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
  • H04L27/16—Frequency regulation arrangements
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
  • H01J9/40—Closing vessels
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
  • 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

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Manufacturing & Machinery (AREA)
• Tubes (AREA)
• Vessels And Coating Films For Discharge Lamps (AREA)
• Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19870863

Family Applications (1)

Country Status (6)

• 0
  • NL NL60409D patent/NL60409C/xx active
  • BE BE464099D patent/BE464099A/xx unknown
  • FR FR927295D patent/FR927295A/fr not_active Expired
• 1946
  • 1946-03-21 CH CH252910D patent/CH252910A/de unknown
• 1947
  • 1947-02-26 GB GB5572/47A patent/GB625186A/en not_active Expired
• 1948
  • 1948-12-04 DE DEP23504A patent/DE811007C/de not_active Expired

Also Published As

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