JPS51124301A - Display system for pushphone - Google Patents

Display system for pushphone

Info

Publication number
JPS51124301A
JPS51124301A JP4997575A JP4997575A JPS51124301A JP S51124301 A JPS51124301 A JP S51124301A JP 4997575 A JP4997575 A JP 4997575A JP 4997575 A JP4997575 A JP 4997575A JP S51124301 A JPS51124301 A JP S51124301A
Authority
JP
Japan
Prior art keywords
pushphone
display system
light emitting
minimize
display device
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
JP4997575A
Other languages
Japanese (ja)
Inventor
Yuzo Izumitani
Tadashi Akiyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4997575A priority Critical patent/JPS51124301A/en
Publication of JPS51124301A publication Critical patent/JPS51124301A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment

Abstract

PURPOSE:To minimize the power supply current necessary for the display device by periodically shifting the light emitting time of various light emitting diodes.
JP4997575A 1975-04-24 1975-04-24 Display system for pushphone Pending JPS51124301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4997575A JPS51124301A (en) 1975-04-24 1975-04-24 Display system for pushphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4997575A JPS51124301A (en) 1975-04-24 1975-04-24 Display system for pushphone

Publications (1)

Publication Number Publication Date
JPS51124301A true JPS51124301A (en) 1976-10-29

Family

ID=12846004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4997575A Pending JPS51124301A (en) 1975-04-24 1975-04-24 Display system for pushphone

Country Status (1)

Country Link
JP (1) JPS51124301A (en)

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