GB1352883A - Stereophonic headphone assemblies - Google Patents

Stereophonic headphone assemblies

Info

Publication number
GB1352883A
GB1352883A GB2429171A GB2429171A GB1352883A GB 1352883 A GB1352883 A GB 1352883A GB 2429171 A GB2429171 A GB 2429171A GB 2429171 A GB2429171 A GB 2429171A GB 1352883 A GB1352883 A GB 1352883A
Authority
GB
United Kingdom
Prior art keywords
speakers
opening
housing
support
threaded
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
GB2429171A
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.)
IND PATENT DEV CORP
Original Assignee
IND PATENT DEV 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 IND PATENT DEV CORP filed Critical IND PATENT DEV CORP
Publication of GB1352883A publication Critical patent/GB1352883A/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
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests
    • 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
    • H04R1/1058—Manufacture or assembly
    • H04R1/1075—Mountings of transducers in earphones or headphones
    • 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
    • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
    • H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure

Abstract

1352883 Headsets INDUSTRIAL PATENT DEVELOPMENT CORP 19 April 1971 [18 March 1970 5 June 1970] 24291/71 Heading H4J A pair of headphones for four channel listening has two receiver transducers in each headphone. In a first embodiment, two housings 20, 22 of moulded plastics material are pivotally mounted by pins (24, 26), Fig. 1 (not shown), on a resilient support (16) through which conductors may be threaded. Each housing 20, 22 has an inwardly facing opening 28 covered with a perforated disc 32. Each housing 20, 22 carries two speakers 40 and 42, 44 and 46 secured by plastics backing foam 48, 50, 52, 54. Speakers 40, 42 face each other and are spaced apart by the diameter of the opening 28. In use, the support (16) extends across the top of the user's head and the speakers 40, 42 are on a common axis extending from front to rear. Speakers 44, 46 are similarly arranged. Stereo separation between the speakers in each housing 20, 22 is improved by a reflective membrane 66 adjustable by a threaded screw 62. An alternative headphone (Fig. 4) comprises an enclosure 70 in which are two backto-back moving coil speakers 76, 78. A wall 84 of sound-insulating foam separates the speakers 76, 78 and divides an opening 72 having an earpiece 74. In use the loud-speakers 76, 78 are on a common axis extending from front to rear. In another embodiment, two housings 112, 114 (Fig. 5) are pivotally mounted on a support 116 through which conductors may be threaded. Foamed plastics layers 119, 122 are provided. Each housing 112, 114 has two speakers 126, 128, one on each side of an opening and in use the axes of all the speakers 126, 128 are generally parallel with the support 116, which is worn across the back of the head. The opening has louvres 132 (see also Figs. 6, 7, not shown). An opening 134 in the foamed plastics layer 122 is for surrounding an ear. Stereo separation between the speakers 126, 128 is enhanced by an adjustable V-shaped membrane 136 of stretchable material.
GB2429171A 1970-03-18 1971-04-19 Stereophonic headphone assemblies Expired GB1352883A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2068070A 1970-03-18 1970-03-18
US4390370A 1970-06-05 1970-06-05

Publications (1)

Publication Number Publication Date
GB1352883A true GB1352883A (en) 1974-05-15

Family

ID=26693732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2429171A Expired GB1352883A (en) 1970-03-18 1971-04-19 Stereophonic headphone assemblies

Country Status (4)

Country Link
JP (1) JPS4939003B1 (en)
CA (1) CA934868A (en)
DE (1) DE2113073A1 (en)
GB (1) GB1352883A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012044254A1 (en) * 2010-10-01 2012-04-05 Creative Technology Ltd An audio reproduction device and a method for using the aforementioned device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2329851C2 (en) * 1973-06-12 1975-08-14 Neckermann Versand Kgaa, 6000 Frankfurt Headphones for the playback of real quadrophonically recorded information
JPH0659120B2 (en) * 1983-05-31 1994-08-03 ソニー株式会社 Headphone
US4739860A (en) * 1984-05-29 1988-04-26 Nissan Motor Co., Ltd. Ultrasonic rangefinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012044254A1 (en) * 2010-10-01 2012-04-05 Creative Technology Ltd An audio reproduction device and a method for using the aforementioned device

Also Published As

Publication number Publication date
CA934868A (en) 1973-10-02
DE2113073A1 (en) 1971-10-07
JPS4939003B1 (en) 1974-10-22

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees