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Dual tuner image processing device using external image equipment

An image processing device and external image technology, applied in the direction of image communication, color TV parts, TV system parts, etc., can solve the problem that the image display device cannot realize the PIP function, etc.

Inactive Publication Date: 2007-03-14
LG ELECTRONICS(NANJING) PLASMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In this way, since the PIP function is realized on the basis of two tuners, it is basically impossible to realize the PIP function in an image display device equipped with one tuner.

Method used

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  • Dual tuner image processing device using external image equipment
  • Dual tuner image processing device using external image equipment
  • Dual tuner image processing device using external image equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mobile terminal devices based on high-speed, high-quality digital data communication systems also have an environment that can receive digital broadcasts. For example, digital multimedia broadcasts (Digital Multimedia Broadcasting, digital multimedia broadcasting) such as satellite DMB or terrestrial DMB can be received. A DMB receiving terminal; as a mobile terminal equipped with a DMB receiving function, a so-called DBM phone can be exemplified. DMB phones can also receive DMB broadcasts between mobile phones because they are equipped with a DMB reception function in mobile phones.

[0026] Therefore, connecting a DMB telephone to a tuner DTV makes a tuner DTV also display PIP images.

[0027] As shown in Fig. 2, a situation using a digital television receiver (DTV) and a DMB telephone is shown.

[0028] DTV200 can be divided into receiving part 210 and image output part 220 two major parts, and receiving part 210 is responsible for selecting the channel of digital b...

Embodiment 2

[0031] As shown in Figure 3, it shows that based on the communication device 330, the DMB telephone set 310 is connected with the DTV320, and the DMB broadcast signal received by the DMB telephone set 310 is displayed on the DTV320 in the form of a PIP sub-picture (or main screen) output structure.

[0032] For this reason, DMB telephone set 310 comprises following part, promptly is used for receiving, selects, the image receiving part 311 of processing DMB playing signal; The DMB playing signal that above-mentioned 3rd image receiving part 311 receives is transmitted to the image transmission part 312 of DTV320; After receiving the used PIP relevant key code of TV from DTV320 by communication device 330, for making it conform to the key code conversion part 313 that the DMB phone carries out code conversion; The tuner 314 for DMB channel switching of the three image receiving parts 311 .

[0033] In addition, the DTV 320 includes the following parts, that is, the fourth imag...

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PUM

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Abstract

A dual tuner image processing apparatus using an external display device is provided to connect the external display device to a display apparatus having a tuner to process a television broadcasting signal received by the external display device to display an image corresponding to the television broadcasting signal in a PIP(Picture In Picture) mode. A dual tuner image processing apparatus includes a first display device(320) having a tuner, a second display device(310) connected to the first display device to provide an external image signal for PIP processing, and a communication device(330) for transmitting and receiving image signals between the first and second display devices. The first display device includes an image receiver(321) for receiving the external image signal transmitted from the second display device through the communication device, and an image processor for PIP-processing the received external image signal and a broadcasting signal received through the tuner. The second display device includes an image receiver(311) for receiving an image signal, and an image transmitter(312) for transmitting the image signal to the first display device through the communication device.

Description

technical field [0001] The present invention relates to a dual tuner image processing device utilizing an external image device which can realize a PIP function in one tuner image display device by using the external image device as an external tuner. Background technique [0002] As an image display device, a television receiver is equipped with various user-friendly functions including simple selection and display of broadcast channels. [0003] Among them, like PIP, a function of simultaneously selecting and displaying two or more playback signals on one image display screen is widely implemented. At least two tuners are required to realize this PIP (or POP) function, that is, the usual method is that the broadcast signal of the channel selected by the first tuner is displayed on the main screen, and the tuner of the second channel is displayed on the main screen. This is how to display the broadcast signal of the selected channel on the sub screen. [0004] Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N5/45
CPCH04H2201/11H04N5/45H04N5/50H04N21/42204H04N21/4221
Inventor 片海涌
Owner LG ELECTRONICS(NANJING) PLASMA CO LTD