GB438177A - Improvements in receiving apparatus for wireless telegraphy - Google Patents

Improvements in receiving apparatus for wireless telegraphy

Info

Publication number
GB438177A
GB438177A GB2534/35A GB253435A GB438177A GB 438177 A GB438177 A GB 438177A GB 2534/35 A GB2534/35 A GB 2534/35A GB 253435 A GB253435 A GB 253435A GB 438177 A GB438177 A GB 438177A
Authority
GB
United Kingdom
Prior art keywords
rejector circuit
coil
receiving apparatus
rejector
circuit
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2534/35A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Publication of GB438177A publication Critical patent/GB438177A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

438,177. Wireless receiving-apparatus. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Jan. 25, 1935, No. 2534. Convention date, Feb. 2, 1934. [Class 40 (v)] In a wireless telegraph receiver a low - frequency filtering rejector circuit is disposed between high-frequency and lowfrequency amplifying portions and the rejector circuit is coupled, with other than unity ratio, by means of a tapping on the coil of the rejector circuit. The Figure shows a rejector circuit S following the detector A and connected through a transformer T1. The core material of the coil in the rejector circuit is preferably of high permeability such as permalloy.
GB2534/35A 1934-02-02 1935-01-25 Improvements in receiving apparatus for wireless telegraphy Expired GB438177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE438177X 1934-02-02

Publications (1)

Publication Number Publication Date
GB438177A true GB438177A (en) 1935-11-12

Family

ID=6507129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2534/35A Expired GB438177A (en) 1934-02-02 1935-01-25 Improvements in receiving apparatus for wireless telegraphy

Country Status (1)

Country Link
GB (1) GB438177A (en)

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