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:
Feb. 21, 1978
Filed:
Dec. 30, 1976
Jaime Calle, Glendale, AZ (US);
Lawrence W Chelberg, Phoenix, AZ (US);
Honeywell Information Systems Inc., Waltham, MA (US);
Abstract
A local memory of an input/output system includes a cache store and a backing store. The system includes a plurality of command modules. The cache store provides fast access to blocks of information previously fetched from the backing store in response to memory commands generated by any one of a plurality of command modules during both data transfer and data processing operations. Each memory command applied to the memory unit incudes a predetermined bit which is coded to designate when the information requested from the local memory unit is to be written into the cache store. The local memory unit includes aparatus operative in response to each memory command to enable the command module to bypass selectively the cache store in accordance with the coding of the predetermined bit thereby enabling the command modules to execute operations more expeditiously during the performance of input/output data transfer operations.