JPS6237588B2 - - Google Patents
Info
- Publication number
- JPS6237588B2 JPS6237588B2 JP16072281A JP16072281A JPS6237588B2 JP S6237588 B2 JPS6237588 B2 JP S6237588B2 JP 16072281 A JP16072281 A JP 16072281A JP 16072281 A JP16072281 A JP 16072281A JP S6237588 B2 JPS6237588 B2 JP S6237588B2
- Authority
- JP
- Japan
- Prior art keywords
- call
- handset
- path
- resistor
- voltage
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000011664 signaling Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16072281A JPS5862962A (ja) | 1981-10-08 | 1981-10-08 | インタ−ホン装置の信号方式 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16072281A JPS5862962A (ja) | 1981-10-08 | 1981-10-08 | インタ−ホン装置の信号方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5862962A JPS5862962A (ja) | 1983-04-14 |
JPS6237588B2 true JPS6237588B2 (en]) | 1987-08-13 |
Family
ID=15721048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16072281A Granted JPS5862962A (ja) | 1981-10-08 | 1981-10-08 | インタ−ホン装置の信号方式 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5862962A (en]) |
-
1981
- 1981-10-08 JP JP16072281A patent/JPS5862962A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5862962A (ja) | 1983-04-14 |
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