PATENT CLAIM ANALYSIS

Application Number: 15984664
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-02
Patent Classification: ["330", "257000"]

Abstract:
An envelope tracking (ET) bias circuit includes an envelope tracking (ET) bias circuit includes an envelope detection circuit, an envelope amplifier circuit, and an envelope output circuit. The envelope detection circuit is configured to detect an envelope of an input signal, and output an envelope signal based on the detected envelope of the input signal. The envelope amplifier circuit is configured to differentially amplify the envelope signal in response to a first control signal and cancel a direct current (DC) offset of the envelope signal to output an amplified signal from which the DC offset is canceled. The envelope output circuit is configured to generate an ET bias current by selecting either one of a negative signal of the amplified signal and a positive signal of the amplified signal in response to a second control signal.

Claim (Index 3):
The envelope tracking bias circuit of  claim 1 , wherein the envelope signal of the envelope detection circuit is a single envelope signal, and\n the envelope amplifier circuit comprises:\n a single/differential circuit configured to convert the single envelope signal into a differential envelope signal; \n an amplifier configured to differentially amplify the differential envelope signal from the single/differential circuit to output a differential amplified signal; and \n a DC offset cancelling circuit configured to provide the amplified signal from the amplifier to an input terminal of the amplifier to cancel the DC offset from the amplified signal output from the amplifier.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 93.0
- Lexical Diversity: 2.86538
- Patent Class: 330.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15810764', '15719843', '15875463', '14754118', '15479323']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8126839277755897
- 35 USC 102 Novelty (BERT): 0.5165376495164926
- Combined Prediction Score: 0.7830692999496801
- Mean Citation Score: 265.608286
- Max Citation Score: 309.43185
- Similarity Product: 245.2472113019049

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