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FR1149109A - Amplitude compression and expansion arrangements - Google Patents

Amplitude compression and expansion arrangements

Info

Publication number
FR1149109A
FR1149109A FR1149109DA FR1149109A FR 1149109 A FR1149109 A FR 1149109A FR 1149109D A FR1149109D A FR 1149109DA FR 1149109 A FR1149109 A FR 1149109A
Authority
FR
France
Prior art keywords
amplitude compression
expansion arrangements
arrangements
expansion
amplitude
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
Other languages
French (fr)
Inventor
Thomas Frederick St Hargreaves
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1149109A publication Critical patent/FR1149109A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/02—Volume compression or expansion in amplifiers having discharge tubes
    • H03G7/04—Volume compression or expansion in amplifiers having discharge tubes incorporating negative feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
FR1149109D 1952-08-28 1953-08-27 Amplitude compression and expansion arrangements Expired FR1149109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2165252A GB722371A (en) 1952-08-28 1952-08-28 Improvements in or relating to signal compression and expansion arrangements for electric communication circuits

Publications (1)

Publication Number Publication Date
FR1149109A true FR1149109A (en) 1957-12-20

Family

ID=10166530

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1149109D Expired FR1149109A (en) 1952-08-28 1953-08-27 Amplitude compression and expansion arrangements

Country Status (3)

Country Link
CH (1) CH316562A (en)
FR (1) FR1149109A (en)
GB (1) GB722371A (en)

Also Published As

Publication number Publication date
GB722371A (en) 1955-01-26
CH316562A (en) 1956-10-15

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