PATENT CLAIM ANALYSIS

Application Number: 16230077
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-05
Patent Classification: ["375", "285000"]

Abstract:
A system for wired analog self-interference cancellation includes a coarse delayer that delays a sampled RF transmit signal by a first delay amount; a frequency downconverter that downconverts the sampled RF transmit signal to IF; a first canceller tap group comprising a first per-tap-group delayer, a first sampling coupler, a first per-tap delayer, and first and second analog vector modulators that generates an IF self-interference cancellation signal; a frequency upconverter that upconverts the IF self-interference cancellation signal to RF; and a receive coupler that combines the RF self-interference cancellation signal with the RF receive signal, reducing self-interference.

Claim (Index 16):
A system for wired analog self-interference cancellation comprising:\n a transmit coupler, communicatively coupled to a radio frequency (RF) transmit signal of a wired communication system, that samples the RF transmit signal to create a sampled RF transmit signal having an RF carrier frequency; an analog-self-interference canceller comprising:\n a frequency downconverter, comprising a mixer, a local oscillator, and an intermediate frequency (IF) filter, wherein the frequency downconverter converts, by heterodyning, the sampled RF transmit signal to a sampled IF transmit signal having an IF carrier frequency, wherein the IF carrier frequency is less than the RF carrier frequency; \n a sampling coupler that splits the sampled IF transmit signal into first and second sampled IF transmit signals; \n a first canceller tap group comprising a first per-tap-group delayer, a first sampling coupler, a first per-tap delayer, first and second analog vector modulators, and a first coupling combiner; wherein the first per-tap-group delayer delays the first sampled IF transmit signal; wherein the first sampling coupler splits the first sampled IF transmit signal, after the first per-tap-group delayer, into first and second IF transmit signal components; wherein the first analog vector modulator generates a first IF self-interference cancellation signal component from the first IF transmit signal component; wherein the first per-tap delayer delays the second IF transmit signal component, resulting in a delayed second IF transmit signal component; wherein the second analog vector modulator generates a second IF self-interference cancellation signal component from the delayed second IF transmit signal component; wherein the first combining coupler combines the first and second IF self-interference cancellation signal components to generate a first IF self-interference cancellation signal super-component; \n a second canceller tap group comprising a second per-tap-group delayer, a second sampling coupler, a second per-tap delayer, third and fourth analog vector modulators, and a second combining coupler; wherein the second per-tap-group delayer delays the second sampled IF transmit signal; wherein the second sampling coupler splits the second sampled IF transmit signal, after the second per-tap-group delayer, into third and fourth IF transmit signal components; wherein the third analog vector modulator generates a third IF self-interference cancellation signal component from the third IF transmit signal component; wherein the second per-tap delayer delays the fourth IF transmit signal component, resulting in a delayed fourth IF transmit signal component; wherein the fourth analog vector modulator generates a fourth IF self-interference cancellation signal component from the delayed fourth IF transmit signal component; wherein the second combining coupler combines the third and fourth IF self-interference cancellation signal components to generate a second IF self-interference cancellation signal super-component; \n a first coarse delayer that delays the first IF self-interference cancellation signal super-component by a first delay amount, delays the second IF self-interference cancellation signal super-component by a second delay amount, and combines the first and second IF self-interference cancellation signal super-components to generate an IF self-interference cancellation signal; wherein the second delay amount is greater than the first delay amount; \n a frequency upconverter comprising a mixer, a local oscillator, and an RF filter, wherein the frequency upconverter converts, by heterodyning, the IF self-interference cancellation signal to an RF self-interference cancellation signal having the RF carrier frequency; and \n a receive coupler, communicatively coupled to an RF receive signal of the wired communication system, that combines the RF self-interference cancellation signal with the RF receive signal, resulting in an RF composite receive signal; wherein the RF composite receive signal contains less self-interference than the RF receive signal.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 98.0
- Lexical Diversity: 2.12
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16052458', '14456367', '14569354', '14728501', '14812552']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5510280204192476
- 35 USC 102 Novelty (BERT): 0.6221160504871479
- Combined Prediction Score: 0.5581368234260377
- Mean Citation Score: 346.836726
- Max Citation Score: 477.7151
- Similarity Product: 469.0365831242741

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