KR890014598U - Automatic hearing correction circuit of sound equipment - Google Patents
Automatic hearing correction circuit of sound equipmentInfo
- Publication number
- KR890014598U KR890014598U KR2019870022329U KR870022329U KR890014598U KR 890014598 U KR890014598 U KR 890014598U KR 2019870022329 U KR2019870022329 U KR 2019870022329U KR 870022329 U KR870022329 U KR 870022329U KR 890014598 U KR890014598 U KR 890014598U
- Authority
- KR
- South Korea
- Prior art keywords
- correction circuit
- sound equipment
- hearing correction
- automatic hearing
- automatic
- 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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870022329U KR910000521Y1 (en) | 1987-12-18 | 1987-12-18 | Automatic compensating circuit of sonic feeling for sonic commodities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870022329U KR910000521Y1 (en) | 1987-12-18 | 1987-12-18 | Automatic compensating circuit of sonic feeling for sonic commodities |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890014598U true KR890014598U (en) | 1989-08-11 |
KR910000521Y1 KR910000521Y1 (en) | 1991-01-25 |
Family
ID=19270443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019870022329U KR910000521Y1 (en) | 1987-12-18 | 1987-12-18 | Automatic compensating circuit of sonic feeling for sonic commodities |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR910000521Y1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200496106Y1 (en) * | 2020-05-20 | 2022-11-03 | 강성기 | Sanitary block plate capable of height control and holding sanitary mask |
-
1987
- 1987-12-18 KR KR2019870022329U patent/KR910000521Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR910000521Y1 (en) | 1991-01-25 |
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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: 19971229 Year of fee payment: 8 |
|
LAPS | Lapse due to unpaid annual fee |