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:
Apr. 01, 2025
Filed:
Mar. 21, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Ryohei Yamada, Kanagawa, JP;
Toshio Negishi, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A printing element board includes a plurality of memory modules each including a memory element and a driving circuit, a plurality of discharge modules, a control data supply unit configured to select one of a memory module and a discharge module from the plurality of memory modules and the plurality of discharge modules and perform drive control, and a logical product calculation unit configured to, when the memory module is selected, receive a first signal and a second signal output at the same timing, and supply a signal indicating a logical product of the first and second signals to the control data supply unit. When the signal indicating the logical product of the first and second signals is not supplied from the calculation unit, the supply unit does not perform drive control of the memory module.