- Patent JPS6310619

Document Type and Number:

Japanese Patent JPS6310619

Kind Code:

B2

Abstract:

To supervise the operation of an arithmetic unit of a digital transmultiplexer intended to convert a TDM-signal into a FDM-signal and vice versa, a pilot signal is utilized as the test signal which pilot signal is also used to control the level of the received FDM-signals and is processed in the transmultiplexer. The pilot signal selection filter used for controlling the level is used, also in time-division multiplex, for selecting a component having a frequency equal to the pilot signal frequency and occurring in each of the two input and output signals of the arithmetic unit.

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Inventors:

JORUJU BONERO
PATORISU ZEN
MISHERU KUUDORUUSU

Application Number:

JP6570079A

Publication Date:

March 08, 1988

Filing Date:

May 29, 1979

Export Citation:

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Assignee:

TEREKOMYUNIKASHION RAJIOEREKUTORITSUKU E TEREFUONIKU TRT

International Classes:

H04J1/00; H04J1/05; H04J1/16; H04J3/00; H04J4/00

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