KR101560607B1 - band pass filtter apparatus for cable broadcasting - Google Patents

band pass filtter apparatus for cable broadcasting Download PDF

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Publication number
KR101560607B1
KR101560607B1 KR1020150069581A KR20150069581A KR101560607B1 KR 101560607 B1 KR101560607 B1 KR 101560607B1 KR 1020150069581 A KR1020150069581 A KR 1020150069581A KR 20150069581 A KR20150069581 A KR 20150069581A KR 101560607 B1 KR101560607 B1 KR 101560607B1
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KR
South Korea
Prior art keywords
circuit board
cable
filter module
case
connector
Prior art date
Application number
KR1020150069581A
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Korean (ko)
Inventor
전재관
Original Assignee
주식회사 충청라인
전재관
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 충청라인, 전재관 filed Critical 주식회사 충청라인
Priority to KR1020150069581A priority Critical patent/KR101560607B1/en
Application granted granted Critical
Publication of KR101560607B1 publication Critical patent/KR101560607B1/en

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • H03H7/0161—Bandpass filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The present invention relates to a bandpass filter apparatus for cable broadcasting. The bandpass filter apparatus for cable broadcasting comprises: a fixing plate which comprises a cable connection unit including an arm connector fixed and installed on an upper portion of a rear surface thereof, and is fixed and installed in an outlet box installed on a wall surface; and a filter module detachably installed on a front surface of the fixing plate. The filter module comprises: a case which is detachably mounted on the fixing plate; and a circuit board which is installed in the case, and comprises a bandpass filter circuit which is loaded thereon and passes only a specific frequency band to limit a number of channels which can be received. Since a cable broadcasting subscriber is prevented from removing the filter module at will, a user who does not subscribe a pay channel is prevented from viewing a certain reception limited channel without permission.

Description

TECHNICAL FIELD [0001] The present invention relates to a band filter device for wired broadcasting,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band-pass filter device for wired broadcasting, which restricts the reception of some channels of wired broadcasting, and more particularly to a cable television subscriber which does not arbitrarily separate filter modules.

In general, cable broadcasting is provided only to paying subscribers and has more channels than general airwaves.

The channel of the cable broadcasting is provided only in addition to the basic channel, provided that the subscriber has to pay an additional charge.

Therefore, in the case of a basic subscriber, a band filter is used which allows only a specific frequency band to pass and to limit the number of receivable channels.

That is, in the case of the basic subscriber, a band-pass filter is installed to restrict reception of some additional charge channels.

The following Patent Document 1 discloses a band-pass filter for wired broadcasting.

Patent Document 1 discloses a band filter for wired broadcasting in which a ground portion is formed at both ends, a receiving portion is formed on one side thereof, and a transmitting portion is formed on the other side, and a frequency band allocated on a printed circuit board A filter body provided with a coil so as to pass therethrough; A tubular case formed with hooks at both ends of the inner circumferential surface so that the filter body is embedded; And connectors each having a fitting portion and a threaded portion which are fitted in both side openings of the case and have both ends of the filter body and are respectively in contact with the contacted portions.

In the case of the band-pass filter for wired broadcasting according to Patent Document 1, since the filter body is easily installed inside the cylindrical case by means of the two connectors, the band filter can be manufactured and maintained easily and the price of the band filter can be made low, It is impossible to prevent unauthorized viewing of some restricted channels.

Accordingly, a technique has been proposed in which the base channel subscriber can not divide the band-pass filter to unauthorizedly view the restricted channel.

The following Patent Document 2 discloses a cable connection locking device that prevents a general person from connecting a cable arbitrarily for preventing an urban environment such as CATV broadcasting.

The cable connection locking device of Patent Document 2 is characterized in that a terminal connector provided with a cable connection terminal to which a cable connector is screwed is connected to the terminal and a cable connector to be connected to the terminal connector and / And a tubular body which is fixed in place.

In the case of the cable connection locking device of Patent Document 2, the cable connector and the band filter can be fastened or disassembled by using a dedicated connector driver in the tube body, thereby preventing the cable from being connected or disconnected without a dedicated connector driver, The cable connection attempt can be blocked first.

Korean Utility Model Publication No. 20-1999-0022770 (published on July 05, 1999) Korean Registered Patent No. 10-0469891 (issued February 02, 2005)

However, the conventional band filter device for wired broadcasting according to the prior art, which includes Patent Document 2, has a problem that the fabrication and construction of the filter module equipped with the band filter circuit are troublesome and the fabrication cost and the construction cost become large and the maintenance becomes difficult there was.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide a band filter device for wired broadcasting which can prevent unauthorized viewing of a reception limited channel by unauthorized removal of a band filter by a wired broadcasting subscriber It is in that.

The present invention is to provide a band filter device for wired broadcasting, which can be easily manufactured and easily installed in an outlet box.

In order to accomplish the above object, the band filter device for wired broadcasting according to the present invention is characterized in that a cable connecting unit including an arm connector is fixedly installed on an upper part of the rear surface, plate; And a filter module detachably mounted on a front surface of the fixing plate, wherein the filter module is detachably coupled to the fixing plate; And a circuit board mounted in the case and having a band filter circuit mounted thereon for allowing only a specific frequency band to pass therethrough so as to limit the number of receivable channels.

The band filter device for wired broadcasting according to the present invention is characterized in that the case has an elastic fastening protrusion provided at the center of the rear upper end and the rear lower end and inserted into the fastening hole of the fastening plate; A circuit board support boss protruding from an inner front center; A circuit board support step provided at the center of the inner peripheral surface; And a male connector insertion hole provided at a lower portion of the circuit board, wherein a male connector is provided at an upper portion of a rear surface of the circuit board, and a female connector is provided at a lower front of the circuit board.

In the band filter device for wired broadcasting according to the present invention, a wired broadcasting supply cable provided by a cable broadcasting provider is connected to the cable connecting unit, and a male connector provided on the filter module circuit board is connected to a female connector And a male connector provided at one end of a receiving cable of a cable broadcasting receiving apparatus is connected to an female connector provided on the filter module circuit board.

According to the band filter device for wired broadcasting according to the present invention, since the filter module equipped with the band filter circuit is firmly mounted inside the outlet box, it is possible to prevent the wired broadcasting subscriber from being removed arbitrarily, It is possible to prevent unauthorized viewing.

In addition, according to the band filter device for wired broadcasting according to the present invention, it is possible to easily manufacture and install a filter module including a case and a circuit board, thereby saving costs and facilitating construction and maintenance.

1 is a perspective view of an outlet box equipped with a band filter device for wired broadcasting according to a preferred embodiment of the present invention,
FIG. 2 is an exploded perspective view of a cover of an outlet box in which the band filter device for wired broadcasting according to the preferred embodiment is mounted;
3 is an exploded perspective view of the band filter device for wired broadcasting according to the preferred embodiment,
4 is an exploded cross-sectional view of a band filter device for wired broadcasting according to the preferred embodiment,
5 is an assembled sectional view of a band filter device for wired broadcasting according to the preferred embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a band filter device for wired broadcasting according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the following, the terms "upward", "downward", "forward" and "rearward" and other directional terms are defined with reference to the states shown in the drawings.

FIG. 1 is a perspective view of an outlet box equipped with a band filter device for wired broadcasting according to a preferred embodiment of the present invention, and FIG. 2 is an exploded perspective view of a cover of an outlet box equipped with the band filter device for wired broadcasting according to the preferred embodiment.

FIG. 3 is an exploded perspective view of the band filter device for wired broadcasting according to the present preferred embodiment, FIG. 4 is an exploded cross-sectional view of the band filter device for wired broadcasting according to the preferred embodiment, FIG. 5 is a cross- Sectional view of the filter device.

The band filter apparatus 100 for wired broadcasting according to the preferred embodiment of the present invention includes a fixed plate 110 and a filter module 120.

The fixing plate 110 is fixed to the inside of the outlet box 130 inserted into the wall.

A cable connection unit 140 including an arm connector 141 is fixedly installed on a rear surface of the fixing plate 110.

The female connector 141 of the cable connection unit 140 protrudes to the front surface of the fixing plate 110.

A cable broadcasting supply cable (not shown) provided by a cable broadcasting provider is connected to the cable connection unit 140.

The filter module 120 is detachably installed on the front surface of the fixing plate 110.

The filter module 120 includes a case 121 and a circuit board 122.

The case 121 of the filter module 120 is rectangular and has an elastic fastening protrusion 121a inserted into the fastening hole 111 of the fastening plate 110 at the rear upper center and the rear lower center. do.

A circuit board support boss 121b protrudes from the inner front surface of the case 121 of the filter module 120 and a circuit board support step 121c is formed at the center of the inner surface of the case 121.

A male connector insertion hole 121d is formed in a lower portion of the case 121 of the filter module 120. [

The circuit board 122 of the filter module 120 is equipped with a band filter circuit that allows only a specific frequency band to pass therethrough so as to limit the number of receivable channels. .

A male connector 123 having a connecting pin 123a is provided on a rear upper surface of the circuit board 122 of the filter module 120. In the lower part of the front surface of the circuit board 122 of the filter module 120, A female connector 124 having a female connector 124a is provided.

The male connector 123 provided on the filter module circuit board 122 is connected to the female connector 141 of the cable connecting unit 140 provided on the fixed plate 110.

A female connector 124 provided on the filter module circuit board 122 is connected to a male connector 151 provided at one end of a receiving cable 150 of a cable broadcasting receiving device.

Reference numeral 131 denotes an outlet box cover, and 125 denotes a circuit board fixing screw.

When the filter module 120 is assembled in the band filter device 100 for wired broadcasting according to the preferred embodiment of the present invention, the circuit board 122 is inserted into the case 121, And then the circuit board fixing screw 125 is fastened to the circuit board support boss 121b after the circuit board support step 121c and the circuit board support boss 121b are supported on the circuit board support boss 121b.

The female connector 124 protruding from the bottom of the front surface of the circuit board 122 in the process of inserting the circuit board 122 of the filter module 120 into the case 121 is inserted into the male connector insertion hole 121d ).

When the filter module 120 is installed in the band filter device 100 for wired broadcasting according to the preferred embodiment of the present invention, the filter module 120 is installed in the fastening hole 111 provided in the fixing plate 110 fixed inside the outlet box 110, The elastic fastening protrusion 121a of the module case 121 may be inserted and coupled.

In the process of coupling the filter module case 121 to the fixing plate 110, the male connector 123 provided on the upper part of the back surface of the circuit board 122 is connected to the cable connecting unit 140 (Not shown).

The male connector 151 provided at one end of the receiving cable 150 of the cable broadcasting receiving apparatus is inserted into the male connector insertion hole 141 of the filter module case 121 in the state in which the filter module 120 is fastened to the fixed plate 110, The male connector 151 of the receiving cable 150 can be connected to the female connector 124 provided at the front lower portion of the filter module circuit board 122 by inserting the female connector 151 into the female connector 121d.

Since the wired broadcasting supply signal supplied through the cable connection unit 140 is supplied to the wired broadcasting receiver through the band filter circuit mounted on the circuit board 122 of the filter module 120, The broadcasting subscriber can view the cable broadcasting with limited channels by the band filter circuit.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

100: band filter device
110: Fixing plate
120: Filter module
121: Case
122: circuit board
123: male connector
124: female connector
130: Outlet box
140: Cable connection unit
141: female connector

Claims (3)

delete A fixing plate 110 fixedly installed in a cable connecting unit 140 including an arm connector 141 at an upper portion of a rear surface thereof and fixed to the inside of an outlet box 130 inserted into a wall;
And a filter module (120) detachably installed on the fixed plate (110)
The filter module (120)
A case 121 detachably coupled to the front surface of the fixing plate 110;
And a circuit board 122 mounted on the inside of the case 121 and equipped with a band filter circuit that allows only a specific frequency band to pass therethrough so as to limit the number of receivable channels,
The case 121 includes:
An elastic fastening protrusion 121a provided at the rear upper center and the rear lower center and inserted into the fastening hole 111 of the fastening plate 110;
A circuit board support boss 121b protruding from the center of the inner front surface;
A circuit board support step 121c provided at the center of the inner peripheral surface;
And a male connector insertion hole 121d provided at a lower portion thereof,
Wherein a male connector (123) is provided on an upper part of the rear surface of the circuit board (122), and an arm connector (124) is provided on a lower part of a front surface of the circuit board (122).
3. The method of claim 2,
A cable broadcasting supply cable provided by a cable broadcasting provider is connected to the cable connection unit 140,
The male connector 123 provided on the filter module circuit board 122 is connected to the female connector 141 of the cable connecting unit 140 provided on the fixed plate 110,
Wherein a male connector (151) provided at one end of a receiving cable (150) of a cable broadcasting receiving device is connected to an female connector (124) provided on the filter module circuit board (122).
KR1020150069581A 2015-05-19 2015-05-19 band pass filtter apparatus for cable broadcasting KR101560607B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150069581A KR101560607B1 (en) 2015-05-19 2015-05-19 band pass filtter apparatus for cable broadcasting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150069581A KR101560607B1 (en) 2015-05-19 2015-05-19 band pass filtter apparatus for cable broadcasting

Publications (1)

Publication Number Publication Date
KR101560607B1 true KR101560607B1 (en) 2015-10-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150069581A KR101560607B1 (en) 2015-05-19 2015-05-19 band pass filtter apparatus for cable broadcasting

Country Status (1)

Country Link
KR (1) KR101560607B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001135405A (en) 1999-11-05 2001-05-18 Matsushita Electric Works Ltd Television receptacle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001135405A (en) 1999-11-05 2001-05-18 Matsushita Electric Works Ltd Television receptacle

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