DE3267609D1 - Data under voice communications system - Google Patents

Data under voice communications system

Info

Publication number
DE3267609D1
DE3267609D1 DE8282107968T DE3267609T DE3267609D1 DE 3267609 D1 DE3267609 D1 DE 3267609D1 DE 8282107968 T DE8282107968 T DE 8282107968T DE 3267609 T DE3267609 T DE 3267609T DE 3267609 D1 DE3267609 D1 DE 3267609D1
Authority
DE
Germany
Prior art keywords
communications system
data under
voice communications
thumping
under voice
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
DE8282107968T
Other languages
English (en)
Inventor
Donald W Moses
Charles Hustig
Ray D Ballard
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.)
Applied Spectrum Technologies Inc
Original Assignee
Applied Spectrum Technologies Inc
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 Applied Spectrum Technologies Inc filed Critical Applied Spectrum Technologies Inc
Application granted granted Critical
Publication of DE3267609D1 publication Critical patent/DE3267609D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
DE8282107968T 1981-09-03 1982-08-30 Data under voice communications system Expired DE3267609D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/299,173 US4425661A (en) 1981-09-03 1981-09-03 Data under voice communications system

Publications (1)

Publication Number Publication Date
DE3267609D1 true DE3267609D1 (en) 1986-01-02

Family

ID=23153609

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282107968T Expired DE3267609D1 (en) 1981-09-03 1982-08-30 Data under voice communications system

Country Status (7)

Country Link
US (1) US4425661A (de)
EP (1) EP0074054B1 (de)
JP (1) JPS5851638A (de)
AT (1) ATE16669T1 (de)
AU (1) AU555058B2 (de)
CA (1) CA1185025A (de)
DE (1) DE3267609D1 (de)

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Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
US4425661A (en) 1984-01-10
ATE16669T1 (de) 1985-12-15
EP0074054B1 (de) 1985-11-21
JPS5851638A (ja) 1983-03-26
CA1185025A (en) 1985-04-02
AU555058B2 (en) 1986-09-11
EP0074054A1 (de) 1983-03-16
AU9146082A (en) 1984-06-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee