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:
Jun. 14, 1988
Filed:
Mar. 30, 1987
Masahiro Tohara, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A pen recorder includes a pen position detecting portion for periodically or nonperiodically detecting the position of a pen, and a position correcting circuit for calculating a driving amount and a driving direction of a motor used for correcting a pen position, in accordance with a pen position detected by the pen position detecting portion and a recording position of the pen corresponding to an input signal. The pen position detecting portion detects an actual position of the pen when the pen is moved to perform a recording operation in response to the input signal. In accordance with the actual pen position and the recording position of the pen corresponding to the input signal, a driving amount and a driving direction of the motor for moving the pen are calculated by the position correcting circuit, to thereby correct the pen position.