JPH0416664U - - Google Patents
Info
- Publication number
- JPH0416664U JPH0416664U JP5399490U JP5399490U JPH0416664U JP H0416664 U JPH0416664 U JP H0416664U JP 5399490 U JP5399490 U JP 5399490U JP 5399490 U JP5399490 U JP 5399490U JP H0416664 U JPH0416664 U JP H0416664U
- Authority
- JP
- Japan
- Prior art keywords
- input
- switching circuit
- signal
- contact
- inputs
- 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
Links
- 230000001681 protective effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は本考案の入力切換回路のブロツク図、
第２図は入力端子の接点信号出力の回路図、第３
図は入力切換時の制御手順のフローチヤートであ
る。
図中、１０および１０ａ〜１０ｃは入力端子、
１１および１１ａ〜１１ｃは入力信号、１２は入
力切換回路、１４は出力端子、１５および１５ａ
〜１５ｃは接点信号、１６は制御部、１６ａは切
換制御信号、１７はキー入力部、１８はリモコン
信号受信部、１９はリモコン操作器、２０は接点
部、２０ａは信号電極、２０ｂは固定電極、２１
〜２２は抵抗、２３はコンデンサ、２４は直流電
源である。
Figure 1 is a block diagram of the input switching circuit of the present invention.
Figure 2 is a circuit diagram of the input terminal contact signal output, Figure 3
The figure is a flowchart of the control procedure when switching inputs. In the figure, 10 and 10a to 10c are input terminals,
11 and 11a to 11c are input signals, 12 is an input switching circuit, 14 is an output terminal, 15 and 15a
15c is a contact signal, 16 is a control section, 16a is a switching control signal, 17 is a key input section, 18 is a remote control signal receiving section, 19 is a remote control operator, 20 is a contact section, 20a is a signal electrode, 20b is a fixed electrode , 21
22 is a resistor, 23 is a capacitor, and 24 is a DC power supply.
Claims (1)
子に入力する信号の一つを選択する入力切換回路
と、リモコン信号受信部を介したリモコン操作器
またはキー入力部の出力する操作指令を入力し、
同指令に対応する制御信号を出力して同入力切換
回路の切換制御をする制御部を備えるＡＶ機器の
入力切換回路において、前記入力端子を、同入力
端子に外部から信号を入力するプラグ電極の挿入
により開閉する接点を備えたジヤツクとし、前記
リモコン操作器またはキー入力部の指定により前
記制御部が前記入力切換回路の切換制御信号出力
時に、同制御部に入力した同接点の出力を確認し
、信号入力のプラグ挿入のある入力のみを選択す
ることを特徴とするＡＶ機器の入力切換回路。 (2) 複数の電極を有するマルチコネクタの一つ
の電極に、信号源側より保護抵抗を介して直流電
圧を印加し、入力側で同電極に電圧印加のある入
力のみ選択することを特徴とする請求項(1)記載
のＡＶ機器の入力切換回路。 (3) 前記リモコン操作器またはキー入力部より
指定した入力端子の接点出力がないとき、同接点
出力を確認するまで所定の順序で切換確認するこ
とを特徴とする請求項(1)または(2)記載のＡＶ機
器の入力切換回路。[Claims for Utility Model Registration] (1) An input switching circuit that is equipped with a plurality of AV signal input terminals and selects one of the signals to be input to the input terminal, and a remote controller or key that is connected to the remote control signal receiver. Input the operation command output from the input section,
In an input switching circuit of an AV device that is equipped with a control unit that outputs a control signal corresponding to the directive to control switching of the input switching circuit, the input terminal is connected to a plug electrode that inputs a signal from the outside to the input terminal. The jack is equipped with a contact that opens and closes when inserted, and when the control unit outputs a switching control signal of the input switching circuit according to the specification of the remote controller or key input unit, the output of the contact input to the control unit is checked. An input switching circuit for AV equipment, characterized in that it selects only inputs for which a signal input plug is inserted. (2) A DC voltage is applied to one electrode of a multi-connector having multiple electrodes from the signal source side via a protective resistor, and only inputs with voltage applied to the same electrode are selected on the input side. An input switching circuit for AV equipment according to claim (1). (3) When there is no contact output from the input terminal designated by the remote controller or the key input unit, switching is confirmed in a predetermined order until the contact output is confirmed. ) Input switching circuit for AV equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5399490U JPH0416664U (en) | 1990-05-23 | 1990-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5399490U JPH0416664U (en) | 1990-05-23 | 1990-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0416664U true JPH0416664U (en) | 1992-02-12 |
Family
ID=31575664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5399490U Pending JPH0416664U (en) | 1990-05-23 | 1990-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416664U (en) |
-
1990
- 1990-05-23 JP JP5399490U patent/JPH0416664U/ja active Pending
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