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. 28, 2010
Filed:
Oct. 25, 2005
Georg Zehentner, Teisendorf, DE;
Georg Zehentner, Teisendorf, DE;
Dr. Johannes Heidenhain GmbH, Traunreut, DE;
Abstract
A modular, numerical control having low-jitter synchronization includes a main computer and at least one controller unit which, starting from the main computer, are interconnected by serial data-transmission channels in the form of a series circuit. The at least one controller unit includes a first receiver unit for receiving a serial data stream arriving from the direction of the main computer, and a first transmitter unit for outputting a serial data stream. Also provided in the at least one controller unit is a clock recovery unit which derives a synchronous clock signal from the serial data stream arriving at the first receiver unit, and supplies it to the first transmitter unit which uses it as a transmission clock signal, so that the serial data stream arriving at the first receiver unit and the serial data stream output by the first transmitter unit are coupled to each other in phase-locked manner.