JPS62143330U - - Google Patents
Info
- Publication number
- JPS62143330U JPS62143330U JP318786U JP318786U JPS62143330U JP S62143330 U JPS62143330 U JP S62143330U JP 318786 U JP318786 U JP 318786U JP 318786 U JP318786 U JP 318786U JP S62143330 U JPS62143330 U JP S62143330U
- Authority
- JP
- Japan
- Prior art keywords
- output
- control signal
- time
- local sweep
- sweep control
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Description
図は本考案の実施例の回路図である。
図中、符号ＳＷ１は同調操作用スイツチ、Ａは
操作時間検出回路、Ｂは局発掃引制御信号発生回
路。
The figure is a circuit diagram of an embodiment of the present invention. In the figure, symbol SW1 is a tuning operation switch, A is an operation time detection circuit, and B is a local sweep control signal generation circuit.
Claims (1)
、同調操作時にはオン位置にある自己復帰型の同
調操作用スイツチと、 前記同調操作用スイツチのオン位置操作開始に
伴なつて第１検出電圧を出力し、その操作開始時
から操作終了時までのオン位置操作時間が、所定
の時間範囲内にあるときはその操作終了時に第２
検出電圧を、また所定の時間範囲外のときはその
操作終了時に第３検出電圧を、それぞれ出力する
操作時間検出回路とを設け、 前記同調操作用スイツチの最初のオン位置操作
時には前記第１検出電圧に応答して局発掃引制御
信号の出力を開始し、その開始後からのオン位置
操作時間が、前記所定の時間範囲内にあるときは
次のオン位置操作時の前記第１検出電圧に応答し
て前記局発掃引制御信号の出力を停止し、同じく
その開始後からのオン位置操作時間が前記所定の
時間範囲外にあるときはそのオフ位置操作時の前
記第３検出電圧に応答して前記局発掃引制御信号
の出力を停止する局発掃引制御信号発生手段とを
具備してなる、テレビジヨン受信機の局発掃引時
間制御回路。[Scope of Utility Model Registration Claim] A self-resetting tuning operation switch that is in the OFF position (return position) during non-tuning operation and in the ON position during tuning operation, and when the tuning operation switch starts operating in the ON position. If the on-position operation time from the start of the operation to the end of the operation is within a predetermined time range, the second detection voltage is output at the end of the operation.
An operation time detection circuit is provided which outputs a detection voltage, and a third detection voltage at the end of the operation when the operation is outside a predetermined time range, and outputs the first detection voltage when the tuning operation switch is operated to the ON position for the first time. In response to the voltage, output of a local sweep control signal is started, and when the on-position operation time after the start is within the predetermined time range, the output is applied to the first detected voltage at the next on-position operation. In response, the output of the local sweep control signal is stopped, and when the on-position operation time after the start of the local sweep control signal is outside the predetermined time range, the output is responded to the third detected voltage at the time of the off-position operation. A local sweep time control circuit for a television receiver, comprising means for generating a local sweep control signal for stopping output of the local sweep control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP318786U JPS62143330U (en) | 1986-01-13 | 1986-01-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP318786U JPS62143330U (en) | 1986-01-13 | 1986-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62143330U true JPS62143330U (en) | 1987-09-10 |
Family
ID=30782714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP318786U Pending JPS62143330U (en) | 1986-01-13 | 1986-01-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62143330U (en) |
-
1986
- 1986-01-13 JP JP318786U patent/JPS62143330U/ja active Pending