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. 27, 2022
Filed:
Jul. 31, 2017
Nec Corporation, Tokyo, JP;
Satoshi Kyosuna, Tokyo, JP;
Yoichiro Mizuno, Tokyo, JP;
Koya Takata, Tokyo, JP;
Fujio Okumura, Kanagawa, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
This communication device has a phase-modulation spatial light modulator; and a control unit which causes, during one frame time interval, the phase-modulation spatial light modulator to operate with first and second operation patterns. In a predetermined period within the one frame time interval, the first operation pattern includes a first light transmittable interval during which first signal light can be output, and a first pause interval during which the first signal light cannot be output whereas the second operation pattern includes a second light transmittable interval during which second signal light can be output, and a second pause interval during which the second signal light cannot be output. The first and second light transmittable intervals are each longer than a half of the predetermined period. The second pause interval is present within the first light transmittable interval, and the first pause interval is present within the second light transmittable interval.