FR1506086A - Circuits de tonalité pour signaux de commande et de données - Google Patents

Circuits de tonalité pour signaux de commande et de données

Info

Publication number
FR1506086A
FR1506086A FR8246A FR06008246A FR1506086A FR 1506086 A FR1506086 A FR 1506086A FR 8246 A FR8246 A FR 8246A FR 06008246 A FR06008246 A FR 06008246A FR 1506086 A FR1506086 A FR 1506086A
Authority
FR
France
Prior art keywords
control
data signals
tone circuits
tone
circuits
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
FR8246A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR1506086A publication Critical patent/FR1506086A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/10—Telephonic communication systems specially adapted for combination with other electrical systems with dictation recording and playback systems
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Telephonic Communication Services (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Amplifiers (AREA)
FR8246A 1965-12-30 1966-12-15 Circuits de tonalité pour signaux de commande et de données Expired FR1506086A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US517653A US3405234A (en) 1965-12-30 1965-12-30 Tone circuits for control and data signals

Publications (1)

Publication Number Publication Date
FR1506086A true FR1506086A (fr) 1967-12-15

Family

ID=24060670

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8246A Expired FR1506086A (fr) 1965-12-30 1966-12-15 Circuits de tonalité pour signaux de commande et de données

Country Status (4)

Country Link
US (1) US3405234A (fr)
DE (1) DE1462708B2 (fr)
FR (1) FR1506086A (fr)
GB (1) GB1159787A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539829A (en) * 1968-06-17 1970-11-10 Ibm Tone detection circuit
US3675513A (en) * 1970-07-24 1972-07-11 Bell Telephone Labor Inc Communications system for alphanumeric information employing audio tone signalling
US3725589A (en) * 1972-02-14 1973-04-03 M Golden Remote-control system for intelligence-recording apparatus with control tone eliminating switching
US4620063A (en) * 1972-07-05 1986-10-28 Todd Leonard M Ring signal detector
US3806664A (en) * 1972-09-13 1974-04-23 Bell Telephone Labor Inc Tone receiver with detection of each tone in a precise frequency band
US4020287A (en) * 1975-03-03 1977-04-26 Allen-Bradley Company Telephonic troubleshooting circuit for electric motor drives
US4075426A (en) * 1976-03-12 1978-02-21 Harvey Mitchell Gould Parallel silent communicator
USRE32342E (en) * 1976-04-20 1987-01-27 Dictaphone Corporation Instruction indicating apparatus for a record and/or playback device
US4410923A (en) * 1981-01-09 1983-10-18 Dictaphone Corporation Display apparatus for recording and/or playback device
US4654881A (en) * 1984-01-04 1987-03-31 Motorola, Inc. Remote control system having symmetrical tone, send/receive signaling circuits for radio communications
US4845379A (en) * 1988-07-05 1989-07-04 International Business Machines Corporation Sense circuit for detecting absence of a pulse train
JPH0376043A (ja) * 1989-08-16 1991-04-02 Asahi Optical Co Ltd 記録再生装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684996A (en) * 1947-03-17 1954-07-27 Martha W C Potts Combined telephone and telegraph system
GB898440A (en) * 1958-06-30 1962-06-06 Unilever Ltd Apparatus for controlling dictating machines
US3317670A (en) * 1963-05-28 1967-05-02 Bell Telephone Labor Inc Receiver for detecting supervisory tones superimposed on fsk binary data signals

Also Published As

Publication number Publication date
US3405234A (en) 1968-10-08
DE1462708A1 (de) 1970-03-26
DE1462708B2 (de) 1975-10-23
GB1159787A (en) 1969-07-30

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