PATENT CLAIM ANALYSIS

Application Number: 15896632
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-07
Patent Classification: ["375", "316000"]

Abstract:
An Interleaved Radio Frequency Digital-to-Analog Converter (RF DAC) suitable for use in cellular base stations and optimized to give both a wide RF tuning range and a wide RF bandwidth is disclosed. The RF DAC uses two levels of interleaving, the first providing a direct conversion path from Base Band (BB) to RF, and the second providing a variable interleaving factor through the use of summation to optimize the output bandwidth as a function of the RF center frequency. Digital Interpolation, including an arbitrary sample rate conversion filter, allows the RF DAC to operate from a wide range of possible BB sample rates and the DAC sample rate is a fixed ratio of the RF center frequency. As a result, the spurious outputs from the RF DAC are in known locations that are relatively easy to filter out, minimizing the frequency planning tasks required for a complete RF system design.

Claim (Index 16):
A method of effecting digital-to-analog conversion, the method comprising:\n converting a first analog sample stream into a first output, the first output being a first digital output; generating a complementary output of the first output to obtain a first complementary output; converting a second analog sample stream into a second output, the second output being a second digital output; generating a complementary output of the second output to obtain a second complementary output; and multiplexing the first output, the first complementary output, the second output, and the second complementary output to obtain an interleaved signal that contains a repeating sequence of alternating outputs, a conversion of the first analog sample stream and of the second analog sample stream being effected in accordance with a local oscillator.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 88.0
- Lexical Diversity: 1.82222
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15230965', '15860848', '12571201', '15787298', '13557067']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4242656318304726
- 35 USC 102 Novelty (BERT): 0.6392917975674851
- Combined Prediction Score: 0.4457682484041738
- Mean Citation Score: 301.0444540000001
- Max Citation Score: 585.9580000000002
- Similarity Product: 568.0305075414183

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test