GB721448A - Telephonograph with answering device - Google Patents

Telephonograph with answering device

Info

Publication number
GB721448A
GB721448A GB22044/51A GB2204451A GB721448A GB 721448 A GB721448 A GB 721448A GB 22044/51 A GB22044/51 A GB 22044/51A GB 2204451 A GB2204451 A GB 2204451A GB 721448 A GB721448 A GB 721448A
Authority
GB
United Kingdom
Prior art keywords
message
uttering
sept
record
recorded
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
GB22044/51A
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 GB721448A publication Critical patent/GB721448A/en
Expired legal-status Critical Current

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)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Electromechanical Clocks (AREA)

Abstract

721,448. Substation equipment. PROMUNDO TREUUNTERNEHMEN. Sept. 20, 1961 [Sept. 23, 1950], No. 22044/61. Drawings to Specification. Class 40 (4). [Also in Group XXXVIII] A telephonograph for answering and recording incoming calls has an endless magnetic tape guided over a series of rollers (see Group XXXVIII) and carrying a spoken message and directions to a caller, who is invited to record a message on a separate recording tape and may then have this recorded message repeated to him. The caller initiates this repetition by uttering a predetermined sequence of high and low-pitched sounds, high and lowpass filters being provided in the telephonegraph circuit, and may then cause the record to be erased by uttering a further low-pitched sound. A further message may be recorded if desired. The two magnetic tapes are driven by a single motor which also drives a set of rotating cams to perform a sequence of switching operations in known fashion.
GB22044/51A 1950-09-23 1951-09-20 Telephonograph with answering device Expired GB721448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH721448X 1950-09-23

Publications (1)

Publication Number Publication Date
GB721448A true GB721448A (en) 1955-01-05

Family

ID=4531582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22044/51A Expired GB721448A (en) 1950-09-23 1951-09-20 Telephonograph with answering device

Country Status (4)

Country Link
BE (1) BE505867A (en)
CH (1) CH294519A (en)
FR (1) FR1051296A (en)
GB (1) GB721448A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3183495A (en) * 1956-08-31 1965-05-11 Sperry Rand Corp Random access magnetic tape memory systems
US3183494A (en) * 1956-08-31 1965-05-11 Sperry Rand Corp Random access memory systems

Also Published As

Publication number Publication date
CH294519A (en) 1953-11-15
FR1051296A (en) 1954-01-14
BE505867A (en)

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