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 Lorenz C AgfiledCriticalLorenz C Ag
Publication of CH256125ApublicationCriticalpatent/CH256125A/de
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
H04L27/22—Demodulator circuits; Receiver circuits
H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking
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
H04L27/06—Demodulator circuits; Receiver circuits
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Amplifiers
(AREA)
CH256125D1943-02-121943-12-28Empfangseinrichtung für Anlagen der Phasenumkehr-Wechselstromtelegraphie.
CH256125A
(de)
Schaltung zur gemeinsamen Erzeugung von Mikrowellen-Sendeschwingungen und Mikrowellen-Empfangsueberlagerer-schwingungen fuer Radargeraete mit Ausnuetzung des Dopplereffektes
Signaluebertragungseinrichtung, insbesondere Telegrafenanlage, bei der die Zeichen ueber Kurzwellenuebertragungswege frequenzmoduliert ueber-tragen werden