Radio communication system capable of carrying out a data transmission with a high reliability
First Claim
1. A radio communication system comprises a master station for carrying out a bidirectional communication between said master station and a slave station in time division multiple access, said master station transmitting a master transmission signal having a master frame signal to said slave station, said slave station transmitting a slave transmission signal having a slave frame signal to said master station, wherein:
- said master station comprises;
master comparator means for comparing said slave frame signal with said master frame signal to produce a phase difference between said slave frame signal and said master frame signal as phase difference data;
first detecting means for detecting a field strength level in accordance with said slave transmission signal to judge whether or not said field strength level is less than a predetermined level, said first detecting means producing a field detection signal representative of detection of a field strength as a first detection signal when said field strength level is not less than said predetermined level, said first detecting means producing a non-field detection signal representative of no detection of said field strength as said first detection signal when said field strength level is less that said predetermined level; and
master transmitting means for transmitting, to said slave station, said phase difference data and said first detection signal carried on said master transmission signal;
said slave station comprising;
delay means for delaying said slave transmission signal in accordance with a given phase difference; and
supplying means responsive to said first detection signal for selectively supplying said delay means with said phase difference data as said given phase difference.
1 Assignment
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Accused Products
Abstract
A radio communication system comprises a master station for carrying out a bidirectional communication between the master station and a slave station in time division multiple access. The master station comprises comparator circuit for producing a phase difference data between a slave frame signal of a of a slave transmission signal and a master frame signal of a master transmission signal. A first detecting circuit produces a first detection signal representative of whether or not a field strength level is less than a predetermined level. The phase difference data and the first detection signal are transmitted to the slave station. The slave station comprises a delay circuit for give a delay to the slave transmission signal in accordance with a given phase difference. A supplying section is responsive to the first detection signal to selectively supply the delay means with the phase difference data as the given phase difference.
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Citations
10 Claims
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1. A radio communication system comprises a master station for carrying out a bidirectional communication between said master station and a slave station in time division multiple access, said master station transmitting a master transmission signal having a master frame signal to said slave station, said slave station transmitting a slave transmission signal having a slave frame signal to said master station, wherein:
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said master station comprises; master comparator means for comparing said slave frame signal with said master frame signal to produce a phase difference between said slave frame signal and said master frame signal as phase difference data; first detecting means for detecting a field strength level in accordance with said slave transmission signal to judge whether or not said field strength level is less than a predetermined level, said first detecting means producing a field detection signal representative of detection of a field strength as a first detection signal when said field strength level is not less than said predetermined level, said first detecting means producing a non-field detection signal representative of no detection of said field strength as said first detection signal when said field strength level is less that said predetermined level; and master transmitting means for transmitting, to said slave station, said phase difference data and said first detection signal carried on said master transmission signal; said slave station comprising; delay means for delaying said slave transmission signal in accordance with a given phase difference; and supplying means responsive to said first detection signal for selectively supplying said delay means with said phase difference data as said given phase difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification