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. 12, 2023
Filed:
Feb. 28, 2022
Aiphone Co., Ltd., Nagoya, JP;
Yuta Shimomura, Nagoya, JP;
Masashi Hattori, Nagoya, JP;
Kimiaki Fujishima, Nagoya, JP;
Ryoji Uno, Nagoya, JP;
AiPhone Co., Ltd, Nagoya, JP;
Abstract
A multiple dwelling house interphone system includes a collective entrance machine and dwelling room master devices. When a calling operation section is operated and a dwelling unit number of a calling destination is input, a master device speech control section of the dwelling room master device of the dwelling unit including a plurality of dwelling room master devices performs a calling control of transmitting a call signal to the dwelling room master device of the calling destination having its master device ID, and subsequently forming a speech path when a response operation of the dwelling room master device of the calling destination is performed. The calling and speaking to the other dwelling unit are allowed even in a state where another dwelling room master device of the dwelling unit itself has formed a speech path with the dwelling room master device of the other dwelling unit.