JPH0170451U - - Google Patents
Info
- Publication number
- JPH0170451U JPH0170451U JP1987165297U JP16529787U JPH0170451U JP H0170451 U JPH0170451 U JP H0170451U JP 1987165297 U JP1987165297 U JP 1987165297U JP 16529787 U JP16529787 U JP 16529787U JP H0170451 U JPH0170451 U JP H0170451U
- Authority
- JP
- Japan
- Prior art keywords
- control voltage
- ring tone
- amplifier
- speaker
- amplifies
- 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
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000005236 sound signal Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987165297U JPH0170451U (sv) | 1987-10-30 | 1987-10-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987165297U JPH0170451U (sv) | 1987-10-30 | 1987-10-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0170451U true JPH0170451U (sv) | 1989-05-10 |
Family
ID=31451652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987165297U Pending JPH0170451U (sv) | 1987-10-30 | 1987-10-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0170451U (sv) |
-
1987
- 1987-10-30 JP JP1987165297U patent/JPH0170451U/ja active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4315109A (en) | Electronic ring sounder for a speaker telephone | |
JPH0170451U (sv) | ||
JPH039550U (sv) | ||
JPH03120159U (sv) | ||
JPS61179643A (ja) | 呼出音量自動調整機能付電話機 | |
JPS61100061U (sv) | ||
JPH02250455A (ja) | 電話機のスピーカ音量可変方式 | |
JPH044451U (sv) | ||
JPH01139657U (sv) | ||
JPS6370751U (sv) | ||
JPS6242352U (sv) | ||
JPH0223113U (sv) | ||
JPH03135146A (ja) | 電話の呼出し装置 | |
JPS6381550U (sv) | ||
JPH0448743U (sv) | ||
JPH0247599U (sv) | ||
JPH02133041U (sv) | ||
JPS6429998U (sv) | ||
JPS62151251U (sv) | ||
JPS6261555U (sv) | ||
JPS59152762A (ja) | 打合せ電話回路 | |
JPS6230447U (sv) | ||
JPS6454447U (sv) | ||
JPH1075485A (ja) | 報知手段制御機能付き移動体通信装置及び移動体通信装置の報知手段制御方法 | |
JPS6257446U (sv) |