PATENT CLAIM ANALYSIS

Application Number: 15889945
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-10
Patent Classification: ["455", "196100"]

Abstract:
A radio frequency signal can be received in an intermediate frequency mode suitable for radio wave reception conditions. An oscillator has a variable oscillation frequency. A quadrature demodulator includes a frequency mixer and generates an intermediate frequency signal having an intermediate frequency lower than the frequency of the radio frequency signal. An ADC receives the intermediate frequency signal passed through an analog filter and converts the received intermediate frequency signal to a digital signal. A channel selection signal processing section generates a demodulated signal from the intermediate frequency signal converted to the digital signal. A mode control section switches the operating mode of the quadrature demodulator between a zero intermediate frequency mode and a low intermediate frequency mode in accordance with the radio wave reception conditions.

Claim (Index 11):
The radio receiver according to  claim 1 ,\n wherein the received signal processing section includes a first digital filter that passes frequency components not higher than the frequency of the selected wave frequency band including the demodulated signal and generates the demodulated signal, a second digital filter that passes frequency components not higher than a predetermined frequency, a complex multiplier that shifts the frequency spectrum of the intermediate frequency signal to a lower frequency side or a higher frequency side by a predetermined frequency, and a path selector switch that changes the signal path of the intermediate frequency signal; wherein, when the zero intermediate frequency mode is to be selected as the operating mode of the quadrature demodulator, the mode control section controls the path selector switch in such a manner that an intermediate frequency signal converted to a digital signal by the analog-to-digital converter is inputted to the first digital filter and to the complex multiplier, and that the output of the complex multiplier is inputted to the second digital filter; and wherein, when the low intermediate frequency mode is to be selected as the operating mode of the quadrature demodulator, the mode control section controls the path selector switch in such a manner that an intermediate frequency signal converted to a digital signal by the analog-to-digital converter is inputted to the complex multiplier through the second digital filter, and that the output of the complex multiplier is inputted to the first digital filter.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 88.0
- Lexical Diversity: 2.27586
- Patent Class: 455.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11916000', '11815102', '10281046', '13206684', '09389179']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6886314337276864
- 35 USC 102 Novelty (BERT): 0.4867169348652821
- Combined Prediction Score: 0.668439983841446
- Mean Citation Score: 213.698896
- Max Citation Score: 217.40291
- Similarity Product: 176.62027154148578

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test