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. 04, 1992
Filed:
Dec. 27, 1990
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A bi-axial synchronous driving apparatus which includes: a set of motors for respectively driving two axes; rotation detecting devices for detecting rotational positions of the respective motors; a set of deviation counters to which a common position instruction signal and detection signals of the respective rotation detecting devices are applied; a correcting unit to which deviation signals outputted from the respective deviation counters are applied, so as to form correction signals with respect to the respective deviation signals based on an integration of a difference between each one of the deviation signals and the other corresponding deviation signal; a set of adding devices for adding the deviation signals outputted from the respective deviation counters to the correction signals; and a set of driving devices for driving the respective motors based on control signals outputted from said respective adding devices.