# US 11,445,377 B2 · Communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,377 B2 - Document ID: US11445377B2 - Status: Granted - Kind: B2 - Application number: 16/497,440 - Filed: 2018-03-23 - Published: 2021-10-21 - Granted: 2022-09-13 - Earliest claimed: 2017-04-07 - Assignees: Noritz Corporation - Applicants: Noritz Corporation - Inventors: Masayuki Sugioka; Yoshihiko Maekawa; Tsuyoshi Yamashita; Masaru Ono - Web page: https://patentgrep.com/patent/US11445377B2 ## CPC - H04L 12/2809: {indicating that an appliance service is present in a home automation network (monitoring functionality H04L43/0817; discovery or management thereof, e.g. service location protocol [SLP] or web services, H04L67/51)} - H04W 12/71: Hardware identity - H04L 12/2803: {Home automation networks} - H04L 12/2829: {involving user profiles according to which the execution of a home appliance functionality is automatically triggered} - H04L 12/283: {Processing of data at an internetworking point of a home automation network} - H04M 11/00: Telephonic communication systems specially adapted for combination with other electrical systems - H04W 12/50: Secure pairing of devices - H04W 12/61: Time-dependent - H04W 12/73: Access point logical identity - H04L 2012/2841: {Wireless} - H04W 84/12: WLAN [Wireless Local Area Networks] - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract A communication system includes housing equipment, a relaying apparatus that communicates with the housing equipment, and a management device that communicates with the relaying apparatus via a communication network. The management device is configured to store user identification information sent from a communication terminal that communicates with the management device via the communication network, and association information associated with identification information of the relaying apparatus sent from the relaying apparatus, and permit first communication via the management device between the communication terminal and the relaying apparatus that have been associated with each other in the association information. After the first communication is permitted, if no communication is performed from the relaying apparatus or the communication terminal to the management device during a predetermined first period, the management device is configured to prohibit the first communication in and after the first period. ## Claims ### Claim 1 A communication system comprising: housing equipment; a relaying apparatus that communicates with the housing equipment; and a management device that is connected to a communication network and communicates with the relaying apparatus via the communication network and a wireless LAN router connected to the communication network, wherein the management device associates identification information of the relaying apparatus and identification information of the wireless LAN router with user identification information of a communication terminal that communicates with the management device via the communication network in predetermined processing, the management device stores these pieces of information as association information, the management device includes a control configuration that permits the stored association information to be used, while the association information is permitted to be used, when the identification information of the relaying apparatus and the identification information of the wireless LAN router are sent from the relaying apparatus to the management device, the management device determines whether the identification information of the wireless LAN router sent to the management device after the storage matches the identification information of the wireless LAN router associated with the identification information of the relaying apparatus by comparing the identification information of the wireless LAN router received by the management device with the stored association information, in a case where the identification information of the wireless LAN router received by the management device does not match the stored association information, the management device is configured to disable the association information, and upon receiving request information related to the housing equipment together with the user identification information from the communication terminal, the management device is configured to perform processing corresponding to the request information, only when the association information including the received user identification information is valid. ### Claim 2 (depends on 1) The communication system according to claim 1, wherein when the request information received from the communication terminal is remote control information for remotely controlling the housing equipment, and the association information is valid, the management device is configured to send the remote control information to the relaying apparatus as processing corresponding to the request information, and the relaying apparatus is configured to send the received remote control information to the housing equipment. ### Claim 3 (depends on 1) The communication system according to claim 1, wherein the relaying apparatus is configured to receive equipment state information that indicates a state of the housing equipment from the housing equipment, and send the received equipment state information to the management device, the management device is configured to store the received equipment state information, and when the request information received from the communication terminal is equipment state request information for requesting information on the state of the housing equipment, and the association information is valid, the management device is configured to send the equipment state information to the communication terminal as processing corresponding to the request information. ### Claim 4 (depends on 1) The communication system according to claim 1, wherein the management device is configured to send, at a time of disabling the association information, information on the disabling of the association information to the communication terminal.