Abstract:
A wireless communication device and method includes an auxiliary antenna that can actively cancel at least a portion of a near-field component of an electric field generated by a main transmit antenna. The auxiliary antenna can help comply with specific absorption rate requirements and can reduce undesirable signal rectification in hearing aid components.
Abstract:
A user computer device is provided that comprises a temperature sensitive touchscreen having a temperature sensitive user interface comprising multiple thermal energy emitter/detector devices, such as thermocouples. The multiple thermal energy emitter/detector devices are capable both of detecting thermal energy and emitting thermal energy. The temperature sensitive user interface generates thermal patterns that may be transferred to other thermally sensitive electronic devices or that may be used to authenticate the user computer device. The user computer device also can detect and thermally communicate with a thermal energy docking station and, based on thermal recognition, activate applications displayed on the temperature sensitive touchscreen. Further, the user computer device can auto-bias a temperature of the temperature sensitive user interface in order to better assure proper operation of the temperature sensitive user interface in all operating conditions.
Abstract:
A wireless communication device and method includes an auxiliary antenna that can actively cancel at least a portion of a near-field component of an electric field generated by a main transmit antenna. The auxiliary antenna can help comply with specific absorption rate requirements and can reduce undesirable signal rectification in hearing aid components.
Abstract:
An optical communication system is provided for conveying signals between multiple housing elements of a device, where respective optical detectors and optical light sources interact via a light guide associated with each communication path, where an optical signal produced by the optical light source and received by the optical detector travels a path where at least a first light redirection unit redirects the optical signal between an angle in which the optical signal travels along at least a portion of the length of the light guide, and an angle which allows the optical signal to exit the light guide. In at least some instances, the multiple housing elements correspond to at least a pair of housing elements that are incorporated as part of a communication device having a slider configuration. In some of the same or still further instances, one or more of the light redirection units are diffractive optical elements. In some instances, one or more of the light redirection units are reflectors.
Abstract:
A peripheral electronic device (106) can be equipped with a coupler, which in one embodiment is a mechanical coupler (136). A radio-frequency interface (108) allows a radio-frequency transceiver (110) of one electronic device to take advantage of one or more antennas (1101,1102,1103,1104) disposed within the peripheral electronic device (106). For example, the radio-frequency interface (108) can increase the matrix channel order by making the at least some additional MIMO antennas available for usage by the radio-frequency transceiver (110). The mechanical coupler can be configured to allow a camera or display of an inserted device to add image data functionality as well.
Abstract:
A pump and motor unit 100 and method for pumping fluid is provided. The pump and motor unit 100 has a rotor element 102 which provides both pumping force and motor force. The rotor element 102 contains a fluid flow channels 200 which pump the fluid through the pump and motor 100 when rotated using centrifugal pump principles. The rotor element 102 further includes magnets 108, preferably permanent magnets, which generate a rotor magnetic field. First and second stator seconds 104 and 106 generate a stator magnetic field using coils 300-314. The rotor and stator magnetic fields interact and generate a torque which rotates the rotor element 102 using brushless DC motor principles.
Abstract:
A target assembly for a projection cathode ray tube is provided wherein the target member is cooled by convective fluid heat transfer occurring within and around a partially hollow support shaft screw. The target member is a solid block of relatively high, thermally conductive material, such as aluminum, coated with an electron beam sensitive material. The shaft screw also comprises relatively high thermally conductive material, such as copper, and has an internal passage leading from a source of cooling fluid, such as dry air, to a annular array of ports located in a distal portion of the supporting shaft screw. The distal portion of the shaft screw has a flaring cross section for increased heat transfer. A bellows encloses the distal portion forming a passageway so as to cause the cooling fluid to also flow along the external surface of the shaft screw. This arrangement adds to the effective convective heat transfer from the shaft screw to the cooling fluid. A rubber boot surrounds the proximate end of the shaft screw including an adjustable mounting pad to form a portion of the passageway and isolate high voltage potentials. A temperature sensitive detecting element is attached to the target member to sense changes in the temperature during operation. A controller responds to the sensed changes in the temperature and changes the flow rate of the cooling fluid to maintain the temperature relatively constant.
Abstract:
An electric motor (100) for controlling the lateral displacement of a shaft (114) connected to a rotor (104) of the electric motor (100) is provided. The electric motor (100) includes one or more stator conductors (106) for carrying a current and one or more permanent magnets (108) to produce a magnetic field (504). The one or more stator conductors (106) interact with the magnetic field (504) when the power is applied, to purposely generate a force with an axial (Fa) and a circumferential component (Fc). The electric motor (100) includes the shaft (114) that travels along a rotor axis (506) in an axial direction when the power is applied, under an action of the axial component of the force. However, when the power is removed, the shaft (114) retracts under the action of a biasing force from a tension device (118).
Abstract:
A technique for enhancing thermal coupling between a device and a thermally conductive material includes using porous portions to draw fluid through conduits. Capillary action then draws fluid from the porous portion into a space between the device and the thermally conductive material to provide a fluid layer between the device and the thermally conductive material.
Abstract:
A pump and motor unit 100 and method for pumping fluids is provided. The pump and motor unit 100 comprises a pair of rotors 102 and 104 encased by a stator casing 106. Fluid is pumped into and out of the pump and motor unit 100 as the rotors 102 and 104 are rotated. The stator casing 106 seals the fluid around the rotors 102 and 104 and further generates a revolving magnetic field which rotates the rotors 102 and 104. The magnetic field may be generated by single phase current or by multiphase current. Both, or one, of the rotors 102 and 104 may be driven by the magnetic field. Rotors which are being driven are preferably fabricated from an iron-based material. Rotors which are not being driven are preferably fabricated from a non-magnetic material, such as carbon-nylon. Alternatively, the rotors 102 and 104 may comprise, at least in part, a permanent magnet material with brushless direct current motor technology being used to rotate the rotors.