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.)
Publication of BE486276ApublicationCriticalpatent/BE486276A/xx
H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
H03J7/02—Automatic frequency control
H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
H03J7/042—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant with reactance tube
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B7/00—Radio transmission systems, i.e. using radiation field
H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
H04B7/12—Frequency diversity
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
H04L27/14—Demodulator circuits; Receiver circuits
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