GB1388037A - Automatic telephone answering machine - Google Patents
Automatic telephone answering machineInfo
- Publication number
- GB1388037A GB1388037A GB1885572A GB1885572A GB1388037A GB 1388037 A GB1388037 A GB 1388037A GB 1885572 A GB1885572 A GB 1885572A GB 1885572 A GB1885572 A GB 1885572A GB 1388037 A GB1388037 A GB 1388037A
- Authority
- GB
- United Kingdom
- Prior art keywords
- announcement
- circuit
- arrangement
- tone
- answering
- 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
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
- H04M1/6515—Recording arrangements for recording a message from the calling party using magnetic tape
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
1388037 Substation equipment ; transistor amplifier oscillator and delay circuits W MULLER 24 April 1972 [3 Dec 1971] 18855/72 Headings H4K and H3T A telephone answering machine has a first recording unit for providing an answering announcement and a second recording unit for recording a caller's message where the second unit is switched on by circuitry which responds to a control signal (tone) replayed by the first unit after the answering announcement and a second control signal is replayed by the first unit after a closing announcement to cause the machine to reset itself. The schematic diagram shown provides an announcement arrangement 33 and a message recording arrangement 31 which can be connected to line La, Lb through changeover relay 37. The tone required to switch over relay 37 is provided by the amplifier/ oscillator circuit 20 which includes a bridged-T filter circuit 23. Whilst the announcement is being recorded, operation of button 26 causes transistor 25 to conduct to short-circuit resistor 24 and cause the circuit 20 to oscillate. A burst of tone is provided after the answering message and a further longer burst of tone is provided after the closing announcement. When the telephone line is rung circuit 8 causes the line to be looped and answering arrangement 33 to be switched on and the answering announcement read by head 14 transmitted through amplifier 11 to the line. The shorter recorded tone passes through circuit 20 to circuit 30 before contact 29 changes over and causes recording arrangement 31 to operate. The caller's message passes from the telephone line to head 13 and the speech signals also pass through speech switch 34 and timer 35 to maintain arrangement 31 in operation. At the end of the overall time or when silence is received the relay 36 drops contacts 37 to operate arrangement 33 and play the closing announcement. The long burst of tone provided at the end of the announcement causes the rewind/reset arrangement 32 to be operated through contact 29. A switching circuit, Fig. 3 (not shown), is used to provide delayed switching of contact 29 so that the first incoming pulse has decayed sufficiently not to operate circuit 32 when contact 29 is changed over.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1767571A CH549319A (en) | 1971-12-03 | 1971-12-03 | DEVICE FOR AUTOMATIC TELEPHONE ANSWERING. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1388037A true GB1388037A (en) | 1975-03-19 |
Family
ID=4427230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1885572A Expired GB1388037A (en) | 1971-12-03 | 1972-04-24 | Automatic telephone answering machine |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS5215403B2 (en) |
AT (1) | AT319350B (en) |
BE (1) | BE784639A (en) |
CA (1) | CA961186A (en) |
CH (1) | CH549319A (en) |
DE (1) | DE2205919C3 (en) |
FR (1) | FR2164123A5 (en) |
GB (1) | GB1388037A (en) |
IT (1) | IT958560B (en) |
NL (2) | NL169666C (en) |
SE (1) | SE368497B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4445148A (en) * | 1980-12-19 | 1984-04-24 | Compur-Electronic Gmbh | Automatic telephone answering apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5242304A (en) * | 1975-09-30 | 1977-04-01 | Hashimoto Corp | Receiving tape control system and device by means of response tape in telephone automatic response and recording unit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2793252A (en) * | 1952-09-03 | 1957-05-21 | Bell Telephone Labor Inc | Telephone answering and message recording system |
DE944861C (en) * | 1952-10-21 | 1956-06-28 | Max Grundig | Arrangement for magnetic recorders provided at a telephone station for the automatic recording of telephone calls |
US3226478A (en) * | 1960-12-16 | 1965-12-28 | Automatic Elect Lab | Automatic telephone answering and message recording system |
US3445600A (en) * | 1964-08-07 | 1969-05-20 | Leonard M Todd | Telephone answering device |
-
1971
- 1971-12-03 CH CH1767571A patent/CH549319A/en not_active IP Right Cessation
-
1972
- 1972-02-08 DE DE19722205919 patent/DE2205919C3/en not_active Expired
- 1972-03-02 NL NL7202765A patent/NL169666C/en not_active IP Right Cessation
- 1972-04-24 GB GB1885572A patent/GB1388037A/en not_active Expired
- 1972-04-28 SE SE565472A patent/SE368497B/xx unknown
- 1972-04-29 IT IT4995472A patent/IT958560B/en active
- 1972-05-17 FR FR7217610A patent/FR2164123A5/fr not_active Expired
- 1972-06-09 BE BE784639A patent/BE784639A/en not_active IP Right Cessation
- 1972-06-12 CA CA144,487A patent/CA961186A/en not_active Expired
- 1972-09-27 AT AT829472A patent/AT319350B/en not_active IP Right Cessation
- 1972-10-30 JP JP10804072A patent/JPS5215403B2/ja not_active Expired
-
1982
- 1982-02-02 NL NL8200377A patent/NL8200377A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4445148A (en) * | 1980-12-19 | 1984-04-24 | Compur-Electronic Gmbh | Automatic telephone answering apparatus |
Also Published As
Publication number | Publication date |
---|---|
BE784639A (en) | 1972-10-02 |
NL7202765A (en) | 1973-06-05 |
JPS5215403B2 (en) | 1977-04-28 |
DE2205919C3 (en) | 1981-12-17 |
SE368497B (en) | 1974-07-01 |
CH549319A (en) | 1974-05-15 |
NL169666C (en) | 1982-08-02 |
IT958560B (en) | 1973-10-30 |
FR2164123A5 (en) | 1973-07-27 |
AT319350B (en) | 1974-12-10 |
DE2205919B2 (en) | 1976-04-29 |
NL8200377A (en) | 1982-05-03 |
DE2205919A1 (en) | 1973-06-14 |
CA961186A (en) | 1975-01-14 |
JPS4865816A (en) | 1973-09-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |