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Broadcasting receiving device

A broadcast receiving and terminal connection technology, which is applied in the field of broadcast receiving devices, can solve problems such as damage and capacitor damage, and achieve the effect of suppressing deterioration and low cost

Inactive Publication Date: 2013-02-06
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the noise removal inductor L1 is damaged by excessive current
Also, capacitor C1 may be damaged by strong overvoltage from the outside

Method used

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  • Broadcasting receiving device
  • Broadcasting receiving device
  • Broadcasting receiving device

Examples

Experimental program
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Embodiment Construction

[0022] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the embodiments. The advantages, features and methods for carrying out the invention will be readily apparent from the following more detailed description of the preferred embodiments of the invention. Throughout the drawings, the same reference numbers are used to designate the same or similar parts.

[0023] image 3 is a schematic diagram showing a broadcast receiving device including an isolator 300 according to an embodiment, and Figure 4 is a circuit diagram showing a noise blocking circuit according to this embodiment.

[0024] The isolator 300 is included in the tuner 500 .

[0025] Figure 4 A noise blocking circuit is shown to illustrate the operation of the blocking capacitor C3, which prevents damage to the noise removal inductor L2 by an external electric shock. The blocking capacitor C3 can prevent the...

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PUM

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Abstract

The present invention provides a broadcasting receiving device. An embodiment of the broadcasting receiving device comprises a signal line for transmitting signal; a blocking capacitor, wherein one terminal of the blocking capacitor is connected to the signal line; and a tuner, wherein the tuner is connected to the other terminal of the blocking capacitor.

Description

Background technique [0001] In general, tuners are classified into digital tuners for receiving digital broadcasts, analog tuners for receiving analog broadcasts, and analog / digital tuners for receiving both digital broadcasts and analog broadcasts. An analog / digital tuner for receiving both digital broadcasting and analog broadcasting includes: a digital surface acoustic wave (SAW) filter for allowing only an input signal corresponding to a digital broadcasting frequency band to pass; and an analog SAW filter for passing only Allows input signals corresponding to the analog broadcast band to pass. [0002] figure 1 is a schematic diagram showing a broadcast receiving device including the isolator 300 according to the related art. [0003] The broadcast receiving device includes: a cable 100 for transmitting signals; a signal amplifier 200 for amplifying the signal received from the cable 100; an isolator 300 for blocking the DC component of the output signal from the signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N5/50H04N5/21
CPCH04N5/4446H04N5/50
Inventor 朴日熙
Owner LG INNOTEK CO LTD
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