JPH0230654U - - Google Patents
Info
- Publication number
- JPH0230654U JPH0230654U JP10950488U JP10950488U JPH0230654U JP H0230654 U JPH0230654 U JP H0230654U JP 10950488 U JP10950488 U JP 10950488U JP 10950488 U JP10950488 U JP 10950488U JP H0230654 U JPH0230654 U JP H0230654U
- Authority
- JP
- Japan
- Prior art keywords
- set signal
- detection circuit
- circuit
- telephone
- absence
- 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 4
- 238000010586 diagram Methods 0.000 description 1
Description
図は本考案になるフリーハンドホンの一実施例
を示す構成図である。
１…本体部、３…ハンドセツト部、４…ライン
、９，１０，１３，１７…切換えスイツチ、１９
…検出回路、２０…ゲート部、２１，２２…フリ
ツプフロツプ、２２…アンドゲート。
The figure is a configuration diagram showing an embodiment of the free handphone according to the present invention. DESCRIPTION OF SYMBOLS 1... Main body part, 3... Handset part, 4... Line, 9, 10, 13, 17... Changeover switch, 19
...detection circuit, 20...gate section, 21, 22...flip-flop, 22...and gate.
Claims (1)
号を出力する検出回路と、 電話器の断続した鳴動音による呼び出し中、鳴
動音が鳴つていない間のみ前記検出回路からのセ
ツト信号を通過させるゲート回路と、 前記ゲート回路を通過した前記セツト信号に応
じて通話状態にライン接続すると共に、スイツチ
からのリセツト信号により前記ラインを切断する
制御回路とからなることを特徴とするフリーハン
ドホン。[Scope of Claim for Utility Model Registration] A detection circuit that detects the presence or absence of sound around the telephone and outputs a set signal, and a detection circuit that detects the presence or absence of sound around the telephone and outputs a set signal; Consisting of a gate circuit that allows the set signal from the detection circuit to pass through, and a control circuit that connects the line to a talking state in response to the set signal that has passed through the gate circuit, and disconnects the line in response to a reset signal from the switch. A free hand phone featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10950488U JPH0230654U (en) | 1988-08-20 | 1988-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10950488U JPH0230654U (en) | 1988-08-20 | 1988-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0230654U true JPH0230654U (en) | 1990-02-27 |
Family
ID=31345807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10950488U Pending JPH0230654U (en) | 1988-08-20 | 1988-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230654U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61219249A (en) * | 1985-03-25 | 1986-09-29 | Matsushita Electric Works Ltd | Voice responding type telephone line closing device |
-
1988
- 1988-08-20 JP JP10950488U patent/JPH0230654U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61219249A (en) * | 1985-03-25 | 1986-09-29 | Matsushita Electric Works Ltd | Voice responding type telephone line closing device |
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