Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L27/00—Modulated-carrier systems
  • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
  • H04L27/04—Modulator circuits; Transmitter circuits
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03C—MODULATION
  • H03C1/00—Amplitude modulation
  • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
  • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
  • H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
  • H03C1/545—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using bipolar transistors
• • 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
  • H04L27/2057—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 with a separate carrier for each phase state

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Amplifiers (AREA)
• Amplitude Modulation (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=5712810

Family Applications (1)

Country Status (9)

• 1968
  • 1968-11-08 DE DE19681807879 patent/DE1807879A1/de active Pending
• 1969
  • 1969-10-23 FR FR6936414A patent/FR2022847A1/fr not_active Withdrawn
  • 1969-10-29 NL NL6916308A patent/NL6916308A/xx unknown
  • 1969-11-06 LU LU59774D patent/LU59774A1/xx unknown
  • 1969-11-06 AT AT1045169A patent/AT307512B/de not_active IP Right Cessation
  • 1969-11-07 SE SE1531369A patent/SE346439B/xx unknown
  • 1969-11-07 BE BE741410D patent/BE741410A/xx unknown
  • 1969-11-07 CH CH1657269A patent/CH500631A/de not_active IP Right Cessation
  • 1969-11-07 GB GB5475969A patent/GB1283751A/en not_active Expired

Also Published As

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