JPH0419855U - - Google Patents

Info

Publication number

JPH0419855U

JPH0419855U JP5674090U JP5674090U JPH0419855U JP H0419855 U JPH0419855 U JP H0419855U JP 5674090 U JP5674090 U JP 5674090U JP 5674090 U JP5674090 U JP 5674090U JP H0419855 U JPH0419855 U JP H0419855U

Authority

JP

Japan

Prior art keywords

circuit

transformer

office line

central office

line interface

Prior art date

1990-05-30

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

Links

• Espacenet
• Global Dossier
• Discuss

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• 239000003990 capacitor Substances 0.000 claims description 2
• 238000001514 detection method Methods 0.000 claims description 2
• 230000005236 sound signal Effects 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2