Patent ID: 6510449
Filing Date: 2003-01-21
Classification: H04J,H04L

Abstract:
A data transmission system comprising:a master apparatus; a plurality of slave apparatuses, each comprising: a data detection circuit that monitors transmission line data being transmitted in a transmission line connecting said master apparatus and said slave apparatuses; and a data transmission circuit; and a point-to-multi-point connection connecting said master apparatus to said slave apparatuses, wherein: said data detection circuit provided at each of said slave apparatuses counts a number of continuous codes indicating a specific logic level in said transmission line data that said data detection circuit monitors and prompts said data transmission circuit provided at each of said slave apparatuses to start transmission of transmission data when said number of continuous codes has reached a count value set for said detection circuit, and said count value increases for a given slave apparatus when transmission of transmission data by said slave apparatus is completed.