PATENT CLAIM ANALYSIS

Application Number: 16177097
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-03
Patent Classification: ["333", "164000"]

Abstract:
A phase shifter unit cell or a connected set of such cells that can be well isolated from external circuitry and which do not introduce insertion loss into an RF signal path, exhibit good return loss, and further provides additional advantages when combined with bracketing attenuator circuits. More particularly, embodiments integrate a high-isolation function within a phase shifter circuit by breaking the complimentary nature of the control signals to a phase shifter cell to provide greater control of switch states internal to the phase shifter cell and thus enable a distinct high-isolation state, and by including a switchable shunt termination resistor for use in the high-isolation state. Some embodiments are serially coupled to attenuator circuits to enable synergistic interaction that reduces overall die size and/or increases isolation. One such embodiment positions a high-isolation phase shifter cell in accordance with the present invention between bracketing programmable attenuators.

Claim (Index 1):
A digitally-controlled attenuation/phase shifter circuit having a circuit path for communicating an applied signal between a first port and a second port, including:\n (a) at least one variable attenuator serially coupled to the circuit path; (b) at least one variable phase shifter serially coupled to the circuit path and to the at least one variable attenuator, each variable phase shifter responsive to independent path selection control signals for selectively independently enabling communication of the applied signal from the first port to the second port through such variable phase shifter when not in an isolation mode, and for disabling communication of the applied signal from the first port to the second port through such variable phase shifter when in the isolation mode; and (c) at least one selectable termination circuit coupled to the circuit path, each operatively coupled through the circuit path to a corresponding one of the first or second ports and responsive to a distinct isolation circuit control signal for isolating the first port from the second port in the isolation mode.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 97.0
- Lexical Diversity: 1.5098
- Patent Class: 333.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15018188', '15462702', '15017433', '12015859', '14752353']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8391153876122808
- 35 USC 102 Novelty (BERT): 0.6015997178708592
- Combined Prediction Score: 0.8153638206381386
- Mean Citation Score: 286.43789400000014
- Max Citation Score: 513.32916
- Similarity Product: 479.94661071229217

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

Dataset: test