Apparatus and method for displaying a television video signal and data in a mobile terminal according to a mode thereof

• US 20040055011A1
• Filed: 09/10/2003
• Published: 03/18/2004
• Est. Priority Date: 09/17/2002
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jang, Hwan-Gee, Kim, Yong-Min, Bae, Seung-Gyun
• Granted Patent: US 9,838,640 B2
• Time in Patent Office: Days
• US Class Current: 725/62
• CPC Class Codes: H04B 1/406 with more than one transmission mode, e.g. analog and digital modes
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality
• CPC Class Codes: H04M 1/72427 for supporting games or graphical animations
• CPC Class Codes: H04N 2007/145 Handheld terminals
• CPC Class Codes: H04N 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/42215 by measuring the time interval during which a key is pressed, e.g. for inputting sequences of digits when selecting a television channel
• CPC Class Codes: H04N 21/4222 Remote control device emulator integrated into a non-television apparatus, e.g. a PDA, media center or smart toy remote control device for a television receiver integrated into a mobile phone H04M1/72415
• CPC Class Codes: H04N 21/4312 involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
• CPC Class Codes: H04N 21/4314 for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/4331 Caching operations, e.g. of an advertisement for later insertion during playback
• CPC Class Codes: H04N 21/4396 by muting the audio signal
• CPC Class Codes: H04N 21/4402 involving reformatting operations of video signals for household redistribution, storage or real-time display details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 21/440263 by altering the spatial resolution, e.g. for displaying on a connected PDA
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/478 Supplemental services, e.g. displaying phone caller identification, shopping application
• CPC Class Codes: H04N 21/485 End-user interface for client configuration
• CPC Class Codes: H04N 21/4884 for displaying subtitles
• CPC Class Codes: H04N 5/38 Transmitter circuitry for the transmission of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 5/4448 : for frame-grabbing
• CPC Class Codes: H04N 5/44504 : Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
• CPC Class Codes: H04N 7/147 : Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q

Abstract

An apparatus and method for receiving and displaying a television signal and a data signal in a mobile terminal. The mobile terminal includes a display unit with a video data display area and a user data display area. The mobile terminal determines in a standby mode whether it is set to a television mode or communication mode. If the mobile terminal is set to the television mode, it controls a tuner to select a desired television channel. The mobile terminal stores video data of a current frame received over the selected channel and user data corresponding to the selected channel in a memory unit, outputs video data of a previous frame stored in the memory unit to the video data display area of the display unit in a frame period and then outputs the user data stored in the memory unit to the user data display area of the display unit upon completing the output of the video data of the previous frame. In the communication mode, the mobile terminal stops the operation of the tuner and displays user data generated in the communication mode in the video data display area and user data display area.

Claims

1. A display apparatus for a mobile terminal for displaying a television video signal in the mobile terminal, comprising:

control means for generating a plurality of commands for execution of a television mode and a communication mode and user data corresponding to a television picture being displayed;

a tuner for receiving a television signal of a selected channel;

a decoder for decoding the television signal received by said tuner to separate it into said television video signal, an audio signal and synchronous signals;

video processing means for, in said television mode, converting said video signal from said decoder into digital video data, processing and storing the converted digital video data on a frame basis and outputting stored video data of a previous frame in a frame period and then outputting said user data and, in said communication mode, stopping operations of said tuner and decoder and outputting said user data from said control means; and

display means having first and second display areas, said display means displaying said frame video data and user data from said video processing means respectively in said first and second display areas in said television mode, and displaying said user data from said video processing means in said first and second display areas in said communication mode.

2. The display apparatus as set forth in claim 1, wherein said video processing means includes:

an analog/digital (A/D) converter for converting said video signal from said decoder into said digital video data;

a format scaler for scaling a size of said video data to a frame size synchronously with said synchronous signals from said decoder;

first to third memories; and

a memory controller for, in said television mode, storing video data of a current frame from said format scaler in said second or third memory at the same time as outputting video data of a previous frame stored in said third or second memory, outputting user data stored in said first memory upon completing the output of said video data of said previous frame and repeating these storage and output operations and, in said communication mode, storing said user data in said first memory and/or second memory and outputting the stored user data.

3. The display apparatus as set forth in claim 2, wherein said video processing means further includes an on-screen display (OSD) controller for designating, copying and displaying a desired area of said user data stored in said first memory.

4. The display apparatus as set forth in claim 3, wherein said video processing means further includes an Inter Integrated Circuit (I2C) controller for transferring channel control data from said control means to said tuner in an I2C communication manner.

5. The display apparatus as set forth in claim 2, wherein:

said memory controller is adapted to output video data of a frame being displayed on said display means as a still picture in response to a capture key input; and

said control means is adapted to access said video data being output as said still picture.

6. The display apparatus as set forth in claim 2, wherein said memory controller is adapted to rotate and output a picture being displayed on said display means in response to a rotate key input.

7. The display apparatus as set forth in claim 6, wherein said memory controller is adapted to scale up and output said rotated and output picture.

8. A method for displaying a television video signal in a mobile terminal with a display unit, said display unit having a video data display area and a user data display area, said method comprising the steps of:

a) determining in a standby mode whether said mobile terminal is set to a television mode or communication mode;

b), if said mobile terminal is set to said television mode, controlling a tuner to select a desired television channel;

c) receiving a television signal over the selected television channel and separating the received television signal into said television video signal, an audio signal and synchronous signals;

d) converting said separated video signal into video data of a current frame in response to said synchronous signals, storing the video data of the current frame and user data in a memory unit, outputting video data of a previous frame stored in said memory unit to said video data display area of said display unit and then outputting said user data stored in said memory unit to said user data display area of said display unit upon completing the output of said video data of said previous frame; and

e), if said mobile terminal is set to said communication mode, storing user data generated in said communication mode in said memory unit and displaying the stored user data in said video data display area and user data display area of said display unit.

9. The method as set forth in claim 8, wherein said step d) includes the steps of:

d-1) converting said separated video signal into digital video data;

d-2) scaling a size of said converted digital video data to a frame size synchronously with said synchronous signals to generate said video data of said current frame; and

d-3) storing said video data of said current frame in a second or third memory of said memory unit at the same time as outputting and displaying said video data of said previous frame stored in said third or second memory, outputting and displaying said user data stored in a first memory of said memory unit upon completing the output of said video data of said previous frame and repeating these storage and output operations.

10. The method as set forth in claim 9, wherein said step d-3) includes the step of, in response to a capture key input, outputting and displaying video data of a frame being displayed, as a still picture and storing the video data of the displayed still picture.

11. The method as set forth in claim 9, wherein said step d-3) includes the step of, in response to a rotate key input, rotating and outputting a currently displayed picture.

12. The method as set forth in claim 11, wherein said step d-3) further includes the step of scaling up and outputting the currently displayed picture if the rotation is made by 90°

or 270°

or substantially 90°

or substantially 270°

.

13. A method for displaying a television video signal in a mobile terminal with a display unit, said display unit having a video data display area and a user data display area, said method comprising the steps of:

a), in a television mode, controlling a tuner to select a desired television channel;

b) receiving a television video signal over the selected television channel and converting the received video signal into digital video data;

c) scaling a size of said video data to a frame size;

d) storing video data of a current frame received over said selected channel and user data corresponding to said selected channel in a memory, outputting video data of a previous frame stored in said memory to said video data display area of said display unit in a frame period and then outputting said user data stored in said memory to said user data display area of said display unit upon completing the output of said video data of said previous frame;

e) determining a communication mode upon generation of a communication command at said step d);

f), if said communication mode is determined to be a data communication mode at said step e), displaying a television picture in said video data display area of said display unit and user data generated in said communication mode in said user data display area of said display unit, respectively, and returning to said step d) if said communication mode is ended; and

g), if said communication mode is determined to be a voice communication mode at said step e), displaying a television picture in said video data display area of said display unit, blocking a television audio signal to perform a voice communication function and returning to said step d) if said communication mode is ended.

14. A method for displaying a television video signal in a mobile terminal with a display unit, said display unit having a video data display area and a user data display area, said method comprising the steps of:

a), in a television mode, controlling a tuner to select a desired television channel;

b) receiving a television video signal over the selected television channel and converting the received video signal into digital video data;

c) scaling a size of said video data to a frame size;

d) storing video data of a current frame received over said selected channel and user data corresponding to said selected channel in a memory, outputting video data of a previous frame stored in said memory to said video data display area of said display unit in a frame period and then outputting said user data stored in said memory to said user data display area of said display unit upon completing the output of said video data of said previous frame;

e), upon generation of a screen adjustment command at said step d), rotating and scaling up a currently displayed picture and displaying the resulting picture on said display unit at a full screen size;

f) determining a communication mode upon generation of a communication command at said step e);

g), if said communication mode is determined to be a data communication mode at said step f), displaying a television picture on said display unit, displaying user data generated in said communication mode on a desired position of the displayed television picture in an OSD manner and returning to said step e) if said communication mode is ended; and

h), if said communication mode is determined to be a voice communication mode at said step f), displaying a television picture on said display unit, blocking a television audio signal to perform a voice communication function and returning to said step e) if said communication mode is ended.

15. A mobile terminal for performing a television mode and a communication mode, comprising:

control means for generating a plurality of commands for execution of said television mode and communication mode, user data corresponding to a television picture being displayed and a plurality of commands for execution of said television mode or an OSD mode as a display mode when said communication mode occurs in said television mode;

a tuner for receiving a television signal of a selected channel;

a decoder for decoding the television signal received by said tuner to separate it into a video signal, an audio signal and synchronous signals;

video processing means for, in said television mode, converting said video signal from said decoder into digital video data, processing and storing the converted digital video data on a frame basis and outputting stored video data of a previous frame in a frame period and then outputting said user data, and, if said communication mode occurs in said television mode and said television mode is set as said display mode, blocking said audio signal from said decoder and processing said user data from said control unit at the same time as performing said television mode and, if said communication mode occurs in said television mode and said OSD mode is set as said display mode, blocking the output of said decoder and processing said user data; and

display means having first and second display areas, said display means displaying said frame video data and user data from said video processing means respectively in said first and second display areas in said television mode, and displaying said user data from said video processing means in said first and second display areas in said communication mode.

16. The mobile terminal as set forth in claim 15, wherein said video processing means includes:

an A/D converter for converting said video signal from said decoder into said digital video data;

a format scaler for scaling a size of said video data to a frame size synchronously with said synchronous signals from said decoder;

first to third memories; and

a memory controller for, in said television mode, storing video data of a current frame from said format scaler in said second or third memory at the same time as outputting video data of a previous frame stored in said third or second memory, outputting user data stored in said first memory upon completing the output of said video data of said previous frame and repeating these storage and output operations, and, in said communication mode, if said television mode is set as said display mode, performing said operations and, if said OSD mode is set as said display mode, storing wall paper data in said third memory, storing said user data in said first memory and/or second memory and outputting the stored user data.