JPS63198250U - - Google Patents
Info
- Publication number
- JPS63198250U JPS63198250U JP1987088932U JP8893287U JPS63198250U JP S63198250 U JPS63198250 U JP S63198250U JP 1987088932 U JP1987088932 U JP 1987088932U JP 8893287 U JP8893287 U JP 8893287U JP S63198250 U JPS63198250 U JP S63198250U
- Authority
- JP
- Japan
- Prior art keywords
- answering machine
- capacitor
- photocoupler
- control circuit
- hook
- 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 description 5
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—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)
- Devices For Supply Of Signal Current (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987088932U JPH054362Y2 (US08063081-20111122-C00044.png) | 1987-06-09 | 1987-06-09 | |
| US07/081,666 US4833703A (en) | 1987-06-09 | 1987-08-04 | On-hook control circuit for answering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987088932U JPH054362Y2 (US08063081-20111122-C00044.png) | 1987-06-09 | 1987-06-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63198250U true JPS63198250U (US08063081-20111122-C00044.png) | 1988-12-20 |
| JPH054362Y2 JPH054362Y2 (US08063081-20111122-C00044.png) | 1993-02-03 |
Family
ID=13956669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987088932U Expired - Lifetime JPH054362Y2 (US08063081-20111122-C00044.png) | 1987-06-09 | 1987-06-09 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4833703A (US08063081-20111122-C00044.png) |
| JP (1) | JPH054362Y2 (US08063081-20111122-C00044.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0556138A (ja) * | 1991-01-07 | 1993-03-05 | Thomson Consumer Electron Inc | 電話自動応答装置用自動切断検出回路 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897793A (en) * | 1988-01-26 | 1990-01-30 | Francotyp-Postalia Gmbh | Configuration for a franking machine |
| FR2733381B1 (fr) * | 1995-04-19 | 1997-05-30 | Alcatel Business Systems | Procede et dispositif de controle de la sauvegarde de l'enregistrement d'un message telephone pour appareillage dote d'une fonction de repondeur et appareillage dote d'un tel dispositif |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57109449A (en) * | 1980-12-26 | 1982-07-07 | Masao Uchiumi | Call detecting circuit |
| JPS6272260A (ja) * | 1985-09-26 | 1987-04-02 | Matsushita Electric Ind Co Ltd | 留守番電話装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1529452A (en) * | 1975-04-10 | 1978-10-18 | Ansafone Ltd | Detection of direct currents or voltages |
| GB2092411A (en) * | 1980-06-09 | 1982-08-11 | Phone Mate Ltd | Telephone answering machines |
| US4484036A (en) * | 1981-05-18 | 1984-11-20 | T.A.D. Avanti, Inc. | Telephone ring detector system |
| US4444999A (en) * | 1982-08-23 | 1984-04-24 | Sparrevohn Frederic R | Automatic electronic disconnector for subscriber terminal equipment |
| US4496797A (en) * | 1983-09-29 | 1985-01-29 | At&T Technologies, Inc. | Circuit for automatically connecting and disconnecting a speakerphone to a telephone line |
-
1987
- 1987-06-09 JP JP1987088932U patent/JPH054362Y2/ja not_active Expired - Lifetime
- 1987-08-04 US US07/081,666 patent/US4833703A/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57109449A (en) * | 1980-12-26 | 1982-07-07 | Masao Uchiumi | Call detecting circuit |
| JPS6272260A (ja) * | 1985-09-26 | 1987-04-02 | Matsushita Electric Ind Co Ltd | 留守番電話装置 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0556138A (ja) * | 1991-01-07 | 1993-03-05 | Thomson Consumer Electron Inc | 電話自動応答装置用自動切断検出回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| US4833703A (en) | 1989-05-23 |
| JPH054362Y2 (US08063081-20111122-C00044.png) | 1993-02-03 |
