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:
Sep. 29, 2020
Filed:
Aug. 30, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Makoto Umehara, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A communication apparatus, method of communication, and storage medium storing a computer program are provided. The communication apparatus selects, based on a first signal received from another apparatus that belongs to a BSS (Basic Service Set) complying with IEEE802.11 standard, a first or second mode. In the first mode, a first NAV (Network Allocation Vector) and a second NAV are maintained. In the second mode, one NAV is maintained. The first and second NAVs are updated based on signals received from another apparatus that does belongs to a first BSS, or does not belong to the first BSS, respectively. If the first mode is selected and the first NAV is not zero, the second NAV is zero, and a Trigger Frame (TF) complying with IEEE802.11ax standard is received, the communication apparatus responds to the TF. If the second NAV is not zero, the communication apparatus does not response to the TF.