FR1229572A - Dispositif pour la conversion logarithmique d'un signal électrique - Google Patents
Dispositif pour la conversion logarithmique d'un signal électriqueInfo
- Publication number
- FR1229572A FR1229572A FR799974A FR799974A FR1229572A FR 1229572 A FR1229572 A FR 1229572A FR 799974 A FR799974 A FR 799974A FR 799974 A FR799974 A FR 799974A FR 1229572 A FR1229572 A FR 1229572A
- Authority
- FR
- France
- Prior art keywords
- electrical signal
- logarithmic conversion
- logarithmic
- conversion
- electrical
- 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
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
- H03D1/18—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of semiconductor devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL229550 | 1958-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1229572A true FR1229572A (fr) | 1960-09-08 |
Family
ID=19751278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR799974A Expired FR1229572A (fr) | 1958-07-12 | 1959-07-10 | Dispositif pour la conversion logarithmique d'un signal électrique |
Country Status (7)
Country | Link |
---|---|
US (1) | US3092779A (fr) |
BE (1) | BE580594A (fr) |
CA (1) | CA640327A (fr) |
DE (1) | DE1115831B (fr) |
FR (1) | FR1229572A (fr) |
GB (1) | GB921606A (fr) |
NL (1) | NL229550A (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1007079A (en) * | 1963-04-23 | 1965-10-13 | Philips Electronic Associated | Improvements in or relating to transistorized frequency detectors |
US3293450A (en) * | 1963-09-16 | 1966-12-20 | Beckman Instruments Inc | Transfer circuit having wide range antilogarithm response |
US3320530A (en) * | 1964-07-08 | 1967-05-16 | Nexus Res Lab Inc | Quasi-logarithmic multimeter for providing an output which is a linear function of the logarithmic of the input |
US3408582A (en) * | 1966-06-16 | 1968-10-29 | Alfred Electronics | Wide dynamic range square-law detector with logarithmic read-out |
US4730603A (en) * | 1987-01-28 | 1988-03-15 | Minnesota Mining And Manufacturing Company | Receiver of amplitude modulated signals |
GB0721481D0 (en) * | 2007-11-01 | 2007-12-12 | Odaenathus Ltd | Improvements in and relating to logarithmic amplifiers |
US9503133B2 (en) | 2012-12-03 | 2016-11-22 | Dockon Ag | Low noise detection system using log detector amplifier |
WO2014145129A1 (fr) | 2013-03-15 | 2014-09-18 | Forrest James Brown | Amplificateur logarithmique possédant des capacités de démodulation universelles |
JP6416195B2 (ja) | 2013-03-15 | 2018-10-31 | ドックオン エージー | 固有周波数復調能力を備えた周波数選択性対数増幅器 |
US9048943B2 (en) | 2013-03-15 | 2015-06-02 | Dockon Ag | Low-power, noise insensitive communication channel using logarithmic detector amplifier (LDA) demodulator |
US9236892B2 (en) | 2013-03-15 | 2016-01-12 | Dockon Ag | Combination of steering antennas, CPL antenna(s), and one or more receive logarithmic detector amplifiers for SISO and MIMO applications |
US11183974B2 (en) | 2013-09-12 | 2021-11-23 | Dockon Ag | Logarithmic detector amplifier system in open-loop configuration for use as high sensitivity selective receiver without frequency conversion |
US11082014B2 (en) | 2013-09-12 | 2021-08-03 | Dockon Ag | Advanced amplifier system for ultra-wide band RF communication |
WO2015038191A1 (fr) | 2013-09-12 | 2015-03-19 | Dockon Ag | Système amplificateur détecteur logarithmique destiné à être utilisé comme récepteur sélectif à haute sensibilité sans conversion de fréquence |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2313666A (en) * | 1940-01-26 | 1943-03-09 | Rca Corp | Logarithmic instrument circuit |
NL76055C (fr) * | 1948-04-21 | |||
US2864002A (en) * | 1953-09-16 | 1958-12-09 | Bell Telephone Labor Inc | Transistor detector |
BE533823A (fr) * | 1953-12-04 |
-
0
- NL NL229550D patent/NL229550A/xx unknown
- BE BE580594D patent/BE580594A/xx unknown
- CA CA640327A patent/CA640327A/en not_active Expired
-
1959
- 1959-07-03 US US824867A patent/US3092779A/en not_active Expired - Lifetime
- 1959-07-08 DE DEN16954A patent/DE1115831B/de active Pending
- 1959-07-09 GB GB23627/59A patent/GB921606A/en not_active Expired
- 1959-07-10 FR FR799974A patent/FR1229572A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB921606A (en) | 1963-03-20 |
BE580594A (fr) | |
US3092779A (en) | 1963-06-04 |
DE1115831B (de) | 1961-10-26 |
NL229550A (fr) | |
CA640327A (en) | 1962-04-24 |
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