KR0124851Y1 - Circuit for reducing power consumption of viewfinder - Google Patents

Circuit for reducing power consumption of viewfinder

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Publication number
KR0124851Y1
KR0124851Y1 KR2019910014877U KR910014877U KR0124851Y1 KR 0124851 Y1 KR0124851 Y1 KR 0124851Y1 KR 2019910014877 U KR2019910014877 U KR 2019910014877U KR 910014877 U KR910014877 U KR 910014877U KR 0124851 Y1 KR0124851 Y1 KR 0124851Y1
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KR
South Korea
Prior art keywords
viewfinder
power
power supply
gate
switching means
Prior art date
Application number
KR2019910014877U
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Korean (ko)
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KR930007749U (en
Inventor
전일중
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강진구
삼성전자주식회사
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Priority to KR2019910014877U priority Critical patent/KR0124851Y1/en
Publication of KR930007749U publication Critical patent/KR930007749U/en
Application granted granted Critical
Publication of KR0124851Y1 publication Critical patent/KR0124851Y1/en

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/02—Viewfinders
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B19/00—Cameras
    • G03B19/18—Motion-picture cameras
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Studio Devices (AREA)

Abstract

이 고안은 뷰파인더 전력 절감회로에 관한 것으로서, 더욱 상세하게는 촬영자가 뷰파인더를 볼 필요가 없는 경우, 즉 장시간 한부분 녹화시, 인터발 녹화시, 리모콘을 이용한 녹화시, 비데오 모드시에는 뷰파인더에 공급되는 전원을 스위칭수단을 이용하여 차단하여 뷰파인더에 공급되는 전력을 절감하여 뷰파인더의 수명을 연장시키고 또한 밧데리의 사용시간을 연장시킨다.The present invention relates to a viewfinder power saving circuit, and more particularly, the viewfinder when the photographer does not need to look at the viewfinder, i.e. during long time partial recording, interval recording, remote control recording, and video mode. The power supply to the viewfinder is cut off by using a switching means to reduce the power supplied to the viewfinder, thereby extending the life of the viewfinder and extending the use time of the battery.

Description

뷰파인더 전력 절감회로Viewfinder Power Saving Circuit

제1도는 종래의 캠코더 블럭도.1 is a conventional camcorder block diagram.

제2도는 이 고안에 따른 캠코더 블럭도.2 is a block diagram of a camcorder according to the present invention.

제3도는 이 고안에 따른 또다른 실시예를 나타낸 캠코더의 블럭도이다.3 is a block diagram of a camcorder showing another embodiment according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 뷰파인더 20 : 영상처리부10: viewfinder 20: image processing unit

30 : 스위칭수단 A1 : AND 게이트30: switching means A1: AND gate

FET1 : 전계효과 트랜지스터 SW1 : 스위치FET1: Field effect transistor SW1: Switch

이 고안은 캠코더(Camcorder)에 관한 것으로서, 더욱 상세하게는 장시간 한부분 녹화시나 인터발(Interval)녹화시 또는 리모콘을 이용한 녹화시에 전자 뷰파인더(Electronic View -Finder ; 이하 뷰파인더라 칭함)에 공급되는 전원을 차단하여 전력을 절감하는 뷰파인더 전력 절감회로에 관한 것이다.This invention relates to a Camcorder, and more particularly, it is supplied to an Electronic View-Finder (hereinafter referred to as a viewfinder) during long time partial recording, Interval recording or recording using a remote controller. The present invention relates to a viewfinder power saving circuit that cuts power to save power.

제1도는 종래의 캠코더의 블럭도를 나타낸 것으로서, 캠코더를 이용하여 촬영할 경우에 카메라 또는 VTR(Video Tape Recorder ; 이하 비데오라 칭함) 모드에 관계없이 캠코더의 파워가 온되면 뷰파인더에 전원이 공급되어 기능이 수행되었다.FIG. 1 is a block diagram of a conventional camcorder. When a camcorder is photographed using a camcorder, the power is supplied to the viewfinder when the camcorder is turned on regardless of the camera or VTR (Video Tape Recorder) mode. The function was performed.

그러나, 상기의 방법은 촬영자가 뷰파인더 화면을 볼 필요가 없는 경우에도 뷰파인더에 전원이 공급되므로 전체 밧데리 용량에 불필요한 낭비가 생기고, 또한, 야외에서 밧데리의 사용시가은 매우 중요한데 불필요한 전력의 낭비로 밧데리의 사용시간이 짧아지는 문제점이 있었다.However, in the above method, even when the photographer does not need to look at the viewfinder screen, power is supplied to the viewfinder, which causes unnecessary waste in the overall battery capacity, and furthermore, the use of the battery outdoors is very important, but the battery is unnecessary due to waste of power. There was a problem that the use time is shortened.

이 고안은 이러한 문제점을 해결하기 위한 것으로서, 이 고안의 목적은 촬영자가 뷰파인더의 화면을 볼 필요가 없는 경우, 즉 장시간 한부분 녹화시나 시간차를 두고 녹화하는 인터발 녹화시 또는 리모콘을 이용한 녹화시 및 비데오 모드에서는 스위칭 수단을 이용하여 뷰파인더에 공급되는 전원을 차단하여 전력을 절감하는 뷰파인더 전력 절감회로를 제공하고자 한다.This invention solves this problem, and the object of this invention is that when the photographer does not need to look at the viewfinder screen, i.e. when recording a part of a long time or recording with interval, or recording with a remote controller and In the video mode, the present invention aims to provide a viewfinder power saving circuit that cuts power to the viewfinder using a switching means to save power.

이러한 목적을 달성하기 위한 이 고안의 특징은, 피사체를 녹화 및 재생하는 영상처리부와, 상기 영상처리부의 영상출력신호를 받아 녹화하고자 하는 피사체를 볼 수 있는 뷰파인더를 포함하여 된 캠코더에 있어서, 촬영자가 뷰파인더의 화면을 볼 필요가 없는 경우에는 뷰파인더에 공급되는 전원을 차단시켜 전력을 절감하는 스위칭 수단을 구비하여 된 뷰파인더 전력 절감회로에 있다.A feature of this invention for achieving this object is a camcorder comprising a video processing unit for recording and reproducing a subject, and a viewfinder for receiving a video output signal of the image processing unit to view a subject to be recorded. If there is no need to look at the view of the viewfinder screen is in the viewfinder power saving circuit provided with a switching means to cut the power supply to the viewfinder to save power.

이하, 이 고안에 따른 실시예를 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, an embodiment according to the present invention will be described in detail.

제2도는 이 고안에 따른 캠코더의 블럭도로서, 캠코더를 사용하여 소정의 물체를 촬영할 경우 촬영하고자 하는 피사체가 나타나는 뷰파인더(10)의 신호전송라인(a)을 통해 뷰파인더(10)에 나타난 피사체의 영상신호를 받아 처리하는 영상처리부(20)가 연결되고 상기 뷰파인더(10)와 영상처리부(20)의 전원단자 사이에는 상기 뷰파인더(10)에 공급되는 전원을 제어하는 스위칭수단(30)이 연결되어 이루어진다. 이때, 상기 스위칭수단(30)은 온.오프 기능을 갖는 스위치(SW1)로 되어있다.2 is a block diagram of a camcorder according to the present invention, which is displayed in the viewfinder 10 through a signal transmission line a of the viewfinder 10 in which a subject to be photographed appears when a predetermined object is photographed using the camcorder. An image processing unit 20 for receiving and processing an image signal of a subject is connected, and switching means 30 for controlling the power supplied to the viewfinder 10 between the viewfinder 10 and the power terminal of the image processing unit 20. ) Is connected and made. At this time, the switching means 30 is a switch SW1 having an on / off function.

제3도는 이 고안에 따른 또다른 실시예를 나타낸 캠코더의 블럭도로서, 제2도와 마찬가지로 뷰파인더(10)와 상기 뷰파인더(10)에 나타난 피사체의 영상신호를 전송하는 신호전송라인(a)과 상기 신호전송라인(a)을 통해 전송된 영상신호를 받아 처리하는 영상처리부(20)와 상기 뷰파인더(10)에 공급되는 전원을 제어하는 스위칭수단(30)으로 이루어진다. 이때, 스위칭수단(30)은 한 입력단에는 상기 영상처리부(20)의 전원단이 연결되고 또다른 입력단에는 상기 영상처리부(20)의 마이콤단이 연결되는 AND게이트(A1)와 AND게이트(A1)의 출력측에 연결되어 마이콤의 제어신호에 따라 온.오프되어 상기 뷰파인더(10)에 공급되는 전원을 제어하는 전계효과 트랜지스터(FET1)로 이루어진다.FIG. 3 is a block diagram of a camcorder showing another embodiment according to the present invention. As shown in FIG. 2, a signal transmission line (a) for transmitting an image signal of a subject shown in the viewfinder 10 and the viewfinder 10 is shown. And an image processor 20 for receiving and processing the image signal transmitted through the signal transmission line (a) and a switching means 30 for controlling the power supplied to the viewfinder 10. In this case, the switching means 30 is an AND gate (A1) and AND gate (A1) is connected to the power terminal of the image processing unit 20 is connected to one input terminal and the microcomputer terminal of the image processing unit 20 is connected to another input terminal. It is connected to the output side of the field effect transistor (FET1) is turned on / off according to the control signal of the microcomputer to control the power supplied to the viewfinder (10).

이때, 상기 전계효과 트랜지스터(FET1)의 드레인측은 상기 영상처리부(20)의 전원(Vcc)단에 연결되고 상기 전계효과 트랜지스터(FET1)의 소오스측은 상기 뷰파인더(10)의 전원단에 연결되어 구성된다.In this case, the drain side of the field effect transistor FET1 is connected to the power supply Vcc terminal of the image processing unit 20 and the source side of the field effect transistor FET1 is connected to the power supply terminal of the viewfinder 10. do.

이와 같이 구성된 이 고안은 촬영자가 뷰파인더 화면을 볼 필요가 없는 경우 즉, 한부분을 장시간 녹화하는 경우, 꽃이 만개하는 과정등의 시간차 간격을 두고 촬영하는 인터발 녹화시에 촬영을 하지않는 경우, 리모콘을 이용하여 녹화하는 경우, 캠코더의 모드가 비데오 모드인 경우에 뷰파인더에 공급되는 전원을 차단하기 위한 것으로서, 제2도는 촬영자가 뷰파인더를 볼 필요가 없을때에 스위칭 수단(30)의 스위치(SW1)를 오프시키면 뷰파인더(10)에 공급되는 전원이 차단된다.In this way, the present invention does not require the photographer to look at the viewfinder screen, i.e. when recording a part for a long time, when shooting at interval intervals such as the process of blooming flowers, and when not shooting during interval recording. When recording using the remote control, the power supply to the viewfinder is cut off when the mode of the camcorder is the video mode, and FIG. 2 is a switch of the switching means 30 when the photographer does not need to see the viewfinder. When SW1 is turned off, the power supplied to the viewfinder 10 is cut off.

한편, 제3도는 리모콘을 이용하여 촬영하는 경우로서 기존 리모콘에 뷰파인더 전원차단 단자를 추가하여 촬영자가 뷰파인더(10)를 볼 필요가 없을때에는 리모콘에 추가된 뷰파인더 전원차단 단자를 통하여 로우신호를 출력시키면 상기 영상처리부(20)의 마이콤단을 통해 AND게이트(A1)에 로우신호가 입력된다. 한편, 상기 영상처리부(20)의 전원단이 연결된 AND게이트(A1)의 또다른 입력은 캠코더가 파워 온일때에는 항상 하이이므로 상기 AND게이트(A1)의 출력은 마이콤단이 로우신호이므로 로우신호가 출력된다. 따라서, 전계효과 트랜지스터(FET1)가 오프되고 뷰파인더(10)에 공급되는 전원이 차단된다.On the other hand, Figure 3 is a case of shooting by using the remote control when the viewfinder power off terminal is added to the existing remote control when the photographer does not need to see the viewfinder 10 through the viewfinder power off terminal added to the remote control low signal When the signal is output, a low signal is input to the AND gate A1 through the microcomputer terminal of the image processor 20. Meanwhile, another input of the AND gate A1 to which the power terminal of the image processor 20 is connected is always high when the camcorder is powered on, so the output of the AND gate A1 is a low signal because the microcomputer terminal is a low signal. do. Thus, the field effect transistor FET1 is turned off and the power supplied to the viewfinder 10 is cut off.

이상에서와 같이 이 고안은 보통 뷰파인더에는 160mA정도의 전류가 흐르므로 106mA × 5V = 800mW 정도의 전력절감이 가능하고 더불어, 뷰파인더의 수명과 밧데리의 사용시간을 연장시키는 효과가 있다.As mentioned above, this design can save about 106mA × 5V = 800mW, and extends the life of the viewfinder and the battery, since current of about 160mA flows in the viewfinder.

Claims (1)

캠코더의 뷰파인더에 공급되는 전원을 제어하기 위한 회로에 있어서, 상기 뷰파인더에 소정의 전원을 공급하기 위한 전원공급부; 상기 전원공급부에서 공급되는 전원과 소정의 제어신호를 입력으로하여 논리곱하는 AND 게이트와, 상기 AND 게이트의 출력값을 게이트단으로 수신하며, 드레인단과 소스단이 각각 상기 전원공급부와 상기 뷰파인더에 연결된 전계효과트랜지스터로 이루어진 스위칭수단; 재생 및/또는 촬영모드에서 사용자의 요구에 부응하여, 상기 뷰파인더에 인가되는 전원공급을 차단시키기 위한 전원차단신호를 발생하는 리모콘; 상기 리모콘에서 발생된 전원차단신호에 근거하여 로직로우의 제어신호를 발생하여 상기 스위칭수단의 AND 게이트단에 공급하는 마이컴을 포함하는 것을 특징으로 하는 뷰파인더 전력 절감회로.A circuit for controlling power supplied to a viewfinder of a camcorder, comprising: a power supply for supplying predetermined power to the viewfinder; An AND gate multiplying by inputting power supplied from the power supply and a predetermined control signal, and an output value of the AND gate are received at a gate end, and an electric field connected to the power supply and the viewfinder is respectively connected to a drain end and a source end. Switching means consisting of an effect transistor; A remote controller for generating a power down signal for interrupting the power supply applied to the viewfinder in response to a user's request in a reproduction and / or photographing mode; And a microcomputer for generating a logic low control signal based on the power cutoff signal generated by the remote controller and supplying the control signal to the AND gate terminal of the switching means.
KR2019910014877U 1991-09-12 1991-09-12 Circuit for reducing power consumption of viewfinder KR0124851Y1 (en)

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KR2019910014877U KR0124851Y1 (en) 1991-09-12 1991-09-12 Circuit for reducing power consumption of viewfinder

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Application Number Priority Date Filing Date Title
KR2019910014877U KR0124851Y1 (en) 1991-09-12 1991-09-12 Circuit for reducing power consumption of viewfinder

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KR0124851Y1 true KR0124851Y1 (en) 1998-10-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101184694B1 (en) * 2005-08-18 2012-09-20 삼성전자주식회사 Apparatus and method for processing digital image

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101184694B1 (en) * 2005-08-18 2012-09-20 삼성전자주식회사 Apparatus and method for processing digital image

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KR930007749U (en) 1993-04-26

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