# US 12,113,900 B2 · Communication apparatus and control method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,900 B2 - Document ID: US12113900B2 - Status: Granted - Kind: B2 - Application number: 17/950,255 - Filed: 2022-09-22 - Published: 2023-04-13 - Granted: 2024-10-08 - Earliest claimed: 2021-10-12 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Akihiko Ishizu - Web page: https://patentgrep.com/patent/US12113900B2 ## CPC - H04L 9/32: including means for verifying the identity or authority of a user of the system {or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials} - H04W 12/06: Authentication - H04L 9/0891: {Revocation or update of secret information, e.g. encryption key update or rekeying} - H04L 9/3226: {using a predetermined code, e.g. password, passphrase or PIN (network architectures or network communication protocols for supporting authentication of entities using passwords in a packet data network H04L63/083)} - H04L 63/045: {wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption (cryptographic mechanisms or cryptographic arrangements using a plurality of keys or algorithms H04L9/14)} - H04L 63/083: {using passwords (cryptographic mechanisms or cryptographic arrangements for entity authentication using a predetermined code H04L9/3226)} - H04L 63/0869: {for achieving mutual authentication (cryptographic mechanisms or cryptographic arrangements for mutual authentication H04L9/3273)} - H04L 2209/08: Randomization, e.g. dummy operations or using noise - 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) ## Abstract A communication apparatus communicates with an electronic apparatus, accepts input of connection information including first information, which is identification information of a first network to be used for wireless communication with an external apparatus, and second information, which is security information for connecting to the first network, and transmits the connection information to the electronic apparatus. The communication apparatus, when acceptance of the connection information starts, displays a first display region for accepting input of the first information and displays the first information acquired from the electronic apparatus in the first display region, and when acceptance of the connection information starts, displays a second display region for accepting input of the second information and displays dummy information in the second display region without acquiring the second information. ## Claims ### Claim 1 A communication apparatus comprising: a communication unit configured to communicate with an electronic apparatus; an accepting unit configured to accept input of connection information including first information, which is identification information of a first network to be used for wireless communication with an external apparatus, and second information, which is security information for connecting to the first network; and a control unit configured to transmit the connection information to the electronic apparatus via the communication unit, wherein, when acceptance of the connection information by the accepting unit starts, the control unit displays on a display unit a first display region for accepting input of the first information and displays the first information acquired from the electronic apparatus in the first display region, and when acceptance of the connection information by the accepting unit starts, the control unit also displays on a display unit a second display region for accepting input of the second information and displays dummy information in the second display region without acquiring the second information. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein when the dummy information displayed by the display unit is changed, the control unit transmits, to the electronic apparatus, a request for updating the second information already set for the electronic apparatus with the changed information; when the dummy information displayed by the display unit is not changed, the control unit transmits, to the electronic apparatus, connection information obtained by converting the dummy information into third information; and the third information is information for notifying the communication apparatus that the second information already set for the electronic apparatus is not updated. ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein when a user operation relating to the dummy information displayed by the display unit is detected, the control unit deletes the dummy information and allows new information to be entered. ### Claim 4 (depends on 3) The apparatus according to claim 3, wherein the control unit displays the new information in an appearance similar to that of the dummy information. ### Claim 5 (depends on 3) The apparatus according to claim 3, wherein the control unit displays the new information in an appearance different from that of the dummy information. ### Claim 6 (depends on 1) The apparatus according to claim 1, wherein the control unit displays, of the connection information acquired from the electronic apparatus, connection information not set for the electronic apparatus as a blank field on the display unit. ### Claim 7 (depends on 6) The apparatus according to claim 6, wherein when connection information is entered in the blank field, the control unit transmits, to the electronic apparatus, a request to set the entered connection information to the electronic apparatus. ### Claim 8 (depends on 1) The apparatus according to claim 1, wherein the communication unit is configured to connect to a second network formed by the electronic apparatus. ### Claim 9 (depends on 1) The apparatus according to claim 1, wherein the dummy information is information including a character or symbol that makes the content of the second information unrecognizable. ### Claim 10 (depends on 1) The apparatus according to claim 1, wherein when a notification indicating that the first network cannot be detected is received from the electronic apparatus, the control unit displays that the electronic apparatus cannot detect the first network or that the connection information of the first network needs to be updated on the display unit. ### Claim 11 (depends on 1) The apparatus according to claim 1, wherein when a notification indicating that authentication for connecting to the first network failed is received from the electronic apparatus, the control unit displays that authentication for connecting to the first network failed or that the connection information of the first network needs to be updated on the display unit. ### Claim 12 (depends on 1) The apparatus according to claim 1, wherein the control unit acquires, from the electronic apparatus, the number of characters of the second information that is already set for the electronic apparatus but not acquired from the electronic apparatus; and the second information that is already set for the electronic apparatus but is not acquired from the electronic apparatus is displayed on the display unit with the dummy information and the number of characters. ### Claim 13 (depends on 1) The apparatus according to claim 1, wherein the first network is a network to be used for wireless communication with the external apparatus via a wireless LAN access point; the connection information includes an ID and a password for the access point and an ID and a password for the external apparatus to connect to the electronic apparatus via the access point; and in the connection information acquired from the electronic apparatus, the password has been converted into fourth information, and the fourth information is information for notifying the communication apparatus that the fourth information is already set for the electronic apparatus but has not been transmitted by the electronic apparatus. ### Claim 14 (depends on 1) The apparatus according to claim 1, wherein the first display region and the second display region are displayed on the same screen or simultaneously displayed on the same screen. ### Claim 15 (depends on 1) The apparatus according to claim 1, wherein the control unit sends a request for the connection information to the electronic apparatus in response to acceptance of the connection information starting. ### Claim 16 A method of controlling a communication apparatus comprising: wherein the communication apparatus includes a communication unit configured to communicate with an electronic apparatus, an accepting unit configured to accept input of connection information including first information, which is identification information of a first network to be used for wireless communication with an external apparatus, and second information, which is security information for connecting to the first network, and a control unit configured to transmit the connection information to the electronic apparatus via the communication unit, wherein the method includes: when acceptance of the connection information by the accepting unit starts, displaying a first display region for accepting input of the first information and displaying the first information acquired from the electronic apparatus in the first display region; and when acceptance of the connection information by the accepting unit starts, displaying a second display region for accepting input of the second information and displaying dummy information in the second display region without acquiring the second information. ### Claim 17 A non-transitory computer-readable storage medium storing a program for causing a processor to function as a communication apparatus comprising: a communication unit configured to communicate with an electronic apparatus; an accepting unit configured to accept input of connection information including first information, which is identification information of a first network to be used for wireless communication with an external apparatus, and second information, which is security information for connecting to the first network; and a control unit configured to transmit the connection information to the electronic apparatus via the communication unit, wherein, when acceptance of the connection information by the accepting unit starts, the control unit displays a first display region for accepting input of the first information and displays the first information acquired from the electronic apparatus in the first display region, and when acceptance of the connection information by the accepting unit starts, the control unit also displays a second display region for accepting input of the second information and displays dummy information in the second display region without acquiring the second information.