The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 1987
Filed:
Jul. 16, 1985
Frank C Bomba, Andover, MA (US);
Stephen R Jenkins, Acton, MA (US);
Digital Equipment Corporation, Maynard, MA (US);
Abstract
When a device on a computer communications bus receives a request to enter into a transaction and is not yet ready to perform the transaction, it sends a retry signal to the requesting device to indicate to it that it should terminate the transaction that it has initiated. If the responding device may later be ready to engage in the transaction if the transaction is initiated again some time in the future, the signal is a retry signal and differs from the signal that the requesting device would receive if the transaction were to be terminated for some other reason. As a result, the master device can be arranged to re-initiate only those transactions for which there is a likelihood that they can be carried out to completion when they are attempted again.