BE513534A - - Google Patents
Info
- Publication number
- BE513534A BE513534A BE513534DA BE513534A BE 513534 A BE513534 A BE 513534A BE 513534D A BE513534D A BE 513534DA BE 513534 A BE513534 A BE 513534A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for microphones
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)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL304777X | 1951-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE513534A true BE513534A (https=) |
Family
ID=19783449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE513534D BE513534A (https=) | 1951-08-17 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE513534A (https=) |
| CH (1) | CH304777A (https=) |
| DE (1) | DE926498C (https=) |
| FR (1) | FR1061480A (https=) |
| GB (1) | GB709355A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8416978B2 (en) * | 2007-02-28 | 2013-04-09 | Temco Japan Co., Ltd. | Vibration pickup microphone |
-
0
- BE BE513534D patent/BE513534A/xx unknown
-
1952
- 1952-08-14 DE DEN5926A patent/DE926498C/de not_active Expired
- 1952-08-14 FR FR1061480D patent/FR1061480A/fr not_active Expired
- 1952-08-14 GB GB20459/52A patent/GB709355A/en not_active Expired
- 1952-08-15 CH CH304777D patent/CH304777A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1061480A (fr) | 1954-04-13 |
| CH304777A (de) | 1955-01-31 |
| DE926498C (de) | 1955-04-18 |
| GB709355A (en) | 1954-05-19 |