Method and apparatus for communication between mobile phone and TV set

• US 8,736,762 B2
• Filed: 12/16/2010
• Issued: 05/27/2014
• Est. Priority Date: 04/20/2010
• Status: Active Grant

• Current Assignee: Huizhou TCL Mobile Communication Company Limited (TCL Technology Group Corp.)
• Original Assignee: Huizhou TCL Mobile Communication Company Limited (TCL Technology Group Corp.)
• Inventors: Luo, Jun, Li, Xianglai, Huang, Shuqiang
• Primary Examiner(s): Harold, Jefferey
• Assistant Examiner(s): Rahman, Mustafizur
• Application Number:
  US13/381,944
• Publication Number:
  US 20120113321A1
• Time in Patent Office: 1,258 Days
• Field of Search: 348/552, 348/492, 348/569, 348/572, 348/14.02, 348/14.03, 348/333.11, 348/333.12, 348/661, 348/705, 348/706, 348/719, 348/723, 348/729, 348/734, 345/82, 345/87, 345/156, 345/419, 345/649, 345/659, 455/466, 455/550.1, 455/566, 725/105, 725/113, 725/117, 725/140, 725/141
• US Class Current: 348/552
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G09G 5/005 Adapting incoming signals to the display format of the display terminal
• CPC Class Codes: H04M 1/72409 by interfacing with external accessories hands-free H04M1/60
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805

Abstract

The present disclosure relates to a method and an apparatus for communication between a mobile phone and a TV set. The method comprises the following steps of: generating standard RGB signals by an LCD controller in a central processing unit (CPU) of the mobile phone; transmitting the RGB signals to an LCD of the mobile phone and a TV-OUT chip simultaneously; enabling the TV-OUT chip to receive and recognize the RGB signals through configuration of commands; carrying out video conversion on the RGB signals by the TV-OUT chip to output standard AV signals; and transmitting the AV signals to a display of the TV set via a dock. With this disclosure, information on the LCD screen of the mobile phone can be transmitted to the display of the TV set.

Claims

1. A method for communication between a mobile phone and a TV (television) set, comprising the following steps of:

step 11;

generating standard RGB signals by an LCD (liquid crystal display) controller in a central processing unit (CPU) of the mobile phone;

step 12;

transmitting the RGB signals to an LCD of the mobile phone and a TV-OUT chip simultaneously;

step 13;

enabling the TV-OUT chip to receive and recognize the RGB signals through configuration of commands;

step 14;

carrying out video conversion on the RGB signals by the TV-OUT chip to output standard AV (Austere Version) signals to the TV set.

2. The method for communication between a mobile phone and a TV set of claim 1, wherein the step 14 further comprises:

step 141;

carrying out color processing and format conversion on the RGB signals by the TV-OUT chip; and

step 142;

converting the RGB signals into the standard AV signals by a digital-to-analog converter (DAC).

3. The method for communication between a mobile phone and a TV set of claim 1, wherein the commands in the step 13 are specific instructions in the corresponding chip specification.

4. The method for communication between a mobile phone and a TV set of claim 3, wherein the specific instructions include a width, a height, colorway and a frequency of an input/output image, whether the image is flipped by an angle, and a format of the output video.

10. The method for communication between a mobile phone and a TV set of claim 1, wherein the step 142 comprises one of which conversions as following:

1) the TV set having a landscape screen and the mobile phone also having a landscape screen, and the image from the mobile phone being copied to the TV set after being stretched at an equal ratio in two dimensions;

2) the TV set having a landscape screen but the mobile phone having a portrait screen, and the image from the mobile phone being stretched according to the maximum longitudinal height of the TV set'"'"'s screen while the non-image regions in the lateral direction being filled with a configurable background color;

3) the TV set having a landscape screen but the mobile phone having a portrait screen, and the image from the mobile phone being rotated by 90°

or 270°

into a landscape image and then copied to the TV set;

4) the image from the mobile phone being displayed in primary colors, and saturation of the image copied to the TV set may be adjusted depending on the user'"'"'s desire; and

5) the image from the mobile phone being displayed in primary colors, and the image copied to the TV set being displayed in black and white colors.

11. The method for communication between a mobile phone and a TV set of claim 1, wherein the AV signals to a display of the TV set is transmitting via a dock.

12. The method for communication between a mobile phone and a TV set of claim 1, wherein the dock is responsible for operating all hardware and software therein, and the dock software comprises various system software and application software installed therein.

5. An apparatus for communication between a mobile phone and a TV (television) set, comprising an LCD (liquid crystal display) of the mobile phone, a TV-OUT chip, an LCD controller for generating standard RGB signals, a 30-pin interface of the mobile phone, a dock and a TV set display, wherein the LCD controller is connected to the LCD of the mobile phone and the TV-OUT chip respectively, the TV-OUT chip is configured to receive the RGB signals, convert the RGB signals into standard AV (Austere Version) signals and transmit the standard AV signals to the 30-pin interface of the mobile phone, the standard AV signals are transmitted to the dock via the 30-pin interface of the mobile phone and are then transmitted by the dock into the TV set for displaying on the TV set display.

6. The apparatus for communication between a mobile phone and a TV set of claim 5, wherein the LCD controller is integrated in a CPU (central processing unit) of the mobile phone.

7. The apparatus for communication between a mobile phone and a TV set of claim 5, wherein a command communication interface is further disposed between the TV-OUT chip and the CPU of the mobile phone to transmit an instruction for video conversion from the CPU of the mobile phone to the TV-OUT chip.

8. The apparatus for communication between a mobile phone and a TV set of claim 6, wherein the second pin in the 30-pin interface of the mobile phone is used for serial communication with software of the dock so as to accomplish data transmission/reception and functional operations.

9. The apparatus for communication between a mobile phone and a TV set of claim 7, wherein the dock connects to the TV set via an AV cable.

13. A mobile phone used for implement communication between the mobile phone and a TV (television) set, the mobile phone comprising:

a flat panel display;

a display controller connected to the flat panel display and comprising an LCD (liquid crystal display) controller for generating standard RGB signals; and

a TV-OUT chip receiving the RGB signals, converting the RGB signals into standard AV (Austere Version) signals and transmitting the standard AV signals out of the mobile phone for a TV set.

14. The mobile phone of claim 13, further comprising a 30-pin interface, and the standard AV signals are transmitted out via the 30-pin interface.

15. The mobile phone of claim 13, wherein the TV-OUT chip to receive and recognize the data from the LCD controller through configuration of commands.

16. The mobile phone of claim 15, wherein the commands for specifying several parameters are sent through a command communication interface between a CPU (Central Processing Unit) and the TV-OUT chip.

17. The mobile phone of claim 15, wherein the TV-OUT chip specifies one or more of which through the use of commands:

a width, height, colorway and frequency of the input/output image;

whether the image is flipped by an angle;

the format of the output video.

18. The mobile phone of claim 13, wherein the TV-OUT chip carries out color processing and format conversion on the RGB digital video signals, and comprises one of which conversions as following:

1) the TV set having a landscape screen and the mobile phone also having a landscape screen, and the image from the mobile phone being copied to the TV set after being stretched at an equal ratio in two dimensions;

2) the TV set having a landscape screen but the mobile phone having a portrait screen, and the image from the mobile phone being stretched according to the maximum longitudinal height of the TV set'"'"'s screen while the non-image regions in the lateral direction being filled with a configurable background color;

3) the TV set having a landscape screen but the mobile phone having a portrait screen, and the image from the mobile phone being rotated by 90°

or 270°

into a landscape image and then copied to the TV set;

4) the image from the mobile phone being displayed in primary colors, and saturation of the image copied to the TV set may be adjusted depending on the user'"'"'s desire; and

5) the image from the mobile phone being displayed in primary colors, and the image copied to the TV set being displayed in black and white colors.