JPH0361736U - - Google Patents
Info
- Publication number
- JPH0361736U JPH0361736U JP12258989U JP12258989U JPH0361736U JP H0361736 U JPH0361736 U JP H0361736U JP 12258989 U JP12258989 U JP 12258989U JP 12258989 U JP12258989 U JP 12258989U JP H0361736 U JPH0361736 U JP H0361736U
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- telephone line
- functions
- dial tone
- output
- 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 5
- 238000007493 shaping process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12258989U JPH0361736U (ru) | 1989-10-19 | 1989-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12258989U JPH0361736U (ru) | 1989-10-19 | 1989-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0361736U true JPH0361736U (ru) | 1991-06-17 |
Family
ID=31670585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12258989U Pending JPH0361736U (ru) | 1989-10-19 | 1989-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0361736U (ru) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001211929A (ja) * | 2000-02-04 | 2001-08-07 | Takara Belmont Co Ltd | パーマ第１剤用容器、パーマ第１剤用ディスペンサー及びパーマ第１剤の小分け方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5324241A (en) * | 1976-08-19 | 1978-03-06 | Mitsubishi Electric Corp | Control unit |
| JPS63138842A (ja) * | 1986-11-26 | 1988-06-10 | ノーザン・テレコム・リミテツド | 発信音検出器 |
| JPS63245104A (ja) * | 1987-03-31 | 1988-10-12 | Fujitsu General Ltd | Ｆｍ変調回路 |
-
1989
- 1989-10-19 JP JP12258989U patent/JPH0361736U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5324241A (en) * | 1976-08-19 | 1978-03-06 | Mitsubishi Electric Corp | Control unit |
| JPS63138842A (ja) * | 1986-11-26 | 1988-06-10 | ノーザン・テレコム・リミテツド | 発信音検出器 |
| JPS63245104A (ja) * | 1987-03-31 | 1988-10-12 | Fujitsu General Ltd | Ｆｍ変調回路 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001211929A (ja) * | 2000-02-04 | 2001-08-07 | Takara Belmont Co Ltd | パーマ第１剤用容器、パーマ第１剤用ディスペンサー及びパーマ第１剤の小分け方法 |