PATENT CLAIM ANALYSIS

Application Number: 16409594
Application Type: Utility
Filing Date: 2019-05
Publication Date: 2019-08
Patent Classification: ["702", "144000"]

Abstract:
Methods and systems for compensating for the absence or loss of a sensor measurement in a heading reference system such as an aircraft attitude and heading reference system, integrated standby unit, or vehicle inertial system, provides an estimate of the lost sensor measurement by estimating the bank angle after a detected vehicle turn. The estimate of the bank angle may also be used to estimate the vehicle's speed. Additionally, when the lost sensor measurement is a temperature measurement, the described methods and systems offer an improvement over estimating air temperature using a standard (e.g., ISA) model. The methods and systems also allow for the refinement of computed estimates using filtering techniques, such as low-pass or Kalman filtering. The methods may be iteratively repeated for each detected turn in order to maintain an accurate estimate of the lost sensor measurement or other estimates, such as vehicle speed.

Claim (Index 33):
A system for compensating for an absence of a sensor measurement in a heading reference system on a vehicle, wherein the sensor measurement is otherwise used to calculate the vehicle's speed, the system comprising:\n a memory; at least one temperature sensor mounted on the vehicle and coupled to the memory; at least one gyroscope mounted on the vehicle and coupled to the memory; at least one pressure sensor mounted on the vehicle and coupled to the memory; a processor coupled to the at least one temperature sensor, the at least one gyroscope, the at least one pressure sensor and the memory, the processor being configured to:\n detect a sensor measurement loss for at least one sensor, wherein a sensor measurement from the at least one sensor is otherwise used to calculate the vehicle's speed and the at least one sensor is at least one of the at least one temperature sensor and the at least one pressure sensor; \n detect a turn by the vehicle; \n in response to detecting the turn, calculate a first vehicle bank angle using the at least one gyroscope; \n estimate the vehicle's speed using the first vehicle bank angle and the at least one gyroscope; estimate a value for the sensor measurement using the vehicle's estimated speed and at least one of a properly operating pressure sensor or a properly operating temperature sensor mounted on the vehicle; and \n compensate for the sensor measurement loss using the estimated value for the sensor measurement which is derived, at least in part, using the properly operating pressure sensor or the properly operating temperature sensor.

Metadata:
- Claim Count in Document: 80.0
- Percentile: 100.0
- Lexical Diversity: 2.05063
- Patent Class: 702.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15281015', '11628115', '15620239', '11375486', '13013926']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2070408597409294
- 35 USC 102 Novelty (BERT): 0.6170786691981468
- Combined Prediction Score: 0.2480446406866511
- Mean Citation Score: 283.0108
- Max Citation Score: 599.4968
- Similarity Product: 504.43148871355055

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