JPS56149888A - On-off signal detecting circuit from terminal equipment - Google Patents
On-off signal detecting circuit from terminal equipmentInfo
- Publication number
- JPS56149888A JPS56149888A JP5373680A JP5373680A JPS56149888A JP S56149888 A JPS56149888 A JP S56149888A JP 5373680 A JP5373680 A JP 5373680A JP 5373680 A JP5373680 A JP 5373680A JP S56149888 A JPS56149888 A JP S56149888A
- Authority
- JP
- Japan
- Prior art keywords
- differential amplifier
- input
- terminal equipment
- detecting circuit
- signal detecting
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5373680A JPS56149888A (en) | 1980-04-22 | 1980-04-22 | On-off signal detecting circuit from terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5373680A JPS56149888A (en) | 1980-04-22 | 1980-04-22 | On-off signal detecting circuit from terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56149888A true JPS56149888A (en) | 1981-11-19 |
Family
ID=12951105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5373680A Pending JPS56149888A (en) | 1980-04-22 | 1980-04-22 | On-off signal detecting circuit from terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56149888A (ja) |
-
1980
- 1980-04-22 JP JP5373680A patent/JPS56149888A/ja active Pending
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