Abstract: The present invention provides a thermo-controlled smell generating device with an active cooling mechanism to allow a user thereof to control on/off of the device in a relatively short response time absent any temperature fluctuations even after a significant number of heating and cooling cycles. The present invention is ideal for generating olfaction in highly interactive or fast-changing environments such as virtual immersive environments.

Abstract: A multimodal haptic feedback interface installed with a multimode haptic patch stimulates a skin area of a user to provide a haptic feedback including first and second haptic-feedback components to be sensed under static tactile sensing and dynamic tactile sensing, respectively. The patch is mounted with mechanical actuators, electrostimulation electrodes and thermoelectric pellets. The actuators generate a two-dimensional pattern of pressure on the skin area for generating the first haptic-feedback component. The electrostimulation electrodes electrically stimulates the skin area, causing the user to feel a vibration or pressure for generating the second haptic-feedback component. The actuators and electrostimulation electrodes are optimized only for static tactile sensing and dynamic tactile sensing, respectively, reducing an implementation cost while optimized for accuracy in haptic feedback generation.

Abstract: A garment to be worn directly on the upper body of a person is formed from fabric and includes a flexible printed circuit board and a number of mounting points for electrocardiogram (ECG) electrodes to which ECG electrodes can be releasably attached. For each mounting point, a wire is embedded in the fabric. Each of the wires can electrically connect an ECG electrode attached to the respective mounting point to the flexible printed circuit board. The flexible printed circuit board includes processing circuitry configured for evaluating signals received via the wires from ECG electrodes attached to the mounting points to obtain results and further configured for transmitting the results to an external receiver. A system can include a garment and an external receiver in the form of a mobile device.

Abstract: The present disclosure provides a stretchable and flexible sweat-activated graphene-coated Ni foam-based Mg—O2 battery capable of powering an intelligent and flexible electronics for health monitoring purposes with different biosensors.

Abstract: The present disclosure provides an ultrathin, flexible, and tattoo-like triboelectric nanogenerator (TENG) with a well-designed aesthetic pattern. The tattoo-like TENG as an energy harvester can provide not only an aesthetic pattern, but also various practical applications. With the rising acceptance of people towards the tattoo, the tattoo-like TENG offers an alternative tattoo-like epidermal electronics covering traditional tattoo's advantages and further carries out other potential applications.

Abstract: In a handwriting recognition system, a fingertip-motion sensing device has first and second body parts respectively wearable on a distal phalanx and a proximal phalanx of a finger, and a bendable bridge connecting the two body parts. An accelerometer module in the first body part generates acceleration data of the fingertip motion whereas a battery module powering the accelerometer module is in the second body part, avoiding the first body part to be loaded with the battery module so as to reduce hindrance to a user in handwriting. The bridge is wavily shaped, enabling it to be extensible and retractable to avoid spurious interference generation due to unintended movement between the first body part and the distal phalanx. The sensing device wirelessly transmits the acceleration data to a computing device, which analyzes the acceleration data to determine handwritten characters by using a machine-learning classifier, preferably a convolutional neural network.

Abstract: The present disclosure provides an ultrathin, flexible, and tattoo-like triboelectric nanogenerator (TENG) with a well-designed aesthetic pattern. The tattoo-like TENG as an energy harvester can provide not only an aesthetic pattern, but also various practical applications. With the rising acceptance of people towards the tattoo, the tattoo-like TENG offers an alternative tattoo-like epidermal electronics covering traditional tattoo's advantages and further carries out other potential applications.

Abstract: A multimodal haptic feedback interface installed with a multimode haptic patch stimulates a skin area of a user to provide a haptic feedback including first and second haptic-feedback components to be sensed under static tactile sensing and dynamic tactile sensing, respectively. The patch is mounted with mechanical actuators, electrostimulation electrodes and thermoelectric pellets. The actuators generate a two-dimensional pattern of pressure on the skin area for generating the first haptic-feedback component. The electrostimulation electrodes electrically stimulates the skin area, causing the user to feel a vibration or pressure for generating the second haptic-feedback component. The actuators and electrostimulation electrodes are optimized only for static tactile sensing and dynamic tactile sensing, respectively, reducing an implementation cost while optimized for accuracy in haptic feedback generation.

Abstract: The present invention provides a stretchable and flexible multi-leads ECG monitoring apparatus having a primary circuitry encased in a thin and flexible polymer patch configured to be worn on a human body. At least four flexible leads are connected to the primary circuitry at a first end and are configured to be connected to ECG electrode patches at a second end. The ECG electrode patches being configured to be attached to a plurality positions on a human body. The wireless transmitter is configured to transmit the ECG monitoring signals to a receiving device for recording or displaying the ECG monitoring signal.

Abstract: The present invention provides a flexible and stretchable wearable electronic device system. The system includes a sweat-activated battery that has an anode and a cathode and a dry electrolyte-impregnated carrier in contact with the anode and the cathode. A sweat-absorbing layer is in contact with the dry electrolyte-impregnated carrier. An adhesive layer is provided for attaching the sweat-activated battery to the skin of a user. A flexible electronic device such as a sweat sensor or a lighting element is connected to the sweat-activated battery and is powered by the sweat-activated battery.

Abstract: A human-machine interaction device including a flexible substrate for mounting to a user, a sensing module arranged to sense deformation of the flexible substrate when the flexible substrate is mounted to the user and in response generate a sensed signal, a controller operably connected with the sensing module and arranged to process the sensed signal to obtain a processed signal, and a communication module arranged to communicate the sensed signal or the processed signal to an external electrical device for controlling operation of the external electrical device.

Abstract: An electronic sensing apparatus and a method of producing the electronic sensing apparatus includes a triboelectric generator encapsulated between a bottom substrate and a top encapsulation layer, wherein the triboelectric generator is arranged to generate a triboelectric sensing signal in response to a deformation of the bottom substrate and/or the top encapsulation layer.

Abstract: Provided are actuation devices, virtual reality devices formed from the actuation devices, and related virtual reality methods. The devices may comprise a plurality of spatially distributed actuators, each actuator configured for interacting with a biological skin surface; a wireless controller configured to receive operative command signals to control each of the actuators; and a wireless power system to power the actuators. Also provided are unique layouts of multiple interconnected devices to achieve large area coverage.

Abstract: Provided are actuation devices, virtual reality devices formed from the actuation devices, and related virtual reality methods. The devices may comprise a plurality of spatially distributed actuators, each actuator configured for interacting with a biological skin surface; a wireless controller configured to receive operative command signals to control each of the actuators; and a wireless power system to power the actuators. Also provided are unique layouts of multiple interconnected devices to achieve large area coverage.

Abstract: Provided are actuation devices, virtual reality devices formed from the actuation devices, and related virtual reality methods. The devices may comprise a plurality of spatially distributed actuators, each actuator configured for interacting with a biological skin surface; a wireless controller configured to receive operative command signals to control each of the actuators; and a wireless power system to power the actuators. Also provided are unique layouts of multiple interconnected devices to achieve large area coverage.

Abstract: The present teachings relate to charge-transporting metal oxide-polymer blend thin films which can be incorporated as the semiconductor component or one of the conductor components of a thin film transistor. Generally, the present charge-transporting metal oxide-polymer blend thin film includes a semiconducting or conducting metal oxide lattice and an electrically insulating polymer dispersed within the lattice. The electrically insulating polymer is present at about 20% or less by weight of the metal oxide.

Abstract: The present teachings relate to charge-transporting metal oxide-polymer blend thin films which can be incorporated as the semiconductor component or one of the conductor components of a thin film transistor. Generally, the present charge-transporting metal oxide-polymer blend thin film includes a semiconducting or conducting metal oxide lattice and an electrically insulating polymer dispersed within the lattice. The electrically insulating polymer is present at about 20% or less by weight of the metal oxide.

Abstract: The present teachings relate to a method of enabling metal oxide film growth via solution processes at low temperatures (?350° C.) and in a time-efficient manner. The present thin films are useful as thin film semiconductors, thin film dielectrics, or thin film conductors, and can be implemented into semiconductor devices such as thin film transistors and thin film photovoltaic devices.