JPS5645243Y2 - - Google Patents
Info
- Publication number
- JPS5645243Y2 JPS5645243Y2 JP1971011706U JP1170671U JPS5645243Y2 JP S5645243 Y2 JPS5645243 Y2 JP S5645243Y2 JP 1971011706 U JP1971011706 U JP 1971011706U JP 1170671 U JP1170671 U JP 1170671U JP S5645243 Y2 JPS5645243 Y2 JP S5645243Y2
- Authority
- JP
- Japan
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
- H04M1/654—Telephone line monitoring circuits therefor, e.g. ring detectors
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1971011706U JPS5645243Y2 (ja) | 1971-02-27 | 1971-02-27 | |
| CA134,965A CA949689A (en) | 1971-02-27 | 1972-02-17 | Input circuit for an automatic telephone answering device |
| AU39297/72A AU461789B2 (en) | 1971-02-27 | 1972-02-23 | Input circuit foran automatic telephone answering device |
| US00228881A US3766321A (en) | 1971-02-27 | 1972-02-24 | Input circuit for an automatic telephone answering device |
| GB892472A GB1370196A (en) | 1971-02-27 | 1972-02-25 | Input circuit for an automatic telephone answering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1971011706U JPS5645243Y2 (ja) | 1971-02-27 | 1971-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS479306U JPS479306U (ja) | 1972-10-04 |
| JPS5645243Y2 true JPS5645243Y2 (ja) | 1981-10-22 |
Family
ID=11785473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1971011706U Expired JPS5645243Y2 (ja) | 1971-02-27 | 1971-02-27 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3766321A (ja) |
| JP (1) | JPS5645243Y2 (ja) |
| AU (1) | AU461789B2 (ja) |
| CA (1) | CA949689A (ja) |
| GB (1) | GB1370196A (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS505512U (ja) * | 1973-05-17 | 1975-01-21 | ||
| FR2525056A1 (fr) * | 1982-04-09 | 1983-10-14 | Telephonie Ind Commerciale | Dispositif de prise de ligne sans decrochage pour poste telephonique comportant un microprocesseur |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3325598A (en) * | 1963-09-18 | 1967-06-13 | Bell Telephone Labor Inc | Remote condition monitoring circuit with ringing current actuated switch connecting twomode oscillator to telephone line |
| US3445600A (en) * | 1964-08-07 | 1969-05-20 | Leonard M Todd | Telephone answering device |
| US3492439A (en) * | 1965-11-10 | 1970-01-27 | Amtron | Telephone signalling circuit |
| US3485952A (en) * | 1967-01-23 | 1969-12-23 | Alvin E Walker | Electronic phone control |
-
1971
- 1971-02-27 JP JP1971011706U patent/JPS5645243Y2/ja not_active Expired
-
1972
- 1972-02-17 CA CA134,965A patent/CA949689A/en not_active Expired
- 1972-02-23 AU AU39297/72A patent/AU461789B2/en not_active Expired
- 1972-02-24 US US00228881A patent/US3766321A/en not_active Expired - Lifetime
- 1972-02-25 GB GB892472A patent/GB1370196A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS479306U (ja) | 1972-10-04 |
| AU3929772A (en) | 1973-08-30 |
| GB1370196A (en) | 1974-10-16 |
| CA949689A (en) | 1974-06-18 |
| US3766321A (en) | 1973-10-16 |
| AU461789B2 (en) | 1975-05-20 |