JPS5459582A - Modulator - Google Patents

Modulator

Info

Publication number
JPS5459582A
JPS5459582A JP12655377A JP12655377A JPS5459582A JP S5459582 A JPS5459582 A JP S5459582A JP 12655377 A JP12655377 A JP 12655377A JP 12655377 A JP12655377 A JP 12655377A JP S5459582 A JPS5459582 A JP S5459582A
Authority
JP
Japan
Prior art keywords
inconductive
transistors
transistor
pulse
current flow
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
JP12655377A
Other languages
Japanese (ja)
Inventor
Yukinori Furuya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12655377A priority Critical patent/JPS5459582A/en
Publication of JPS5459582A publication Critical patent/JPS5459582A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Television Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To reduce the size of a modulator by rendering all of switching transistors inconductive to make it unnecessary to provide a main switch in case no pulse is applied to the bases of the transistors. CONSTITUTION:When switching transistor 12 receives no pulse, it is rendered inconductive so that an oscillatory transistor 5 has no current flow to stop its oscillations. A transistor 2 is also inconductive, and ultrared light emitting diodes 1a and 1b have no current flow. When function command switches 15a to 15c are depressed so that pulses are generated by a semiconductor integrated circuit 14, the transistors 12, 5 and 2 are turned conductive so that current flows through the diodes 1a and 1b, thus making it possible to accomplish the romote control.
JP12655377A 1977-10-20 1977-10-20 Modulator Pending JPS5459582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12655377A JPS5459582A (en) 1977-10-20 1977-10-20 Modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12655377A JPS5459582A (en) 1977-10-20 1977-10-20 Modulator

Publications (1)

Publication Number Publication Date
JPS5459582A true JPS5459582A (en) 1979-05-14

Family

ID=14938009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12655377A Pending JPS5459582A (en) 1977-10-20 1977-10-20 Modulator

Country Status (1)

Country Link
JP (1) JPS5459582A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937079A (en) * 1972-08-12 1974-04-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937079A (en) * 1972-08-12 1974-04-06

Similar Documents

Publication Publication Date Title
FI914225A0 (en) FOERFARANDE OCH ANORDNING FOER ANVAENDNING AV EN SWITCHAD REGULATOR.
FR2446573A1 (en) POWER SUPPLY CONTROL DEVICE
JPS5459582A (en) Modulator
SE306559B (en)
GB2014813A (en) Polarised relay control circuit
ES428157A1 (en) Radiation-sensitive switching circuits
JPS57183128A (en) Optically driven electronic switch
JPS5733829A (en) Switching circuit
JPS56106416A (en) Control voltage switching circuit
JPS5380156A (en) Semiconductor logical circuit device
JPS5513643A (en) Driving circuit for semicondutor switch
JPS5388556A (en) Oscillator circuit
JPS5726779A (en) Semiconductor integrated circuit for electronic timepiece
JPS5748829A (en) Semiconductor switch circuit
JPS53148476A (en) Signal level display circuit
JPS5355676A (en) Discharge lamp lighting device
JPS5355677A (en) Discharge lamp lighting device
JPS5445599A (en) Flasher lamp control unit
JPS57196322A (en) Switching regulator
GB1446422A (en) Electrical switching systems
JPS56139074A (en) Switching circuit
KR880000013A (en) Control Chemical Sprayer
JPS549716A (en) Power source circuit
KR890017950A (en) Melody Generation Circuit for TV's "On Time"
JPS54137953A (en) Alternating-current switch circuit