JPH01139660U - - Google Patents
Info
- Publication number
- JPH01139660U JPH01139660U JP3548288U JP3548288U JPH01139660U JP H01139660 U JPH01139660 U JP H01139660U JP 3548288 U JP3548288 U JP 3548288U JP 3548288 U JP3548288 U JP 3548288U JP H01139660 U JPH01139660 U JP H01139660U
- Authority
- JP
- Japan
- Prior art keywords
- tone pulses
- telephone device
- incoming tone
- numeric keypad
- timing
- 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 3
- 238000010586 diagram Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3548288U JPH01139660U (en]) | 1988-03-17 | 1988-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3548288U JPH01139660U (en]) | 1988-03-17 | 1988-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01139660U true JPH01139660U (en]) | 1989-09-25 |
Family
ID=31262126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3548288U Pending JPH01139660U (en]) | 1988-03-17 | 1988-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01139660U (en]) |
-
1988
- 1988-03-17 JP JP3548288U patent/JPH01139660U/ja active Pending