GB485007A - Improvements in radio receiving apparatus - Google Patents

Improvements in radio receiving apparatus

Info

Publication number
GB485007A
GB485007A GB30969/36A GB3096936A GB485007A GB 485007 A GB485007 A GB 485007A GB 30969/36 A GB30969/36 A GB 30969/36A GB 3096936 A GB3096936 A GB 3096936A GB 485007 A GB485007 A GB 485007A
Authority
GB
United Kingdom
Prior art keywords
indicator
nov
cone
receiving apparatus
radio receiving
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
GB30969/36A
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.)
PILOT RADIO CORP
Original Assignee
PILOT RADIO 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 PILOT RADIO CORP filed Critical PILOT RADIO CORP
Publication of GB485007A publication Critical patent/GB485007A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

485,007. Wireless receiving-apparatus. PILOT RADIO CORPORATION. Nov. 12, 1936, No. 30969. Convention date, Nov. 12, 1935. [Class 40 (v)] A visual resonance indicator is disposed within the cone of a loud-speaker mounted on the front panel of a wireless receiver, the supporting casing of the indicator being so designed as to modify the field pattern of the acoustic response of the reproducer. The indicator 20 is of the cathode-ray type mounted in a conical casing 16 which is supported within the cone S by members 17. This reduces the high frequency response and gives a flatter frequencyresponse characteristic.
GB30969/36A 1935-11-12 1936-11-12 Improvements in radio receiving apparatus Expired GB485007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49334A US2079752A (en) 1935-11-12 1935-11-12 Radio receiving apparatus

Publications (1)

Publication Number Publication Date
GB485007A true GB485007A (en) 1938-05-12

Family

ID=21959259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30969/36A Expired GB485007A (en) 1935-11-12 1936-11-12 Improvements in radio receiving apparatus

Country Status (2)

Country Link
US (1) US2079752A (en)
GB (1) GB485007A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE447048A (en) * 1941-09-04
US2501968A (en) * 1946-03-25 1950-03-28 Emil J Sassin Combined lighting fixture and radio loud-speaker
US2611830A (en) * 1950-02-14 1952-09-23 Permoflux Corp Transducer

Also Published As

Publication number Publication date
US2079752A (en) 1937-05-11

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