HYBRID CIRCUIT AND MODEM CONTAINING NO TRANSFORMER

Title:

HYBRID CIRCUIT AND MODEM CONTAINING NO TRANSFORMER

Document Type and Number:

Japanese Patent JPH0851496

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide hybrid arrangement cancelling distortion from a transmission route amplifier and satisfactorily cancelling a transmission signal. SOLUTION: A hybrid circuit is provided with a transmission amplifier 55 with an output driving the base of a bipolar transistor 50. The emitter of this transistor 50 is connected to a sense resistor 59 and this is connected to one of telephone lines on the other hand. The collector of the transistor 50 is connected to the other one of the telephone lines. An adding node 53 connects a signal on a telephone line and a signal inserting the resistor 59 and the other signals of the node 53 are received from the telephone line which is not provided with a signal to transmit.

Inventors:

DONARUDO TOOMASU KUWAINAA
DONARUDO REIMONDO RATEYUERU

Application Number:

JP19410295A

Publication Date:

February 20, 1996

Filing Date:

July 07, 1995

Export Citation:

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Assignee:

AT & T CORP

International Classes:

H04M1/00; H04B1/58; H04L27/00; H04M1/58; H04M11/00; H04Q3/42; (IPC1-7): H04M11/00; H04M1/00; H04Q3/42

Attorney, Agent or Firm:

Hirofumi Mimata

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