Title:
TIME SLOT SWITCHING METHOD
Document Type and Number:
Japanese Patent JPH0222938
Kind Code:
A
Abstract:
PURPOSE: To perform the switching of output data i.e., a time slot in a moment by changing the polarity of an electrical signal.
CONSTITUTION: A MAP RAM1 is divided into two areas A and B, and a switching register 2 for the switching of the areas A and B is provided. And the access areas A and B can be switched by an electrical characteristic written on the switching register 2. Namely, data in the area A is outputted and is written on the area B by setting the polarity of the switching register 2, and the data in the area B is outputted and is written on the area A by changing the polarity of the register 2. In such a way, it is possible to switch the output data from two MAP RAMs simultaneously in a moment.
Inventors:
HAYASHI HIDEKI
Application Number:
JP17358988A
Publication Date:
January 25, 1990
Filing Date:
July 11, 1988
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
H04J3/16; H04J3/00; (IPC1-7): H04J3/00
Attorney, Agent or Firm:
Sadaichi Igita
Next Patent: SIGNAL MULTIPLEXING CIRCUIT