JPS575474A - Signal switching device - Google Patents

Signal switching device

Info

Publication number
JPS575474A
JPS575474A JP7976480A JP7976480A JPS575474A JP S575474 A JPS575474 A JP S575474A JP 7976480 A JP7976480 A JP 7976480A JP 7976480 A JP7976480 A JP 7976480A JP S575474 A JPS575474 A JP S575474A
Authority
JP
Japan
Prior art keywords
input
terminal
signal
outputted
switch
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
JP7976480A
Other languages
Japanese (ja)
Other versions
JPS6339149B2 (en
Inventor
Akihisa Sugimoto
Koji Ishikawa
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 JP7976480A priority Critical patent/JPS575474A/en
Publication of JPS575474A publication Critical patent/JPS575474A/en
Publication of JPS6339149B2 publication Critical patent/JPS6339149B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)

Abstract

PURPOSE:To obtain one or both inputs signal as the output, by making automatic switching of two different input signals, through the control of a switching means, by detecting the presence of input signals at the 1st and 2nd terminals. CONSTITUTION:When it is desired to switch the signals of ''input 1'' and ''input 2'' automatically, the moving terminal of a switch 11 is connected to a terminal (a). When an ''input 1'' is applied to a terminal 1, a transistor 4 conducts, the relay contact is selected to the (a) side and the signal of ''input 1'' is outputted from output terminals 6,9. Further, when the ''input 1'' is absent and the''input 2'' is applied to a terminal 2, the relay contact is switched to the (b) side and the signal of the ''input 2'' is outputted to the output terminal 6. On the other hand, when the moving terminal of the switch 11 is switched to the terminal (b) side, the signal of the ''input 2'' is outputted to the output terminal 6, independently of the presence of the signal of the ''input 1''.
JP7976480A 1980-06-12 1980-06-12 Signal switching device Granted JPS575474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7976480A JPS575474A (en) 1980-06-12 1980-06-12 Signal switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7976480A JPS575474A (en) 1980-06-12 1980-06-12 Signal switching device

Publications (2)

Publication Number Publication Date
JPS575474A true JPS575474A (en) 1982-01-12
JPS6339149B2 JPS6339149B2 (en) 1988-08-03

Family

ID=13699278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7976480A Granted JPS575474A (en) 1980-06-12 1980-06-12 Signal switching device

Country Status (1)

Country Link
JP (1) JPS575474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382982A (en) * 1991-12-06 1995-01-17 Sony Corporation Television receiver with multiple inputs and outputs for automatically switching between inputs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238098U (en) * 1988-09-01 1990-03-13
US5456773A (en) * 1992-03-27 1995-10-10 Heimsoth Verwaltungen Gmbh & Co. Kg Heat treatment process for metal articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382982A (en) * 1991-12-06 1995-01-17 Sony Corporation Television receiver with multiple inputs and outputs for automatically switching between inputs

Also Published As

Publication number Publication date
JPS6339149B2 (en) 1988-08-03

Similar Documents

Publication Publication Date Title
JPS5784377A (en) Device for detecting obstacle
JPS575474A (en) Signal switching device
JPS56112166A (en) Receiving voice amplifying system for telephone set
JPS5698033A (en) Switching system of standby transmission line
JPS53132968A (en) Switch circuit
JPS575473A (en) Signal switching and display device
JPS57148479A (en) Apparatus controlling system
JPS5757074A (en) System for operation confirmation of audio response system
JPS56141641A (en) Channel equipment of pulse code modulation terminal
JPS5513503A (en) Telephone terminal control system
JPS56120233A (en) Station device for optical data
JPS5660177A (en) Automatic change-over unit for video signal input
JPS57183165A (en) Incoming connection system
JPS56128033A (en) Circuit switching system
JPS5737961A (en) Testing data generating equipment
JPS56122223A (en) Automatic dx and local reception switching device
JPS5568764A (en) Emergency information system
JPS53110313A (en) Auotmatic frequency control circuit with auotmatic frequency control signal transmission system state switched and changed automatically according to receiving state
JPS566589A (en) Multifrequency signal sending circuit
JPS5732110A (en) Time-constant switching device
JPS5391508A (en) Transmission control system for sound signal
JPS56149831A (en) Duplex line switching unit
JPS57194655A (en) Subscriber line test leading-in system
JPS57133732A (en) Optical signal switching device
JPS56103013A (en) Multiple unit control device