Display device and operation method of same

Patent metadata

Field	Value
Publication number	US-12184749-B2
Application number	US-202118558477-A
Country	US
Kind code	B2
Filing date	Jun 1, 2021
Priority date	Jun 1, 2021
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A display device according to an embodiment of the present disclosure may comprise: a display unit; a wireless communication unit configured to communicate wirelessly with a mobile terminal; an external device interface unit configured to provide a wired connection with the router to wirelessly receive User Datagram Protocol (UDP) packet from the mobile terminal; and a control unit configured to: change the wired connection with the router to a wireless connection when a missing state of the UDP packet is detected based on the UDP packet received from the router, and receive the UDP packet from the router through the wireless communication unit.

First claim

What is claimed is:

1. A display device connected to a router by wire, comprising:
a display unit;
a wireless communication unit configured to communicate wirelessly with a mobile terminal;
an external device interface unit configured to provide a wired connection with the router to wirelessly receive User Datagram Protocol (UDP) packet from the mobile terminal; and
a control unit configured to:
change the wired connection with the router to a wireless connection when a missing state of the UDP packet is detected based on the UDP packet received from the router,
detect a missing of the UDP packet based on a sequence number included in the UDP packet,
display, on the display unit, an IP address indicating that the wireless connection has been established between the display device and the router, and
receive the UDP packet from the router through the wireless communication unit.

2. The display device of claim 1 , wherein the control unit is further configured to display, on the display unit, a message indicating that a wireless connection has been established between the display device and the router.

3. The display device of claim 1 , wherein the control unit is further configured to: obtain the sequence number of each UDP packet received sequentially, and if the obtained sequence number does not increase sequentially, determine that a missing state of the UDP packet is detected.

4. The display device of claim 1 , wherein the UDP packet includes image data or audio data for mirroring with the mobile terminal, wherein the control unit is further configured to rechange the wireless connection between the display device and the router to the wired connection when the mirroring is terminated.

5. The display device of claim 1 , wherein the control unit is further configured to:
request wireless connection information of the router from the mobile terminal through the wireless communication unit, receive the wireless connection information from the mobile terminal, and perform the wireless connection with the router based on the received wireless connection information.

6. The display device of claim 5 , wherein the wireless connection information includes a service set identifier and a password.

7. A method of operating a display device connected by wire to a router that wirelessly receives UDP packet from a mobile terminal,
receiving the UDP packet from the router; detecting a missing state of the UDP packet based on the received UDP packet;
changing a wired connection with the router to a wireless connection when the missing state of the UDP packet is detected;
detecting a missing of the UDP packet based on a sequence number included in the UDP packet;
displaying, by the display device, an IP address indicating that the wireless connection has been established between the display device and the router; and
receiving the UDP packet from the router, through a wireless communication unit.

8. The method of claim 7 , further comprising:
displaying a message, on a display unit, indicating that a wireless connection has been established between the display device and the router.

9. The method of claim 8 , wherein the detecting step comprises:
obtaining the sequence number of each UDP packet received sequentially, and if the obtained sequence number does not increase sequentially, determining that a missing state of the UDP packet is detected.

10. The method of claim 7 , wherein the UDP packet includes image data or audio data for mirroring with the mobile terminal,
wherein the method further comprises:
rechanging the wireless connection between the display device and the router to the wired connection when the mirroring is terminated.

11. The method of claim 7 , further comprising:
requesting wireless connection information of the router from the mobile terminal through the wireless communication unit,
wherein the rechanging step comprises:
receiving the wireless connection information from the mobile terminal, and
performing the wireless connection with the router based on the received wireless connection information.

Assignees

• Lg Electronics Inc

Inventors

• Bae Kyungnam
• Lee Eunjung
• Jeong Hyojeong
• Shin Byounghyun
• Kwon Jeonghwan

Classifications

• H04N21/6375 Primary

  for requesting retransmission {, e.g. of data packets lost or corrupted during transmission from server}(ARQ protocols H04L1/18; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16) · CPC title

• H04N21/4363

  Adapting the video stream to a specific local network, e.g. a Bluetooth® network · CPC title

• H04L9/3231

  Biological data, e.g. fingerprint, voice or retina (network architectures or network communication protocols for supporting authentication of entities using biometrical features in a packet data network H04L63/0861) · CPC title

• H04L69/40

  for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection (management of faults, events, alarms or notifications in data switching networks H04L41/06) · CPC title

• H04L69/164 Primary

  Adaptation or special uses of UDP protocol · CPC title