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:
Dec. 28, 1993
Filed:
Aug. 28, 1992
Applicant:
Inventor:
Guy Vachon, Austin, TX (US);
Assignee:
Schlumberger Technology Corporation, Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395500 ; 3642402 ; 3642403 ; 3642328 ; 36424231 ; 364D / ;
Abstract
A bus interfacing device suitable for use in computerized data acquisition systems for interfacing a main processor bus to an auxiliary peripheral bus. The operation of peripherals connected to the auxiliary peripheral bus can be controlled by either the main processor or the bus interfacing device. The device also allows data gathered from peripherals on the auxiliary bus to be stored in a dual-ported RAM for transfer in DMA-type fashion over the main processor bus.