Communication method and communication system

• US 6,301,261 B1
• Filed: 05/27/1998
• Issued: 10/09/2001
• Est. Priority Date: 05/27/1997
• Status: Expired due to Fees

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Ito, Narihisa, Nakatsugawa, Yoshinori
• Primary Examiner(s): Vu, Huy D.
• Assistant Examiner(s): Tran, Thien D
• Application Number:
  US09/084,742
• Time in Patent Office: 1,231 Days
• Field of Search: 370/258, 370/470, 370/471, 370/390, 370/392, 370/397, 370/399, 370/409, 370/400, 370/432, 370/452, 370/453, 370/455, 370/460, 370/404, 370/405, 370/406
• US Class Current: 370/455
• CPC Class Codes: H04L 12/427 with decentralised control

Abstract

First, communication data are transmitted from an arbitrary originating source communication device to the other plural destination communication devices. When receiving the communication data, the respective destination communication devices which receive the communication data make responses including the receiving states of the communication data to the originating source communication device, and thereafter change a next destination of the communication data into a next address according to the description contents of a destination identifier read from the memory as next address storage means so as to transmit the communication data whose destination was changed to the communication device corresponding to the next address.

Claims

1. A communication method used in a communication system arranged by connecting a plurality of communication devices through a data transmission line, said method of transmitting communication data from an arbitrary originating source communication device to the other plural destination communication devices, said method comprising the steps of:

including in the communication data at least destinations of the communication data, an originating source of the communication data and a destination identifier used for identifying next destinations of the communication data when the communication data circulate in the plural destination communication devices;

providing the respective communication devices with next address storage means for previously storing next addresses representing next destinations of the communication data according to description contents of the destination identifier therein;

transmitting the communication data from the originating source communication device to one of the plural destination communication devices;

making responses including transmitting states of the communication data from the respective destination communication devices to the originating source communication device when the respective destination communication devices receives the communication data;

changing the next destination of the communication data into a next address read from the next address storage means according to the description contents of the destination identifier; and

transmitting the communication data whose destination was changed to the communication device corresponding to the next address after making the response.

3. The communication method according to claim 1, wherein the circulating order of the communication data in the plural destination communication devices is set so that the communication data are circulated to the destination communication devices whose response time is longer taking priority with referring to lengths of inherent response time required for the respective destination communication devices to receive the communication data from the originating source communication device and make the responses including the receiving states of the communication data to the originating source communication device.

2. A communication method used in a communication system arranged by connecting a plurality of communication devices through a data transmission line, said method of transmitting communication data from an arbitrary originating source communication device to the other plural destination communication devices, said method comprising the steps of:

including in the communication data at least destinations of the communication data, a transmission source of the communication data, an originating source of the communication data and a destination identifier used for identifying next destinations of the communication data when the communication data circulates in the plural destination communication devices;

providing the respective communication devices with next address storage means for previously storing next addresses representing next destinations of the communication data according to description contents of the destination identifier therein;

transmitting the communication data from the originating source communication device to one of the plural destination communication devices;

making responses including transmitting states of the communication data from the respective destination communication device to the originating source communication device and a communication device to be a transmission source of the communication data when the respective destination communication device receives the communication data;

changing the next destination of the communication data into a next address read from the next address storage means according to the description contents of the destination identifier and changing the transmission source of the communication data into a self addresses of the destination communication device; and

transmitting the communication data whose destination and transmission source were changed to the communication device corresponding to the next address after making the response.

4. A communication system comprising a plurality of communication devices connected through a data transmission line so that communication data are transmitted from an arbitrary originating source communication device to said other plural destination communication devices;

wherein

said communication data includes at least destinations of said communication data, an originating source of said communication data and a destination identifier used for identifying next destinations of said communication data when said communication data circulate in said plural destination communication devices;

said respective communication devices including next address storage means for previously storing next addresses representing next destinations of said communication data according to description contents of the destination identifier therein;

said originating source communication device including;

originating source transmission means for transmitting said communication data to one of said plural destination communication devices; and

originating source response receiving means for receiving responses including receiving states of said communication data in said respective destination communication devices;

said respective destination communication devices including;

communication data receiving means for receiving said communication data;

response transmission means for when said communication data receiving means receives said communication data, making responses including said receiving states of said communication data to said originating source communication device; and

communication data transmission means for changing a next destination of said communication data into a next address read from said next address storage means according to said description contents of said destination identifier and transmitting said communication data whose destination was changed to said communication device corresponding to the next address after the responses of said response transmission means.

6. The communication system according to claim 4, wherein the circulating order of the communication data in the plural destination communication devices is set so that the communication data are circulated to the destination communication devices whose response time is longer taking priority with referring to lengths of inherent response time required for the respective destination communication devices to receive the communication data from the originating source communication device and make the responses including the receiving states of the communication data to the originating source communication device.

5. A communication system comprising a plurality of communication devices connected through a data transmission line so that communication data are transmitted from an arbitrary originating source communication device to said other plural destination communication devices;

wherein

said communication data including at least destinations and a transmission source of said communication data, an originating source of said communication data and a destination identifier used for identifying next destinations of said communication data when said communication data circulate in said plural destination communication devices;

said respective communication devices including next address storage means for previously storing next addresses representing next destinations of said communication data according to description contents of said destination identifier therein;

said originating source communication device including;

originating source transmission means for transmitting said communication data to one of said plural destination communication devices; and

originating source response receiving means for receiving responses including receiving states of said communication data in said respective destination communication devices;

said respective destination communication devices including;

communication data receiving means for receiving said communication data;

response transmission means for when said communication data receiving means receives said communication data, making responses including said receiving states of said communication data to said originating source communication device and said communication device to be a transmission source of said communication data;

destination response receiving means for receiving the responses including the receiving states of said communication data in said respective communication devices; and

communication data transmission means for changing a next destination of said communication data into a next address read from said next address storage means according to the description contents of the destination identifier and changing the transmission source of said communication data into a self address of said destination communication device and transmitting said communication data whose destination and transmission source were changed to said communication device corresponding to the next address after the responses of said response transmission means.