WIRELESS COMMUNICATION DEVICE
First Claim
1. A wireless communication device comprising:
- a reception signal processor demodulating a received signal;
a first signal state detector detecting a reception state of a first signal from the received signal;
a second signal state detector detecting a reception state of a second signal from the received signal;
a transmission signal processor modulating a transmission signal; and
a controller controlling a change of a frequency of a channel transmitted to the transmission signal processor depending on a reception state of at least one of the first signal of the first signal state detector and the second signal of the second signal state detector.
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Accused Products
Abstract
Embodiments relate to a wireless communication device. The embodiment provides a wireless communication device comprising: a reception signal processor demodulating a received signal; a first signal state detector detecting a reception state of a first signal from the received signal; a second signal state detector detecting a reception state of a second signal from the received signal; a transmission signal processor modulating a transmission signal; and a controller controlling a change of a frequency of a channel transmitted to the transmission signal processor depending on a reception state of at least one of the first signal of the first signal state detector and the second signal of the second signal state detector.
32 Citations
20 Claims
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1. A wireless communication device comprising:
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a reception signal processor demodulating a received signal; a first signal state detector detecting a reception state of a first signal from the received signal; a second signal state detector detecting a reception state of a second signal from the received signal; a transmission signal processor modulating a transmission signal; and a controller controlling a change of a frequency of a channel transmitted to the transmission signal processor depending on a reception state of at least one of the first signal of the first signal state detector and the second signal of the second signal state detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless communication device comprising:
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a mixer converting a received signal into a baseband first signal and a baseband second signal; a plurality of first signal processors sequentially amplifying the baseband first signal and cutting the signal to a predetermined level to output a positive square wave; a plurality of second signal processors sequentially amplifying the baseband second signal and cutting the signal to a predetermined level to output a negative square wave; a summer summing the positive and negative square wave signals output from the plurality of first signal processors and second signal processors to output corresponding digital signals; and a controller recognizing the digital signals of the summer as reception information. - View Dependent Claims (12, 13, 14)
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15. A wireless communication device comprising:
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a first mixer mixing a signal corresponding to an operation section of a tag device with a first local frequency signal to output an energy signal; a second mixer mixing a signal corresponding to an operation section of a reader device with a second local frequency signal to output a data signal; and a synthesizer synthesizing the energy signal of the first mixer and the data signal of the second mixer to output a reader device signal. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification