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. 09, 2026
Filed:
Dec. 15, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Ichiro Iijima, Kanagawa, JP;
Hirotaka Ittogi, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a data carrier apparatus, a first determination unit determines a duty ratio of each pulse of a pulse signal received from a data carrier driving apparatus, and a second determination unit determines a frequency of each pulse of the received pulse signal. A calibration unit performs calibration of a reference value to be used for determination performed by the second determination unit, during a calibration period. A demodulation unit demodulates data conveyed by the received pulse signal. The demodulation unit performs first demodulation based on a determination result of the first determination unit during the calibration period, and it starts second demodulation based on the determination result of the first determination unit and a determination result of the second determination unit when the calibration period ends.