SIGNAL TRANSMISSION SYSTEMS OF ELECTRONIC DISPLAY DEVICES AND TRANSMISSION METHODS
First Claim
1. A signal transmission system of an electronic display device, comprising:
- a plurality of electronic display devices; and
a wireless signal transmission device, configured to transmit a first packet data to the plurality of electronic display devices by broadcast, wherein the first packet data comprises an access control address list and the access control address list records an media access control address of a first group of electronic display devices of the plurality of electronic display devices; and
when the wireless signal transmission device receives an ACK message from at least one first electronic display device of the first group of electronic display devices, the wireless signal transmission device changes the method of transmission from broadcast to unicast for transmitting a second packet data to the first electronic display device,wherein the second packet data comprises a video packet data, and when the access control address of the first group of electronic display devices is in the access control address list, the ACK message is transmitted to the wireless signal transmission device.
1 Assignment
0 Petitions
Accused Products
Abstract
A signal transmission system of electronic display devices includes a plurality of electronic display devices and a wireless signal transmission device. The wireless signal transmission device broadcasts a first packet data to the electronic display device. The first packet data comprises an access control address list, and the access control address list comprises the MAC address of a first group of electronic display device. When the wireless signal transmission device receives an acknowledgement (ACK) message from at least a first electronic display device of the first group of electronic display devices, the wireless signal transmission device changes the method of transmission from broadcast to unicast in order to transmit second packet data to the first electronic display device, wherein the second packet data comprises video packet data.
-
Citations
20 Claims
-
1. A signal transmission system of an electronic display device, comprising:
-
a plurality of electronic display devices; and a wireless signal transmission device, configured to transmit a first packet data to the plurality of electronic display devices by broadcast, wherein the first packet data comprises an access control address list and the access control address list records an media access control address of a first group of electronic display devices of the plurality of electronic display devices; and
when the wireless signal transmission device receives an ACK message from at least one first electronic display device of the first group of electronic display devices, the wireless signal transmission device changes the method of transmission from broadcast to unicast for transmitting a second packet data to the first electronic display device,wherein the second packet data comprises a video packet data, and when the access control address of the first group of electronic display devices is in the access control address list, the ACK message is transmitted to the wireless signal transmission device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A transmission method, comprises:
-
transmitting a first packet data to the plurality of electronic display devices in the way of broadcast by a wireless signal transmission device, wherein the first packet data comprises an access control address list and the access control address list records an access control address of a first group of electronic display devices of the plurality of electronic display devices; and transmitting an ACK message to the wireless signal transmission device, when a MAC address of at least one first electronic display device is in the access control address list; and changing the method of transmission from broadcast to unicast for transmitting a second packet data to the first electronic display device, when the wireless signal transmission device receives the ACK message from the first electronic display device of the first group of electronic display devices; wherein the second packet data comprises a video packet data. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification