JPS60103758A - 自動ダイヤル装置の回線状態判別回路 - Google Patents
自動ダイヤル装置の回線状態判別回路Info
- Publication number
- JPS60103758A JPS60103758A JP58211502A JP21150283A JPS60103758A JP S60103758 A JPS60103758 A JP S60103758A JP 58211502 A JP58211502 A JP 58211502A JP 21150283 A JP21150283 A JP 21150283A JP S60103758 A JPS60103758 A JP S60103758A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- line
- detection
- hook
- relay
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000012634 fragment Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 26
- 238000012545 processing Methods 0.000 abstract description 9
- 230000004044 response Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/82—Line monitoring circuits for call progress or status discrimination
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58211502A JPS60103758A (ja) | 1983-11-09 | 1983-11-09 | 自動ダイヤル装置の回線状態判別回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58211502A JPS60103758A (ja) | 1983-11-09 | 1983-11-09 | 自動ダイヤル装置の回線状態判別回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60103758A true JPS60103758A (ja) | 1985-06-08 |
| JPH0329221B2 JPH0329221B2 (cs) | 1991-04-23 |
Family
ID=16606998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58211502A Granted JPS60103758A (ja) | 1983-11-09 | 1983-11-09 | 自動ダイヤル装置の回線状態判別回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60103758A (cs) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238662A (ja) * | 1985-08-14 | 1987-02-19 | Canon Inc | 画像通信装置 |
| JP2008106897A (ja) * | 2006-10-27 | 2008-05-08 | Nsk Ltd | トロイダル型無段変速機 |
-
1983
- 1983-11-09 JP JP58211502A patent/JPS60103758A/ja active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238662A (ja) * | 1985-08-14 | 1987-02-19 | Canon Inc | 画像通信装置 |
| JP2008106897A (ja) * | 2006-10-27 | 2008-05-08 | Nsk Ltd | トロイダル型無段変速機 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0329221B2 (cs) | 1991-04-23 |
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