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. 01, 2026
Filed:
Apr. 10, 2024
Panasonic Holdings Corporation, Osaka, JP;
Noriaki Imaoka, Osaka, JP;
Miyuki Kitabatake, Kanagawa, JP;
Kota Nakahira, Osaka, JP;
Takeshi Ando, Kyoto, JP;
Masaki Yamamoto, Nara, JP;
Kenji Suzuki, Ibaraki, JP;
PANASONIC HOLDINGS CORPORATION, Osaka, JP;
Abstract
A two-way communication device system includes: a first two-way communication device; and a second two-way communication device installed at a different location from the first two-way communication device and configured to communicate with the first two-way communication device The two-way communication device system creates an operator input operation history when an input operation is received for the first time, transmits an input signal to the second two-way communication device, creates an other-device input operation history when an input signal is received for the first time, maintains a first state when both the operator input operation history and the other-device input operation history do not exist, a second state when only one of the operator input operation history and the other-device input operation history exists, and a third state when both of the operator input operation history and the other-device input operation history exist, and deletes both the operator input operation history and the other-device input operation history at a specific cycle date and time.