JPS6437166U - - Google Patents
Info
- Publication number
- JPS6437166U JPS6437166U JP13215987U JP13215987U JPS6437166U JP S6437166 U JPS6437166 U JP S6437166U JP 13215987 U JP13215987 U JP 13215987U JP 13215987 U JP13215987 U JP 13215987U JP S6437166 U JPS6437166 U JP S6437166U
- Authority
- JP
- Japan
- Prior art keywords
- pass filter
- low
- tone signal
- modem
- 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
- 230000007175 bidirectional communication Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Facsimile Transmission Control (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13215987U JPS6437166U (enExample) | 1987-08-28 | 1987-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13215987U JPS6437166U (enExample) | 1987-08-28 | 1987-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6437166U true JPS6437166U (enExample) | 1989-03-06 |
Family
ID=31388868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13215987U Pending JPS6437166U (enExample) | 1987-08-28 | 1987-08-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6437166U (enExample) |
-
1987
- 1987-08-28 JP JP13215987U patent/JPS6437166U/ja active Pending
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