DATA TRANSMISSION SYSTEM

Title:

DATA TRANSMISSION SYSTEM

Document Type and Number:

Japanese Patent JPH0537509

Kind Code:

A

Abstract:

PURPOSE: To reduce an installation space by decreasing quantity of transmission paths.

CONSTITUTION: Three transistors(TRs) 1, 2, 3 are provided to a unit A. A collector of the TR 1 connects to a transmission line 4. Collectors of the TRs 2, 3 are both connected to a transmission line 5. A unit B is provided with comparators 6, 7, 8, resistors 9, 10 and reference power supplies 11, 12, 13. An inverting input terminal of the comparator 6 connects to the transmission line 4. An inverting input terminal of the comparator 6 is pulled down through the resistor 9 to form a transmission path for the open collector. Inverting input terminals of the comparators 7, 8 all connected to the transmission line 5. The inverting input terminals of the comparators 7, 8 are pulled down through the resistor 10. Then non-inverting input terminals of the comparators 6, 7, 8 are connected respectively to the reference power supplies 11, 12, 13.

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Inventors:

OTANI MITSURU

Application Number:

JP19143891A

Publication Date:

February 12, 1993

Filing Date:

July 31, 1991

Export Citation:

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Assignee:

TOSHIBA CORP

International Classes:

H04L7/06; H04L29/00; H04L29/08; (IPC1-7): H04L7/06; H04L29/00; H04L29/08

Attorney, Agent or Firm:

Takehiko Suzue

Next Patent: MONITOR CIRCUIT IN CHANNEL SELECTING STATE OF PARALLEL FRAME SYNCHRONIZATION CIRCUIT