JPS5969551U - Cordless telephone handset switching circuit - Google Patents
Cordless telephone handset switching circuitInfo
- Publication number
- JPS5969551U JPS5969551U JP1982164855U JP16485582U JPS5969551U JP S5969551 U JPS5969551 U JP S5969551U JP 1982164855 U JP1982164855 U JP 1982164855U JP 16485582 U JP16485582 U JP 16485582U JP S5969551 U JPS5969551 U JP S5969551U
- Authority
- JP
- Japan
- Prior art keywords
- state
- circuit
- switching circuit
- talk
- switch
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案の一実施例を示す子機全体の回路図である
。
ｓｗ、 ｓｗ□・・・切替スイッチ、Ｔ・・・充電端子
、１９・・・チャタリング防止回路、２０・・・フリッ
プフロップ回路、２１・・・ＮＡＮＤ回路、２４・・・
切替回路。The drawing is a circuit diagram of the entire slave unit showing an embodiment of the present invention. sw, sw□...Changing switch, T...Charging terminal, 19...Chattering prevention circuit, 20...Flip-flop circuit, 21...NAND circuit, 24...
switching circuit.
Claims (1)
切替えるスイッチＳＷと、該切替スイッチ９Ｗのチャタ
リング防止回路１９と、親機に置いた時に充電端子Ｔを
介してこれを検知する電圧によりＯＮ 、ＯＦＦ操作す
る５Ｔ−ＢＹ（待受状態）またはＴＡＬＫ（通話状態）
切替回路２４とを有する子機切替回路において、前記切
替スイッチＳＷをモーメンタリ式ブツシュスイッチによ
、り構成すると共に、親機から持上げた時に５Ｔ−ＢＹ
（待受状態）に切替えるスイッチＳＷ１を設ける一方、
前記チャタリング防止回路１９と５Ｔ−ＢＹ（待受状態
）またばＴＡＬＫ（通話状態）切替回路２４との間ト前
″記スイッチＳＷ□の操作により反転するフリップフロ
ップ回路２０と、子機を親機に置くことにより前記反転
したフリップフロップ回路２０をさラニ反転させるべく
反転パルスを生ずるＮＡＮＤ回路２１とからなり、親機
から子機を持上げかつ前記スイッチＳＷ□をＯＮにして
５Ｔ−ＢＹ（待受）状態とし、その後子機を親機に置く
と前記ＮＡＮＤ回路２１を介してＴＡＬＫ（通話）状態
にする一方、充電端子Ｔからの電圧により前記切替回路
２４をＯＦＦにし、て５Ｔ−ＢＹ（待受）状態に保ち、
その後子機を取上げればこの制限を解除してＴＡＬＫ（
通話）状態とする様にしたコードレス電話機の子機切替
回路。5T-BY (standby state) or TALK (talking state) switch SW, the chattering prevention circuit 19 of the changeover switch 9W, and the voltage that is detected via the charging terminal T when placed on the base unit. , OFF operation 5T-BY (standby state) or TALK (talking state)
In the handset switching circuit having the switching circuit 24, the changeover switch SW is constituted by a momentary type bush switch, and when lifted from the base unit, the 5T-BY
While providing a switch SW1 for switching to (standby state),
Between the chattering prevention circuit 19 and the 5T-BY (standby state) or TALK (talking state) switching circuit 24, there is a flip-flop circuit 20 that is inverted by the operation of the switch SW It consists of a NAND circuit 21 which generates an inversion pulse to invert the flip-flop circuit 20 which has been inverted by placing it in ) state, and then when the slave device is placed on the base device, it enters the TALK state via the NAND circuit 21, while the switching circuit 24 is turned off by the voltage from the charging terminal T, and the state is 5T-BY (standby). (reception) condition,
After that, if you pick up the handset, this restriction will be canceled and you can use TALK (
This is a handset switching circuit for a cordless telephone that is configured to be in a talking (talking) state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982164855U JPS5969551U (en) | 1982-10-29 | 1982-10-29 | Cordless telephone handset switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982164855U JPS5969551U (en) | 1982-10-29 | 1982-10-29 | Cordless telephone handset switching circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5969551U true JPS5969551U (en) | 1984-05-11 |
| JPH03770Y2 JPH03770Y2 (en) | 1991-01-11 |
Family
ID=30361320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982164855U Granted JPS5969551U (en) | 1982-10-29 | 1982-10-29 | Cordless telephone handset switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5969551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62188524A (en) * | 1985-12-11 | 1987-08-18 | エリクソン ジーイー モービル コミュニケーションズ インコーポレーテッド | Portable wireless system with connector which facilitates external programming |
-
1982
- 1982-10-29 JP JP1982164855U patent/JPS5969551U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62188524A (en) * | 1985-12-11 | 1987-08-18 | エリクソン ジーイー モービル コミュニケーションズ インコーポレーテッド | Portable wireless system with connector which facilitates external programming |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03770Y2 (en) | 1991-01-11 |
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