JPH01149656A - Annoying telephone prevention device - Google Patents
Annoying telephone prevention deviceInfo
- Publication number
- JPH01149656A JPH01149656A JP30930887A JP30930887A JPH01149656A JP H01149656 A JPH01149656 A JP H01149656A JP 30930887 A JP30930887 A JP 30930887A JP 30930887 A JP30930887 A JP 30930887A JP H01149656 A JPH01149656 A JP H01149656A
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- person
- sent
- sound signal
- microphone
- 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
- 230000002265 prevention Effects 0.000 title 1
- 230000005236 sound signal Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
Abstract
PURPOSE:To protect a person from harassing telephone or naughty telephone and to enable the person to hear an important matter from some people besides by judging the counting of an enciphered intermittent sound signal sent from a caller and generating output informing that a telephone calls is come based on the judgement result. CONSTITUTION:When a telephone set is rung, the sound of it is perceived by a microphone 5 and a solenoide 4 immediately works and lifts a pressure bar 11. Then, the telephone set is made to be the same state as it is taken by a person. Due to that, a ring tone is stopped extremely in a short time. After that, the caller sends a figure code which is previously informed to him/her as the intermittent sound signal of a knocking sound or a short voice. The sent intermittent sound signal is converted to an electric signal by the microphone 5 and decided by an electronic circuit in a control box 7. When it coincides with a set value, electric power is sent to a buzzer 13 from a control circuit through an output circuit and the telephone call is informed to the person.
Description
【発明の詳細な説明】 である。[Detailed description of the invention] It is.
第２図は本発明の説明をする為のりパラフである。FIG. 2 is a glue paragraph for explaining the present invention.
慎３図は本発明の説明をする為のフ加ツ７ダイヤグラへ
である。Figure 3 is a diagram for explaining the present invention.
Claims (1)
れて来る暗号化された継続音信号を計数し判定する電子
回路を有する。そして、その判定結果により電話がかか
って来た事を知らせる出力を発生されており、先方に音
声を送る電子回路は含んでいない装置。It has an electronic circuit that receives an incoming call and counts and judges the encrypted continuous tone signal sent from the other party. Based on the determination result, the device generates an output to notify that there is an incoming call, and does not include an electronic circuit to send audio to the other party.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30930887A JPH01149656A (en) | 1987-12-07 | 1987-12-07 | Annoying telephone prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30930887A JPH01149656A (en) | 1987-12-07 | 1987-12-07 | Annoying telephone prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149656A true JPH01149656A (en) | 1989-06-12 |
Family
ID=17991446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30930887A Pending JPH01149656A (en) | 1987-12-07 | 1987-12-07 | Annoying telephone prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149656A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5408527A (en) * | 1989-06-28 | 1995-04-18 | Canon Kabushiki Kaisha | Exchange system and method of connecting calls in said exchange system |
-
1987
- 1987-12-07 JP JP30930887A patent/JPH01149656A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5408527A (en) * | 1989-06-28 | 1995-04-18 | Canon Kabushiki Kaisha | Exchange system and method of connecting calls in said exchange system |
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