JPS547213A - Howler signal transmission system - Google Patents
Howler signal transmission systemInfo
- Publication number
- JPS547213A JPS547213A JP7206677A JP7206677A JPS547213A JP S547213 A JPS547213 A JP S547213A JP 7206677 A JP7206677 A JP 7206677A JP 7206677 A JP7206677 A JP 7206677A JP S547213 A JPS547213 A JP S547213A
- Authority
- JP
- Japan
- Prior art keywords
- signal transmission
- transmission system
- howler signal
- howler
- grade
- 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
Abstract
PURPOSE:To prevent the transmission of the higher grade howler signal from the start to plural subscribers by transmitting the lower grade howler signal at the outset.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7206677A JPS547213A (en) | 1977-06-20 | 1977-06-20 | Howler signal transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7206677A JPS547213A (en) | 1977-06-20 | 1977-06-20 | Howler signal transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS547213A true JPS547213A (en) | 1979-01-19 |
Family
ID=13478642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7206677A Pending JPS547213A (en) | 1977-06-20 | 1977-06-20 | Howler signal transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS547213A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61281665A (en) * | 1985-05-30 | 1986-12-12 | Fujitsu Ltd | Intra-band howler sending system |
-
1977
- 1977-06-20 JP JP7206677A patent/JPS547213A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61281665A (en) * | 1985-05-30 | 1986-12-12 | Fujitsu Ltd | Intra-band howler sending system |
JPH0330349B2 (en) * | 1985-05-30 | 1991-04-30 |
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