KR960003434A

KR960003434A - Door phone camera device using common antenna cable and TV

Info

Publication number: KR960003434A
Application number: KR1019940014269A
Authority: KR
Inventors: 최진호
Original assignee: 최진호
Priority date: 1994-06-22
Filing date: 1994-06-22
Publication date: 1996-01-26

Abstract

본 발명은 공동 안테나선과 텔레비젼을 이용한 도어폰 카메라 장치에 관한 것으로, 이는 방문자의 화상 신호를 텔레비젼의 사용하지 않는 채널 주파수로 변조하여 방문자를 텔레비젼에서 확인할 수 있도록 한 것이다. 이와 같이 본 발명은 방문자의 화상 신호와 방문자가 방문할려는 호수의 고유번호 데이타를 고주파 변조기(07)에 의해 텔레비젼의 사용하지 않는 채널 주파수로 변조하여 가산기(08)에 의해 공동 안테나선에 입력된다. 이 신호 중에서 음성신호 수신 복조기(10)에서 호수 공유번호를 수신 복조하여 비교기(11)를 통해 시스템 제어부1(12)에서 인식할 수 있도록 하며, 시스템 제어부1(12)는 채널 여과부(13)를 통해 변조된 방문자 화상 신호를 여과하지 않고 텔레비젼(14)에서 수신할 수 있도록 하고, 알람부(06)를 통해 방문자가 있음을 알려주는 구성을 갖음으로써 달성되는 것이다.The present invention relates to a door phone camera apparatus using a common antenna line and a television, which modulates a visitor's image signal into an unused channel frequency of a television so that the visitor can be confirmed on the television. As described above, the present invention modulates the image signal of the visitor and the unique number data of the lake to be visited by the visitor by using the high frequency modulator 07 and modulating the unused channel frequency of the television to the common antenna line by the adder 08. . Of these signals, the voice signal receiving demodulator 10 receives and demodulates the lake share number so that the system controller 1 12 recognizes the lake share number through the comparator 11, and the system controller 1 12 is the channel filter 13. This is achieved by allowing the television 14 to receive the modulated visitor image signal without filtering, and having a configuration that informs the visitor of the visitor through the alarm unit 06.

Description

Door phone camera device using common antenna cable and TV

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 종래의 도어폰 카메라의 구성도이고,1 is a block diagram of a conventional door phone camera,

제2도는 본 발명 구성도이다.2 is a block diagram of the present invention.

Claims

The visitor image signal output from the door phone camera 02 is modulated by the high frequency modulator 07 at the frequency of the unused channel of the television and transmitted to the television antenna line, so that the visitor can be identified by the television 14. Door phone camera device using a common antenna line and a television.

The comparator according to claim 1, wherein the unique number data of the lake to be visited by the visitor is modulated by the high frequency modulator 07 into an unused voice channel of the television, and the signal is received and demodulated by the voice signal receiving demodulator 10. When converting into a digital signal in (11), the system control unit 1 (12) recognizes this lake unique number data, and if it is correct, filters the channel used by the high frequency modulator (07) through the channel filtering unit (13) and receives it on the television. The door phone camera device using a common antenna line and a TV notifying the visitor through the alarm unit 06 so as not to be filtered.

※ Note: The disclosure is based on the initial application.