GB1205400A - Frequency modulation - Google Patents

Frequency modulation

Info

Publication number
GB1205400A
GB1205400A GB56285/67A GB5628567A GB1205400A GB 1205400 A GB1205400 A GB 1205400A GB 56285/67 A GB56285/67 A GB 56285/67A GB 5628567 A GB5628567 A GB 5628567A GB 1205400 A GB1205400 A GB 1205400A
Authority
GB
United Kingdom
Prior art keywords
frequency
oscillator
dec
phase angle
data transmission
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
GB56285/67A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB1205400A publication Critical patent/GB1205400A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB56285/67A 1966-12-12 1967-12-11 Frequency modulation Expired GB1205400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1698766 1966-12-12

Publications (1)

Publication Number Publication Date
GB1205400A true GB1205400A (en) 1970-09-16

Family

ID=20303094

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56285/67A Expired GB1205400A (en) 1966-12-12 1967-12-11 Frequency modulation

Country Status (4)

Country Link
US (1) US3508136A (OSRAM)
DK (1) DK132100C (OSRAM)
GB (1) GB1205400A (OSRAM)
NO (1) NO119542B (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601710A (en) * 1969-08-22 1971-08-24 Bell Telephone Labor Inc Digital detector for binary fsk signaling
US3611209A (en) * 1969-12-11 1971-10-05 Bell Telephone Labor Inc Digital filter frequency shift modulator
US3808533A (en) * 1971-09-10 1974-04-30 Us Navy High volume, binary data transmission system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160812A (en) * 1961-11-09 1964-12-08 Scantlin Electronics Inc Composite transmission system utilizing phase shift and amplitude modulation
US3408572A (en) * 1965-07-06 1968-10-29 Digitronics Corp Controlled amplitude frequency shift signal generator
US3328724A (en) * 1966-01-26 1967-06-27 John L Way Voltage controlled free-running flip-flop oscillator

Also Published As

Publication number Publication date
DK132100B (da) 1975-10-20
US3508136A (en) 1970-04-21
DK132100C (da) 1976-03-15
NO119542B (OSRAM) 1970-06-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees