JPS4883824A - - Google Patents
Info
- Publication number
- JPS4883824A JPS4883824A JP47013418A JP1341872A JPS4883824A JP S4883824 A JPS4883824 A JP S4883824A JP 47013418 A JP47013418 A JP 47013418A JP 1341872 A JP1341872 A JP 1341872A JP S4883824 A JPS4883824 A JP S4883824A
- 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
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/081—Analogue circuits
- G03B7/083—Analogue circuits for control of exposure time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Shutters For Cameras (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1341872A JPS5312808B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-02-07 | 1972-02-07 | |
| US00329854A US3791272A (en) | 1972-02-07 | 1973-02-05 | Automatic camera shutter controls with storage or pulse voltages |
| DE19732305945 DE2305945C3 (de) | 1972-02-07 | 1973-02-07 | Schaltungsanordnung zur automatischen Belichtungszeitsteuerung für fotografische Kameras |
| GB609473A GB1421834A (en) | 1972-02-07 | 1973-02-07 | Electric exposure time control arrangement for a camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1341872A JPS5312808B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-02-07 | 1972-02-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4883824A true JPS4883824A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-11-08 |
| JPS5312808B2 JPS5312808B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-05-04 |
Family
ID=11832572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1341872A Expired JPS5312808B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-02-07 | 1972-02-07 |
Country Status (3)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249826A (en) * | 1975-10-17 | 1977-04-21 | Fuji Photo Optical Co Ltd | Exposure control device |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1452110A (en) * | 1972-10-06 | 1976-10-13 | Asahi Optical Co Ltd | Electric shutter control arrangement of frequency conversion type |
| JPS53150814U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1977-05-02 | 1978-11-28 | ||
| US4297011A (en) | 1979-05-10 | 1981-10-27 | Rollei Of America, Inc. | Photoflash device |
| GB0721481D0 (en) * | 2007-11-01 | 2007-12-12 | Odaenathus Ltd | Improvements in and relating to logarithmic amplifiers |
| WO2014089123A1 (en) | 2012-12-03 | 2014-06-12 | Forrest James Brown | 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 |
| KR102268740B1 (ko) | 2013-03-15 | 2021-06-24 | 도콘 아게 | 주파수 복조 능력이 내재된 주파수 선택적 대수 증폭기 |
| TWI597957B (zh) | 2013-03-15 | 2017-09-01 | 達可昂股份有限公司 | 使用對數檢波器放大器（ｌｄａ）解調器之低功耗雜訊不敏感通訊頻道系統及相關方法 |
| US11082014B2 (en) | 2013-09-12 | 2021-08-03 | Dockon Ag | Advanced amplifier system for ultra-wide band RF communication |
| KR101884242B1 (ko) | 2013-09-12 | 2018-08-01 | 도콘 아게 | 주파수 변환 없이 고감도 선택적 수신기로서 사용되기 위한 대수 검출 증폭기 시스템 |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES377232A1 (es) * | 1969-02-26 | 1972-06-01 | Nippon Kogaku Kk | Dispositivo automatico de control de tiempo de exposicion para camaras. |
| US3657979A (en) * | 1969-07-05 | 1972-04-25 | Asahi Optical Co Ltd | Automatic exposure controls for cameras |
| US3633473A (en) * | 1969-11-10 | 1972-01-11 | Copal Co Ltd | Exposure control apparatus for photographic camera |
-
1972
- 1972-02-07 JP JP1341872A patent/JPS5312808B2/ja not_active Expired
-
1973
- 1973-02-05 US US00329854A patent/US3791272A/en not_active Expired - Lifetime
- 1973-02-07 GB GB609473A patent/GB1421834A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5249826A (en) * | 1975-10-17 | 1977-04-21 | Fuji Photo Optical Co Ltd | Exposure control device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1421834A (en) | 1976-01-21 |
| US3791272A (en) | 1974-02-12 |
| DE2305945B2 (de) | 1974-09-19 |
| JPS5312808B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-05-04 |
| DE2305945A1 (de) | 1973-08-16 |