JPS6335348U - - Google Patents
Info
- Publication number
- JPS6335348U JPS6335348U JP12980886U JP12980886U JPS6335348U JP S6335348 U JPS6335348 U JP S6335348U JP 12980886 U JP12980886 U JP 12980886U JP 12980886 U JP12980886 U JP 12980886U JP S6335348 U JPS6335348 U JP S6335348U
- Authority
- JP
- Japan
- Prior art keywords
- switch means
- telephone
- elapsed
- turns
- tone
- 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
- 238000010586 diagram Methods 0.000 description 1
Description
図は本考案の一実施例を示すブロツク図である
。 ７…計時手段（制御回路）、１０，１０Ａ…ス
イツチ手段。
。 ７…計時手段（制御回路）、１０，１０Ａ…ス
イツチ手段。
Claims (1)
- 電話回線より到来した呼出信号を可聴信号によ
り着信表示を行なう電話機のトーンリンガ回路に
おいて、可聴信号音の音量を切換える複数個のス
イツチ手段１０，１０Ａとそれらを制御する計時
手段７とを設け、計時手段７は特定の時間帯に両
スイツチ手段１０，１０Ａをオン制御し、着信音
表示開始より一定時間経過後一方のスイツチ手段
１０Ａをオフ制御し、更に一定時間経過後他方の
スイツチ手段１０をオフ制御する機能を備えたこ
とを特徴とする電話機のトーンリンガ回路。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12980886U JPS6335348U (ja) | 1986-08-26 | 1986-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12980886U JPS6335348U (ja) | 1986-08-26 | 1986-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6335348U true JPS6335348U (ja) | 1988-03-07 |
Family
ID=31026716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12980886U Pending JPS6335348U (ja) | 1986-08-26 | 1986-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6335348U (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658675A (ja) * | 1992-08-04 | 1994-03-04 | Nippon Steel Corp | 焼結原料の装入装置 |
-
1986
- 1986-08-26 JP JP12980886U patent/JPS6335348U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658675A (ja) * | 1992-08-04 | 1994-03-04 | Nippon Steel Corp | 焼結原料の装入装置 |