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KR880020909U - Speaker protection - Google Patents

Speaker protection

Info

Publication number
KR880020909U
KR880020909U KR2019870005063U KR870005063U KR880020909U KR 880020909 U KR880020909 U KR 880020909U KR 2019870005063 U KR2019870005063 U KR 2019870005063U KR 870005063 U KR870005063 U KR 870005063U KR 880020909 U KR880020909 U KR 880020909U
Authority
KR
South Korea
Prior art keywords
speaker protection
speaker
protection
Prior art date
Application number
KR2019870005063U
Other languages
Korean (ko)
Other versions
KR900007555Y1 (en
Inventor
오희석
Original Assignee
주식회사 금성사
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 주식회사 금성사 filed Critical 주식회사 금성사
Priority to KR2019870005063U priority Critical patent/KR900007555Y1/en
Publication of KR880020909U publication Critical patent/KR880020909U/en
Application granted granted Critical
Publication of KR900007555Y1 publication Critical patent/KR900007555Y1/en

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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
KR2019870005063U 1987-04-10 1987-04-10 Apparatus for protecting speakers KR900007555Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870005063U KR900007555Y1 (en) 1987-04-10 1987-04-10 Apparatus for protecting speakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870005063U KR900007555Y1 (en) 1987-04-10 1987-04-10 Apparatus for protecting speakers

Publications (2)

Publication Number Publication Date
KR880020909U true KR880020909U (en) 1988-11-30
KR900007555Y1 KR900007555Y1 (en) 1990-08-20

Family

ID=19261560

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870005063U KR900007555Y1 (en) 1987-04-10 1987-04-10 Apparatus for protecting speakers

Country Status (1)

Country Link
KR (1) KR900007555Y1 (en)

Also Published As

Publication number Publication date
KR900007555Y1 (en) 1990-08-20

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19941228

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee