Control system for communication between units
First Claim
1. A communication system for communication between an originating unit and a destination unit through a plurality of relaying units, wherein:
- said originating unit, said plurality of relaying units and said destination unit are each provided with an adjacent originating address when viewed from a lower adjacent unit in the communication route, and an adjacent destination address when viewed from an upper adjacent unit in the communication route;
said adjacent originating address being different from said adjacent destination address;
said adjacent destination address being different from other adjacent destination addresses provided at units connected to said upper adjacent unit for identifying said units;
said originating unit comprising;
destination address forming means for forming a destination address for specifying said destination address; and
signal message sending means, operatively connected to said destination address forming means, for sending a signal message and said destination address to a lower adjacent unit in the communication route in accordance with said destination address;
said destination address being represented by a set of adjacent destination addresses of all lower units provided on the communication path between said originating units and said destination unit;
each of said relaying units comprising;
address receiving means for receiving an originating address and a destination address from an upper adjacent unit adjacent to the unit receiving said message signal; and
signal message routing means, operatively connected to said address receiving means, for sending said signal message to a lower adjacent unit in the communication route and adjacent to the unit receiving said signal message in accordance with the received destination address;
said signal message routing means comprising;
destination determining means, for discriminating whether the received destination address includes data for determining that the unit receiving said signal message is said destination unit when said received destination address includes no data;
address changing means, operatively connected to said address discriminating means, for changing said received originating address to a new originating address by adding said adjacent originating address to said received originating address and for changing the received destination address to a new destination address by deleting said adjacent destination address of an upper unit adjacent to the unit receiving said message signal from the received destination address; and
path selecting means for selecting, based on the changed destination address, a path for transferring the changed originating address and the changed destination address to said lower adjacent unit, when said destination address includes any data.
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Accused Products
Abstract
In control system for communication between units, each unit stores an adjacent-unit identifying number fixedly corresponding to each unit adjacent to one of the units, and forms a relative address, the relative address of the originating unit being "nil" and the relative address of the destination unit being expressed by a set of adjacent-unit identifying numbers of all units provided on the communication path between the originating unit and the destination unit, excluding the originating unit and including the destination unit, the signal message routing being executed in such a way that, when the received destination address is "nil", the unit receiving the message is determined to be the destination unit, and when the received destination address is not "nil", the unit receiving the message transfers the message to the next-stage unit, whereby a simple addressing process is realized.
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Citations
14 Claims
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1. A communication system for communication between an originating unit and a destination unit through a plurality of relaying units, wherein:
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said originating unit, said plurality of relaying units and said destination unit are each provided with an adjacent originating address when viewed from a lower adjacent unit in the communication route, and an adjacent destination address when viewed from an upper adjacent unit in the communication route; said adjacent originating address being different from said adjacent destination address; said adjacent destination address being different from other adjacent destination addresses provided at units connected to said upper adjacent unit for identifying said units; said originating unit comprising; destination address forming means for forming a destination address for specifying said destination address; and signal message sending means, operatively connected to said destination address forming means, for sending a signal message and said destination address to a lower adjacent unit in the communication route in accordance with said destination address; said destination address being represented by a set of adjacent destination addresses of all lower units provided on the communication path between said originating units and said destination unit; each of said relaying units comprising; address receiving means for receiving an originating address and a destination address from an upper adjacent unit adjacent to the unit receiving said message signal; and signal message routing means, operatively connected to said address receiving means, for sending said signal message to a lower adjacent unit in the communication route and adjacent to the unit receiving said signal message in accordance with the received destination address; said signal message routing means comprising; destination determining means, for discriminating whether the received destination address includes data for determining that the unit receiving said signal message is said destination unit when said received destination address includes no data; address changing means, operatively connected to said address discriminating means, for changing said received originating address to a new originating address by adding said adjacent originating address to said received originating address and for changing the received destination address to a new destination address by deleting said adjacent destination address of an upper unit adjacent to the unit receiving said message signal from the received destination address; and path selecting means for selecting, based on the changed destination address, a path for transferring the changed originating address and the changed destination address to said lower adjacent unit, when said destination address includes any data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification