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:
Dec. 22, 2020
Filed:
Sep. 05, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Kohei Murayama, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A bus control circuit comprises an arbitration circuit which receives a bus-transfer request from each of a plurality of bus masters and outputs an arbitration result signal, in accordance with a priority order, to one of the bus masters, and a plurality of bus switches, wherein each bus switch comprises a selection circuit which includes a plurality of input terminals for receiving a plurality of bus transfer signals and an output terminal for transmitting one bus transfer signal to a downstream side, and a control circuit which receives the arbitration result signal from the arbitration circuit and controls the selection circuit based on the arbitration result signal to select one of the plurality of input terminals, and a slave module is connected to the output terminal of the selection circuit in the bus switch located at a most downstream position.