Transceiver
First Claim
1. A transceiver comprising:
- a means for modulating predetermined data to obtain a received signal at a predetermined received frequency;
a local oscillator for producing a local oscillator frequency signal;
a means for producing an intermediate frequency signals by mixing said local oscillator frequency signal and said received signal;
a band pass filter for limiting a bandwidth of said immediate frequency signal;
a means for obtaining received data by demodulating said immediate frequency the bandwidth of which has been limited;
a measuring device for measuring receiving sensitivity by comparing said received data with said predetermined data; and
a frequency correction determinator for correcting a frequency of said local oscillator frequency signal and for setting said corrected frequency as a new frequency of said local oscillator frequency signal when a desired measuring result is obtained in said measuring device.
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Accused Products
Abstract
The transceiver of the present invention comprises: a modulator for modulating predetermined data to obtain a received signal at a predetermined received frequency; a local oscillator for producing a local oscillator frequency signal; a mixer for producing an intermediate frequency signal by mixing the local oscillator frequency signal and the received signal; a band pass filter for limiting a bandwidth of the immediate frequency signal; a demodulator for obtaining received data by demodulating the immediate frequency signal the bandwidth of which has been limited; a measuring device for measuring receiving sensitivity by comparing the received data with the predetermined data; and a frequency correction determinator for correcting a frequency of the local oscillator frequency signal and for setting the corrected frequency as a new frequency of the local oscillator frequency signal when a desired measuring result is obtained in the measuring device.
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Citations
7 Claims
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1. A transceiver comprising:
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a means for modulating predetermined data to obtain a received signal at a predetermined received frequency; a local oscillator for producing a local oscillator frequency signal; a means for producing an intermediate frequency signals by mixing said local oscillator frequency signal and said received signal; a band pass filter for limiting a bandwidth of said immediate frequency signal; a means for obtaining received data by demodulating said immediate frequency the bandwidth of which has been limited; a measuring device for measuring receiving sensitivity by comparing said received data with said predetermined data; and a frequency correction determinator for correcting a frequency of said local oscillator frequency signal and for setting said corrected frequency as a new frequency of said local oscillator frequency signal when a desired measuring result is obtained in said measuring device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification