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KR940027827U - 비디오 도어폰 시스템 - Google Patents

비디오 도어폰 시스템

Info

Publication number
KR940027827U
KR940027827U KR2019930007634U KR930007634U KR940027827U KR 940027827 U KR940027827 U KR 940027827U KR 2019930007634 U KR2019930007634 U KR 2019930007634U KR 930007634 U KR930007634 U KR 930007634U KR 940027827 U KR940027827 U KR 940027827U
Authority
KR
South Korea
Prior art keywords
phone system
door phone
video door
video
phone
Prior art date
Application number
KR2019930007634U
Other languages
English (en)
Other versions
KR970001599Y1 (ko
Inventor
서인석
Original Assignee
삼성항공산업 주식회사
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 삼성항공산업 주식회사 filed Critical 삼성항공산업 주식회사
Priority to KR2019930007634U priority Critical patent/KR970001599Y1/ko
Publication of KR940027827U publication Critical patent/KR940027827U/ko
Application granted granted Critical
Publication of KR970001599Y1 publication Critical patent/KR970001599Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H04N7/186—Video door telephones
    • 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
    • H03H7/12—Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Closed-Circuit Television Systems (AREA)
KR2019930007634U 1993-05-07 1993-05-07 비디오 도어폰 시스템 KR970001599Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019930007634U KR970001599Y1 (ko) 1993-05-07 1993-05-07 비디오 도어폰 시스템

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019930007634U KR970001599Y1 (ko) 1993-05-07 1993-05-07 비디오 도어폰 시스템

Publications (2)

Publication Number Publication Date
KR940027827U true KR940027827U (ko) 1994-12-10
KR970001599Y1 KR970001599Y1 (ko) 1997-03-14

Family

ID=19354906

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019930007634U KR970001599Y1 (ko) 1993-05-07 1993-05-07 비디오 도어폰 시스템

Country Status (1)

Country Link
KR (1) KR970001599Y1 (ko)

Also Published As

Publication number Publication date
KR970001599Y1 (ko) 1997-03-14

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Legal Events

Date Code Title Description
A201 Request for examination
UA0108 Application for utility model registration

Comment text: Application for Utility Model Registration

Patent event code: UA01011R08D

Patent event date: 19930507

UA0201 Request for examination

Patent event date: 19930507

Patent event code: UA02012R01D

Comment text: Request for Examination of Application

UG1501 Laying open of application
E902 Notification of reason for refusal
UE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event code: UE09021S01D

Patent event date: 19960727

UG1604 Publication of application

Patent event code: UG16041S01I

Comment text: Decision on Publication of Application

Patent event date: 19970131

E701 Decision to grant or registration of patent right
UE0701 Decision of registration

Patent event date: 19970530

Comment text: Decision to Grant Registration

Patent event code: UE07011S01D

REGI Registration of establishment
UR0701 Registration of establishment

Patent event date: 19970617

Patent event code: UR07011E01D

Comment text: Registration of Establishment

UR1002 Payment of registration fee

Start annual number: 1

End annual number: 3

Payment date: 19970617

LAPS Lapse due to unpaid annual fee
UC1903 Unpaid annual fee