Title:
FREQUENCY MULTIPLICATION TYPE ALARM TRANSFER UNIT
Document Type and Number:
Japanese Patent JPS52123196
Kind Code:
A
Abstract:
PURPOSE: To transfer double alarm items compared with the proper aural frequency by utilizing the proper aural frequency signal through time division by synchronizing aural frequency signal.
Inventors:
SEIJI SHIYUUJIROU
SUGIYAMA MASAJI
SUGIYAMA MASAJI
Application Number:
JP3966176A
Publication Date:
October 17, 1977
Filing Date:
April 08, 1976
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
G08B25/00; G08B23/00; H04B1/00; H04B17/00; H04B17/10; H04B17/23; H04J3/00; H04J3/02; H04Q9/10; (IPC1-7): G08B25/00; H04B1/00; H04J3/02; H04Q9/10
Previous Patent: JPS52123195
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