JPS51146202A - Head-phone - Google Patents

Head-phone

Info

Publication number
JPS51146202A
JPS51146202A JP50065484A JP6548475A JPS51146202A JP S51146202 A JPS51146202 A JP S51146202A JP 50065484 A JP50065484 A JP 50065484A JP 6548475 A JP6548475 A JP 6548475A JP S51146202 A JPS51146202 A JP S51146202A
Authority
JP
Japan
Prior art keywords
phone
head
reduced
hearing
feeling
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.)
Granted
Application number
JP50065484A
Other languages
English (en)
Other versions
JPS6019197B2 (ja
Inventor
Yasutake Nishimura
Mitsuhiro Hasegawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP50065484A priority Critical patent/JPS6019197B2/ja
Priority to US05/648,306 priority patent/US4058688A/en
Priority to GB1233/76A priority patent/GB1504065A/en
Priority to DE2602128A priority patent/DE2602128C3/de
Priority to CA244,042A priority patent/CA1047943A/en
Priority to FR7601829A priority patent/FR2312908A1/fr
Publication of JPS51146202A publication Critical patent/JPS51146202A/ja
Publication of JPS6019197B2 publication Critical patent/JPS6019197B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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 
    • H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for telephonic receivers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic Arrangements (AREA)
  • Headphones And Earphones (AREA)
JP50065484A 1975-05-27 1975-05-30 ヘツドホン Expired JPS6019197B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP50065484A JPS6019197B2 (ja) 1975-05-30 1975-05-30 ヘツドホン
US05/648,306 US4058688A (en) 1975-05-27 1976-01-12 Headphone
GB1233/76A GB1504065A (en) 1975-05-27 1976-01-13 Headphone
DE2602128A DE2602128C3 (de) 1975-05-27 1976-01-21 Kopfhörer
CA244,042A CA1047943A (en) 1975-05-27 1976-01-22 Head phone
FR7601829A FR2312908A1 (fr) 1975-05-27 1976-01-23 Casque d'ecoute

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50065484A JPS6019197B2 (ja) 1975-05-30 1975-05-30 ヘツドホン

Publications (2)

Publication Number Publication Date
JPS51146202A true JPS51146202A (en) 1976-12-15
JPS6019197B2 JPS6019197B2 (ja) 1985-05-15

Family

ID=13288406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50065484A Expired JPS6019197B2 (ja) 1975-05-27 1975-05-30 ヘツドホン

Country Status (1)

Country Link
JP (1) JPS6019197B2 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286700U (ja) * 1985-11-21 1987-06-02
JPS62109396U (ja) * 1985-12-26 1987-07-13
JPS63174196U (ja) * 1987-03-26 1988-11-11

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133002A (ja) * 1972-09-08 1974-12-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133002A (ja) * 1972-09-08 1974-12-20

Also Published As

Publication number Publication date
JPS6019197B2 (ja) 1985-05-15

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