The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 1995
Filed:
Nov. 02, 1994
Wen-Jai Hsieh, Palo Alto, CA (US);
Chi-Song Horng, Palo Alto, CA (US);
Chun C Wong, Palo Alto, CA (US);
I-Cube, Inc., Santa Clara, CA (US);
Abstract
A field programmable interconnect device (FPID) includes a set of ports and an array of switch cells for selectively interconnecting pairs of the ports. The switch cells are organized into a hierarchy of subarrays, and a control cell is provided for each subarray. Each switch cell includes a crosspoint switch and a single-bit memory. A bit stored in the memory indicates whether the switch, when enabled, is to interconnect its pair of FPID I/O ports. A data bit stored in each control cell indicates whether all switching cells of an associated subarray are enabled. In a 'rapid connect' mode of operation, the FPID sets the state of the bit stored in any individual switch or control cell in response to parallel input data identifying the cell and indicating the state of the bit to be stored in the cell. In the rapid connect mode, the FPID can be programmed to rapidly switch connections between individual lines or between parallel buses connected to its ports.