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KR900010563Y1 - Recording and reproducing apparatus of video cassette recorder for inserting video signal - Google Patents

Recording and reproducing apparatus of video cassette recorder for inserting video signal

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Publication number
KR900010563Y1
KR900010563Y1 KR2019870014803U KR870014803U KR900010563Y1 KR 900010563 Y1 KR900010563 Y1 KR 900010563Y1 KR 2019870014803 U KR2019870014803 U KR 2019870014803U KR 870014803 U KR870014803 U KR 870014803U KR 900010563 Y1 KR900010563 Y1 KR 900010563Y1
Authority
KR
South Korea
Prior art keywords
recording
switch
fixed terminal
switching switch
screen
Prior art date
Application number
KR2019870014803U
Other languages
Korean (ko)
Other versions
KR890005601U (en
Inventor
윤종웅
Original Assignee
주식회사 금성사
최근선
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Priority to KR2019870014803U priority Critical patent/KR900010563Y1/en
Publication of KR890005601U publication Critical patent/KR890005601U/en
Application granted granted Critical
Publication of KR900010563Y1 publication Critical patent/KR900010563Y1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

내용 없음.No content.

Description

화면삽입용 비디오 카세트 레코더의 녹화재생장치Recording and playback device of video cassette recorder for screen insertion

제1도는 종래의 화면삽입용 비디오 카세트 레코더의 녹화 재생장치의 회로도.1 is a circuit diagram of a recording / playback apparatus of a conventional video cassette recorder for picture insertion.

제2a-c도는 종래 및 본 고안의 모드절환에 따른 입출력 영상신호를 보인 설명도, d도는 본 고안의 재생된 화면에 PIP 쉬프트키를 사용한 출력의 일예를 보인 설명도.Figure 2a-c is an explanatory view showing the input and output video signal according to the mode switching of the prior art and the present invention, d is an explanatory view showing an example of the output using the PIP shift key on the reproduced screen of the present invention.

제3도는 본 고안의 화면삽입용 비디오 카세트 레코더의 녹화재생장치의 회로도.3 is a circuit diagram of a recording / playback apparatus of a video cassette recorder for screen insertion according to the present invention.

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

10 : 녹화계 20 : 재생계10: recording system 20: playback system

CH1 : 영상헤드 SW1, SW10 : 라인/튜너 영상절환스위치CH1: Video head SW1, SW10: Line / tuner video switch

SW2, SW30-SW33 : 기록/재생모드영상절환스위치SW2, SW30-SW33: Record / Playback Mode Video Switch

SW4, SW20 : PIP영상절환스위치SW4, SW20: PIP Video Switch

본 고안은 픽쳐인픽쳐(Picture in picture) (이하, PIP라 함)즉, 모화면 신호에 자화면 신호를 삽입하는 화면삽입용 비디오 카세트 레코더에 있어서, PIP모드를 선택하여 화면에 출력되는 모, 자화면의 영상신호를 녹화 및 재생할 경우에 이를 그대로 녹화 및 재생할 수 있게하고, 그 재생된 화면에 다시 PIP쉬프트(shift)키를 사용하여 자화면을 삽입할 수 있게 한 화면삽입용 비디오 카세트 레코더의 녹화재생장치에 관한 것이다.The present invention is a picture in picture (hereinafter referred to as a PIP), that is, a video cassette recorder for inserting a sub picture signal into a mother screen signal, wherein the PIP mode is selected and output to the screen. When the video signal of the own screen is recorded and played back, it can be recorded and played back as it is, and the video cassette recorder for screen insertion that allows the inserted back screen to be inserted using the PIP shift key. It relates to a recording and playback device.

종래의 PIP용 녹화재생장치는 제1도에 도시한 바와 같이 일측 및 타측고정단자 (Ll)(T1)에 라인 및 튜너영상신호(LVl)(TVI)가 인가되는 라인/튜너영상절환스위치 (SW1)를 타측고정단자(V2)에 영상헤드(CH1)가 접속된 기록/재생(EE/VV)모드영상절환스위치 (SW2)의 일측고정단자(E2)에 접속하고, 그 접속점은 일측고정단자(L3)에 상기 라인영상신호(LV1)가 인가되는 절환 스위치(SW3)의 타측고정단자(LT3)에 접속하여 상기 기록/재생모드영상절환스위치(SW2) 및 스위치(SW3)의 가동단자를 PIP영상절환스위치(SW4)의 자화면 및 모화면고정단자(S4) (M4)에 각기 접속하며, 그의 가동단자를 텔레비전 수상기에 접속하여 구성한 것으로, 이 종래 PIP용 녹화재생장치의 동작과정을 설명한다.In the conventional PIP recording / reproducing apparatus, as shown in FIG. 1, a line / tuner image switching switch SW1 to which a line and a tuner image signal LVl (TVI) are applied to one side and the other fixed terminal Ll (T1). ) Is connected to one fixed terminal (E2) of the recording / playback (EE / VV) mode image switching switch (SW2) in which the image head (CH1) is connected to the other fixed terminal (V2), and the connection point is connected to the one fixed terminal ( L3) is connected to the other fixed terminal LT3 of the switching switch SW3 to which the line image signal LV1 is applied, and the movable terminal of the recording / playback mode image switching switch SW2 and the switch SW3 is a PIP image. The master screen and mother screen fixed terminal S4 (M4) of the switching switch SW4 are connected to each other, and their movable terminals are connected to a television receiver, and the operation process of the conventional PIP recording / playback apparatus will be described.

라인/튜너영상절환스위치(SW1)가 타측고정단자(T1)에 단락되고, 절환스위치 (SW3)가 일측고정단자(L3)에 단락된 상태에서 기록모드를 선택하여 기록/재생모드영상절환스위치(SW2)가 일측단자(T2)에 단락되면, 이때 제2a도 도시한 바와 같은 튜너 영상신호(TVI)가 상기 스위치(SW1) (SW2)를 통해 PIP영상절환스위치(SW4)의 모화면고정단자(M4)에 인가됨과 아울러 상기 튜너 영상신호(TV1)는 Y/C신호처리회로 (도면에 도시하지 않았음)를 통해 변조된 후 영상헤드(CH1)에 인가되어 녹화된다. 또한, 이때 제2b도에 도시한 바와 같은 라인영상신호(LV1)는 절환스위치 (SW3)를 통해 PIP영상절환스위치(SW4)의 자화면 고정단자(S4)에 인가된다.When the line / tuner video switching switch SW1 is shorted to the other fixed terminal T1 and the switching switch SW3 is shorted to one fixed terminal L3, the recording mode is selected and the recording / playback mode video switching switch ( When SW2 is shorted to one side terminal T2, at this time, the tuner video signal TVI as shown in FIG. 2A is connected to the mother screen fixed terminal of the PIP video switching switch SW4 through the switch SW1 SW2. In addition to the M4), the tuner video signal TV1 is modulated by a Y / C signal processing circuit (not shown) and then applied to the video head CH1 for recording. In addition, the line image signal LV1 as shown in FIG. 2B is applied to the magnetic screen fixed terminal S4 of the PIP image switching switch SW4 through the switching switch SW3.

이와 같은 상태에서 PIP모드가 아닌 정상상태를 선택할 경우에는 상기 PIP영상절환 스위치(SW4)의 가동단자가 모화면 고정단자(M4)에 단락된 상태를 유지하므로 상기 스위치(SW2)를 통한 튜너 영상신호(TVI)가 그 스위치(SW4)를 통해 텔레비젼 수상기로 출력되어 그 텔레비젼 수상기의 화면에 표시된다.In this state, if the normal state other than the PIP mode is selected, the movable terminal of the PIP image switching switch SW4 is kept short-circuited to the parent screen fixed terminal M4, so that the tuner image signal through the switch SW2. TVI is outputted to the television receiver via the switch SW4 and displayed on the screen of the television receiver.

한편, 상기와 반대로 PIP모드를 선택할 경우에는 상기 PIP영상절환스위치 (SW4)의 가동단자가 그의 자화면, 모화면고정단자(S4)(M4)에 적절히 스위칭되어 그 고정단자(S4), (M4)에 인가되는 라인, 튜너영상신호(LVI), (TVI)가 제2c도에 도시한 바와 같이 텔레비전 수상기로 출력되고, 따라서 이때 튜너영상신호(TVI)가 모화면으로 표시됨과 아울러 라인영상신호(LVI)가 자화면으로 표시된다.On the other hand, when the PIP mode is selected in contrast to the above, the movable terminal of the PIP image switching switch SW4 is appropriately switched between its own screen and the parent screen fixed terminal S4 (M4), and the fixed terminals S4 and M4. Line, tuner video signal (LVI), (TVI) is output to the television receiver as shown in Fig. 2c, whereby the tuner video signal (TVI) is displayed on the mother screen and the line video signal ( LVI) is displayed in subscreen.

그러나, 상기와 반대로 재생모드를 선택하여 재생할 경우 즉, 영상헤드(CH1)가 비디오 테이프에서 녹화된 영상 신호를 재생할 경우에는 그 재생되는 영상신호는 Y/C신호처리회로에서 복조되고, 이때 기록/재생모드영상절환스위치(SW2)의 가동단자가 타측고정단자(V2)에 단락되므로 상기 영상헤드(CH1)에서 재생되어 복조된 신호는 스위치(SW2)를 통해 PIP영상절환스위치(SW4)의 모화면고정단자(M4)에 인가되고, 이때 PIP모드가 아닌 정상상태를 선택할 경우에는 상기 PIP영상절환스위치(SW4)의 가동단자가 모화면고정단자(M4)에 단락 되므로 상기에서 녹화된 제2a도에 도시한 바와 같은 튜너 영상신호(TVI)만이 재생된 후, 상기 스위치(SW4)를 통해 텔레비젼 수상기의 화면에 표시된다.However, in contrast to the above, when the playback mode is selected and played back, that is, when the video head CH1 plays back a video signal recorded on a video tape, the played back video signal is demodulated by a Y / C signal processing circuit. Since the movable terminal of the playback mode image switching switch SW2 is short-circuited to the other fixed terminal V2, the signal reproduced and demodulated by the image head CH1 is the mother screen of the PIP image switching switch SW4 through the switch SW2. When the terminal is applied to the fixed terminal M4 and a normal state other than the PIP mode is selected, the movable terminal of the PIP image switching switch SW4 is short-circuited to the mother screen fixed terminal M4. Only the tuner video signal TVI as shown is reproduced and then displayed on the screen of the television receiver via the switch SW4.

이상에서 설명한 바와 같이 종래의 PIP용 녹화재생장치는 모화면에 자화면이 동시에 출력되는 PIP모드로 선택하여 영상신호를 녹화할 경우에 자화면의 영상신호는 녹화되지 않고 모화면의 영상신호는 녹화되지 않고 모화면의 영상신호만이 녹화됨에 따라 PIP모드일 경우에 녹화되는 영상신호의 화면과 그때 표시되는 영상신호의 화면이 일치하지 않게되는 결함이 있었다.As described above, in the conventional PIP recording / reproducing apparatus, when the video signal is recorded by selecting the PIP mode in which the child screen is simultaneously output on the mother screen, the video signal of the child screen is not recorded and the video signal of the mother screen is recorded. Since only the video signal of the mother screen is recorded, the screen of the video signal recorded in the PIP mode and the screen of the video signal displayed at that time do not coincide.

본 고안은 이와 같은 종래의 결함을 감안하여 PIP모드를 선택하여 녹화할 경우에 그때 텔레비전 수상기의 화면에 표시되는 모화면 및 자화면의 영상신호를 녹화하여 재생시에 모화면 및 자화면의 영상신호를 재생하고, 그 재생된 모화면 및 자화면의 영상신호에 다시 PIP쉬프트키를 사용하여 자화면을 삽입할 수 있게 안출한 것으로, 이를 첨부된 제3도의 도면에 의하여 상세히 설명하면 다음과 같다.In consideration of such a conventional defect, the present invention records the video signal of the mother screen and the child screen displayed on the screen of the television receiver at the time of selecting and recording the PIP mode. After reproducing, the PIP shift key can be inserted into the reproduced mother screen and the sub-screen video signal, which will be described in detail with reference to FIG.

제3도는 본 고안의 PIP용 녹화재생장치의 회로도로서 이에 도시한 바와 같이 일측, 타측고정단자(L10)(T10)에 라인, 튜너영상신호(LV1)(TVI)가 각기 인가되는 라인/튜너영상절환스위치(SW10)를 기록/재생모드영상절환스위치(SW30)의 일측고정단자(E3O)에 접속하여, 그 스위치(SW30)를 자화면고정단자(S20)에 상기 라인영상신호(LVI)가 인가되는 PIP영상절환스위치(SW20)의 모화면고정단자(M20)에 접속하고, 상기 스위치(SW20)는 기록/재생모드절환스위치(SW3l)에 접속하여, 그의 일측고정단자(E3l)를 기록/재생모드절환스위치(SW32)의 일측고정단자(E32)에 접속하며, 상기 기록/재생모드절환스위치(SW32)는 기록/재생모드절환스위치(SW33)에 접속함과 아울러 녹화계(10)를 통해 영상헤드(CH1)에 접속하고, 그 접속점을 재생계(20)를 통해 상기 기록/재생모드절환스위치(SW32)의 타측고정단자(V32)에 접속하고, 상기 기록/재생모드절환스위치(SW33)의 타측고정단자(V33)는 상기 기록/재생모드절환스위치(SW30)의 타측고정단자(V30)에 접속함과 아울러 그 스위치 (SW33)의 일측고정단자(E33)는 상기 기록/재생모드절환스위치 (SW3l)의 타측고정단자(V3l)와 함께 텔레비전 수상기에 접속하여 구성한 것으로, 상기에서 기록/재생모드절환스위치 (SW30-SW33)는 기록모드선택시에 그의 일측고정단자(E30-E33)에 단락되고, 재생모드선택시에 그의 타측고정단자(V30-V33)에 단락되게 되어있다.3 is a circuit diagram of a PIP recording / reproducing apparatus according to the present invention. As shown therein, a line and a tuner image to which a line and a tuner image signal LV1 (TVI) are applied to one side and the other fixed terminal L10 (T10), respectively. The switching switch SW10 is connected to one fixed terminal E3O of the recording / playback mode image switching switch SW30, and the switch SW30 is applied to the fixed screen terminal S20 of the line image signal LVI. Is connected to the mother screen fixed terminal M20 of the PIP image switching switch SW20, and the switch SW20 is connected to the recording / playback mode switching switch SW3l to record / reproduce the one fixed terminal E3l thereof. It is connected to one fixed terminal E32 of the mode switching switch (SW32), the recording / playback mode switching switch (SW32) is connected to the recording / playback mode switching switch (SW33) and the image through the recording system 10 Is connected to the head CH1, and the connection point is fixed to the other side of the recording / playback mode switching switch SW32 via the reproducing system 20; The other fixed terminal V33 of the recording / playback mode switching switch SW33 is connected to the other fixed terminal V30 of the recording / playback mode switching switch SW30, and is connected thereto. One fixed terminal (E33) of (SW33) is configured by connecting to a television receiver together with the other fixed terminal (V3l) of the recording / playback mode switching switch (SW3l), the recording / playback mode switching switch (SW30-SW33) Is short-circuited to its one fixed terminal (E30-E33) when the recording mode is selected, and short-circuited to its other fixed terminal (V30-V33) when the playback mode is selected.

이와 같이 구성된 본 고안의 작용효과를 제2도 및 제3도에 의하여 상세히 설명하면 다음과 같다.If described in detail the effects of the present invention configured as described in Figures 2 and 3 as follows.

라인/튜너영상절환스위치(SW10)의 가동단자가 타측고정단자(T10)에 단락되고, 기록모드를 선택하여 기록/재생모드영상절환스위치(SW30-SW33)의 가동단자가 일측고정단자(E30-E33)에 단락되면, 제2a도에 도시한 바와 같은 튜너 영상신호 (TVI)는 상기 스위치(SW10) (SW30)를 통해 PIP영상절환스위치(SW20)의 모화면고정단자(M20)에 인가되고, 또한 이때 제2b도에 도시한 바와같은 라인영상신호(LVI)는 상기 PIP영상절환스위치(SW20)의 자화면고정단자(S20)에 인가된다.The movable terminal of the line / tuner image switching switch SW10 is short-circuited to the other fixed terminal T10, and the recording terminal is selected so that the movable terminal of the recording / playback mode image switching switch SW30-SW33 is one-side fixed terminal E30-. In the case of E33), the tuner video signal TVI as shown in FIG. 2A is applied to the mother screen fixed terminal M20 of the PIP video switching switch SW20 through the switch SW10 (SW30), At this time, the line image signal LVI as shown in FIG. 2B is applied to the magnetic screen fixed terminal S20 of the PIP image switching switch SW20.

이와 같은 상태에서 PIP모드가 아닌 정상상태를 선택할 경우에는 PIP영상절환스위치(SW20)의 가동단자가 모화면 고정단자(M20)에 단락된 상태를 유지하고, 또한 이때 상기의 설명과 같이 기록/재생모드영상절환스위치(SW31-SW33)의 가동 단자가 일측고정단자(E31-E33)에 단락되어 있으므로 상기와 같이 PIP영상절환 스위치 (SW20)의 모화면고정단자(M20)에 인가되는 튜너영상신호(TVI)가 스위치(SW20) 및 상기 스위치(SW31-SW33)를 통해 텔레비전 수상기로 출력되어 표시된다.In this state, when the normal state other than the PIP mode is selected, the movable terminal of the PIP image switching switch SW20 remains short-circuited to the parent screen fixed terminal M20, and at this time, the recording / reproducing as described above. Since the movable terminal of the mode image switching switch SW31-SW33 is short-circuited to one fixed terminal E31-E33, the tuner image signal applied to the mother screen fixed terminal M20 of the PIP image switching switch SW20 as described above. The TVI is outputted and displayed on the television receiver through the switch SW20 and the switches SW31-SW33.

또한, 이때 상기 기록/재생모드영상절환스위치(SW32)를 통하는 튜너영상신호는 녹화계(10)를 통해 영상헤드(CH1)에 인가되어 녹화된다.In addition, at this time, the tuner video signal through the recording / playback mode video switching switch SW32 is applied to the video head CH1 through the recording system 10 to be recorded.

한편, 상기와 반대로 PIP모드를 선택할 경우에는 상기 PIP영상절환스위치 (SW20)의 가동단자가 그의 모화면, 자화면 고정단자(M20)＜(S20)에 적절히 스위칭되어 그 고정단자(M20)(S20)에 인가되는 튜너, 라인 영상신호(TVI)(LVI)가 제2c도에 도시한 바와 같이 출력되고, 이와 같이 출력되는 튜너, 라인영상신호(TVI)(LVI)는 기록/재생모드영상절환스위치(SW3l-SW33)를 통해 텔레비젼 수상기로 출력되며, 이에따라 튜너 영상신호(TVI)가 모화면 으로 표시되는 중에 라인영상신호(LVI)가 자화면으로 표시된다.On the other hand, when the PIP mode is selected in contrast to the above, the movable terminal of the PIP image switching switch (SW20) is appropriately switched to its parent screen and the sub-screen fixed terminal (M20) <(S20) so that the fixed terminal (M20) (S20). Tuner, line video signal (TVI) (LVI) applied to the output as shown in Fig. 2c, and the tuner, line video signal (TVI) (LVI) output in this way is a recording / playback mode image switching switch It is output to the television receiver via SW3l-SW33, and accordingly, the line image signal LVI is displayed on the child screen while the tuner image signal TVI is displayed on the parent screen.

또한, 이때 상기 기록/재생모드절환스위치(SW32)를 통하는 튜너 영상신호 (TVI)및 라인영상신호(LVI)는 녹화계(10)를 통해 영상헤드(CH1)에 인가되어 녹화된다.In addition, at this time, the tuner video signal TVI and the line video signal LVI through the recording / playback mode switching switch SW32 are applied to the video head CH1 through the recording system 10 to be recorded.

결국, 이때 녹화되는 신호는 화면에 표시되는 신호와 동일하게 튜너 영상신호 (TVI)가 모화면으로 녹화되는 도중에 라인영상신호(LVI)가 자화면으로 삽입되어 녹화된다.As a result, the recorded signal is recorded with the line video signal LVI inserted into the child screen while the tuner video signal TVI is recorded on the mother screen in the same manner as the signal displayed on the screen.

한편, 재생모드를 선택하여 기록/재생모드영상절환스위치(SW30-SW33)의 가동단자가 타측고정단자(V30-V33)에 단락되면, 영상헤드(CH1)에서 재생되는 영상신호는 재생계(20)를 통하고 기록/재생모드영상절환스위치(SW32) (SW33) (SW30)를 통해 PIP영상절환스위치 (SW20)의 모화면고정단자(M20)에 인가된다.On the other hand, when the play mode is selected and the movable terminals of the recording / playback mode video switching switches SW30-SW33 are short-circuited to the other fixed terminals V30-V33, the video signal reproduced by the video head CH1 is reproduced. And a recording / playback mode image switching switch (SW32) (SW33) (SW30) to the mother screen fixed terminal (M20) of the PIP image switching switch (SW20).

이때 PIP모드를 선택하지 않았을 경우 즉, 정상재생일 경우에는 그 PIP영상절환스위치(SW20)의 가동단자가 모화면고정단자(M20)에 단락된 상태를 유지하므로 그 모화면고정단자(M20)에 상기와 같이 인가되는 재생신호가 그 스위치(SW20)및 기록/재생모드영상절환스위치(SW31)를 통해 탤레비젼 수상기로 출력된다.In this case, when the PIP mode is not selected, that is, during normal playback, the movable terminal of the PIP image switching switch SW20 is kept short-circuited to the parent screen fixing terminal M20. The reproduction signal applied as is outputted to the TV receiver via the switch SW20 and the recording / playback mode image switching switch SW31.

따라서, 이때 재생되는 신호가 상기의 설명과 같이 튜너 영상신호(TVI)만을 녹화한 신호이면 그 튜너영상신호(TVI)가 텔레비전 수상기의 화면에 나타나고, 재생되는 신호가 튜너영상신호(TVI)에 라인영상신호(LVI)를 삽입하여 녹화한 영상신호이면 튜너영상신호(TVI)가 모화면으로 표시되는 중에 라인영상신호(LVI)가 자화면으로 표시된다.Therefore, if the signal to be reproduced is a signal for recording only the tuner image signal TVI as described above, the tuner image signal TVI appears on the screen of the television receiver, and the reproduced signal is lined with the tuner image signal TVI. In the case of the video signal recorded by inserting the video signal LVI, the line video signal LVI is displayed on the child screen while the tuner video signal TVI is displayed on the mother screen.

한편, PIP모드를 선택할 경우에는 상기 PIP영상절환스위치(SW20)의 가동단자가 그의 모화면, 자화면고정단자(M20) (S20)에 적절히 스위칭되고, 이에따라 그의 모화면고정단자(M20)에 인가되는 재생신호에 라인영상신호(LVI)가 삽입되어 출력되고, 이 출력신호는 기록/재생모드영상절환스위치(SW3l)를 통해 텔레비젼 수상기에 표시된다. 즉, 이때 PIP영상절환스위치(SW20)의 모화면고정단자(M20)에 인가되는 재생신호가 제2c도에 도시한 바와 같이 튜너 영상신호(TVI)에 라인영상신호(LVI)가 삽입된 신호이면, 자화면위치변동 PIP쉬프트키를 눌러 자화면 영상신호의 위치를 변경함에 따라 제2d도에 도시한 바와같이 라인영상신호(LVI)가 다시 자화면으로 삽입되어 탤레비젼 수상기에 표시되어진다.On the other hand, when the PIP mode is selected, the movable terminal of the PIP image switching switch SW20 is appropriately switched to its mother screen and the mother screen fixing terminal M20 (S20), and accordingly applied to its mother screen fixing terminal M20. The line video signal LVI is inserted into the reproduced signal to be outputted, and this output signal is displayed on the television receiver via the record / playback mode image switching switch SW3l. That is, if the reproduction signal applied to the mother screen fixed terminal M20 of the PIP image switching switch SW20 is a signal in which the line image signal LVI is inserted into the tuner image signal TVI as shown in FIG. As the position of the sub picture signal is changed by pressing the sub picture position shift PIP shift key, the line video signal LVI is inserted into the sub picture again and displayed on the TV set as shown in FIG. 2D.

이상에서 설명한 바와 같이 본 고안은 PIP모드를 선택하여 녹화할 경우에 그때 표시되는 모화면 및 자화면의 영상신호를 녹화하여 재생시에 그 모화면 및 자화면의 영상신호를 재생하게 되므로 녹화시 및 재생시에 텔레비젼 수상기의 화면이 일치하게 되고, 또한 상기 재생신호에 PIP쉬프트키를 사용하여 다시 자화면을 삽입시킬 수 있게 되므로 더욱 다양한 PIP기능을 기대할 수 있는 효과가 있게된다.As described above, when the PIP mode is selected and recorded, the present invention records the video signal of the mother screen and the child screen displayed at that time, and reproduces the video signals of the mother screen and the child screen at the time of recording and playback. Since the screen of the television receiver is matched, and the child screen can be inserted again by using the PIP shift key in the reproduction signal, more various PIP functions can be expected.

Claims (1)

고정단자(L10) (T10)에 라인, 튜너 영상신호(LVI) (TVI)가 인가되는 라인/튜너영상절환스위치(SW10)를 기록/재생모드영상절환스위치(SW30)의 일측고정단자 (E30)에 접속하여, 그 스위치(SW30)를 자화면고정단자(S20)에 상기 라인영상신호 (LVI)가 인가되는 PIP영상절환스위치(SW20)의 모화면고정단자(M20)에 접속하고, 상기 스위치(SW20)는 기록/재생모드영상절환스위치(SW31)에 접속하여 그의 일측고정단자(E31)를 기록/재생모드영상절환스위치(SW32)의 일측고정단자(E32)에 접속하며, 상기 스위치(SW32)는 기록/재생모드영상절환스위치(SW33)에 접속함과 아울러 녹화계(10)를 통해 영상헤드(CH1)에 접속하여, 그 접속점을 재생계(20)를 통해 상기 스위치(SW32)의 특측고정단자(V32)에 접속하고, 상기 스위치(SW33) 의 타측고정단자(V33)는 상기 스위치(SW30)의 타측고정단자(V30)에 접속하며, 그 스위치(SW30)의 일측고정단자(E30)는 상기 스위치(SW3l)의 타측고정단자(V3l)와 함께 텔레비젼 수상기에 접속하여 구성된 것을 특징으로 하는 화면삽입용 비디오 카세트 레코더의 녹화재생장치.Line / tuner video switching switch SW10 to which line and tuner video signals LVI and TVI are applied to the fixed terminals L10 and T10. One fixed terminal E30 of the recording / playback mode video switching switch SW30. The switch SW30 is connected to the mother screen fixed terminal M20 of the PIP image switching switch SW20 to which the line image signal LVI is applied to the magnetic screen fixed terminal S20. SW20 is connected to the recording / playback mode video switching switch SW31 to connect its one fixed terminal E31 to one side fixed terminal E32 of the recording / playback mode video switching switch SW32, and the switch SW32. Is connected to the recording / playback mode image switching switch SW33 and to the image head CH1 via the recording system 10, and the connection point is connected to the special fixing of the switch SW32 through the reproduction system 20. Is connected to the terminal V32, and the other fixed terminal V33 of the switch SW33 is connected to the other fixed terminal V30 of the switch SW30, Fixing one side of the switch (SW30) terminal (E30) is a recording and reproducing apparatus of a video cassette recorder for on-screen insert, characterized in that is configured to connect to the television receiver together with the other fixed terminal (V3l) of the switch (SW3l).
KR2019870014803U 1987-08-31 1987-08-31 Recording and reproducing apparatus of video cassette recorder for inserting video signal KR900010563Y1 (en)

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KR900010563Y1 true KR900010563Y1 (en) 1990-11-22

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