JPS48104447A - - Google Patents
Info
- Publication number
- JPS48104447A JPS48104447A JP48006543A JP654373A JPS48104447A JP S48104447 A JPS48104447 A JP S48104447A JP 48006543 A JP48006543 A JP 48006543A JP 654373 A JP654373 A JP 654373A JP S48104447 A JPS48104447 A JP S48104447A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
- G01J3/524—Calibration of colorimeters
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Amplifiers (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21777572A | 1972-01-14 | 1972-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS48104447A true JPS48104447A (US06653308-20031125-C00199.png) | 1973-12-27 |
| JPS5538708B2 JPS5538708B2 (US06653308-20031125-C00199.png) | 1980-10-06 |
Family
ID=22812459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP654373A Expired JPS5538708B2 (US06653308-20031125-C00199.png) | 1972-01-14 | 1973-01-12 |
Country Status (5)
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH566543A5 (US06653308-20031125-C00199.png) * | 1972-04-28 | 1975-09-15 | Micromedic Systems Inc | |
| US3876878A (en) * | 1972-05-22 | 1975-04-08 | Said Frank By Said Miles And A | Control system for color pattern generator |
| US3828226A (en) * | 1972-12-20 | 1974-08-06 | Carlson Co Chesley F | Exposure override control |
| JPS5059034A (US06653308-20031125-C00199.png) * | 1973-09-24 | 1975-05-22 | ||
| US3909609A (en) * | 1973-10-29 | 1975-09-30 | Xerox Corp | Light source measuring apparatus |
| US3984185A (en) * | 1974-08-19 | 1976-10-05 | Durst Ag Fabrik Fototechnischer Apparate Bozen | Process and apparatus for filter value and exposure time determination in photographic color printing and enlarging |
| US4075559A (en) * | 1975-07-24 | 1978-02-21 | Westinghouse Electric Corporation | Technique for extending the range of a signal measuring circuit |
| US4236079A (en) * | 1977-12-02 | 1980-11-25 | General Electric Company | Tomographic scanning apparatus |
| US4309604A (en) * | 1978-07-24 | 1982-01-05 | Sharp Kabushiki Kaisha | Apparatus for sensing the wavelength and intensity of light |
| US4231654A (en) * | 1979-04-27 | 1980-11-04 | Michael E. Gorski | Controller for photographic enlarger or the like |
| JPS58223040A (ja) * | 1982-06-22 | 1983-12-24 | Nippon Koden Corp | 呼吸気ガス濃度測定装置 |
| US4628277A (en) * | 1985-05-01 | 1986-12-09 | General Electric Company | Femtoammeter |
| US4792829A (en) * | 1986-04-03 | 1988-12-20 | Firmani Alexander D | Light-exposure control unit |
| US7498779B2 (en) * | 2005-01-28 | 2009-03-03 | Broadcom Corporation | Voltage supply interface with improved current sensitivity and reduced series resistance |
| US9503133B2 (en) | 2012-12-03 | 2016-11-22 | Dockon Ag | Low noise detection system using log detector amplifier |
| CN105359408B (zh) * | 2013-03-15 | 2018-10-02 | 多康公司 | 具有通用解调能力的对数放大器 |
| 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 |
| US9048943B2 (en) | 2013-03-15 | 2015-06-02 | Dockon Ag | Low-power, noise insensitive communication channel using logarithmic detector amplifier (LDA) demodulator |
| US9684807B2 (en) | 2013-03-15 | 2017-06-20 | Dockon Ag | Frequency selective logarithmic amplifier with intrinsic frequency demodulation capability |
| US11082014B2 (en) | 2013-09-12 | 2021-08-03 | Dockon Ag | Advanced amplifier system for ultra-wide band RF communication |
| TWI568173B (zh) | 2013-09-12 | 2017-01-21 | 多康股份有限公司 | 作為無頻率轉換之高敏感選擇接收器之對數檢測放大系統 |
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3237028A (en) * | 1963-02-21 | 1966-02-22 | James F Gibbons | Logarithmic transfer circuit |
| US3448289A (en) * | 1966-05-20 | 1969-06-03 | Us Navy | Logarthmic amplifier |
| US3528749A (en) * | 1966-12-09 | 1970-09-15 | Itek Corp | Apparatus for measuring optical density |
| GB1214172A (en) * | 1968-07-22 | 1970-12-02 | Crosfield Electronics Ltd | Improvements relating to image reproducing apparatus |
| GB1297364A (US06653308-20031125-C00199.png) * | 1969-04-16 | 1972-11-22 | ||
| US3653759A (en) * | 1970-12-08 | 1972-04-04 | Eastman Kodak Co | Automatic control of color correction of photographic printers |
-
1972
- 1972-01-14 US US00217775A patent/US3724954A/en not_active Expired - Lifetime
-
1973
- 1973-01-11 GB GB159173A patent/GB1372832A/en not_active Expired
- 1973-01-12 JP JP654373A patent/JPS5538708B2/ja not_active Expired
- 1973-01-12 CA CA161,175A patent/CA1012248A/en not_active Expired
- 1973-01-13 DE DE2301656A patent/DE2301656C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5538708B2 (US06653308-20031125-C00199.png) | 1980-10-06 |
| DE2301656A1 (de) | 1973-07-19 |
| DE2301656C2 (de) | 1983-05-26 |
| US3724954A (en) | 1973-04-03 |
| CA1012248A (en) | 1977-06-14 |
| GB1372832A (en) | 1974-11-06 |
