JPH01103948U - - Google Patents

Info

Publication number
JPH01103948U
JPH01103948U JP19946587U JP19946587U JPH01103948U JP H01103948 U JPH01103948 U JP H01103948U JP 19946587 U JP19946587 U JP 19946587U JP 19946587 U JP19946587 U JP 19946587U JP H01103948 U JPH01103948 U JP H01103948U
Authority
JP
Japan
Prior art keywords
ringer
circuit
pulse width
width modulation
modulation signal
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
JP19946587U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP19946587U priority Critical patent/JPH01103948U/ja
Publication of JPH01103948U publication Critical patent/JPH01103948U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
JP19946587U 1987-12-28 1987-12-28 Pending JPH01103948U (US07655688-20100202-C00086.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19946587U JPH01103948U (US07655688-20100202-C00086.png) 1987-12-28 1987-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19946587U JPH01103948U (US07655688-20100202-C00086.png) 1987-12-28 1987-12-28

Publications (1)

Publication Number Publication Date
JPH01103948U true JPH01103948U (US07655688-20100202-C00086.png) 1989-07-13

Family

ID=31489914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19946587U Pending JPH01103948U (US07655688-20100202-C00086.png) 1987-12-28 1987-12-28

Country Status (1)

Country Link
JP (1) JPH01103948U (US07655688-20100202-C00086.png)

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