Patent · US Expired

Balanced bidirectional or party line transceiver accommodating common-mode offset voltage

US4573168A · kind A · utility

26Cited by
2References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 31, 1984
Grant dateFeb 25, 1986
Priority date—
Expiry dateAug 31, 2004

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B1/58
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A biasing network comprising two nominal type GZ 2422D transorbs, two resistors nominal 68 ohms and one resistor nominal 110 ohms replicated at each combined differential current driver of nominal type Am26L531 and differential receiver of nominal type Am26L532, as jointly form a transceiver, which are upon a two-wire differential signal communication path allows communication to transpire at a common-mode offset voltage, nominally .+-.8 volts, which is greater than the differential signal voltage that the receiver does elsewise communicate at, and which common-mode offset voltage is at a level which might but for the biasing network damage or destroy the driver.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.