U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

System for PCMCIA peripheral to execute instructions from shared memory where the system reset signal causes switching between modes of operation by alerting the starting address

Patent 5537654 Issued on July 16, 1996. Estimated Expiration Date: Icon_subject July 16, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Inventors

Assignee

Application

No. 064304 filed on 05/20/1993

US Classes:

710/14, Mode selection700/40, Plural modes703/25, I/O adapter (e.g., port, controller)703/27, Compatibility emulation710/8, Peripheral configuration711/170Memory configuring

Examiners

Primary: Lee, Thomas C.
Assistant: Krick, Rehana Perveen

Attorney, Agent or Firm

International Class

G06F 003/00

Abstract

A "Personal Computer Memory Card International Association" (PCMCIA) peripheral, e.g., a modem, incorporates a shared memory interface to a personal computer. This shared memory interface provides the capability to easily program the PCMCIA peripheral either in the factory or in the field. In addition, the shared memory interface removes the requirement of having a resident "boot-up" code in the PCMCIA peripheral. Finally, the shared memory interface provides the capability to transfer user data from the personal computer, i.e., data terminal, to the PCMCIA modem at a higher data transfer rate than is currently available via the modem's universal asynchronous receive/transmit (UART) integrated circuit.

Other References

  • Winn Rosch, PCMCIA: The Expansion System of the Future PC Magazine, Jan. 26, 1993, pp. 321 to 326
  • European Search Report dated Sep. 9, 1994, regarding EPO Application No. EP 94 30 3539
  • EP-A-0 464433 filed Jun. 15, 1991. Listed as particularly relevant if taken alone, as to claims 1-11, 15-18 on European Search Report regarding EPO Application EP 94 30 3539
  • EP-A-0 268285 filed Nov. 19, 1987. Listed as technological background in European Search Report regarding EPO Application EP 94 30 3539
  • EP-A-0-536 793 filed Oct. 9, 1992. Listed as technological background in European Search Report regarding EPO Application EP 94 30 3539
  • "Reprogrammability Eases PCMCIA Designs" Publication: Electronic Design; publication date Apr. 18, 1994. Listed as intermediate document and technological background in European Search Report regarding EPO Application EP 94 30 3539
  • "Microprogram Loading System", Patent Abstracts of Japan, Publication No. JP62025353, publication date Mar. 2, 1987, Genma Hideaki et al., Int. Class: G06F13/00; G06F9/24. Listed as technological background in European Search Report regarding EPO Application EP 94 30 3539. Translation: Abstract onl
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