FR660494A - Improvements to sound reproduction systems - Google Patents
Improvements to sound reproduction systemsInfo
- Publication number
- FR660494A FR660494A FR660494DA FR660494A FR 660494 A FR660494 A FR 660494A FR 660494D A FR660494D A FR 660494DA FR 660494 A FR660494 A FR 660494A
- Authority
- FR
- France
- Prior art keywords
- sound reproduction
- reproduction systems
- systems
- sound
- reproduction
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
- H04R3/14—Cross-over networks
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US660494XA | 1927-09-17 | 1927-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR660494A true FR660494A (en) | 1929-07-11 |
Family
ID=22066937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR660494D Expired FR660494A (en) | 1927-09-17 | 1928-09-15 | Improvements to sound reproduction systems |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR660494A (en) |
-
1928
- 1928-09-15 FR FR660494D patent/FR660494A/en not_active Expired
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