PATENT CLAIM ANALYSIS

Application Number: 15964499
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["345", "156000"]

Abstract:
Techniques of tracking a hand controller in a VR system involves detecting, by photodiodes in the hand controller, patterns of diffuse radiation generated by diffuse LEDs in the HMD. Such techniques can also include comparing the detected patterns to those simulated offline previously and represented in a lookup table (LUT). By looking up the detected patterns in the LUT, the VR system may determine the position and/or orientation of the hand controller with sub-millimeter accuracy. Some advantages of the improved techniques can be in the simplicity and/or low cost of the components without sacrificing accuracy in deriving the position and orientation of the hand controller.

Claim (Index 19):
The computer program product as in  claim 13 , wherein the hand controller includes (i) a transimpedance amplifier (TIA) configured to produce a first current from the pulse of diffuse electromagnetic radiation and a second current from external radiation received from radiation sources external to the plurality of radiation transmitters placed in the HMD and (ii) an error amplifier configured to cancel the second current;\n wherein the method further comprises:\n receiving the second current at the error amplifier, the second current producing a second voltage at the error amplifier; \n in response to receiving the second current, generating a control voltage proportional to a difference between the second voltage and a reference voltage; and \n generating a negative current from the control voltage, the negative current drawing away the second current from the TIA.

Metadata:
- Claim Count in Document: 27.0
- Percentile: 91.0
- Lexical Diversity: 1.80952
- Patent Class: 345.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15180819', '15334216', '15954415', '14587761', '14664740']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6325547124655383
- 35 USC 102 Novelty (BERT): 0.4867295546355381
- Combined Prediction Score: 0.6179721966825382
- Mean Citation Score: 126.152306
- Max Citation Score: 135.07373
- Similarity Product: 84.02464089070976

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