KR890015396U - 가변 지향회로 - Google Patents

가변 지향회로

Info

Publication number
KR890015396U
KR890015396U KR2019870022572U KR870022572U KR890015396U KR 890015396 U KR890015396 U KR 890015396U KR 2019870022572 U KR2019870022572 U KR 2019870022572U KR 870022572 U KR870022572 U KR 870022572U KR 890015396 U KR890015396 U KR 890015396U
Authority
KR
South Korea
Prior art keywords
variable direction
direction circuit
circuit
variable
Prior art date
Application number
KR2019870022572U
Other languages
English (en)
Other versions
KR900007849Y1 (ko
Inventor
원종화
김용기
Original Assignee
삼성전자 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 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Priority to KR2019870022572U priority Critical patent/KR900007849Y1/ko
Publication of KR890015396U publication Critical patent/KR890015396U/ko
Application granted granted Critical
Publication of KR900007849Y1 publication Critical patent/KR900007849Y1/ko

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/326—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
KR2019870022572U 1987-12-21 1987-12-21 가변 지향회로 KR900007849Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870022572U KR900007849Y1 (ko) 1987-12-21 1987-12-21 가변 지향회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870022572U KR900007849Y1 (ko) 1987-12-21 1987-12-21 가변 지향회로

Publications (2)

Publication Number Publication Date
KR890015396U true KR890015396U (ko) 1989-08-12
KR900007849Y1 KR900007849Y1 (ko) 1990-08-24

Family

ID=19270539

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870022572U KR900007849Y1 (ko) 1987-12-21 1987-12-21 가변 지향회로

Country Status (1)

Country Link
KR (1) KR900007849Y1 (ko)

Also Published As

Publication number Publication date
KR900007849Y1 (ko) 1990-08-24

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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: 19970829

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee