Image display apparatus, mobile terminal, and image system including the same

Patent metadata

Field	Value
Publication number	US-12506727-B2
Application number	US-202318527001-A
Country	US
Kind code	B2
Filing date	Dec 1, 2023
Priority date	May 4, 2023
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

The present disclosure relates to an image display apparatus, a mobile terminal, and an image system including the same. An image display apparatus according to one embodiment of the present disclosure includes: a display; a signal processing device configured to output an image signal to the display; and an interface configured to exchange data with a mobile terminal or a server, in which the interface receives a connection request and a network address of the mobile terminal from the mobile terminal, and the signal processing device is configured to generate a certificate and a security key based on the network address of the mobile terminal, and transmit the generated certificate and security key to the mobile terminal. Therefore, the certificate may be dynamically generated.

First claim

What is claimed is:

1 . An image display apparatus comprising
a display; a signal processing device configured to output an image signal to the display; and an interface configured to exchange data with a mobile terminal or a server, wherein the interface receives a connection request and a network address of the mobile terminal from the mobile terminal, and the signal processing device is configured to generate a certificate and a security key based on the network address of the mobile terminal, and transmit the generated certificate and security key to the mobile terminal.

2 . The image display apparatus of claim 1 , wherein after transmitting the generated certificate and security key, the interface receives, a server address of a server executed by the mobile terminal, accesses the server of the mobile terminal based on the server address, and receives a content from the mobile terminal.

3 . The image display apparatus of claim 2 , wherein the signal processing device is configured to display the content on the display after receiving the content from the mobile terminal.

4 . The image display apparatus of claim 2 , wherein the signal processing device is configured to display content reception information after receiving the content from the mobile terminal.

5 . The image display apparatus of claim 2 , wherein the server executed by the mobile terminal includes a hypertext transfer protocol secure server.

6 . The image display apparatus of claim 1 , wherein the signal processing device generates the certificate including a plurality of network addresses including the network address of the mobile terminal.

7 . The image display apparatus of claim 6 , wherein in response to the signal processing device receiving a second network address included in the plurality of network addresses from the mobile terminal after transmitting the generated certificate and security key to the mobile terminal, the signal processing device is configured to transmit the pre-generated certificate and security key to the mobile terminal.

8 . The image display apparatus of claim 6 , wherein in case in which the signal processing device transmits the generated certificate and security key to the mobile terminal, receives the server address of the server executed by the mobile terminal, and then receives the second network address included in the plurality of network addresses from the mobile terminal, the signal processing device is configured to access the server of the mobile terminal based on the server address of the server without additional transmission of the certificate and the security key to the mobile terminal, and receive the content from the mobile terminal.

9 . The image display apparatus of claim 6 , wherein in case in which the signal processing device transmits the generated certificate and security key to the mobile terminal, and then receives a second network address not included in the plurality of network addresses from the mobile terminal, the signal processing device is configured to generate a second certificate and a second security key based on the second network address of the mobile terminal, and transmit the generated second certificate and second security key to the mobile terminal.

10 . The image display apparatus of claim 9 , wherein after transmitting the generated second certificate and security key, the interface receives a second server address of a second server executed by the mobile terminal, accesses the server of the mobile terminal based on the second server address, and receives a second content from the mobile terminal.

11 . The image display apparatus of claim 6 , wherein in case in which the signal processing device transmits the generated certificate and security key to the mobile terminal, and then receives a second connection request and a second network address from a second mobile terminal, the signal processing device is configured to generate the second certificate and the second security key based on the second network address of the second mobile terminal, and transmit the generated second certificate and second security key to the second mobile terminal.

12 . The image display apparatus of claim 11 , wherein the interface receives, after transmitting the generated second certificate and second security key, a second server address of a second server executed by the second mobile terminal, accesses the server of the second mobile terminal based on the second server address, and receives a second content from the second mobile terminal.

13 . A mobile terminal comprising:
a display; a controller configured to output an image signal to the display; and a wireless transceiver configured to exchange data with an image display apparatus, wherein in response to a sharing item of a content displayed on the display being selected or in response to a sharing application being executed, the controller is configured to transmit a connection request and a network address to the image display apparatus, receive a certificate and a security key received from the image display apparatus, and execute a server for sharing the content.

14 . The mobile terminal of claim 13 , wherein the controller is configured to transmit the server address to the image display apparatus after executing the server, and transmit the content to the image display apparatus based on the server access in the image display apparatus.

15 . The mobile terminal of claim 13 , wherein in response to a sharing item of a second content displayed on the display being selected or in response to the sharing application being executed after executing the server, the controller is configured to transmit a second connection request and a second network address to the image display apparatus, receive a second certificate and a second security key received from the image display apparatus, and execute a second server for sharing the second content.

16 . The mobile terminal of claim 13 , wherein in response to the sharing item of the second content displayed on the display being selected or in response to the sharing application being executed after executing the server, the controller is configured to transmit the second connection request and the second network address to the image display apparatus, and
wherein the controller is configured to execute the second server for sharing the second content again in response to the certificate and the security key being received from the image display apparatus again or the certificate and the security key being not received for a predetermined time.

17 . The mobile terminal of claim 13 , wherein the server includes a hypertext transfer protocol secure server.

18 . An image system comprising:
an image display apparatus; and a mobile terminal, wherein the image display apparatus comprises: a display; a signal processing device configured to output an image signal to the display; and an interface configured to exchange data with a mobile terminal or a server, wherein the interface receives a connection request and a network address of the mobile terminal from the mobile terminal, and the signal processing device is configured to generate a certificate and a security key based on the network address of the mobile terminal, and transmit the generated certificate and security key to the mobile terminal.

19 . The image system of claim 18 , wherein in response to a sharing item of a content displayed on a display of the mobile terminal being selected or in response to a shari

Assignees

• Lg Electronics Inc

Inventors

• Shin Byounghyun
• Lee Eunjung
• Bae Kyungnam

Classifications

• H04L63/061 Primary

  for key exchange, e.g. in peer-to-peer networks (cryptographic mechanisms or cryptographic arrangements for key agreement H04L9/0838) · CPC title

• G06F3/14

  Digital output to display device {; Cooperation and interconnection of the display device with other functional units} · CPC title

• H04L9/0863

  involving passwords or one-time passwords (network architectures or network communication protocols for using one-time keys in a packet data network H04L63/067) · CPC title

• H04W12/069

  using certificates or pre-shared keys · CPC title

• H04W12/50

  Secure pairing of devices · CPC title