Communication system, communication apparatus and method, and program
First Claim
1. A communication system equipped with a communication apparatus for transmitting a transmission signal to another communication apparatus via a communication medium, said communication apparatus comprising:
- transmission means for transmitting said transmission signal to said other communication apparatus via said communication medium;
detection means for detecting a propagation signal propagated through said communication medium each time a predetermined amount of said transmission signal is transmitted from said transmission means;
signal collision judgment means for judging from said propagation signal detected by said detection means whether a signal collision occurs on said communication medium between said transmission signal transmitted from said transmission means and another signal transmitted from said other communication apparatus; and
control means for controlling transmission of said transmission signal from said transmission means in accordance with a judgment result by said signal collision judgment means.
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Accused Products
Abstract
A communication system equipped with a communication apparatus for transmitting a transmission signal to another communication apparatus via a communication medium, includes: transmission means for transmitting the transmission signal to the other communication apparatus via the communication medium; detection means for detecting a propagation signal propagated through the communication medium each time a predetermined amount of the transmission signal is transmitted from the transmission means; signal collision judgment means for judging from the propagation signal detected by the detection means whether a signal collision occurs on the communication medium between the transmission signal transmitted from the transmission means and another signal transmitted from the other communication apparatus; and control means for controlling transmission of the transmission signal from the transmission means in accordance with a judgment result by the signal collision judgment means.
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Citations
11 Claims
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1. A communication system equipped with a communication apparatus for transmitting a transmission signal to another communication apparatus via a communication medium, said communication apparatus comprising:
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transmission means for transmitting said transmission signal to said other communication apparatus via said communication medium;
detection means for detecting a propagation signal propagated through said communication medium each time a predetermined amount of said transmission signal is transmitted from said transmission means;
signal collision judgment means for judging from said propagation signal detected by said detection means whether a signal collision occurs on said communication medium between said transmission signal transmitted from said transmission means and another signal transmitted from said other communication apparatus; and
control means for controlling transmission of said transmission signal from said transmission means in accordance with a judgment result by said signal collision judgment means.
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2. A communication apparatus for transmitting a transmission signal to another communication apparatus via a communication medium, said communication apparatus comprising:
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transmission means for transmitting said transmission signal to said other communication apparatus via said communication medium;
detection means for detecting a propagation signal propagated through said communication medium each time a predetermined amount of said transmission signal is transmitted from said transmission means;
signal collision judgment means for judging from said propagation signal detected by said detection means whether a signal 3 collision occurs on said communication medium between said transmission signal transmitted from said transmission means and another signal transmitted from said other communication apparatus; and
control means for controlling transmission of said transmission signal from said transmission means in accordance with a judgment result by said signal collision judgment means. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A communication method for a communication apparatus for transmitting a transmission signal to another communication apparatus via a communication medium, said method comprising:
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a transmission step of transmitting said transmission signal to said other communication apparatus via said communication medium;
a detection step of detecting a propagation signal propagated through said communication medium each time a predetermined amount of said transmission signal is transmitted under control of a process of said transmission step;
a signal collision judgment step of judging from said propagation signal detected under control of a process of said detection step whether a signal collision occurs on said communication medium between said transmission signal transmitted under control of the process of said transmission step and another signal transmitted from said other communication apparatus; and
a control step of controlling transmission of said transmission signal from said transmission means in accordance with a judgment result by said signal collision judgment step.
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11. A program for making a computer execute a process of transmitting a transmission signal to another communication apparatus via a communication medium, said program comprising:
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a transmission step of transmitting said transmission signal to said other communication apparatus via said communication medium;
a detection step of detecting a propagation signal propagated through said communication medium each time a predetermined amount of said transmission signal is transmitted under control of a process of said transmission step;
a signal collision judgment step of judging from said propagation signal detected under control of a process of said detection step whether a signal collision occurs on said communication medium between said transmission signal transmitted under control of the process of said transmission step and another signal transmitted from said other communication apparatus; and
a control step of controlling transmission of said transmission signal from said transmission means in accordance with a judgment result by said signal collision judgment step.
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Specification