GB1388037A - Automatic telephone answering machine - Google Patents

Automatic telephone answering machine

Info

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
Application number
GB1885572A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB1388037A publication Critical patent/GB1388037A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/64Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65Recording arrangements for recording a message from the calling party
    • H04M1/6515Recording 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.
GB1885572A 1971-12-03 1972-04-24 Automatic telephone answering machine Expired GB1388037A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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