Title:
MASTER-SLAVE SYSTEM
Document Type and Number:
Japanese Patent JPH04245546
Kind Code:
A
Abstract:
PURPOSE: To attain a master-slave system where a master can surely grasp the state of a slave and also the load of the master is never increased so much.
CONSTITUTION: A slave transmits periodically the information to show its own state. A master transmits the answers only to the state information on a state A received at first and the state information on a state different from the stored state of the slave. If such an event occurs to change a state B into a state C before an answer is received from the master to the information showing the state B, the slave changes its own state into the state C after an answer is received from the master to the information showing the state B and then transmits the information showing the state C.
Inventors:
MOCHIZUKI YASUYUKI
Application Number:
JP1095791A
Publication Date:
September 02, 1992
Filing Date:
January 31, 1991
Export Citation:
Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G06F11/30; (IPC1-7): G06F11/30
Attorney, Agent or Firm:
Atsushi Nakajima (2 outside)