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 apparatusInfo
- 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
Links
- 238000010276 construction Methods 0.000 abstract 1
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.
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)
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 |
-
1924
- 1924-01-03 GB GB13924A patent/GB233008A/en not_active Expired
Cited By (3)
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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