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Enhanced active port replicator having expansion and upgrade capabilities

  • US 5,687,387 A
  • Filed: 03/24/1995
  • Issued: 11/11/1997
  • Est. Priority Date: 08/26/1994
  • Status: Expired due to Term
First Claim
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1. An active port replicator having a data bus and an address bus, the active port replicator for replicating ports on a portable personal computer comprising:

  • one or more predetermined replicated I/O ports for connection to one or more external I/O devices;

    means for enabling said one or more replicated I/O ports on said active port replicator to mate with corresponding ports on said portable personal computer;

    means for electrically connecting one or more predetermined interfaces to the data bus and the address bus for use by said portable personal computer, said predetermined interfaces including a PCMCIA interface for removably receiving one or more PCMCIA cards; and

    means for automatically electrically disconnecting said PCMCIA interface from the data bus and the address bus when power supply voltage in said personal computer is less than a predetermined value.

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