, Terrence E Dooher, July 19, 1988: US04758985 (262 worldwide citation)

A microprocessor controlled configurable logic circuit achieves versatility by including a configurable combinational logic element, a configurable storage circuit, a configurable status buffer, and a configurable output select logic. The input signals to the configurable combinational logic element ...


7
Ross H Freeman, Hung Cheng Hsieh: Distributed memory architecture for a configurable logic array and method for using distributed memory. Xilinx, Edel M Young, Patrick T Bever, August 30, 1994: US05343406 (251 worldwide citation)

Additional circuitry for a configurable logic array having logic functions which are programmed by loading memory cells which cause the logic array to generate a desired function. With the additional circuitry, the memory cells can also be used as memory for access by other parts of the logic array ...


8
Stephen M Trimberger: Method for making large-scale ASIC using pre-engineered long distance routing structure. Xilinx, Patrick T Bever, H C Chan, Edel M Young, July 29, 2003: US06601227 (247 worldwide citation)

Optimal routing line segments and associated buffers are pre-engineered for each family of ASIC chips by simulating wires segments of various lengths using distributed resistance and capacitance wire models, and by estimating crosstalk from neighboring line segments. During ASIC design, space is res ...


9
F Erich Goetting, Stephen M Trimberger: Logic cell for field programmable gate array having optional internal feedback and optional cascade. Xilinx, Edel M Young, November 15, 1994: US05365125 (246 worldwide citation)

The logic cell of the current invention is useful in a field programmable logic device, particularly a device in which an interconnect structure is interconnected by antifuses, and logic cells are programmed using pass transistors. All input leads of the logic cell can be selectively inverted. The o ...


10
Danesh Tavana, Wilson K Yee, Stephen M Trimberger: Integrated circuit with field programmable and application specific logic areas. Xilinx, Edel M Young, Adam H Tachner, Lois D Cartier, October 20, 1998: US05825202 (234 worldwide citation)

A heterogeneous integrated circuit device comprising a field programmable gate array (FPGA) programmably connected to a mask-defined application specific logic area (ASLA) on an integrated circuit thus providing a flexible low cost alternative to a homogeneous device of one type or the other. By int ...



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