Patent · US Expired

Linked data systems

US4454577A · kind A · utility

23Cited by
12References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 18, 1981
Grant dateJun 12, 1984
Priority date
Expiry dateJun 18, 2001

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F11/2294
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A link (10) exchanges data between a master (MC) and slave (SC) computer. Each computer has control lines (26A, 42) and incompatible information lines (26B, 26C, CA1-15, CX1-21). The master computer (MC) includes a master interface (28) connected to the information and control lines (26) of the master computer (MC). The master interface (28) has separate intercommunication lines (LA/B) and intermediate (34) lines. This master interface (28) is able to provide an intermediate signal on its intermediate lines (34) in response to signals provided by the master computer (MC) on its control lines (26A). The link (10) includes a computing subsystem (30) and a slave interface (38). The computing subsystem (30) is connected to the intercommunication (LA/B) and intermediate (34) lines of the master interface (28). The computing subsystem (30) has command lines (36) for providing thereon a command signal in response to the intermediate signal. The slave interface (38) is connected to the intercommunication lines (LA/B) of the master interface (28), to the command lines (36) of the computing subsystem (30) and to the control lines (42) of the slave computer (SC). The slave interface (38) can …

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.