US 11,856,089 B2
Communication device
Satoshi Suzuki, Nagoya (JP)
Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed by Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed on Jun. 11, 2021, as Appl. No. 17/345,558.
Application 17/345,558 is a continuation of application No. 16/360,318, filed on Mar. 21, 2019, granted, now 11,064,362.
Claims priority of application No. 2018-068818 (JP), filed on Mar. 30, 2018.
Prior Publication US 2021/0306860 A1, Sep. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/08 (2006.01); H04W 12/63 (2021.01); H04W 12/062 (2021.01); H04W 12/0431 (2021.01)
CPC H04L 9/0825 (2013.01) [H04W 12/0431 (2021.01); H04W 12/062 (2021.01); H04W 12/63 (2021.01)] 21 Claims
OG exemplary drawing
 
1. A communication device comprising:
a first wireless interface;
a second wireless interface different from the first wireless interface;
a processor; and
a memory storing computer-readable instructions therein, the computer-readable instructions, when executed by the processor, causing the communication device to:
send a public key externally via the first wireless interface;
receive a specific signal from a first external device via the first wireless interface;
after the public key has been sent externally, receive an authentication request in which the public key is used from the first external device via the second wireless interface;
in a case where a distance between the communication device and the first external device is equal to or less than a predetermined distance and the authentication request is received from the first external device, send an authentication response to the first external device via the second wireless interface,
wherein in a case where the distance between the communication device and the first external device is greater than the predetermined distance and the authentication request is received from the first external device, sending of the authentication response to the first external device is restricted;
after the authentication response has been sent to the first external device, receive connection information from the first external device via the second wireless interface, the connection information being for establishing a wireless connection between the communication device and a second external device via the second wireless interface; and
in a case where the connection information is received from the first external device, establish, by using the connection information, the wireless connection between the communication device and the second external device via the second wireless interface.