Patents Examined by Sang Hu Mike Kim
  • Patent number: 5282271
    Abstract: A field programmable interconnect device (FPID) flexibly interconnects a set of electronic components such as integrated circuits and other devices to one another. The FPID is an integrated circuit chip including a set of ports and a cross-point switch that can be programmed to logically connect any one port to any other port. Each FPID buffer port may be programmed to operate in various modes including unidirectional and bi-directional, with or without tristate control, and to operate at various input or output logic levels with adjustable pull up currents. Each FPID buffer port may also be programmed to perform various operations on buffered signals including adjustably delaying the signal, inverting it or forcing it high or low. The FPID is linked to a host computer via a bus that permits the host computer to program the FPID to make the desired connections, to select various modes of operation of buffers within the FPID and to read out data stored in the FPID.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: January 25, 1994
    Assignee: I-CUBE Design Systems, Inc.
    Inventors: Wen-Jai Hsieh, Yih-Chyun Jeng, Chi-Song Horng, Keith Lofstrom