JPS6429941U - - Google Patents
Info
- Publication number
- JPS6429941U JPS6429941U JP12441087U JP12441087U JPS6429941U JP S6429941 U JPS6429941 U JP S6429941U JP 12441087 U JP12441087 U JP 12441087U JP 12441087 U JP12441087 U JP 12441087U JP S6429941 U JPS6429941 U JP S6429941U
- Authority
- JP
- Japan
- Prior art keywords
- utility
- scope
- registration request
- model registration
- ambient brightness
- 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
第１図は本考案の電話機のブロツク図である。
１……端子、２……光検出回路、３……抵抗回
路、４……電鈴回路、５……通話回路、６……呼
出し信号。
路、４……電鈴回路、５……通話回路、６……呼
出し信号。
Claims (1)
- 周囲の明るさを検出して、呼出し音量を自動的
に切替える手段を具備して成ることを特徴とする
電話機。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12441087U JPS6429941U (ja) | 1987-08-13 | 1987-08-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12441087U JPS6429941U (ja) | 1987-08-13 | 1987-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6429941U true JPS6429941U (ja) | 1989-02-22 |
Family
ID=31374117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12441087U Pending JPS6429941U (ja) | 1987-08-13 | 1987-08-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6429941U (ja) |
-
1987
- 1987-08-13 JP JP12441087U patent/JPS6429941U/ja active Pending