CH213823A - Electrical apparatus with device for separating two frequencies. - Google Patents

Electrical apparatus with device for separating two frequencies.

Info

Publication number
CH213823A
CH213823A CH213823DA CH213823A CH 213823 A CH213823 A CH 213823A CH 213823D A CH213823D A CH 213823DA CH 213823 A CH213823 A CH 213823A
Authority
CH
Switzerland
Prior art keywords
frequencies
separating
electrical apparatus
electrical
Prior art date
Application number
Other languages
German (de)
Inventor
America Radio Corporation Of
Original Assignee
Rca Corp
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 Rca Corp filed Critical Rca Corp
Publication of CH213823A publication Critical patent/CH213823A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/34—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source
    • H03H11/342—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source particularly adapted for use in common antenna systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1638—Special circuits to enhance selectivity of receivers not otherwise provided for
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Circuits Of Receivers In General (AREA)
  • Amplifiers (AREA)
CH213823D 1938-10-07 1939-10-06 Electrical apparatus with device for separating two frequencies. CH213823A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US233711A US2221104A (en) 1938-10-07 1938-10-07 Television receiver

Publications (1)

Publication Number Publication Date
CH213823A true CH213823A (en) 1941-03-15

Family

ID=22878391

Family Applications (1)

Application Number Title Priority Date Filing Date
CH213823D CH213823A (en) 1938-10-07 1939-10-06 Electrical apparatus with device for separating two frequencies.

Country Status (5)

Country Link
US (1) US2221104A (en)
CH (1) CH213823A (en)
FR (1) FR860593A (en)
GB (1) GB615402A (en)
NL (1) NL62094C (en)

Also Published As

Publication number Publication date
GB615402A (en) 1949-01-05
NL62094C (en)
US2221104A (en) 1940-11-12
FR860593A (en) 1941-01-18

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