KR101762948B1

KR101762948B1 - Apparatus for Tuner

Info

Publication number: KR101762948B1
Application number: KR1020100115133A
Authority: KR
Inventors: 김형석
Original assignee: 엘지이노텍 주식회사
Priority date: 2010-11-18
Filing date: 2010-11-18
Publication date: 2017-07-28
Also published as: KR20120053819A

Abstract

The present invention relates to a tuner device.
The tuner apparatus according to an embodiment of the present invention includes a first demodulation unit for demodulating a video signal corresponding to a first broadcast signal output from a first broadcast signal output unit and outputting the demodulated video signal as a first output signal, A TS output unit receiving the first output signal output through the first demodulation unit or the second output signal output through the second demodulation unit and outputting any one of the output signals, A first blocking unit disposed between the first output unit and the TS output unit for blocking the second output signal from being supplied to the first demodulation unit; a second blocking unit disposed between the second demodulation unit and the TS output unit, And a second blocking unit for blocking the second demodulation unit from being supplied to the second demodulation unit.

Description

Apparatus for Tuner

An embodiment relates to a tuner apparatus.

Generally, the conventional tuner has two TS outputs when two demod ICs are internally applied. Thus, if two demod ICs have two TS outputs corresponding to the two demod ICs, the number of TS-related terminals is increased by twelve.

That is, the TS output formed in correspondence with the Demod IC has a problem that the size of the tuner becomes large.

And it is an object of the present invention to provide a tuner device capable of minimizing the size of a tuner by sharing a TS output according to an embodiment.

The tuner apparatus according to an embodiment of the present invention includes a first demodulator for demodulating a video signal corresponding to a first broadcast signal output from a first broadcast signal output unit and outputting the demodulated video signal as a first output signal, A second demodulating unit demodulating the video signal corresponding to the second broadcast signal output from the broadcast signal output unit and outputting the demodulated video signal as a second output signal, and a second demodulating unit outputting a first output signal output through the first demodulating unit and a second output signal outputted through the second demodulating unit And a TS output unit for receiving the second output signal and outputting it jointly.

The tuner apparatus according to the embodiment of the present invention includes a TS output unit for receiving a first output signal output through the first demodulator and a second output signal output through the second demodulator, There is an effect that can be.

The tuner device according to the embodiment of the present invention includes a first output signal output through the first demodulator and a second output signal output through the second demodulator, There is an effect that can be.

FIG. 1 illustrates a tuner apparatus according to an embodiment of the present invention. Referring to FIG.
FIG. 2 is a view for explaining the formation of a blocking portion in a tuner device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 illustrates a tuner apparatus according to an embodiment of the present invention. Referring to FIG.

1, a tuner apparatus 100 according to an embodiment of the present invention includes a first demodulation unit 110, a second demodulation unit 120, and a TS output unit 130 .

The first demodulation unit 110 demodulates the video signal corresponding to the first broadcast signal output from the first broadcast signal output unit and outputs the demodulated video signal as a first output signal TS1. The first demodulation unit 110 includes an integrated circuit (IC), receives a first broadcast signal output from the first broadcast signal output unit, and displays a video signal corresponding to the first broadcast signal, And demodulates the data to a device (Display Appratus) so as to output the first output signal TS1.

The second demodulation unit 120 demodulates the video signal corresponding to the second broadcast signal output from the second broadcast signal output unit different from the first broadcast signal output unit and outputs the demodulated video signal as a second output signal TS2 will be. The second demodulation unit 120 includes an integrated circuit (IC), receives a second broadcast signal output from the second broadcast signal output unit, and displays a video signal corresponding to the second broadcast signal, Demodulates the data to a display device appropriately and outputs the second output signal TS2.

For example, if the first broadcast signal is a terrestrial broadcast signal, the second broadcast signal may be a satellite broadcast signal, and if the first broadcast signal is a satellite broadcast signal, the second broadcast signal may be a terrestrial broadcast signal. In this case, the first and second broadcast signals are not limited to the terrestrial broadcast signal and the satellite broadcast signal, but only the first broadcast signal and the second broadcast signal may be different broadcast signals.

The TS output unit 130 receives the first output signal TS1 output through the first demodulation unit 110 and the second output signal TS2 output through the second demodulation unit 120, And outputs it jointly. The TS output unit 130 is electrically connected in common to the first demodulation unit 110 and the second demodulation unit 120 and is connected to the first demodulation unit 110 (Demod IC_1) and the second output signal (TS2) to be output to the second demodulation unit 120 (Demod IC_2) are all output from the terminal The size of the tuner can be minimized by the size of the terminal.

When the first output signal TS1 is output, the second output signal TS2 is not output. When the second output signal TS2 is output, the first output signal TS1 is output . That is, while the first demodulating unit 110 demodulates the video signal corresponding to the first broadcasting signal and outputs the first output signal TS1 to the TS output unit 130, the second demodulating unit 120, Demod IC_2) becomes a sleep mode or an off mode. Or Demod IC_2 demodulates the video signal corresponding to the second broadcast signal and outputs the second output signal TS2 to the TS output unit 130, IC_1) becomes a sleep mode or an off mode.

The second demodulation unit 120 (Demod IC_2) outputs the second output signal TS2 while the first output signal TS1 is output through the TS output unit 130. The first demodulation unit 120 The first output signal TS1 and the second output signal TS2 are output to the TS output unit 130 without colliding with each other by setting the sleep mode 110 or the demod IC_1 to the sleep mode or the off mode . That is, even if one TS output unit 130 is formed, the first demodulation unit 110 (Demod IC_1) and the second demodulation unit 120 (Demod IC_2) can operate normally without being influenced by each other.

Therefore, the first output signal TS1 output to the first demodulating unit 110 (Demod IC_1) and the second output signal TS2 output from the second demodulating unit 120 (Demod IC_2) are output to one TS output unit 130, the size of the tuner can be minimized compared to when the demodulation unit and the TS output unit 130 are configured in a one-to-one correspondence.

FIG. 2 is a view for explaining the formation of a blocking portion in a tuner device according to an embodiment of the present invention.

2, a tuner apparatus 100 according to an embodiment of the present invention includes a first demodulation unit 110, a second demodulation unit 120, a demodulation unit IC_2, a first demodulation unit 111, 2 blocking unit 121 and a TS output unit 130. [ The description of the first demodulation unit 110, the second demodulation unit 120, the demod IC_2 and the TS output unit 130 shown in FIG. 2 is the same as that of the first demodulation unit 110, IC_1), the second demodulation unit 120 (Demod IC_2), and the TS output unit 130, the description thereof will be omitted.

The first blocking unit 111 is disposed between the first demodulating unit 110 (Demod IC_1) and the TS output unit 130. The first blocking unit 111 blocks the second output signal TS2 output from the second demodulation unit 120 (Demod IC_2) from being supplied to the first demodulation unit 110 (Demod IC_1).

That is, in the first blocking unit 111, the second output signal TS2 output from the second demodulation unit 120 (Demod IC_2) is output to the first demodulation unit 110 (Demod IC_1) through the TS output unit 130 It is possible to prevent the first demodulating unit 110 (Demod IC_1) from malfunctioning due to the interference of the second demodulating unit 120 (Demod IC_2).

The second blocking unit 121 is disposed between the second demodulation unit 120 (Demod IC_2) and the TS output unit 130. The second blocking unit 121 blocks the first output signal TS1 output from the first demodulation unit 110 (Demod IC_1) from being supplied to the second demodulation unit 120 (Demod IC_2).

That is, the second blocking unit 121 outputs the first output signal TS1 output from the first demodulation unit 110 (Demod IC_1) to the second demodulation unit 120 (Demod IC_2) via the TS output unit 130 It is possible to prevent the second demodulating unit 120 (Demod IC_2) from malfunctioning due to the interference of the first demodulating unit 110 (Demod IC_1).

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

100: Tuner device 110: First demodulator
111: first blocking unit 120: second demodulation unit
121: second blocking unit 130: TS output unit

Claims

A first demodulator for demodulating the video signal corresponding to the first broadcast signal output from the first broadcast signal output unit and outputting the demodulated video signal as a first output signal;
A second demodulator for demodulating a video signal corresponding to a second broadcast signal output from a second broadcast signal output unit different from the first broadcast signal output unit and outputting the demodulated video signal as a second output signal; And
A TS output unit receiving the first output signal output through the first demodulation unit or the second output signal output through the second demodulation unit and outputting any one of the output signals;
A first blocking unit which is disposed between the first demodulating unit and the TS output unit and blocks the second output signal from being supplied to the first demodulating unit;
A second blocking unit disposed between the second demodulation unit and the TS output unit, for blocking the first output signal from being supplied to the second demodulation unit; Lt; / RTI >

The method according to claim 1,
The TS output section
Wherein the second output signal is not output when the first output signal is output and the first output signal is not output when the second output signal is output.

3. The method according to claim 1 or 2,
Wherein the second demodulation unit is in a sleep mode or an off mode while the first demodulation unit demodulates the video signal corresponding to the first broadcast signal output from the first broadcast signal output unit and outputs the video signal as the first output signal,
Wherein the first demodulation unit demodulates the video signal corresponding to the second broadcast signal output from the second broadcast signal output unit and outputs the demodulated video signal as the second output signal, .

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