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. 01, 1977
Filed:
Jun. 30, 1976
Robert William Callahan, Endwell, NY (US);
Paul Eugene Kauffman, Endwell, NY (US);
Lawrence Joseph Kobesky, Endicott, NY (US);
Howard Loomis Page, Apalachin, NY (US);
IBM Corporation, Armonk, NY (US);
Abstract
In a data processing system having a plurality of channels that are organized for separately processing the operations of specific I/O devices and the operations that are background to these specific operations, apparatus for transferring the background processing from one channel to another channel to distribute the background processing load. A system of registers and lines connect these registers to the channels for controlling these operations. Each channel processor has a request register for use in designating that background processing has been completed and that processing of a device oriented portion of a channel program is to begin, and a completion register set by an associated I/O processor for use in signifying that processing of a device oriented portion of a channel program has been completed and that background processing is to begin.