Title:
BROADCASTING SYSTEM AND BROADCASTING EQUIPMENT
Document Type and Number:
Japanese Patent JP2022020417
Kind Code:
A
Abstract:
To confirm an operation of volume control only at places where volume control sections are installed since a changeover operation on a side of broadcasting equipment is unnecessitated by performing changeover between connection of business broadcasting and connection of emergency broadcasting concerning connection of an amplifier and speakers for each fixed time.SOLUTION: A broadcasting system includes an operation section, a sound source changeover section, an amplifier, speakers, volume control sections, and a speaker line control section. Thus, connection of business broadcasting and connection of emergency broadcasting are changed over for each fixed time concerning connection of the amplifier and speaker lines when a test operation is performed, so that the sound source changeover section can change over a sound source for business broadcasting and a sound source for emergency broadcasting at the same timing with the timing to change over connection of business broadcasting and connection of emergency broadcasting. Consequently, a changeover operation is unnecessitated on sides of a user and broadcasting equipment, thereby to enable operation confirmation of volume control only at places where the volume control sections are installed.SELECTED DRAWING: Figure 1
Inventors:
IKEFUCHI KAZUSUMI
Application Number:
JP2020123900A
Publication Date:
February 01, 2022
Filing Date:
July 20, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
G08B29/00; G08B27/00; H04H20/12; H04H20/59
Attorney, Agent or Firm:
Patent business corporation glory patent office