PATENT CLAIM ANALYSIS

Application Number: 15991746
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["348", "055000"]

Abstract:
Disclosed is a light guiding valve apparatus including an imaging directional backlight, an illuminator array and an observer tracking system arranged to achieve control of an array of illuminators which may provide a directional display to an observer over a wide lateral and longitudinal viewing range, wherein the number of optical windows presented to the observer as viewing windows is controlled dependent on the lateral and longitudinal position or speed of an observer.

Claim (Index 1):
A directional display apparatus comprising:\n a display device comprising:\n a transmissive spatial light modulator comprising an array of pixels arranged to modulate light passing therethrough; \n a waveguide having an input end and first and second, opposed first and second guide surfaces for guiding light along the waveguide that extend from the input end across the spatial light modulator; and \n an array of light sources at different input positions in a lateral direction across the input end of the waveguide, the waveguide being arranged to direct input light from light sources at the different input positions across the input end as output light through the first guide surface for supply through the spatial light modulator into respective optical windows in output directions distributed in the lateral direction in dependence on the input positions, \n the directional display apparatus further comprising:\n a sensor system arranged to detect a position of an observer relative to the display device; and \n a control system arranged to operate the light sources to direct light into one or more viewing windows comprising at least one optical window, in dependence on the detected position of the observer, \n wherein the control system is arranged to change the number of optical windows of the one or more viewing windows based on an output of the sensor system by increasing the number of optical windows of the one or more viewing windows in response to the detected position of the observer being in a position displaced in the lateral direction away from the normal to the display device by a predetermined amount.

Metadata:
- Claim Count in Document: 22.0
- Percentile: 93.0
- Lexical Diversity: 1.55102
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13897236', '15028694', '13896870', '13839552', '13838936']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7318678120612943
- 35 USC 102 Novelty (BERT): 0.6644792044527952
- Combined Prediction Score: 0.7251289513004443
- Mean Citation Score: 447.059302
- Max Citation Score: 494.82056
- Similarity Product: 491.3004394104385

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

Dataset: test