GB1187505A - Improvements in or relating to Digital Frequency-Modulated Wave Generators - Google Patents

Improvements in or relating to Digital Frequency-Modulated Wave Generators

Info

Publication number
GB1187505A
GB1187505A GB3096767A GB3096767A GB1187505A GB 1187505 A GB1187505 A GB 1187505A GB 3096767 A GB3096767 A GB 3096767A GB 3096767 A GB3096767 A GB 3096767A GB 1187505 A GB1187505 A GB 1187505A
Authority
GB
United Kingdom
Prior art keywords
modulated wave
relating
digital frequency
counter
wave generators
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
GB3096767A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of GB1187505A publication Critical patent/GB1187505A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

1187505 Frequency-modulated wave generator MARCONI CO Ltd 5 July 1967 [2 Sept 1966] 30967/67 Headings G4D D7X D6Y D6C1 and D6C2 A frequency-modulated wave generator is controlled digitally, a basic-frequency oscillator 2 feeding a counter 1 which produces an output at a predetermined number, said predetermined number being set up on a register 3 and being variable by a device 5 according to a programme each time a comparator 4 shows parity between the number registered in the counter 1 and the register 3. The comparator resets the counter I and steps the programme.
GB3096767A 1966-09-02 1967-07-05 Improvements in or relating to Digital Frequency-Modulated Wave Generators Expired GB1187505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU10567/66A AU413692B2 (en) 1966-09-02 1966-09-02 Digital frequency-modulated wave generator

Publications (1)

Publication Number Publication Date
GB1187505A true GB1187505A (en) 1970-04-08

Family

ID=3701516

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3096767A Expired GB1187505A (en) 1966-09-02 1967-07-05 Improvements in or relating to Digital Frequency-Modulated Wave Generators

Country Status (3)

Country Link
AU (1) AU413692B2 (en)
DE (1) DE1566971A1 (en)
GB (1) GB1187505A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203543A (en) * 1977-10-18 1980-05-20 International Business Machines Corporation Pattern generation system
GB2156682A (en) * 1984-03-13 1985-10-16 Bio Medical Res Ltd Electrical stimulation of muscle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4203543A (en) * 1977-10-18 1980-05-20 International Business Machines Corporation Pattern generation system
GB2156682A (en) * 1984-03-13 1985-10-16 Bio Medical Res Ltd Electrical stimulation of muscle

Also Published As

Publication number Publication date
AU413692B2 (en) 1971-06-02
DE1566971A1 (en) 1970-08-06
AU1056766A (en) 1968-10-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee