JPS53108212A - Howler sound trasmission system - Google Patents
Howler sound trasmission systemInfo
- Publication number
- JPS53108212A JPS53108212A JP2315677A JP2315677A JPS53108212A JP S53108212 A JPS53108212 A JP S53108212A JP 2315677 A JP2315677 A JP 2315677A JP 2315677 A JP2315677 A JP 2315677A JP S53108212 A JPS53108212 A JP S53108212A
- Authority
- JP
- Japan
- Prior art keywords
- howler sound
- trasmission
- howler
- sound
- trasmission system
- 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
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/02—Calling substations, e.g. by ringing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Abstract
PURPOSE:To secure a transmission of the howler sound in the form of an effective high-level signal to the subscriber line which introduced a subscriber line carrier device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2315677A JPS53108212A (en) | 1977-03-02 | 1977-03-02 | Howler sound trasmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2315677A JPS53108212A (en) | 1977-03-02 | 1977-03-02 | Howler sound trasmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53108212A true JPS53108212A (en) | 1978-09-20 |
Family
ID=12102723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2315677A Pending JPS53108212A (en) | 1977-03-02 | 1977-03-02 | Howler sound trasmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53108212A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63246074A (en) * | 1987-03-31 | 1988-10-13 | Nec Corp | Howler signal transmission system |
-
1977
- 1977-03-02 JP JP2315677A patent/JPS53108212A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63246074A (en) * | 1987-03-31 | 1988-10-13 | Nec Corp | Howler signal transmission system |
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