CH322826A - Voice damper, in particular for attachment to a microphone - Google Patents
Voice damper, in particular for attachment to a microphoneInfo
- Publication number
- CH322826A CH322826A CH322826DA CH322826A CH 322826 A CH322826 A CH 322826A CH 322826D A CH322826D A CH 322826DA CH 322826 A CH322826 A CH 322826A
- Authority
- CH
- Switzerland
- Prior art keywords
- damper
- microphone
- voice
- attachment
- voice damper
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Building Environments (AREA)
- Exhaust Silencers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28710/53A GB737635A (en) | 1953-10-17 | 1953-10-17 | Improvements in or relating to voice mufflers for telephone transmitters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH322826A true CH322826A (en) | 1957-06-30 |
Family
ID=10279859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH322826D CH322826A (en) | 1953-10-17 | 1953-11-13 | Voice damper, in particular for attachment to a microphone |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2670054A (en) |
| CH (1) | CH322826A (en) |
| DE (1) | DE1000868B (en) |
| FR (1) | FR1093466A (en) |
| GB (1) | GB737635A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2798122A (en) * | 1953-10-02 | 1957-07-02 | Ungarsohn Harry | Voice reporting apparatus and the like |
| US2846527A (en) * | 1954-12-13 | 1958-08-05 | Johnson Hartmann | Telephone mouthpiece voice silencer |
| DE102019213894A1 (en) * | 2019-09-11 | 2021-03-11 | mutum GmbH | Limiting sound emissions in speech detection arrangements |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2131820A (en) * | 1937-02-15 | 1938-10-04 | Louis S Scher | Telephone voice silencer |
| US2245724A (en) * | 1940-05-21 | 1941-06-17 | Louis S Scher | Voice silencer |
| US2508581A (en) * | 1946-02-18 | 1950-05-23 | Us Office Of Scient Res And De | Noise shield for microphones |
| US2478783A (en) * | 1946-06-17 | 1949-08-09 | Louis S Scher | Telephone mouthpiece voice silencer with plural silencing chambers |
| US2566975A (en) * | 1947-01-18 | 1951-09-04 | Leo L Beranek | Voice silencer |
-
1950
- 1950-07-21 US US175102A patent/US2670054A/en not_active Expired - Lifetime
-
1953
- 1953-10-17 GB GB28710/53A patent/GB737635A/en not_active Expired
- 1953-11-02 DE DET8589A patent/DE1000868B/en active Pending
- 1953-11-02 FR FR1093466D patent/FR1093466A/en not_active Expired
- 1953-11-13 CH CH322826D patent/CH322826A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2670054A (en) | 1954-02-23 |
| FR1093466A (en) | 1955-05-05 |
| GB737635A (en) | 1955-09-28 |
| DE1000868B (en) | 1957-01-17 |
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