Patent · US Expired

Time division speech path apparatus

US5155728A · kind A · utility

8Cited by
6References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 16, 1990
Grant dateOct 13, 1992
Priority date
Expiry dateJul 16, 2010

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04J3/0623
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A time division speech path apparatus includes a frame synchronization detector, a pointer detector, a pointer inserting circuit, an address converter, a selector, and a demultiplexer. Pointers are set on highways so that a relationship between the time slots on the highways and addresses of the speech path memory at which the time slots are written is determined on the basis of the frame phases and pointer values of the respective highways. Data read out from the speech path control memory are converted into addresses in accordance with this relationship and are supplied as read addresses to the speech path memory.

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