Provided is a gesture-recognition (GR) device that includes a printed circuit board (PCB) and a controller. The circuit board has an aspect ratio exceeding a threshold value that corresponds to at least a 70 percent difference between length and width of the PCB. The PCB includes a first unit and a second unit. The first unit corresponds to a base unit to be grasped by hand of a user. The second unit corresponds to an elongate unit that extends outward from the first unit. The second unit is characterized by a minimal wand form factor. A rigid strength of the second unit is based on at least a shape of an outer shell and a structural attribute of the second unit. The controller controls illumination of a plurality of light sources mounted on the second unit of the circuit board based on assertion signals.

Provided is a gesture-recognition (GR) device that includes a printed circuit board (PCB) and a controller. The circuit board has an aspect ratio exceeding a threshold value that corresponds to at least a 70 percent difference between length and width of the PCB. The PCB includes a first unit and a second unit. The first unit corresponds to a base unit to be grasped by hand of a user. The second unit corresponds to an elongate unit that extends outward from the first unit. The second unit is characterized by a minimal wand form factor. A rigid strength of the second unit is based on at least a shape of an outer shell and a structural attribute of the second unit. The controller controls illumination of a plurality of light sources mounted on the second unit of the circuit board based on assertion signals.

A screenless smart toy device may be a block made of natural or wooden material and may include a transparent or semi-transparent panel allowing one or more LEDs, from within the smart toy device, to be visible when illuminated. The smart toy device may read RFID values from various objects, such as tiles having objects depicted thereupon and RFID tags embedded within, and play different sounds and/or illuminate its LEDs with different colors based on the RFID tag that was read. The smart toy device may operate in a variety of modes, such as in a play/explore mode, quiz mode, definition mode, etc. The smart toy device may be configured into different modes and/or language settings by use of a mode card or separate application.

A screenless smart toy device may be a block made of natural or wooden material and may include a transparent or semi-transparent panel allowing one or more LEDs, from within the smart toy device, to be visible when illuminated. The smart toy device may read RFID values from various objects, such as tiles having objects depicted thereupon and RFID tags embedded within, and play different sounds and/or illuminate its LEDs with different colors based on the RFID tag that was read. The smart toy device may operate in a variety of modes, such as in a play/explore mode, quiz mode, definition mode, etc. The smart toy device may be configured into different modes and/or language settings by use of a mode card or separate application.

A rotary displacement structure of a fun device includes a container body. The container body has a space therein. A fluid is provided in the space. A rotary displacement unit is disposed in the space. The rotary displacement unit has buoyancy or gravity. The rotary displacement unit includes at least one blade assembly. When the container body is overturned, the rotary displacement unit will rise or descend through buoyancy or gravity. At the same time, the blade assembly enables the rotary displacement unit to rotate when ascending or descending, so as to obtain a different visual effect from the prior art.

A rotary displacement structure of a fun device includes a container body. The container body has a space therein. A fluid is provided in the space. A rotary displacement unit is disposed in the space. The rotary displacement unit has buoyancy or gravity. The rotary displacement unit includes at least one blade assembly. When the container body is overturned, the rotary displacement unit will rise or descend through buoyancy or gravity. At the same time, the blade assembly enables the rotary displacement unit to rotate when ascending or descending, so as to obtain a different visual effect from the prior art.

Locomotion-based motion sickness has long been a complaint amongst virtual reality gamers and drone pilots. Traditional head-mounted display experiences require a handheld controller (e.g. thumb stick, touchpad, gamepad, keyboard, etc.) for locomotion. Teleportation compromises immersive presence and smooth navigation leads to sensory imbalances that can cause dizziness and nausea (even when using room-scale sensor systems). Designers have therefore had to choose between comfort and immersion. The invention is a hands-free, body-based navigation technology that puts the participant's body in direct control of movement through virtual space. Participants lean forward to advance in space; lean back to reverse; tip left or right to strafe/sidestep; and rotate to look around. In some embodiments, the more a participant leans, the faster they go. Because the interactions were designed to respond to natural bearing and balancing instincts, movement coordination is intuitive and vection-based cybersickness is reduced.

Locomotion-based motion sickness has long been a complaint amongst virtual reality gamers and drone pilots. Traditional head-mounted display experiences require a handheld controller (e.g. thumb stick, touchpad, gamepad, keyboard, etc.) for locomotion. Teleportation compromises immersive presence and smooth navigation leads to sensory imbalances that can cause dizziness and nausea (even when using room-scale sensor systems). Designers have therefore had to choose between comfort and immersion. The invention is a hands-free, body-based navigation technology that puts the participant's body in direct control of movement through virtual space. Participants lean forward to advance in space; lean back to reverse; tip left or right to strafe/sidestep; and rotate to look around. In some embodiments, the more a participant leans, the faster they go. Because the interactions were designed to respond to natural bearing and balancing instincts, movement coordination is intuitive and vection-based cybersickness is reduced.

A phosphorescence and liquid toy comprising a pad having a first substrate and a second substrate wherein a first coating is applied to the first substrate. A second coating applied to the first coating and the first substrate wherein the second substrate is attached to the back side of the first substrate. The first coating having a liquid reactive material and the second coating having a phosphorescent reactive material. A pen having a cylindrical tube terminating in a tip on one end and opening on the other end creating a refillable reservoir wherein the reservoir is filled with liquid and a cap is removably attached to the opening.

A phosphorescence and liquid toy comprising a pad having a first substrate and a second substrate wherein a first coating is applied to the first substrate. A second coating applied to the first coating and the first substrate wherein the second substrate is attached to the back side of the first substrate. The first coating having a liquid reactive material and the second coating having a phosphorescent reactive material. A pen having a cylindrical tube terminating in a tip on one end and opening on the other end creating a refillable reservoir wherein the reservoir is filled with liquid and a cap is removably attached to the opening.