Mirror display system having low data traffic and method thereof

• US 10,120,637 B2
• Filed: 11/05/2015
• Issued: 11/06/2018
• Est. Priority Date: 12/09/2014
• Status: Active Grant

• Current Assignee: Barco Limited (Barco NV)
• Original Assignee: Barco Limited (Barco NV)
• Inventors: Liu, Shih-Ping, Chou, Kuan-Yu, Chang, Cheng-Hsiung, Wang, Yen-Hsiang, Kuo, Chia-Chen
• Primary Examiner(s): Phantana-angkool, David
• Application Number:
  US14/933,296
• Publication Number:
  US 20160162251A1
• Time in Patent Office: 1,097 Days
• Field of Search: 715761
• CPC Class Codes: G06F 3/1415 with means for detecting differences between the image stored in the host and the images displayed on the displays
• CPC Class Codes: G06F 3/1462 with means for detecting differences between the image stored in the host and the images displayed on the remote displays
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 2370/16 Use of wireless transmission of display information
• CPC Class Codes: G09G 5/14 Display of multiple viewports

Abstract

A mirror display system having low data traffic comprises a transmitting-end device and a receiving-end device. The transmitting-end device stores a first file and transforms the first file into the first page images. The receiving-end device stores a second file with same content of the first file and transforms the second file into the second page images. The transmitting-end device selects one of the first page images according to a page-selecting operation, and transmits an identifying page data of the selected first page image to the receiving-end device. The receiving-end device selects and displays one of the second page images corresponding to the identifying page data. With pre-storing the file duplicate in the receiving-end device and the receiving-end automatically generating the image, the required data traffic of the mirror display is effectively reduced and the mirror display operation is made smoother.

Claims

1. A mirror display system having low data traffic, comprising:

a transmitting-end device, comprising;

a first wireless transceiver;

a human machine interface displaying images and receiving a page-selecting operation;

a first memory storing the first file; and

a first processor electrically connected to the first wireless transceiver, the human machine interface and the first memory, comprising;

a first transforming module reading and transforming the first file into a plurality of the first page images; and

a first processing module connected to the first transforming module, selecting one of the plurality of first page images according to the page-selecting operation, transmitting the selected first page image to the human machine interface for displaying and externally transmitting an identifying page data of the selected first page image via the first wireless transceiver; and

a receiving-end device connected to a display module, and comprising;

a second wireless transceiver receiving the identifying page data from the transmitting-end device;

a second memory storing a second file, wherein the second file and the first file having the same content; and

a second processor electrically connected to the first wireless transceiver and the second memory, comprising;

a second transforming module reading and transforming the second file into a plurality of the second page images, wherein the plurality of the second page images respectively corresponding the plurality of the first page images; and

a second processing module connected to the second transforming module, selecting one of the plurality of second page images according to a page-selecting operation, and transmitting the selected first page image to the display module for displaying, wherein the selected second file image and the selected first file image having the same content;

wherein the first processor further comprises a first zooming module connected to the first processing module, adjusting the visual range of the first page image currently displayed on the human machine interface according to a screen zooming operation received by the human machine interface, and calculating zooming control data according to the adjusted visual range of the first page image;

the second processor further comprises a second zooming module connected to the second processing module, adjusting the visual range of the second page image currently displayed on the display module according to the zooming control data.

2. The mirror display system having low data traffic of claim 1, wherein the first processor further comprises a first synchronizing module connected to the first processing module, sending a waning via a first warning unit or transmitting the first file to the receiving-end device to be the second file via the first wireless transceiver upon detecting the second file not stored in the receiving-end device.

3. The mirror display system having low data traffic of claim 1, wherein the second processor further comprises a second synchronizing module connected to the second processing module, sending a waning via a second warning unit or transmitting the second file to the receiving-end device to be the first file via the first wireless transceiver upon detecting the first file not stored in the receiving-end device.

4. The mirror display system having low data traffic of claim 1, wherein the zooming control data comprises a first reference point location and a first visual range dimension based on the first page image.

5. The mirror display system having low data traffic of claim 1, wherein the first zooming module calculates the zooming control data according to a first reference point location based on the first page images, a first visual range dimension and a ratio between the first page image and the second page image, and the zooming control data comprises a second reference point location and a second visual range dimension based on the second page image.

6. The mirror display system having low data traffic of claim 1, wherein the first processor further comprises a first note module connected to the first processing module, calculating note data according to a note operation received by the human machine interface, and drawing pictures on a first note picture layer according to the note data, the first note module simultaneously displays the first page image and the first note picture layer via the human machine interface;

the second processor further comprises a second note module connected to the second processing module, receiving the note data via the second wireless transceiver, and drawing pictures on a second note picture layer according to the note data, the second note module simultaneously displays the second page image and the second note picture layer via the display module.

7. The mirror display system having low data traffic of claim 6, wherein the note data comprises a plurality of note coordinates based on the first page image.

8. The mirror display system having low data traffic of claim 6, wherein the first processor further comprises a first recovering module connected to the first processing module, calculating recovery data according to a recovery operation received by the human machine interface, and deleting the pictures drew previously on the first note picture layer according to the recovery data;

the second processor further comprises a second recovering module connected to the second processing module, receiving the recovery data via the second wireless transceiver, and deleting the pictures drew previously on the second note picture layer according to the recovery data.

9. The mirror display system having low data traffic of claim 1, wherein the first processor further comprises a first special effect module connected to the first processing module, generating a special effect corresponding to the special effect playing operation, and generating a special effect data corresponding the special effect upon the human machine interface receives a special effect playing operation, and playing the special effect for dynamically displaying the first page image in the human machine interface, the first special effect module transmits the special effect data to the receiving-end device via the first wireless transceiver;

the second processor further comprises a second special effect module connected to the second processing module, receiving the special effect data, inquiring the special effect corresponding to the special effect data via the second wireless transceiver, and playing the special effect for dynamically displaying the second page images in the display module, wherein the second page image corresponds to the first page images.

10. A mirror displaying method having low data traffic used in a mirror display system, the mirror display system comprising a transmitting-end device and a receiving-end device, the mirror display method comprise following steps:

a) the transmitting-end device reading a first file;

b) transforming the first file into a plurality of the first page images;

c) receiving a page-selecting operation;

d) selecting one of the plurality of the first page images according to the page-selecting operation;

e) displaying the selected first page image;

f) transmitting the identifying page data of the selected first page image to the receiving-end device;

g) the receiving-end device reading a second file, wherein the second file and the first file have the same content;

h) transforming the second file into a plurality of the second page images, wherein the plurality of the second page images respectively corresponding the plurality of the first page images;

i) selecting the second page images corresponding to the identifying page data;

j) displaying the selected second page images, wherein the selected second page images and the selected first page images have the same content;

k1) the transmitting-end device receiving a screen zooming operation;

k2) adjusting the visual range of the first page image currently displayed according to a screen zooming operation;

k3) calculating zooming control data according to the adjusted visual range of the first page image and transmitting the zooming control data to the receiving-end device; and

k4) the receiving-end device adjusting the visual range of the second page image currently displayed according to the zooming control data.

11. The mirror displaying method having low data traffic of claim 10, wherein the method further comprises a step a1 before the step a:

sending a waning or transmitting the first file to the receiving-end device to be the second file upon detecting the second file not stored in the receiving-end device.

12. The mirror displaying method having low data traffic of claim 10, wherein the method further comprises a step a2 before the step a:

sending a waning or transmitting the second file to the receiving-end device to be the first file upon detecting the first file not stored in the receiving-end device.

13. The mirror displaying method having low data traffic of claim 10, wherein the zooming control data comprises a first reference point location and a first visual range dimension based on the first page image.

14. The mirror displaying method having low data traffic of claim 10, wherein, in the step k3, the zooming control data is calculated according to a first reference point location, a first visual range dimension and a ratio between the first page image based on the first page images and the second page image, and the zooming control data comprises a second reference point location and a second visual range dimension based on the second page image.

15. The mirror displaying method having low data traffic of claim 10, wherein the method further comprises following steps:

l1) the transmitting-end device receiving a note operation;

l2) calculating note data according to the note operation;

l3) drawing pictures on a first note picture layer according to the note data;

l4) simultaneously displaying the first page image and the first note picture layer;

l5) transmitting the note data to the receiving-end device;

l6) the receiving-end device drawing pictures on a second note picture layer according to the note data; and

l7) simultaneously displaying the second page images and the second note picture layer.

16. The mirror displaying method having low data traffic of claim 15, wherein the note data comprises a plurality of note coordinates based on the first page image.

17. The mirror displaying method having low data traffic of claim 15, wherein the method further comprises following steps:

m1) the transmitting-end device receiving a recovery operation;

m2) calculating the recovery data according to the latest note data;

m3) deleting the pictures drew preciously on the first note picture layer according to the recovery data;

m4) transmitting the recovery data to the receiving-end device; and

m5) the receiving-end device deleting the pictures drew preciously on the second note picture layer according to the recovery data.

18. The mirror displaying method having low data traffic of claim 10, wherein the method further comprises following steps:

n1) the transmitting-end device receiving a special effect playing operation;

n2) retrieving a special effect according to the special effect playing operation;

n3) executing the special effect for dynamically displaying the first page image;

n4) transmitting the special effect data corresponding to the special effect to the receiving-end device; and

n5) the receiving-end device retrieving the corresponding special effect according to the special effect data, and executing the special effect for dynamically displaying the second page image.