ZA742153B - Improvements in or relating to frequency-differential phase modulation - Google Patents

Improvements in or relating to frequency-differential phase modulation

Info

Publication number
ZA742153B
ZA742153B ZA00742153A ZA742153A ZA742153B ZA 742153 B ZA742153 B ZA 742153B ZA 00742153 A ZA00742153 A ZA 00742153A ZA 742153 A ZA742153 A ZA 742153A ZA 742153 B ZA742153 B ZA 742153B
Authority
ZA
South Africa
Prior art keywords
relating
frequency
phase modulation
differential phase
differential
Prior art date
Application number
ZA00742153A
Other languages
English (en)
Inventor
E Burger
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ZA742153B publication Critical patent/ZA742153B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2075—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the change in carrier phase

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Networks Using Active Elements (AREA)
ZA00742153A 1973-05-15 1974-04-04 Improvements in or relating to frequency-differential phase modulation ZA742153B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2324542A DE2324542C3 (de) 1973-05-15 1973-05-15 Schaltungsanordnung zur frequenzdifferenziellen Phasenmodulation

Publications (1)

Publication Number Publication Date
ZA742153B true ZA742153B (en) 1975-03-26

Family

ID=5880999

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00742153A ZA742153B (en) 1973-05-15 1974-04-04 Improvements in or relating to frequency-differential phase modulation

Country Status (13)

Country Link
US (1) US3921103A (ja)
JP (1) JPS5019346A (ja)
BE (1) BE815066A (ja)
DE (1) DE2324542C3 (ja)
DK (1) DK141859C (ja)
FI (1) FI59517C (ja)
FR (1) FR2230133B1 (ja)
GB (1) GB1445185A (ja)
IT (1) IT1012241B (ja)
LU (1) LU70063A1 (ja)
NL (1) NL7405688A (ja)
NO (1) NO145453C (ja)
ZA (1) ZA742153B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130731A (en) * 1976-12-29 1978-12-19 International Mobile Machines Incorporated Portable telephone system
DE2802784A1 (de) * 1978-01-23 1979-07-26 Siemens Ag Schaltungsanordnung zum korrigieren von frequenzfehlern bei einer uebertragung von daten
JPH0310570Y2 (ja) * 1985-02-20 1991-03-15
JPH0310569Y2 (ja) * 1985-02-20 1991-03-15
JPH0310568Y2 (ja) * 1985-02-20 1991-03-15
US4807261A (en) * 1987-10-26 1989-02-21 Motorola, Inc. Automatic channel polarity detection and correction arrangement and method
US8416880B2 (en) * 2008-03-31 2013-04-09 Nxp B.V. Digital modulator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131363A (en) * 1960-05-18 1964-04-28 Collins Radio Co Instantaneous phase-pulse modulator
US3341776A (en) * 1964-01-13 1967-09-12 Collins Radio Co Error sensitive binary transmission system wherein four channels are transmitted via one carrier wave
FR1403768A (fr) * 1964-05-12 1965-06-25 Cit Alcatel Télégraphie à modulation trivalente
US3739277A (en) * 1969-06-02 1973-06-12 Hallicrafters Co Digital data transmission system utilizing phase shift keying
US3619503A (en) * 1969-11-18 1971-11-09 Int Communications Corp Phase and amplitude modulated modem
US3816657A (en) * 1972-10-12 1974-06-11 Nasa Differential phase-shift-keyed communication system

Also Published As

Publication number Publication date
GB1445185A (en) 1976-08-04
DK141859B (da) 1980-06-30
BE815066A (fr) 1974-11-18
NO145453C (no) 1982-04-28
NL7405688A (ja) 1974-11-19
FR2230133A1 (ja) 1974-12-13
LU70063A1 (ja) 1975-02-24
NO145453B (no) 1981-12-14
FI59517B (fi) 1981-04-30
DE2324542C3 (de) 1979-01-25
US3921103A (en) 1975-11-18
JPS5019346A (ja) 1975-02-28
DE2324542B2 (de) 1978-05-24
FI59517C (fi) 1981-08-10
FR2230133B1 (ja) 1977-06-24
DE2324542A1 (de) 1974-12-05
NO741610L (no) 1974-11-18
IT1012241B (it) 1977-03-10
DK141859C (da) 1980-11-17

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