CA1287914C - Ear microphone - Google Patents

Ear microphone

Info

Publication number
CA1287914C
CA1287914C CA 541983 CA541983A CA1287914C CA 1287914 C CA1287914 C CA 1287914C CA 541983 CA541983 CA 541983 CA 541983 A CA541983 A CA 541983A CA 1287914 C CA1287914 C CA 1287914C
Authority
CA
Canada
Prior art keywords
earpiece
ear
external auditory
auditory canal
ear microphone
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 - Lifetime
Application number
CA 541983
Other languages
English (en)
French (fr)
Inventor
Jiro Nawa
Hiroaki Yanagisawa
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.)
Temco Japan Co Ltd
Original Assignee
Temco Japan 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 Temco Japan Co Ltd filed Critical Temco Japan Co Ltd
Application granted granted Critical
Publication of CA1287914C publication Critical patent/CA1287914C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Headphones And Earphones (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
CA 541983 1986-09-25 1987-07-14 Ear microphone Expired - Lifetime CA1287914C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP61-146757 1986-09-25
JP14675786U JPS63171084U (US06373033-20020416-M00002.png) 1986-09-25 1986-09-25
JP61-226625 1986-09-25

Publications (1)

Publication Number Publication Date
CA1287914C true CA1287914C (en) 1991-08-20

Family

ID=15414884

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 541983 Expired - Lifetime CA1287914C (en) 1986-09-25 1987-07-14 Ear microphone

Country Status (2)

Country Link
JP (1) JPS63171084U (US06373033-20020416-M00002.png)
CA (1) CA1287914C (US06373033-20020416-M00002.png)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5420898U (US06373033-20020416-M00002.png) * 1977-07-08 1979-02-09

Also Published As

Publication number Publication date
JPS63171084U (US06373033-20020416-M00002.png) 1988-11-08

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Legal Events

Date Code Title Description
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121205