NO133170B - - Google Patents

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Publication number
NO133170B
NO133170B NO1544/73A NO154473A NO133170B NO 133170 B NO133170 B NO 133170B NO 1544/73 A NO1544/73 A NO 1544/73A NO 154473 A NO154473 A NO 154473A NO 133170 B NO133170 B NO 133170B
Authority
NO
Norway
Prior art keywords
signal
frequency
data signal
pulse
time pulse
Prior art date
Application number
NO1544/73A
Other languages
English (en)
Norwegian (no)
Other versions
NO133170C (xx
Inventor
O Mathiesen
Original Assignee
Standard Tel Kabelfab As
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 Standard Tel Kabelfab As filed Critical Standard Tel Kabelfab As
Priority to NO1544/73A priority Critical patent/NO133170C/no
Priority to US436309A priority patent/US3930121A/en
Priority to ES425145A priority patent/ES425145A1/es
Priority to DE2417370A priority patent/DE2417370A1/de
Priority to IT21104/74A priority patent/IT1019604B/it
Priority to CH517074A priority patent/CH574690A5/xx
Priority to FR7412737A priority patent/FR2225891B1/fr
Publication of NO133170B publication Critical patent/NO133170B/no
Publication of NO133170C publication Critical patent/NO133170C/no

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
    • H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
NO1544/73A 1973-04-13 1973-04-13 NO133170C (xx)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NO1544/73A NO133170C (xx) 1973-04-13 1973-04-13
US436309A US3930121A (en) 1973-04-13 1974-01-24 Method for converting a binary coded data signal into a P-FSK coded signal
ES425145A ES425145A1 (es) 1973-04-13 1974-04-09 Un metodo para convertir una senal de datos en codigo bina-rio en otra senal en codigo de dos impulsos con la misma po-laridad y otros dos con polaridad opuesta por cada bit.
DE2417370A DE2417370A1 (de) 1973-04-13 1974-04-09 Binaer-codewandler
IT21104/74A IT1019604B (it) 1973-04-13 1974-04-10 Apparato per la conversione di un segnale di dati in codice binario in un segnale in codice p.fsk
CH517074A CH574690A5 (xx) 1973-04-13 1974-04-11
FR7412737A FR2225891B1 (xx) 1973-04-13 1974-04-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO1544/73A NO133170C (xx) 1973-04-13 1973-04-13

Publications (2)

Publication Number Publication Date
NO133170B true NO133170B (xx) 1975-12-08
NO133170C NO133170C (xx) 1976-03-17

Family

ID=19878271

Family Applications (1)

Application Number Title Priority Date Filing Date
NO1544/73A NO133170C (xx) 1973-04-13 1973-04-13

Country Status (7)

Country Link
US (1) US3930121A (xx)
CH (1) CH574690A5 (xx)
DE (1) DE2417370A1 (xx)
ES (1) ES425145A1 (xx)
FR (1) FR2225891B1 (xx)
IT (1) IT1019604B (xx)
NO (1) NO133170C (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132951A (en) * 1977-04-27 1979-01-02 Texas Instruments Incorporated Digital processor controlled radio system
FR2399763A1 (fr) * 1977-08-03 1979-03-02 Trt Telecom Radio Electr Dispositif numerique pour diviser la frequence d'echantillonnage dans un signal code au moyen de la modulation delta
US4156867A (en) * 1977-09-06 1979-05-29 Motorola, Inc. Data communication system with random and burst error protection and correction
US4307381A (en) * 1977-11-04 1981-12-22 Discovision Associates Method and means for encoding and decoding digital data
FR2432246A1 (fr) * 1978-07-26 1980-02-22 Cit Alcatel Procede et circuit de decodage d'un signal binaire code en cmi
US4393501A (en) * 1981-02-26 1983-07-12 General Electric Company Line protocol for communication system
US4414675A (en) * 1981-08-05 1983-11-08 Motorola, Inc. MSK and OK-QPSK signal demodulator
US4527275A (en) * 1982-02-12 1985-07-02 Arinc Research Corporation Correlation data communications system
JPS5954359A (ja) * 1982-09-22 1984-03-29 Hitachi Ltd デイジタルデ−タ転送方式
US4528675A (en) * 1983-08-31 1985-07-09 General Signal Corporation FSK modem for bidirectional loop communications system
US4569060A (en) * 1983-08-31 1986-02-04 General Signal Corporation FSK Coding method and apparatus involving multiples and submultiples of a given frequency
NL8402319A (nl) * 1984-07-23 1986-02-17 Philips Nv Inrichting voor het genereren van een hoekgemoduleerd draaggolfsignaal van constante amplitude in responsie op datasignalen.
US4669095A (en) * 1985-09-27 1987-05-26 Motorola, Inc. Maximum distance from zero crossing MSK demodulator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165583A (en) * 1960-11-21 1965-01-12 Bell Telephone Labor Inc Two-tone transmission system for digital data
US3102238A (en) * 1961-11-13 1963-08-27 Collins Radio Co Encoder with one frequency indicating one binary logic state and another frequency indicating other state
US3454718A (en) * 1966-10-03 1969-07-08 Xerox Corp Fsk transmitter with transmission of the same number of cycles of each carrier frequency

Also Published As

Publication number Publication date
DE2417370A1 (de) 1974-10-31
FR2225891B1 (xx) 1980-06-27
NO133170C (xx) 1976-03-17
US3930121A (en) 1975-12-30
CH574690A5 (xx) 1976-04-15
IT1019604B (it) 1977-11-30
ES425145A1 (es) 1976-06-16
FR2225891A1 (xx) 1974-11-08

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