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GB233008A - Improvements in telephone receivers and like instruments particularly for use in wireless receiving apparatus - Google Patents

Improvements in telephone receivers and like instruments particularly for use in wireless receiving apparatus

Info

Publication number
GB233008A
GB233008A GB13924A GB13924A GB233008A GB 233008 A GB233008 A GB 233008A GB 13924 A GB13924 A GB 13924A GB 13924 A GB13924 A GB 13924A GB 233008 A GB233008 A GB 233008A
Authority
GB
United Kingdom
Prior art keywords
receiving apparatus
wireless receiving
telephone receivers
instruments particularly
instruments
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
GB13924A
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.)
CLEVELAND HAROLD HOOD
Original Assignee
CLEVELAND HAROLD HOOD
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 CLEVELAND HAROLD HOOD filed Critical CLEVELAND HAROLD HOOD
Priority to GB13924A priority Critical patent/GB233008A/en
Publication of GB233008A publication Critical patent/GB233008A/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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2861—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn
    • H04R1/2865—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn for loudspeaker transducers
    • 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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests

Landscapes

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

Abstract

233,008. Hood, C. H. Jan. 3, 1924. Horns, construction of.-In a loud-speaker in which sound is taken from each side of the diaphragm to a separate horn, the two horns may be unequal in size and arranged as in Fig. 3, or one may be wholly or partly inside the other.
GB13924A 1924-01-03 1924-01-03 Improvements in telephone receivers and like instruments particularly for use in wireless receiving apparatus Expired GB233008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13924A GB233008A (en) 1924-01-03 1924-01-03 Improvements in telephone receivers and like instruments particularly for use in wireless receiving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13924A GB233008A (en) 1924-01-03 1924-01-03 Improvements in telephone receivers and like instruments particularly for use in wireless receiving apparatus

Publications (1)

Publication Number Publication Date
GB233008A true GB233008A (en) 1925-05-04

Family

ID=9699094

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13924A Expired GB233008A (en) 1924-01-03 1924-01-03 Improvements in telephone receivers and like instruments particularly for use in wireless receiving apparatus

Country Status (1)

Country Link
GB (1) GB233008A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004052050A1 (en) * 2002-12-02 2004-06-17 Plantronics, Inc. Personal communication method and apparatus with acoustic stray field cancellation
US20220337931A1 (en) * 2021-04-16 2022-10-20 Kingston Technology Corporation Acoustic chamber and venting systems and methods

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004052050A1 (en) * 2002-12-02 2004-06-17 Plantronics, Inc. Personal communication method and apparatus with acoustic stray field cancellation
US7499555B1 (en) 2002-12-02 2009-03-03 Plantronics, Inc. Personal communication method and apparatus with acoustic stray field cancellation
US20220337931A1 (en) * 2021-04-16 2022-10-20 Kingston Technology Corporation Acoustic chamber and venting systems and methods

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