JPS5434819A - Electronic shutter driving device by use of logarithm extension circuit - Google Patents

Electronic shutter driving device by use of logarithm extension circuit

Info

Publication number
JPS5434819A
JPS5434819A JP10142777A JP10142777A JPS5434819A JP S5434819 A JPS5434819 A JP S5434819A JP 10142777 A JP10142777 A JP 10142777A JP 10142777 A JP10142777 A JP 10142777A JP S5434819 A JPS5434819 A JP S5434819A
Authority
JP
Japan
Prior art keywords
logarithm
driving device
electronic shutter
shutter driving
extension circuit
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.)
Granted
Application number
JP10142777A
Other languages
English (en)
Japanese (ja)
Other versions
JPS628775B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Masamichi Furukawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP10142777A priority Critical patent/JPS5434819A/ja
Priority to US05/923,903 priority patent/US4213683A/en
Priority to DE2831520A priority patent/DE2831520C3/de
Publication of JPS5434819A publication Critical patent/JPS5434819A/ja
Publication of JPS628775B2 publication Critical patent/JPS628775B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)
  • Shutter-Related Mechanisms (AREA)
  • Electronic Switches (AREA)
JP10142777A 1977-07-18 1977-08-24 Electronic shutter driving device by use of logarithm extension circuit Granted JPS5434819A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP10142777A JPS5434819A (en) 1977-08-24 1977-08-24 Electronic shutter driving device by use of logarithm extension circuit
US05/923,903 US4213683A (en) 1977-07-18 1978-07-12 Electronic shutter driving device for camera
DE2831520A DE2831520C3 (de) 1977-07-18 1978-07-18 Elektronische Verschlußsteuereinrichtung für eine Kamera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10142777A JPS5434819A (en) 1977-08-24 1977-08-24 Electronic shutter driving device by use of logarithm extension circuit

Publications (2)

Publication Number Publication Date
JPS5434819A true JPS5434819A (en) 1979-03-14
JPS628775B2 JPS628775B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-02-24

Family

ID=14300398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10142777A Granted JPS5434819A (en) 1977-07-18 1977-08-24 Electronic shutter driving device by use of logarithm extension circuit

Country Status (1)

Country Link
JP (1) JPS5434819A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03212081A (ja) * 1990-01-17 1991-09-17 Sharp Corp 磁気記録再生装置

Also Published As

Publication number Publication date
JPS628775B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-02-24

Similar Documents

Publication Publication Date Title
JPS5386108A (en) Impulse noise limiting circuit
JPS51140642A (en) Driving circuit
JPS5422128A (en) Terminal device for data transmission
JPS527724A (en) Memory lock circuit for the camera
JPS5434819A (en) Electronic shutter driving device by use of logarithm extension circuit
JPS5417482A (en) Controlled output circuit
JPS52155576A (en) Input control circuit
JPS5349935A (en) Pulse duration decision circuit
JPS52147031A (en) Time-sharing system of output device
JPS5382151A (en) Electronic circuit
JPS5213730A (en) Electronic printer control unit
JPS53137175A (en) Metronom
JPS5322352A (en) Pulse generator
JPS51113446A (en) Oscillating circuit
JPS51126135A (en) Electronic shutter device
JPS52137580A (en) Prediction cotnrolling device
JPS545345A (en) Test unit of logic circuit
JPS5352127A (en) Shutter control signal generating circuit
JPS5392448A (en) Operating handle of gathering type power board
JPS51129014A (en) Electrically driven vehicle speed control device
JPS53125824A (en) Electric driving mechanism for camera
JPS52140780A (en) Electronic regulator
JPS53144058A (en) Electronic oven
JPS53113333A (en) Combustion control device
JPS5390734A (en) Variable cycle steal control circuit