System with multiple interface logic circuits including arbitrat

Details System with multiple interface logic circuits including arbitrat System with multiple interface logic circuits including arbitrat

1992-04-16

1996-04-09

Lee, Thomas C.

Boots, shoes, and leggings

395301, 3642285, 3642295, 36424292, 36423010, G06F 13368, G06F 1320

Patent

active

055069649

ABSTRACT:
A data processing and transmission network includes plural information processing systems and shared sub-systems remote from the information processing systems. Each shared sub-system includes an I/O bus and a plurality of I/O bus interface logic circuits coupled to the bus. Each interface logic circuit is coupled to one of the system processing devices via a bidirectional fiber optic link, and thereby couples its associated processing device to the I/O bus. Further fiber optic links couple each system processing device to the I/O bus of each remaining sub-system through an associated I/O bus interface logic circuit. Each sub-system further includes multiple I/O devices, each device coupled to a device controller which in turn is coupled to the I/O bus. The bus interface logic circuits and device controllers incorporate arbitration circuitry and communicate with one another via their associated I/O bus, thus to resolve contentions for control of the bus at the sub-system level rather than at the system processor level. These features provide a network with a high degree of redundancy, substantially reduced data access times, and flexibility in network configurations. Regardless of network size, each sub-system I/O device is equally available to all system processing devices, and each system processing device is transparent to the other system processors.

REFERENCES:
patent: 4237534 (1980-12-01), Felix
patent: 4257095 (1981-03-01), Nadir
patent: 4356550 (1982-10-01), Katzman et al.
patent: 4516199 (1985-05-01), Frieder et al.
patent: 4564900 (1986-01-01), Smitt
patent: 4589066 (1986-05-01), Lam et al.
patent: 4607365 (1986-08-01), Greig et al.
patent: 4608631 (1986-08-01), Stiffler et al.
patent: 4608663 (1986-08-01), Gordon
patent: 4701756 (1987-10-01), Burr
patent: 4787033 (1988-11-01), Bomba et al.
patent: 4816990 (1989-03-01), Williams
patent: 4821170 (1989-04-01), Bernick et al.
patent: 4835763 (1989-05-01), Lau
patent: 4837675 (1989-06-01), Bean et al.
patent: 4837856 (1989-06-01), Glista, Jr.
patent: 4964120 (1990-10-01), Mostashari
patent: 5081624 (1992-01-01), Beukema
patent: 5206952 (1993-04-01), Sundet et al.
patent: 5218600 (1993-06-01), Schenkyr et al.
patent: 5301279 (1994-04-01), Riley et al.
patent: 5359715 (1994-10-01), Heil et al.

Affiliated with

Also associated with

Rating

System with multiple interface logic circuits including arbitrat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System with multiple interface logic circuits including arbitrat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System with multiple interface logic circuits including arbitrat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-145829