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:
May. 19, 2026
Filed:
Jul. 12, 2023
Akitoshi Mochida, Osaka, JP;
Akitoshi Mochida, Osaka, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A control system includes a movable device, memory, and circuitry. The movable device includes a reflector; paired movable portion; and a detector to detect deflection angle of the reflector. The circuitry outputs drive signals to the paired movable portions, respectively; generates the drive signals based on variables of a symmetry of each of the drive signals and a phase difference between the drive signals; detects, from the movable device, the deflection angle of the reflector by the detector; extract an amplitude of a high-frequency component from a detection signal; store, in the memory, information in which the amplitude of the high-frequency component is associated with values of the variables of the drive signals; select a combination of the values of the variables based on the high-frequency component and the information stored in the memory; and update the drive signals based on the combination of the values of the variables selected.