JPH0486380U - - Google Patents

Info

Publication number
JPH0486380U
JPH0486380U JP12928090U JP12928090U JPH0486380U JP H0486380 U JPH0486380 U JP H0486380U JP 12928090 U JP12928090 U JP 12928090U JP 12928090 U JP12928090 U JP 12928090U JP H0486380 U JPH0486380 U JP H0486380U
Authority
JP
Japan
Prior art keywords
video camera
light receiving
light source
intercom device
door intercom
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP12928090U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP12928090U priority Critical patent/JPH0486380U/ja
Publication of JPH0486380U publication Critical patent/JPH0486380U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Closed-Circuit Television Systems (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案にかかるビデオカメラ付きドアホ
ン装置のブロツク図である。 １は発光回路、２は光源、３は受光回路、４は
受光素子、１１はスイツチング回路、１２はＤフ
リツプフロツプ、１３はワンシヨツト回路、１５
，１６は重畳分離回路、２１は垂直同期分離回路
。 The drawing is a block diagram of a door intercom device with a video camera according to the present invention. 1 is a light emitting circuit, 2 is a light source, 3 is a light receiving circuit, 4 is a light receiving element, 11 is a switching circuit, 12 is a D flip-flop, 13 is a one shot circuit, 15
, 16 is a superposition separation circuit, and 21 is a vertical synchronization separation circuit.

Claims (1)

【実用新案登録請求の範囲】 (1) 子機側に設けられたビデオカメラにて撮像
された映像信号を、親機側に伝送して録画する構
成としたビデオカメラ付きドアホン装置であつて
、 所定周期でパルス点滅する光源と、前記光源の
人物等からの反射光を受光素子にて受光し、この
受光素子の出力信号中に前記所定周期のパルス成
分が検出されたとき出力を生じる受光回路とを設
け、 前記受光回路の出力信号に応答してビデオカメ
ラより出力される映像信号の録画を開始する構成
としたことを特徴とするビデオカメラ付きドアホ
ン装置。 (2) 光源が人物照明用光源であることを特徴と
する請求項１記載のビデオカメラ付きドアホン装
置。 (3) 受光回路の出力信号をビデオカメラの映像
信号の垂直ブランキング期間に重畳することを特
徴とする請求項１記載のビデオカメラ付きドアホ
ン装置。[Scope of Claim for Utility Model Registration] (1) A door intercom device with a video camera configured to transmit and record a video signal captured by a video camera installed on the handset side to the base unit side, A light source that flashes pulses at a predetermined period, and a light receiving circuit that receives reflected light from a person or the like of the light source with a light receiving element, and generates an output when a pulse component of the predetermined period is detected in the output signal of the light receiving element. What is claimed is: 1. A door intercom device with a video camera, characterized in that the video camera is configured to start recording a video signal output from a video camera in response to an output signal of the light receiving circuit. (2) The door intercom device with a video camera according to claim 1, wherein the light source is a light source for illuminating a person. (3) The door intercom device with a video camera according to claim 1, wherein the output signal of the light receiving circuit is superimposed on a vertical blanking period of a video signal of the video camera.
JP12928090U 1990-11-30 1990-11-30 Pending JPH0486380U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12928090U JPH0486380U (en) 1990-11-30 1990-11-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12928090U JPH0486380U (en) 1990-11-30 1990-11-30

Publications (1)

Publication Number Publication Date
JPH0486380U true JPH0486380U (en) 1992-07-27

Family

ID=31876689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12928090U Pending JPH0486380U (en) 1990-11-30 1990-11-30

Country Status (1)

Country Link
JP (1) JPH0486380U (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033056U (en) * 1973-07-18 1975-04-10
JPS5642479A (en) * 1979-09-13 1981-04-20 Hochiki Corp Television interphone device
JPS5693493A (en) * 1979-12-27 1981-07-29 Hitachi Denshi Syst Service Kk Cctv monitor device
JPS63142990A (en) * 1986-12-05 1988-06-15 Sony Corp Monitoring device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033056U (en) * 1973-07-18 1975-04-10
JPS5642479A (en) * 1979-09-13 1981-04-20 Hochiki Corp Television interphone device
JPS5693493A (en) * 1979-12-27 1981-07-29 Hitachi Denshi Syst Service Kk Cctv monitor device
JPS63142990A (en) * 1986-12-05 1988-06-15 Sony Corp Monitoring device

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