ES8407283A1 - Low noise communication device and a corresponding method - Google Patents
Low noise communication device and a corresponding methodInfo
- Publication number
- ES8407283A1 ES8407283A1 ES519772A ES519772A ES8407283A1 ES 8407283 A1 ES8407283 A1 ES 8407283A1 ES 519772 A ES519772 A ES 519772A ES 519772 A ES519772 A ES 519772A ES 8407283 A1 ES8407283 A1 ES 8407283A1
- Authority
- ES
- Spain
- Prior art keywords
- minimum
- maximum values
- analog signal
- occurrence
- sensory system
- 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
Landscapes
- Analogue/Digital Conversion (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
An apparatus and method are disclosed for encoding only the maximum and minimum values of an analog signal in the presence of broadband noise so that the original analog signal may be subjectively reproduced for the human sensory system. The basic apparatus includes a differentiator for detecting the times of occurrence of minimum and maximum values of the analog waveform including the minimum and maximum values of the noise superimposed thereon and for converting the times of occurrence of minimum and maximum values into time-axis zero crossings, and a clipping circuit having a bandwidth substantially greater than the bandwidth of the analog signal for encoding the time-axis zero crossings in transitions of a binary signal. The binary signal contains information solely concerning the times of occurrence of the minimum and maximum values of the original analog signal and may be presented directly to the human sensory system or after further signal processing. Because the human sensory system is more receptive to the occurrence of minimum and maximum values of a waveform, the sensory system will substantially reproduce the original analog signal from the encoded waveform.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES519772A ES519772A0 (en) | 1983-02-14 | 1983-02-14 | A LOW NOISE COMMUNICATION DEVICE AND A CORRESPONDING METHOD. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES519772A ES519772A0 (en) | 1983-02-14 | 1983-02-14 | A LOW NOISE COMMUNICATION DEVICE AND A CORRESPONDING METHOD. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8407283A1 true ES8407283A1 (en) | 1984-09-01 |
ES519772A0 ES519772A0 (en) | 1984-09-01 |
Family
ID=8485331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES519772A Granted ES519772A0 (en) | 1983-02-14 | 1983-02-14 | A LOW NOISE COMMUNICATION DEVICE AND A CORRESPONDING METHOD. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES519772A0 (en) |
-
1983
- 1983-02-14 ES ES519772A patent/ES519772A0/en active Granted
Also Published As
Publication number | Publication date |
---|---|
ES519772A0 (en) | 1984-09-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Patent lapsed |
Effective date: 19960506 |