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. 20, 1990
Filed:
Jan. 27, 1988
Applicant:
Inventor:
James H Johnson, Lake In The Hills, IL (US);
Assignee:
Sun Electric Corporation, Crystal Lake, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ; G06F / ;
U.S. Cl.
CPC ...
36455101 ; 731172 ; 36442403 ;
Abstract
An IBM-compatible computer based engine analyzer includes a RAM memory in a ROM cartridge location. A data acquisition system operates substantially independently of the system microprocessor to acquire engine test signals, convert them to digital form and store them via a register in the RAM memory. The system microprocessor has access to the RAM memory via a buffer for reading and changing the data therein. Control logic regulates access to the RAM memory by the A/D converter and the system microprocessor by controlling operation of the register and the buffer.