JPH0469949U - - Google Patents
Info
- Publication number
- JPH0469949U JPH0469949U JP11312290U JP11312290U JPH0469949U JP H0469949 U JPH0469949 U JP H0469949U JP 11312290 U JP11312290 U JP 11312290U JP 11312290 U JP11312290 U JP 11312290U JP H0469949 U JPH0469949 U JP H0469949U
- Authority
- JP
- Japan
- Prior art keywords
- dtmf signal
- circuit
- processing unit
- central processing
- telephone line
- 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 2
- 238000010586 diagram Methods 0.000 description 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11312290U JPH0469949U (zh) | 1990-10-30 | 1990-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11312290U JPH0469949U (zh) | 1990-10-30 | 1990-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0469949U true JPH0469949U (zh) | 1992-06-22 |
Family
ID=31860673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11312290U Pending JPH0469949U (zh) | 1990-10-30 | 1990-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0469949U (zh) |
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1990
- 1990-10-30 JP JP11312290U patent/JPH0469949U/ja active Pending