GB284665A - - Google Patents

Info

Publication number
GB284665A
GB284665A GB2061/28A GB206128A GB284665A GB 284665 A GB284665 A GB 284665A GB 2061/28 A GB2061/28 A GB 2061/28A GB 206128 A GB206128 A GB 206128A GB 284665 A GB284665 A GB 284665A
Authority
GB
United Kingdom
Prior art keywords
frequency
stations
varied
phase
transmitting
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
GB2061/28A
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.)
C Lorenz AG
Original Assignee
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 C Lorenz AG filed Critical C Lorenz AG
Publication of GB284665A publication Critical patent/GB284665A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

284,665. Lorenz Akt.-Ges., C. Feb. 3, 1927, [Convention date]. Drawings to Specification. Fading, preventing.-In wireless broadcasting systems of the kind in which a number of stations all using the same wave-length and transmitting the same programme are controlled by a central station, means are provided for overcoming the interference which causes weak or distorted reception in certain zones. With this object, the phase, amplitude, or frequency of one or more of the transmitting stations is periodically varied at a supersonic frequency. The frequency or phase may be varied by means of iron-cored choke coils in the transmission circuits, the saturation of which is varied by an alternating current of the desired frequency; or rotary coils or condensers may be used. Amplitude variations can be effected by modulating the carrier wave of one or more of the stations by a supersonic frequency.
GB2061/28A 1927-02-03 1928-01-21 Expired GB284665A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE284665T 1927-02-03

Publications (1)

Publication Number Publication Date
GB284665A true GB284665A (en) 1928-06-14

Family

ID=31893862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2061/28A Expired GB284665A (en) 1927-02-03 1928-01-21

Country Status (3)

Country Link
US (1) US1877858A (en)
FR (1) FR647542A (en)
GB (1) GB284665A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545511A (en) * 1945-05-02 1951-03-20 Brinkley John Raymond Radio communication system
BE471797A (en) * 1945-08-27
US2579882A (en) * 1947-06-05 1951-12-25 Rca Corp Interference suppression in radio signaling systems
US2647257A (en) * 1948-01-22 1953-07-28 Sperry Corp Nonambiguous cycle matching system
US3004153A (en) * 1957-01-04 1961-10-10 Alford Andrew Circuit for use with a plurality of antennas
JPS547204A (en) * 1977-06-20 1979-01-19 Nippon Telegr & Teleph Corp <Ntt> Simultaneous transmission system for plural stations

Also Published As

Publication number Publication date
US1877858A (en) 1932-09-20
FR647542A (en) 1928-11-26

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