US2553410A - Device for eliminating silent periods between intermittent recordings - Google Patents

Device for eliminating silent periods between intermittent recordings Download PDF

Info

Publication number
US2553410A
US2553410A US722603A US72260347A US2553410A US 2553410 A US2553410 A US 2553410A US 722603 A US722603 A US 722603A US 72260347 A US72260347 A US 72260347A US 2553410 A US2553410 A US 2553410A
Authority
US
United States
Prior art keywords
relay
contact
recording
time
circuit
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 - Lifetime
Application number
US722603A
Inventor
Handschin Max
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.)
IPSOPHON PATENTGESELLSCHAFT A
Ipsophon Patentgesellschaft A-G
Original Assignee
IPSOPHON PATENTGESELLSCHAFT A
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 IPSOPHON PATENTGESELLSCHAFT A filed Critical IPSOPHON PATENTGESELLSCHAFT A
Application granted granted Critical
Publication of US2553410A publication Critical patent/US2553410A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H04M1/647Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations using magnetic tape

Definitions

  • the object of the present invention is the creation of a device with which it is sought to eliminate these disadvantages.
  • This object is achieved, in accordance with the invention, by the provision of electrical agencies for the supervision of the incoming impulses, which said electrical agencies, when the impulses cease to arrive, operate a time-limit coupling set to function for a pre-determined period, at the end of which agencies provided for the winding back of as much of the carrier which receives the impulse-recordings as has been run off in this pre-determined time are operated, the apparatus being switched ofi when the process of winding back is completed.
  • a speech control relay with time-lag can conveniently be used.
  • the time-limit coupling can also take the form of a time-lag relay.
  • cam-discs are set in rotation through gearing, the contacts of which cam-discs switch ofi the microphone at the end of a predetermined period and effect the switching off and, subsequently thereto, the winding back of the wiredrum and, when the winding back is completed, the switching Off of the apparatus itself.
  • the enclosed drawing depicts a typical embodiment of a device in accordance with the present invention.
  • relay HI is excited through the following circuit:
  • Relay F3 is excited through the circuit: (4) Battery positive, contact l6, relay F3, operating winding, battery negative.
  • Relay F3 is held through the circuit: (5) Battery positive, cam contact 29, contact 2
  • the mains relay N4 is excited from the circuit: (6) Battery positive, contact 25, mains relay The motor is excited by the circuit:
  • the microphone T39 can now deliver a recording, or message, in the known manner, to the impulse-recording apparatus, through the circuit:
  • the speech control relay K5 is excited via the impulse amplifier JV34, i. e., the time-lag relay K5 remains excited whilst the speech impulses of the microphone T39 are arriving. If the person speaking now hangs up having completed the recording, i. e.. if the microphone T39 passes on no further speech impulses, the speech control relay K5 becomes dead.
  • circuit 1 l "becomes dead once more.
  • cam NKI3 will open contact 29, with the result that theholding current is cut off Through this, circuits of the relays F3 and N4 and the motorMHi also become dead, and the impulse-recording apparatus is ready for .further recordings.
  • the "device hereinsdescr-ibed and depicted prevents the sound-carrier from continuing .to run whilst not being used. On the contrary, its entire length is utilised .-for the recording .of .suc-
  • lay switch becomes operative after said comparativelyshort timeinterval, :and to switch 'ofi :xthe ;,r,earwar.d drive when the time delay switch --becomes operative after said longer time interval, whereby the return movement of the record carrier which is thus "produced substantially :co- Iincides with the forward-movement thereof duringlsaid short time interval.
  • a device for the .reccrjding of electrical audio signals in combination : a recording head, a record carrier cooperating with the recording iieadrforthe recording of the signals, a drive for advancing said record carrier with respect to the recording head, means for reversing the direction'of movementof the record carrier, 2. time delay control device (comprising electrical relay means responsive to the signals ibeing recorded,
  • driving means to be actuated by said relay means after the ceasing of signals to be recorded
  • control means operatively connected with said driving means and operable by the latter for a fixed interval a predetermined time after the actuation of the driving means, to operate .said means .iorreversing the direction of movement of the record carrier during said interval, the lengths of said predetermined time and of said interval being chosen, to effect a reverse movement of .”the record carrier substantially equal to its forward movement occurring after the ceasing of eig-na-lsto ,be recorded.
  • a subscriber station of a telephone sysitem in combination, a recording head, a record .carrier cooperating with the recording head for recording electrical audio signals arriving over the line, driving means for advancing the record carrier ina forward direction with respect to the recording head, further driving means for advancing the record carrier .in a :backward v:direc- .tion'with respect to the recording head, a ringing set responsive to ringing currents arriving over the line to start the first-named driving means, .a time delay control device comprising electrical relay means responsive to the signals being recorded, a source ofmotion to be started by said relay :means after the .cea-sing of audio signals arriving over the line, a first control means operatively connected with said source of motion to be rendered inoperative a predeterminedtime after the ceasing (if-audio signals :a-r-
  • the first-named driving means actuated independent of saidringing :set
  • said further driving means actuated toreverse the movement :of the record carrier andto stop this reverse movement, when the position of the record carrier substantially coincides with its position at the ceasing of :audio signals arriving over theline.

Description

May 15, 1951 M. HANDSCHIN 2,553,410
DEVICE FOR ELIMINATING SILENT PERIODS BETWEEN INTERMITTENT RECORDINGS Filed Jan. 17, 1947 v H, A 15 17 78 1.9 20 wvs q u 1 my 5 U32 v 5038 Tag spxas NK '2 NKI4 I ve NTOR;
Max Hana/sch! ATTORNEHS Patented May 15, 1951 DEVICE FOR ELIMINATING SILENT PERIODS BETWEEN INTERMITTENT RECORDINGS Max Handschin, Kusnacht-Zurich, Switzerland, assignor to Ipsophon Patentgesellschaft A.-G., of Glarus, a Swiss company Application January 17, 1947, Serial No. 722,603 In Switzerland January 19, 1946 3 Claims. (01. 179-1001) The known types of apparatus for the recording of impulses, as for instance, so-called dictaphones, telephonographs, and also the devices which record trains of impulses of other types on sound-carriers, possess the great disadvantage that if somewhat prolonged intervals elapse between the individual recordings, considerable portions of the sound-carrier are run off without being utilised. One result of this is that, in order to record given lengths of trains of impulses, the sound-carrier has to be made disproportionately long, and another is that, when reproduction takes place, it includes, naturally, the intervals which occurred during the recording process.
The object of the present invention is the creation of a device with which it is sought to eliminate these disadvantages. This object is achieved, in accordance with the invention, by the provision of electrical agencies for the supervision of the incoming impulses, which said electrical agencies, when the impulses cease to arrive, operate a time-limit coupling set to function for a pre-determined period, at the end of which agencies provided for the winding back of as much of the carrier which receives the impulse-recordings as has been run off in this pre-determined time are operated, the apparatus being switched ofi when the process of winding back is completed.
For the supervision of the incoming impulses a speech control relay with time-lag can conveniently be used. The time-limit coupling can also take the form of a time-lag relay. When the time-limit coupling comes into operation, cam-discs are set in rotation through gearing, the contacts of which cam-discs switch ofi the microphone at the end of a predetermined period and effect the switching off and, subsequently thereto, the winding back of the wiredrum and, when the winding back is completed, the switching Off of the apparatus itself.
The enclosed drawing depicts a typical embodiment of a device in accordance with the present invention.
Let it be assumed that the microphone T39 is connected to an impulse-recording apparatus, and that a calling current excites the relay R2 in the known manner through the circuit:
(1) Microphone T39, contact 11, condenser K031, relay R2, contact i8, microphone T39.
Through the excitation of the relay R2, relay HI is excited through the following circuit:
(2) Battery positive, contact 22, contact 2i, relay HI, operating winding, battery negative.
Relay I-ll locks via the circuit:
'Nl, battery negative.
(3) Battery positive, cam contact 28, contact 20, relay Hi, holding winding, battery negative. Through the excitation of relay Hi, relay F3 is excited, which through its contact 25 excites the mains relay N4. Through this the motor 'MIE is connected up to the mains and operates in the known manner gearing which is not depicted in the drawing.
Relay F3 is excited through the circuit: (4) Battery positive, contact l6, relay F3, operating winding, battery negative.
Relay F3 is held through the circuit: (5) Battery positive, cam contact 29, contact 2|, relay F3, holding winding, battery negative. The mains relay N4 is excited from the circuit: (6) Battery positive, contact 25, mains relay The motor is excited by the circuit:
(7) Mains, contact 26, motor Ml5, mains; 1
Through the excitation of relay Hi the 'for- Ward coupling VKB of the sound-carrier is en'- gaged with the forward-running gear. The wiredrum BT36 is driven forward in the direction shown by the arrow. The wire SD38 is wound from wire-drum DT3'I on to wire-drum DT36. The forward coupling is excited from the circuit:
(8) Battery positive, contact l9, forward coupling VKG, battery negative.
The microphone T39 can now deliver a recording, or message, in the known manner, to the impulse-recording apparatus, through the circuit:
(9) Microphone T39, contact 11, repeater U32, amplifier V33, speech recording-head SPK35 and back through amplifier V33, repeater U32, contact l8, to microphone T39.
Parallelly to the repeater U32, the speech control relay K5 is excited via the impulse amplifier JV34, i. e., the time-lag relay K5 remains excited whilst the speech impulses of the microphone T39 are arriving. If the person speaking now hangs up having completed the recording, i. e.. if the microphone T39 passes on no further speech impulses, the speech control relay K5 becomes dead.
Through the dropping of relay K5 contact 21 is closed and thus the time-limit coupling ZK8 is switched on through the circuit:
(10) Battery positive, contact 23, contact 21, time-limit coupling ZKB, battery negative.
Through the excitation of the time-limit coupling ZK8 the cam-discs NKS9, NKSIO and NKSH are driven by means of a gearing, in the direction indicated by the arrow. The soundcarrier (wire-drum DT36) continues to turn. It
.irom relay the speech recording head SPK35 and amplifiers V33 and JV34 (circuit 9).
If contact 30 is now closedby the cams I4, the reverse coupling RKT is engaged with thegearing. Wire-drum DT31 is unwoundin't-he direction opposite to that indicatedby arromior a period of, say 10 seconds 1ThEIEVQPSEBOHPHI-1g RKI is excited from the circuit:
, (11) Battery positive, reverse .coupling .RK'L battery negative.
If contact 30 is opened, circuit 1 l "becomes dead once more.
Finally, cam NKI3 will open contact 29, with the result that theholding current is cut off Through this, circuits of the relays F3 and N4 and the motorMHi also become dead, and the impulse-recording apparatus is ready for .further recordings.
The "device hereinsdescr-ibed and depicted prevents the sound-carrier from continuing .to run whilst not being used. On the contrary, its entire length is utilised .-for the recording .of .suc-
.cessively recorded impulse-signals or messages,
so that reproduction of the recording Without intervals 10f silence becomes possible.
.Iszlaim:
1. Adevicerfor the recording of electrical audio signals, comprising :a recording head, .a record 'narrier, an electrically operated drive for moving said record carrier forwardly and rearward-1y relatively :tosaid recording -.head, a time 1 delay switch :control means for said time delay switch responsive to :the ceasing of the signals to be recorded and becoming qperativeaafter -a com- -=paratively short interval ,and a comparatively longer time interval after the ceasing :oi itheisignals to berecordedand electrical circuit ,meams connecting said time delay switch with c :said ;driyeto.=switch off'theforward drive and to switch cnthe rearward'drive when the time .de-
lay switch becomes operative after said comparativelyshort timeinterval, :and to switch 'ofi :xthe ;,r,earwar.d drive when the time delay switch --becomes operative after said longer time interval, whereby the return movement of the record carrier which is thus "produced substantially :co- Iincides with the forward-movement thereof duringlsaid short time interval.
2. In a device for the .reccrjding of electrical audio signals in combination, :a recording head, a record carrier cooperating with the recording iieadrforthe recording of the signals, a drive for advancing said record carrier with respect to the recording head, means for reversing the direction'of movementof the record carrier, 2. time delay control device (comprising electrical relay means responsive to the signals ibeing recorded,
driving means to be actuated by said relay means after the ceasing of signals to be recorded, control means operatively connected with said driving means and operable by the latter for a fixed interval a predetermined time after the actuation of the driving means, to operate .said means .iorreversing the direction of movement of the record carrier during said interval, the lengths of said predetermined time and of said interval being chosen, to effect a reverse movement of ."the record carrier substantially equal to its forward movement occurring after the ceasing of eig-na-lsto ,be recorded.
a subscriber station of a telephone sysitem in combination, a recording head, a record .carrier cooperating with the recording head for recording electrical audio signals arriving over the line, driving means for advancing the record carrier ina forward direction with respect to the recording head, further driving means for advancing the record carrier .in a :backward v:direc- .tion'with respect to the recording head, a ringing set responsive to ringing currents arriving over the line to start the first-named driving means, .a time delay control device comprising electrical relay means responsive to the signals being recorded, a source ofmotion to be started by said relay :means after the .cea-sing of audio signals arriving over the line, a first control means operatively connected with said source of motion to be rendered inoperative a predeterminedtime after the ceasing (if-audio signals :a-r-
riving over the line and adapted to maintain its operative position :the first-named driving means actuated independent of saidringing :set, and a second control :means operativel-y con- --nected withsaid source of motion, to berendered operative duringa predetermined time, whensaid first control :means is in its inoperative position and adapted :to maintain its operative :position .said further driving means actuated toreverse the movement :of the record carrier andto stop this reverse movement, when the position of the record carrier substantially coincides with its position at the ceasing of :audio signals arriving over theline.
MAX HANDSCHIN.
REFERENCES CITED The vfollow-ing references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,454,157 Egerton May 8, 1923 1,971,028 Bothe Aug. 21, 1934 2,004,893 Hall June 11, 1 935 2,314,834 Kiel Mar. 28, 194.3 2,348,204 Brubaker May 9, 1944 FOREIGN PATENTS .Number Country Date 278,991 Italy Oct. 27, 19:30
US722603A 1946-01-19 1947-01-17 Device for eliminating silent periods between intermittent recordings Expired - Lifetime US2553410A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2553410X 1946-01-19

Publications (1)

Publication Number Publication Date
US2553410A true US2553410A (en) 1951-05-15

Family

ID=4570089

Family Applications (1)

Application Number Title Priority Date Filing Date
US722603A Expired - Lifetime US2553410A (en) 1946-01-19 1947-01-17 Device for eliminating silent periods between intermittent recordings

Country Status (2)

Country Link
US (1) US2553410A (en)
CH (1) CH261509A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777898A (en) * 1951-08-01 1957-01-15 Telephone Answering And Record Reproducing apparatus
US2802060A (en) * 1953-03-23 1957-08-06 Muzak Corp Apparatus for controlling audio transducing systems
US2814676A (en) * 1954-09-23 1957-11-26 Anderson Nichols & Company Tape-stepping device for high-speed magnetic recording
US2816167A (en) * 1951-08-22 1957-12-10 Daphne Invest Trust Telephonograph system and apparatus and method
US2817073A (en) * 1954-08-11 1957-12-17 John R Sorrells Multichannel tape system of storage
US2994746A (en) * 1957-09-19 1961-08-01 Mc Graw Edison Co Automatic recording machine
US3011030A (en) * 1957-09-03 1961-11-28 Ibm Voice actuated relay circuit
US3014991A (en) * 1957-01-29 1961-12-26 Mc Graw Edison Co Discriminatory control network for recording systems
US3049592A (en) * 1957-10-23 1962-08-14 Robosonic Nat Ind Corp Method of controlling a terminal circuit by remote control and remote cotnrol apparatus
US3136465A (en) * 1961-12-20 1964-06-09 Potter Instrument Co Inc Tape back-space device
US3171902A (en) * 1959-05-27 1965-03-02 Dictaphone Corp Apparatus and method for controlling remotely-operated dictation equipment
US3226478A (en) * 1960-12-16 1965-12-28 Automatic Elect Lab Automatic telephone answering and message recording system
US3248030A (en) * 1960-02-06 1966-04-26 Ibm Moving record control
US3461249A (en) * 1965-02-09 1969-08-12 Sony Corp Multi-track tape drive system for reversing tape travel after cessation of intelligence signal output from all channels
US3632893A (en) * 1969-09-02 1972-01-04 Lanier Electronic Lab Inc Control device for a transcribing machine with automatic recall
US4302630A (en) * 1979-02-01 1981-11-24 International Standard Electric Corporation Telephonic answering device
US4696030A (en) 1985-12-16 1987-09-22 Elscint Ltd. Patient operator intercom arrangements for magnetic resonance imaging systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960508C (en) * 1951-07-01 1957-03-21 Elektronik G M B H Deutsche Dictation machine, in particular magnetic-tone dictation machine
DE1022815B (en) * 1953-03-06 1958-01-16 Daniel Tefi Apparatebau Modulation-controlled switch-off device for sound reproduction devices

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1454157A (en) * 1918-07-19 1923-05-08 Western Electric Co Phonographic recording and reproducing system
US1971028A (en) * 1927-09-17 1934-08-21 Bothe Otto Acoustic advertising device
US2004893A (en) * 1933-07-20 1935-06-11 Hall Ferguson Controlling system for sound recording devices
US2314834A (en) * 1938-10-27 1943-03-23 Mary R Kiel Sound on film
US2348204A (en) * 1941-09-15 1944-05-09 Memovox Inc Sound reproducing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1454157A (en) * 1918-07-19 1923-05-08 Western Electric Co Phonographic recording and reproducing system
US1971028A (en) * 1927-09-17 1934-08-21 Bothe Otto Acoustic advertising device
US2004893A (en) * 1933-07-20 1935-06-11 Hall Ferguson Controlling system for sound recording devices
US2314834A (en) * 1938-10-27 1943-03-23 Mary R Kiel Sound on film
US2348204A (en) * 1941-09-15 1944-05-09 Memovox Inc Sound reproducing system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777898A (en) * 1951-08-01 1957-01-15 Telephone Answering And Record Reproducing apparatus
US2816167A (en) * 1951-08-22 1957-12-10 Daphne Invest Trust Telephonograph system and apparatus and method
US2802060A (en) * 1953-03-23 1957-08-06 Muzak Corp Apparatus for controlling audio transducing systems
US2817073A (en) * 1954-08-11 1957-12-17 John R Sorrells Multichannel tape system of storage
US2814676A (en) * 1954-09-23 1957-11-26 Anderson Nichols & Company Tape-stepping device for high-speed magnetic recording
US3014991A (en) * 1957-01-29 1961-12-26 Mc Graw Edison Co Discriminatory control network for recording systems
US3011030A (en) * 1957-09-03 1961-11-28 Ibm Voice actuated relay circuit
US2994746A (en) * 1957-09-19 1961-08-01 Mc Graw Edison Co Automatic recording machine
US3049592A (en) * 1957-10-23 1962-08-14 Robosonic Nat Ind Corp Method of controlling a terminal circuit by remote control and remote cotnrol apparatus
US3171902A (en) * 1959-05-27 1965-03-02 Dictaphone Corp Apparatus and method for controlling remotely-operated dictation equipment
US3248030A (en) * 1960-02-06 1966-04-26 Ibm Moving record control
US3226478A (en) * 1960-12-16 1965-12-28 Automatic Elect Lab Automatic telephone answering and message recording system
US3136465A (en) * 1961-12-20 1964-06-09 Potter Instrument Co Inc Tape back-space device
US3461249A (en) * 1965-02-09 1969-08-12 Sony Corp Multi-track tape drive system for reversing tape travel after cessation of intelligence signal output from all channels
US3632893A (en) * 1969-09-02 1972-01-04 Lanier Electronic Lab Inc Control device for a transcribing machine with automatic recall
US4302630A (en) * 1979-02-01 1981-11-24 International Standard Electric Corporation Telephonic answering device
US4696030A (en) 1985-12-16 1987-09-22 Elscint Ltd. Patient operator intercom arrangements for magnetic resonance imaging systems

Also Published As

Publication number Publication date
CH261509A (en) 1949-05-15

Similar Documents

Publication Publication Date Title
US2553410A (en) Device for eliminating silent periods between intermittent recordings
US2519568A (en) Method of operating telephonographs
US3858006A (en) Automatic telephone answering apparatus
GB1045528A (en) Improvements in or relating to absent subscriber service equipment
US3501592A (en) Telephone answering apparatus with cueing and warning signals
GB2075307A (en) Telephone-adapter apparatus for a dictation unit
GB756759A (en) Means for controlling telephone answering devices
US2558040A (en) Telephone message recording device
US2743315A (en) Control circuits for telephone answering and recording devices
GB1261468A (en) A method for remotely controlling an automatic telephone answering device and a telephone answering device for use by said method
GB1515176A (en) Recording and reproducing machines
US3511935A (en) Automatic telephone answering device with a remote control system
US3794767A (en) Control circuit for telephone answering set with a recorder using a conventional record-play switch
US2665337A (en) Telephonograph with answering device
US4192971A (en) Remote-controllable automatic telephone answering device
US3168620A (en) Electromechanical device for recording and reproducing telephone messages received in the absence of the subscriber
US2724016A (en) Telephone answering and recording device
US3999016A (en) Automatic telephone answering and message recording apparatus
US3511934A (en) Automatic answering and recording apparatus having remote control device for absence telephone
KR790000987B1 (en) Remote controllable telephon automatic answering device
US4837809A (en) Telephone answering device having immediate playback function
US2777899A (en) Telephonograph with device for repetition of announcements
US2085252A (en) Device for automatically transmitting and recording messages
US3705265A (en) Telephone answering device
SU306A1 (en) Telephone-awareness apparatus