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JPS5789744A - Electronic device - Google Patents

Electronic device

Info

Publication number
JPS5789744A
JPS5789744A JP16618980A JP16618980A JPS5789744A JP S5789744 A JPS5789744 A JP S5789744A JP 16618980 A JP16618980 A JP 16618980A JP 16618980 A JP16618980 A JP 16618980A JP S5789744 A JPS5789744 A JP S5789744A
Authority
JP
Japan
Prior art keywords
pull
input terminal
resistance
inputted
down resistance
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
JP16618980A
Other languages
Japanese (ja)
Other versions
JPH0261020B2 (en
Inventor
Yoshito Ushiyama
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP16618980A priority Critical patent/JPS5789744A/en
Publication of JPS5789744A publication Critical patent/JPS5789744A/en
Publication of JPH0261020B2 publication Critical patent/JPH0261020B2/ja
Granted 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
    • G03B17/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film, e.g. title, time of exposure
    • 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
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/007—Details of energy supply or management

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Camera Data Copying Or Recording (AREA)

Abstract

PURPOSE:To reduce power consumption and to prevent the malfunction of a device which has a heavy load by increasing the resistance value of a pull-down resistance or by separating the pull-down resistance from an input terminal periodically or for a prescribed period after a signal is inputted. CONSTITUTION:An input terminal where an external instruction is inputted is connected to one potential Vss of a power source through a pull-down resistance R and when the instruction is inputted, this input terminal is connected to the other potential VDD side of the power source, thus constituting a signa1 input part. Then, the resistance value of the pull-down resistance R is increased periodically or for a prescribed period after the signal is inputted, or the input terminal 18 is isolated from the pull-down resistance R. For example, a transmission gate TG controlled by a clock signal phi is provided between an input switch SW and the input terminal 18, and an FF for holding the input signal is also provided. Then, the gate TG is closed only during the VDD potential period of the clock signal phi , and a current flows through the resistance R only during the said period.
JP16618980A 1980-11-26 1980-11-26 Electronic device Granted JPS5789744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16618980A JPS5789744A (en) 1980-11-26 1980-11-26 Electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16618980A JPS5789744A (en) 1980-11-26 1980-11-26 Electronic device

Publications (2)

Publication Number Publication Date
JPS5789744A true JPS5789744A (en) 1982-06-04
JPH0261020B2 JPH0261020B2 (en) 1990-12-18

Family

ID=15826726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16618980A Granted JPS5789744A (en) 1980-11-26 1980-11-26 Electronic device

Country Status (1)

Country Link
JP (1) JPS5789744A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141332U (en) * 1983-03-12 1984-09-21 旭光学工業株式会社 Camera shooting mode display switching circuit
JPS6253128A (en) * 1985-08-31 1987-03-07 キヤノン株式会社 Power source sharing circuit system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0650033U (en) * 1992-12-15 1994-07-08 日本電気ホームエレクトロニクス株式会社 Backlight unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213320A (en) * 1975-07-23 1977-02-01 Fuji Photo Film Co Ltd Camera with data recording device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213320A (en) * 1975-07-23 1977-02-01 Fuji Photo Film Co Ltd Camera with data recording device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141332U (en) * 1983-03-12 1984-09-21 旭光学工業株式会社 Camera shooting mode display switching circuit
JPH0453630Y2 (en) * 1983-03-12 1992-12-16
JPS6253128A (en) * 1985-08-31 1987-03-07 キヤノン株式会社 Power source sharing circuit system

Also Published As

Publication number Publication date
JPH0261020B2 (en) 1990-12-18

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