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:
Oct. 28, 2014
Filed:
Dec. 21, 2011
Kazuyuki Sakoda, Tokyo, JP;
Kenzo Nishikawa, Kanagawa, JP;
Yuichi Morioka, Tokyo, JP;
Mitsuhiro Suzuki, Chiba, JP;
Kazuyuki Sakoda, Tokyo, JP;
Kenzo Nishikawa, Kanagawa, JP;
Yuichi Morioka, Tokyo, JP;
Mitsuhiro Suzuki, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention eliminates a transmission-waiting operation which is unnecessary while accommodating a prioritized traffic. Although a communication station enters a transmission-disallowed state in response to detection of a signal addressed to another station in accordance with medium access control based on CSMA, if the communication station receives a frame transmitted with priority to a local station during the transmission waiting, it cancels the transmission-disallowed state, sends back a frame responding the frame transmitted with priority and effectively operates a transmission prioritized period. The communication station starts a search procedure to perform a processing of evading duplication of the transmission prioritized periods if it judges a possibility of a problem occurring in a time zone in which reception with priority is possible.