KR910001948U - Speaker direction conversion device for all-in-one sound device - Google Patents
Speaker direction conversion device for all-in-one sound deviceInfo
- Publication number
- KR910001948U KR910001948U KR2019890007936U KR890007936U KR910001948U KR 910001948 U KR910001948 U KR 910001948U KR 2019890007936 U KR2019890007936 U KR 2019890007936U KR 890007936 U KR890007936 U KR 890007936U KR 910001948 U KR910001948 U KR 910001948U
- Authority
- KR
- South Korea
- Prior art keywords
- direction conversion
- speaker direction
- sound
- conversion device
- sound device
- Prior art date
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
- H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890007936U KR940000421Y1 (en) | 1989-06-08 | 1989-06-08 | Direction changing apparatus of speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890007936U KR940000421Y1 (en) | 1989-06-08 | 1989-06-08 | Direction changing apparatus of speaker |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910001948U true KR910001948U (en) | 1991-01-25 |
KR940000421Y1 KR940000421Y1 (en) | 1994-01-24 |
Family
ID=19286941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019890007936U KR940000421Y1 (en) | 1989-06-08 | 1989-06-08 | Direction changing apparatus of speaker |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940000421Y1 (en) |
-
1989
- 1989-06-08 KR KR2019890007936U patent/KR940000421Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR940000421Y1 (en) | 1994-01-24 |
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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: 19981231 Year of fee payment: 6 |
|
LAPS | Lapse due to unpaid annual fee |