BE476341A - - Google Patents
Info
- Publication number
- BE476341A BE476341A BE476341DA BE476341A BE 476341 A BE476341 A BE 476341A BE 476341D A BE476341D A BE 476341DA BE 476341 A BE476341 A BE 476341A
- Authority
- BE
- Belgium
- Prior art keywords
- box
- transmitter
- receiver
- speaker
- telephone
- Prior art date
Links
- 230000006698 induction Effects 0.000 claims description 18
- 230000001939 inductive effect Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 244000125300 Argania sideroxylon Species 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
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
- H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
- H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
- H04M1/2155—Acoustic coupling
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE476341A true BE476341A (enrdf_load_html_response) |
Family
ID=124752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE476341D BE476341A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE476341A (enrdf_load_html_response) |
-
0
- BE BE476341D patent/BE476341A/fr unknown
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