JPH0325068B2 - - Google Patents
Info
- Publication number
- JPH0325068B2 JPH0325068B2 JP13184684A JP13184684A JPH0325068B2 JP H0325068 B2 JPH0325068 B2 JP H0325068B2 JP 13184684 A JP13184684 A JP 13184684A JP 13184684 A JP13184684 A JP 13184684A JP H0325068 B2 JPH0325068 B2 JP H0325068B2
- Authority
- JP
- Japan
- Prior art keywords
- contact
- relay
- circuit
- call
- detection
- 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 28
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Meter Arrangements (AREA)
- Prepayment Telephone Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13184684A JPS6112159A (ja) | 1984-06-28 | 1984-06-28 | 公衆電話機の通話規制回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13184684A JPS6112159A (ja) | 1984-06-28 | 1984-06-28 | 公衆電話機の通話規制回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6112159A JPS6112159A (ja) | 1986-01-20 |
JPH0325068B2 true JPH0325068B2 (zh) | 1991-04-04 |
Family
ID=15067471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13184684A Granted JPS6112159A (ja) | 1984-06-28 | 1984-06-28 | 公衆電話機の通話規制回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6112159A (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6371672A (ja) * | 1986-09-13 | 1988-04-01 | Matsushita Electric Works Ltd | 超音波振動子 |
-
1984
- 1984-06-28 JP JP13184684A patent/JPS6112159A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6112159A (ja) | 1986-01-20 |
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