Patent · US Expired

Semiconductor integrated device

US5305379A · kind A · utility

31Cited by
3References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 19, 1992
Grant dateApr 19, 1994
Priority date
Expiry dateMay 19, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B3/23
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A sending data buffer for holding sending data temporarily and transmitting the data to an echo canceler section is installed between a sending section and an echo canceler section of an echo canceler integrated circuit included in a subscriber line circuit of an integrated service digital network. The sending data buffer is operated in a shift register mode during a sending training mode, and operated in FIFO (first in-first out) mode during a sending/receiving training mode. Also, an adjustment function of the delay amount corresponding to the use setting is added.

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