JPH0186785U - - Google Patents
Info
- Publication number
- JPH0186785U JPH0186785U JP18209787U JP18209787U JPH0186785U JP H0186785 U JPH0186785 U JP H0186785U JP 18209787 U JP18209787 U JP 18209787U JP 18209787 U JP18209787 U JP 18209787U JP H0186785 U JPH0186785 U JP H0186785U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- input
- input terminal
- switching
- luminance signal
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Color Television Systems (AREA)
Description
第１図は本考案入力信号切換回路の一例を示す
回路図、第２図は従来の入力信号切換回路の一例
を示す回路図である。
符号の説明、１……入力信号切換回路、２，３
，４……入力部、５ｂ，５ｃ……複合信号入力端
子、６ａ，６ｂ……輝度信号入力端子、７ａ，７
ｂ……色信号入力端子、８……分離回路、９……
輝度信号出力端子、１０……色信号出力端子、１
１……切換手段、１３ａ……第１の切換接点、１
３ｂ……第２の切換接点、１４ｂ，１４ｃ……共
通の接点。
FIG. 1 is a circuit diagram showing an example of an input signal switching circuit of the present invention, and FIG. 2 is a circuit diagram showing an example of a conventional input signal switching circuit. Explanation of symbols, 1... Input signal switching circuit, 2, 3
, 4... Input section, 5b, 5c... Composite signal input terminal, 6a, 6b... Luminance signal input terminal, 7a, 7
b...Color signal input terminal, 8...Separation circuit, 9...
Luminance signal output terminal, 10...Color signal output terminal, 1
1...Switching means, 13a...First switching contact, 1
3b...Second switching contact, 14b, 14c...Common contact.
Claims (1)
も１つが輝度信号及び色信号が混在した複合信号
が入力される複合信号入力端子と輝度信号及び色
信号が分離された状態で各別に入力される輝度信
号入力端子と色信号入力端子とを有すると共に、
複合信号を輝度信号と色信号に分離する分離回路
と、輝度信号を出力する輝度信号出力端子と、色
信号を出力する色信号出力端子と、上記出力端子
と前記複数の入力部との間の接続状態を切り換え
るための切換手段とを備えた入力信号切換回路で
あつて、 前記切換手段は、複合信号入力端子と輝度信号
又は色信号のいずれか一方の入力端子に共通の接
点と分離回路との間に介挿された第１の切換接点
と、輝度信号又は色信号のいずれか他方の入力端
子と該入力端子に対応した出力端子との間に介挿
されかつ上記第１の切換接点と連動する第２の切
換接点とを有し、 前記２つの出力端子を分離回路と接続したこと
を特徴とする入力信号切換回路。[Claims for Utility Model Registration] A composite signal input terminal comprising a plurality of input sections, at least one of the plurality of input sections receives a composite signal in which a luminance signal and a chrominance signal are mixed, and a composite signal input terminal in which a luminance signal and a chrominance signal are separated. It has a luminance signal input terminal and a color signal input terminal which are inputted separately in a state in which the signals are input.
a separation circuit that separates the composite signal into a luminance signal and a chrominance signal; a luminance signal output terminal that outputs the luminance signal; a chrominance signal output terminal that outputs the chrominance signal; and between the output terminal and the plurality of input sections. An input signal switching circuit comprising a switching means for switching a connection state, the switching means comprising a contact common to a composite signal input terminal and an input terminal of either a luminance signal or a chrominance signal, and a separation circuit. a first switching contact inserted between the input terminal of the other of the luminance signal or the color signal and an output terminal corresponding to the input terminal; An input signal switching circuit, characterized in that it has an interlocking second switching contact, and the two output terminals are connected to a separation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18209787U JPH0526871Y2 (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18209787U JPH0526871Y2 (en) | 1987-11-30 | 1987-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0186785U true JPH0186785U (en) | 1989-06-08 |
| JPH0526871Y2 JPH0526871Y2 (en) | 1993-07-07 |
Family
ID=31473552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18209787U Expired - Lifetime JPH0526871Y2 (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526871Y2 (en) |
-
1987
- 1987-11-30 JP JP18209787U patent/JPH0526871Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526871Y2 (en) | 1993-07-07 |
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