JPS57159161A - Detector for callout signal - Google Patents
Detector for callout signalInfo
- Publication number
- JPS57159161A JPS57159161A JP4316881A JP4316881A JPS57159161A JP S57159161 A JPS57159161 A JP S57159161A JP 4316881 A JP4316881 A JP 4316881A JP 4316881 A JP4316881 A JP 4316881A JP S57159161 A JPS57159161 A JP S57159161A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- callout
- transformer
- primary
- inputted
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4316881A JPS57159161A (en) | 1981-03-26 | 1981-03-26 | Detector for callout signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4316881A JPS57159161A (en) | 1981-03-26 | 1981-03-26 | Detector for callout signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57159161A true JPS57159161A (en) | 1982-10-01 |
Family
ID=12656344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4316881A Pending JPS57159161A (en) | 1981-03-26 | 1981-03-26 | Detector for callout signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57159161A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008101930A (ja) * | 2006-10-17 | 2008-05-01 | Sumitomo Osaka Cement Co Ltd | 無機質繊維状物質の定性分析方法及び定性分析システム |
-
1981
- 1981-03-26 JP JP4316881A patent/JPS57159161A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008101930A (ja) * | 2006-10-17 | 2008-05-01 | Sumitomo Osaka Cement Co Ltd | 無機質繊維状物質の定性分析方法及び定性分析システム |
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