US 12,113,804 B2
Method for authorized use of projector
Biqiong Zhang, Guangdong (CN)
Assigned to APPOTRONICS CORPORATION LIMITED, Guangdong (CN)
Appl. No. 17/310,888
Filed by APPOTRONICS CORPORATION LIMITED, Guangdong (CN)
PCT Filed Feb. 26, 2020, PCT No. PCT/CN2020/076724
§ 371(c)(1), (2) Date Aug. 27, 2021,
PCT Pub. No. WO2020/173455, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 201910143892.3 (CN), filed on Feb. 27, 2019.
Prior Publication US 2022/0150261 A1, May 12, 2022
Int. Cl. H04L 9/40 (2022.01); G06K 7/14 (2006.01); G06K 19/06 (2006.01)
CPC H04L 63/123 (2013.01) [G06K 7/1417 (2013.01); G06K 19/06037 (2013.01); H04L 63/0442 (2013.01); H04L 63/045 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for authorized use of a projector, the method comprising:
obtaining a license comprising authorization information stored on the projector;
encoding the license into a quick response (QR) code and displaying the QR code by means of projection, wherein the QR code is scanned and identified by a mobile terminal, the mobile terminal is configured to identify the QR code to obtain the license, transmit the license and a local terminal identifier of the mobile terminal to a projector authorization server, and receive verification information generated by the projector authorization server in response to verification by the projector authorization server on the license and the local terminal identifier being successful; and
receiving the verification information, performing local verification on the verification information, and obtaining use authorization corresponding to the authorization information in response to the local verification being successful.