Abstract: A product is traditionally experienced in XR mainly through sight that accounts for about 80% of sensory inputs, thereby impeding an immersive experience of a product. In the present disclosure, an object's form factor guides a user's gestures in carrying out actions on an augmentation. A suitable physical object marker mimics physical touch interaction with a virtual product. Leveraging the sense of touch, the user gains deeper understanding of the virtual product, since the product responds to the user's natural gestures. In accordance with the present disclosure, transform data in the form of a position, an orientation and a scale associated with the physical object and user's hands handling the physical object are recorded to identify an associated gesture. Utilizing gesture to action mapping, the user's action is translated to the virtual product. The augmentation is modified in real time to provide an immersive experience.

Abstract: The present disclosure envisages a computer implemented network enabled system for structured and progressive online learning and learning assessment. The platform includes a learning assessment arc and a user point and scorecard badge repository that are automatically calibrated to reflect the user's learning progress and competency development in different subjects as users engage in various system activities such as creating or viewing or updating learning content, questions or learning assessments, or take learning assessments created by other users or by the system and/or provide quality rating for questions to improve the quality of questions and learning assessments in the system.

Abstract: Method and apparatus applied to loudspeakers of the type having an electrically driven diaphragm in an acoustic housing to reduce distortion from two sources. 1. Loss of high frequencies when sound from different regions of the diaphragm travel paths of different lengths and neutralize each other when they meet out of phase. 2. Noise generated primarily by the central region of the diaphragm when driven at high power. A compensating or phase plug is suspended axially within the housing adjacent the central region of the diaphragm. The plug, in cooperation with the walls of the housing, directs the sound through paths of uniform length to reduce loss of high frequencies. The plug has a sound absorbing inner portion adjacent the central portion of the diaphragm for absorbing the noise generated by the central portion at high power.