JPS56132068A - Channel selection device - Google Patents

Channel selection device

Info

Publication number
JPS56132068A
JPS56132068A JP3531980A JP3531980A JPS56132068A JP S56132068 A JPS56132068 A JP S56132068A JP 3531980 A JP3531980 A JP 3531980A JP 3531980 A JP3531980 A JP 3531980A JP S56132068 A JPS56132068 A JP S56132068A
Authority
JP
Japan
Prior art keywords
channel
channel selection
chu4
pulses
reset
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
JP3531980A
Other languages
Japanese (ja)
Other versions
JPS6329475B2 (en
Inventor
Kazumi Kawashima
Masaaki Fujita
Minoru Ueda
Hirosuke Yamamoto
Hidekazu Taira
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 JP3531980A priority Critical patent/JPS56132068A/en
Publication of JPS56132068A publication Critical patent/JPS56132068A/en
Publication of JPS6329475B2 publication Critical patent/JPS6329475B2/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
    • H04N5/268—Signal distribution or switching

Abstract

PURPOSE:To display pictures of plural channels simultaneously with a small number of channel selection switches, by depressing the switch of an arbitrary channel to generate plural control signals having different numbers of pulses from the controller. CONSTITUTION:Reset output Reset and channel up outputs CHU1-CHU4 are output when 1ch of channel selection switch 23 is closed. In this case, though the reset signal is input to channel selecting circuit 13, signal CHU1 has no pulses, and the first position is selected. The reset signal and signals CHU2-CHU4 are input to channel selecting circuits 14-16 respectively, and signals CHU2, CHU3, and CHU4 have one, two, and three pulses respectively, and the 2nd-the 4th positions are selected respectively. Circuit 13 selects the same positions as channel selection keys even if channel selection keys 2-12ch are closed, and circuits 14-16 select large positions respectively. Consequently, four channel selecting circuits are selected with only one set of the channel selection switch.
JP3531980A 1980-03-19 1980-03-19 Channel selection device Granted JPS56132068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3531980A JPS56132068A (en) 1980-03-19 1980-03-19 Channel selection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3531980A JPS56132068A (en) 1980-03-19 1980-03-19 Channel selection device

Publications (2)

Publication Number Publication Date
JPS56132068A true JPS56132068A (en) 1981-10-16
JPS6329475B2 JPS6329475B2 (en) 1988-06-14

Family

ID=12438484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3531980A Granted JPS56132068A (en) 1980-03-19 1980-03-19 Channel selection device

Country Status (1)

Country Link
JP (1) JPS56132068A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0286393A (en) * 1988-09-22 1990-03-27 Matsushita Electric Ind Co Ltd Voice output control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0286393A (en) * 1988-09-22 1990-03-27 Matsushita Electric Ind Co Ltd Voice output control circuit

Also Published As

Publication number Publication date
JPS6329475B2 (en) 1988-06-14

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