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:
Jun. 20, 1995
Filed:
Dec. 21, 1993
Wen-Jai Hsieh, Vancouver, WA (US);
Yih-Chyun Jenq, Lake Oswego, OR (US);
Chi-Song Horng, Palo Alto, CA (US);
I-Cube, Inc., Santa Clara, CA (US);
Abstract
A field programmable circuit board provides a set of sockets for receiving electronic components, a set of connector pins for providing external access to the board and an array of field programmable interconnect devices (FPIDs). The FPIDs are buffered, multiple port cross-point switches that may be programmed by a host computer to selectively connect terminals of the components mounted in the sockets to one another or to the external connector pins. Signal buffers within the FPID ports automatically sense direction of flow of bidirectional signals routed by the FPIDs and buffer the signals in the appropriate direction. Each FPID buffer also samples and stores data indicating states of the buffered signals over several system clock cycles for subsequent read out by the host computer.