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:
Sep. 05, 1978
Filed:
May. 05, 1975
Charles L Winkler, Worthington, PA (US);
Kenneth M Eichler, McKeesport, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
An elevator system with an asynchronous-synchronous interface between the system processor and each car controller. Each interface includes a serially accessed memory which intermittently receives command words from the system processor. The serially accessed memory repetitively reads out the commands to the car controller, and updates the commands in response to a new data word without interrupting the flow of data to the car controller. Each interface utilizes internal logic and timing for controlling its serially accessed memory, thus relaxing the memory capacity and processing speed requirements of the system processor.