KR890015568U - 와이어리스 이어폰 - Google Patents

와이어리스 이어폰

Info

Publication number
KR890015568U
KR890015568U KR2019870024130U KR870024130U KR890015568U KR 890015568 U KR890015568 U KR 890015568U KR 2019870024130 U KR2019870024130 U KR 2019870024130U KR 870024130 U KR870024130 U KR 870024130U KR 890015568 U KR890015568 U KR 890015568U
Authority
KR
South Korea
Prior art keywords
wireless earphone
earphone
wireless
Prior art date
Application number
KR2019870024130U
Other languages
English (en)
Other versions
KR920002923Y1 (ko
Inventor
박용호
Original Assignee
금성일렉트론 주식회사
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 금성일렉트론 주식회사 filed Critical 금성일렉트론 주식회사
Priority to KR2019870024130U priority Critical patent/KR920002923Y1/ko
Publication of KR890015568U publication Critical patent/KR890015568U/ko
Application granted granted Critical
Publication of KR920002923Y1 publication Critical patent/KR920002923Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/004—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using continuously variable impedance devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones
KR2019870024130U 1987-12-31 1987-12-31 와이어리스 이어폰 KR920002923Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870024130U KR920002923Y1 (ko) 1987-12-31 1987-12-31 와이어리스 이어폰

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870024130U KR920002923Y1 (ko) 1987-12-31 1987-12-31 와이어리스 이어폰

Publications (2)

Publication Number Publication Date
KR890015568U true KR890015568U (ko) 1989-08-12
KR920002923Y1 KR920002923Y1 (ko) 1992-05-08

Family

ID=19271160

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870024130U KR920002923Y1 (ko) 1987-12-31 1987-12-31 와이어리스 이어폰

Country Status (1)

Country Link
KR (1) KR920002923Y1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000017970A (ko) * 1999-12-31 2000-04-06 조종행 근거리 무선송수신 장치

Also Published As

Publication number Publication date
KR920002923Y1 (ko) 1992-05-08

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19990429

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee