U.S. patents available from 1976 to present.
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Method and apparatus for an enhanced computer system interface

Patent 5454085 Issued on September 26, 1995. Estimated Expiration Date: Icon_subject February 24, 2015. 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.

Patent References

3303482

3544777

3693159

3772652

3803560

3905023

3917933

Memory sparing arrangement
Patent #: 4093985
Issued on: 06/06/1978
Inventor: Das

Data interface mechanism for interfacing bit-parallel data buses of different bit width
Patent #: 4309754
Issued on: 01/05/1982
Inventor: Dinwiddie, Jr.

Microcontroller for controlling byte transfers between two external interfaces
Patent #: 4339795
Issued on: 07/13/1982
Inventor: Brereton ,   et al.

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Inventors

Assignee

Application

No. 394055 filed on 02/24/1995

US Classes:

710/105, Protocol370/463, Details of circuit or interface for connecting user to the network710/64, Via common units and peripheral-specific units710/74, For data storage device710/307, Variable or multiple bus width711/114Arrayed (e.g., RAIDs)

Examiners

Primary: Ray, Gopal C.

Attorney, Agent or Firm

Foreign Patent References

  • 0369707 EP 05/13/1990
  • 56-94593 JP 07/13/1981
  • 56-163596 JP 12/13/1981
  • 56-169297 JP 12/13/1981
  • 57-111890 JP 07/13/1982
  • 57-111893 JP 07/13/1982
  • 57-195397 JP 12/13/1982
  • 58-83400 JP 05/13/1983
  • 60-156152 JP 08/13/1985
  • 61-99999 JP 05/13/1986

International Classes

G06F 013/00
G06F 013/38

Abstract

An improved interface system based in part on the SCSI standard is provided. A single cable data bus simultaneously transfers several bytes of information between two devices. The interface system transfers multiple-byte commands, messages, status information or data in a single parallel transfer. A microsequencer is provided to permit data transfers across the interface without requiring burdensome attention from a processor in a device involved in the transfer.

Other References

  • American National Standard for Information Systems (ANSI) Small Computer System Interface-2 (SCSI-2), Rev. 10, ANSI document number X3.131-198X, Jun. 23, 1989
  • Andres et al., "Card-to-Card Communication," IBM Technical Disclosure Bulletin, vol. 25, No. 10, Mar. 1983, pp. 5236-5239
  • G. Humphrey, "SCSI-Small Computer System Interface," Electronics & Wireless World, vol. 95, No. 1643, Sep. 1989, pp. 884-888
  • W. Jilke, "Disk Array Mass Storage Systems: The New Opportunity," Amperif Corporation, Sep. 30, 1986, pp. 1-11
  • W. Jilke, "Economics Study of Disk Array Mass Storage Systems: The Cost Reduction Opportunity," Amperif Corporation, Mar. 24, 1987, pp. 1-13
  • D. Karr, "Designing to Full SCSI Implementation for Performance Improvement," 8080 Wescon Proceedings, San Francisco, California, Nov. 19-22, 1985
  • M. Kim, "Synchronized Disk Interleaving," IEEE Transactions on Computers, vol. C-35, No. 11, Nov. 1986, pp. 978-988
  • D. Lieberman, "SCSI-2 Controller Board Builds Parallel Disk Drive Arrays," Computer Design, vol. 28, No. 7, Apr. 1, 1989, pp. 32, 36
  • W. Meador, "Disk Array Systems," Spring Compcon89 Digest of Papers, IEEE Computer Society Press, Feb. 27-Mar. 3, 1989, pp. 143-146
  • T. Olsen, "Disk Array Performance in a Random IO Environment," Computer Architecture News, vol. 17, No. 5, Sep. 1989, pp. 71-77
  • D. Patterson et al., "A Case for Redundant Arrays of Inexpensive Disks (RAID)," Report No. UCB/CSD 87/391, Dec. 1987, pp. 1-24
  • D. Patterson et al., "A Case for Redundant Arrays of Inexpensive Disks (RAID)," ACM SIGMOD Conference, Chicago, Illinois, Jun. 1-3, 1988, pp. 109-116
  • Product Description Micropolis 1804 SCSI Parallel Drive Array, Document No. 108120 Rev A, 1987
  • Program Summary, DataStorage86, An International Forum, Sep. 22-24, 1986, Red Lion Inn, San Jose, California
  • H. Sierra, "Assessing the Promise of Disk Arrays," Canadian Datasystems, May 1989, pp. 52-53
  • D. Simpson, "RAIDs vs. SLEDs," Systems Integration, Nov. 1989, pp. 70-82
  • J. Voelcker, "Winchester Disks Reach for a Gigabyte," IEEE Spectrum, Feb. 1987, pp. 64-6
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