JPH0157839U - - Google Patents
Info
- Publication number
- JPH0157839U JPH0157839U JP1987152302U JP15230287U JPH0157839U JP H0157839 U JPH0157839 U JP H0157839U JP 1987152302 U JP1987152302 U JP 1987152302U JP 15230287 U JP15230287 U JP 15230287U JP H0157839 U JPH0157839 U JP H0157839U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- signal
- handset
- hold
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 15
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Mobile Radio Communication Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987152302U JPH0448029Y2 (zh) | 1987-10-05 | 1987-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987152302U JPH0448029Y2 (zh) | 1987-10-05 | 1987-10-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0157839U true JPH0157839U (zh) | 1989-04-11 |
| JPH0448029Y2 JPH0448029Y2 (zh) | 1992-11-12 |
Family
ID=31427105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987152302U Expired JPH0448029Y2 (zh) | 1987-10-05 | 1987-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448029Y2 (zh) |
-
1987
- 1987-10-05 JP JP1987152302U patent/JPH0448029Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0448029Y2 (zh) | 1992-11-12 |