JPS57111522A - Safety device of camera - Google Patents

Safety device of camera

Info

Publication number
JPS57111522A
JPS57111522A JP18553480A JP18553480A JPS57111522A JP S57111522 A JPS57111522 A JP S57111522A JP 18553480 A JP18553480 A JP 18553480A JP 18553480 A JP18553480 A JP 18553480A JP S57111522 A JPS57111522 A JP S57111522A
Authority
JP
Japan
Prior art keywords
cipher
camera
ciphers
flop
flip
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.)
Pending
Application number
JP18553480A
Other languages
Japanese (ja)
Inventor
Nobuo Hashimoto
Mitsuru Saito
Koichi Izuhara
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP18553480A priority Critical patent/JPS57111522A/en
Publication of JPS57111522A publication Critical patent/JPS57111522A/en
Pending legal-status Critical Current

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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor

Abstract

PURPOSE:To prevent other person's free use, by constituting so that a registered cipher is compared with an input cipher, and a camera can be operated when both the ciphers have coincided. CONSTITUTION:When a binary number of 4 digits is set to a shift register 4 by operating cipher input switches SW4, SW5, its value is displayed by light emission diodes D1-D4. This value is compared with a cipher registered in advance in a cipher setting means 8 by a digital comparator, and when a coincidence signal is outputted, a JK flip-flop 6 is set, and a transistor TR1 is turned on by a Q output. As a result, a camera controlling circuit 2 can be electrified. Power- on resetting circuit R7, D1 and C1 reset the shift register 4 and the flip-flop 6 when the electric power supply for comparing the ciphers has been turned on.
JP18553480A 1980-12-29 1980-12-29 Safety device of camera Pending JPS57111522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18553480A JPS57111522A (en) 1980-12-29 1980-12-29 Safety device of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18553480A JPS57111522A (en) 1980-12-29 1980-12-29 Safety device of camera

Publications (1)

Publication Number Publication Date
JPS57111522A true JPS57111522A (en) 1982-07-12

Family

ID=16172478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18553480A Pending JPS57111522A (en) 1980-12-29 1980-12-29 Safety device of camera

Country Status (1)

Country Link
JP (1) JPS57111522A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5715487A (en) * 1996-03-12 1998-02-03 Eastman Kodak Company Camera and cartridge with password protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5715487A (en) * 1996-03-12 1998-02-03 Eastman Kodak Company Camera and cartridge with password protection

Similar Documents

Publication Publication Date Title
US4139864A (en) Security system for a solid state device
JPS57111522A (en) Safety device of camera
JPS57196651A (en) Dial inputting system
ES346283A1 (en) Improvements in or relating to electronic overload protection circuits
JPS5410099A (en) Electronic key
JPS51117531A (en) Output circuit
JPS5232645A (en) Multiplexer
JPS5339839A (en) Key control type electronic device
JPS57146364A (en) Electronic desk top calculator
JPS524018A (en) Inverter circuit
FR1547788A (en) Code control device
JPS5651146A (en) Serial data generator in data transmission system
JPS5493433A (en) Ac two-wire switch
ES383691A1 (en) Mutual locking device for an office machine with electric keyboard
JPS5230374A (en) Preset circuit
SU1527971A3 (en) DEVICE MANAGEMENT CODE LOCK
IT1076559B (en) Digital time signalling device - has coincidence circuit comparing outputs of hour and minute counters with output of time setting unit
JPS5330827A (en) Numerical display system
JPS52132356A (en) Setting system for protective relay
JPS524015A (en) Inverter circuit
ES350376A1 (en) Converter for coded electrical signals
JPS5439530A (en) Protection circuit for destriction of mos-ic memory
JPS524020A (en) Inverter circuit
JPS5430328A (en) Ignition system
JPS5663647A (en) N-notation base m-notation base conversion system