72results about How to "Effective range" patented technology

An optical imaging system for pickup, sequentially arranged from an object side to an image side, comprising: the first lens element with positive refractive power having a convex object-side surface, the second lens element with refractive power, the third lens element with refractive power, the fourth lens element with refractive power, the fifth lens element with refractive power; the sixth lens element made of plastic, the sixth lens with refractive power having a concave image-side surface with both being aspheric, and the image-side surface having at least one inflection point. By such arrangements, the optical imaging system for pickup satisfies conditions related to shorten the total length and to reduce the sensitivity for using in compact cameras and mobile phones with camera functionalities.

DC input energy is converted into DC output voltage by the use of a switched current mode high-voltage power supply. Pulses of input current are switched through a conversion transformer and the energy content of each pulse is converted into the DC output voltage. The time widths of the input current pulses are regulated relative to the DC input and output voltages, the magnitude of the current within each input current pulse, and in relation to maintaining a plurality of different selected operational conditions. The rate at which the input current pulses are converted is changed relative to the level of the DC output voltage.

A phosphor with high efficiency having an excitation band corresponding to light of the ultraviolet-visible (300 to 550 nm) wavelength region emitted from a light emitting portion which emits blue or ultraviolet light is provided. A nitride of Ca, a nitride of Al, a nitride QfSi, and an oxide of Eu are prepared, and respective raw materials are weighed so that a mol ratio of respective elements becomes Ca:Al:Si:Eu=0.985:3:1:0.015, mixed under a nitrogen atmosphere, and thereafter fired at 1500° C. in a nitrogen atmosphere to thereby produce a phosphor having a composition formula Ca_0.985SiAlN₃:Eu0.015.

An imagery optical system, sequentially from an object side to an image side on an optical axis comprising: the first lens element with positive refractive power, the second lens element with positive refractive power, the third lens element, the fourth lens element, and the fifth lens element having at least one inflection point. Each of the five lens elements may be made of plastic and comes with bi-aspheric surfaces. The imagery optical system satisfies conditions related to shorten the total length and to reduce the sensitivity for use in compact cameras and mobile phones with a camera function.

A database controller controls a database for storing graph data encoded as triples, each triple having a subject, a predicate, and an object, and each stored within a data item among a set of data items ordered according to the triple stored within. Each data item is stored on a storage node from among a plurality of storage nodes distributed in a network. The database controller includes a storage request receiver configured to receive a request to store a triple in the database, and a data item generation module configured to generate two or more data items each having a different version of the triple.

A telemetric system (10, 300) is disclosed. The telemetric system (10, 300) includes a telemetric implant (400, 500), a reader unit (20) adapted to read signals from the telemetric implant (400, 500), and an antenna (12, 212, 312) adapted for connection to the reader unit (20, 320) and to receive signals from the telemetric implant (400, 500). The antenna (12, 212, 312) has a first coil (14, 214, 314), a second coil (16, 216, 316), and a connector (18, 318). The first coil (14, 214, 314) is electrically connected to the second coil (16, 216, 316), and the connector (18, 318) allows for movement of the first and second coils (14, 214, 314, 16, 216, 316) relative to each other. The antenna (12, 212, 312) may be used to send radio-frequency power to the telemetric implant (400, 500) and receives data from the telemetric implant (400, 500).

An optical lens assembly for imaging pickup, sequentially arranged from an object side to an image side, comprising: a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has negative refractive power. The third lens element with refractive power has bi-aspheric surfaces. The fourth lens element with positive refractive power has a concave object-side surface and a convex image-side surface and both being aspheric. The fifth lens element with negative refractive power has a concave image-side surface, bi-aspheric surfaces and at least one inflection point. Therefore, the optical lens assembly for imaging pickup satisfies conditions related to shorten the total length and to reduce the sensitivity for use in compact cameras and mobile phones with camera functionalities.

Example embodiments include a method of reducing noise include forming a main signal and one or more reference signals at a beam-former based on at least two received audio signals, detecting voice activity at a voice activity detector, where the voice activity detector receives the main and reference signals and outputting a desired voice activity signal, adaptively cancelling noise at an adaptive noise canceller, where the adaptive noise canceller receives the main, reference, and desired voice activity signals and outputs an adaptive noise cancellation signal, and reducing noise at a noise reducer receiving the desired voice activity and adaptive noise cancellation signals and outputting a desired speech signal.

A method for controlling the temperature of a vehicle with at least a partial electric drive while the vehicle is connected to a charging station includes setting up a data link for bidirectional communication between the vehicle and charging station. Vehicle-side data is acquired with vehicle-side means for acquiring data, and charging-station-side data is acquired with charging-station-side means for acquiring data. Optimum temperature control parameters of the battery and passenger cell are determined using a logic by processing the acquired vehicle-side and charging-station-side data. The temperature control of the battery and of the passenger compartment of the vehicle is carried out with temperature control means. A motor vehicle and a charging station carry out the method.

The invention is directed at a power assist module for a bicycle comprising a power source; a motor, connected to the power source; an output drive gear, controlled by motor through gear reduction; a multi-geared hub, mounted on a wheel of the bicycle; and a motor drive system connecting the output drive gear with the multi-geared hub; wherein rotation of the output drive gear by the motor, causes the drive chain to rotate the hub, thereby rotating the wheel of the bicycle.

The invention is based on a hand-guided sander having a housing (12) whose size is essentially limited to that of a base (38) of a sanding plate (30).

According to the invention, the housing (12) is equipped to accommodate a rechargeable battery unit (28). The invention also relates to a sander cradle and a sander housing.

An optical imaging lens assembly comprising five non-cemented lens elements with refractive power, sequentially arranged from an object side to an image side, comprising: the first lens element with positive refractive power, the second lens element with negative refractive power, the third lens element with refractive power having a concave object-side surface and at least one aspheric surface, the fourth lens element with positive refractive power having two aspheric surfaces, and the fifth lens element with negative refractive power having a concave object-side surface and a convex image-side surface with both being aspheric. Wherein an image sensor disposed on an image plane and a stop are also provided. By such arrangements, the image pickup optical system satisfies conditions related to shorten the total length and to reduce the sensitivity for use in compact cameras and mobile phones with camera functionalities.

A wave power capture system, comprises a fluid transfer conduit for connection to a wave energy conversion device such that, in operation, the wave energy conversion device pressurizes fluid in the fluid transfer conduit in response to wave motion; a turbine apparatus arranged to receive fluid from the fluid transfer conduit; at least one sensor for sensing pressure and/or flow rate of the fluid; a variable opening valve for controlling the rate of flow of fluid from the fluid transfer conduit to the turbine apparatus; a controller for controlling operation of the variable opening valve in dependence upon the pressure and/or flow rate of the fluid sensed by the sensor and/or the speed of rotation of the turbine apparatus; and an electrical power generation system for obtaining electrical power from operation of the turbine apparatus.

A radiation thermometer utilizing an off-focus telecentric lens arrangement in chemical vapor deposition reactors. An object assembly of one or more optical components is positioned at a distance equal to its focal length from an aperture stop. The aperture stop is dimensioned so that the chief rays are substantially parallel with the optical axis of the object assembly, and so that the rays that pass through the aperture stop define a narrow solid angle about the chief rays. The off-focus telecentric arrangement thus configured is focused at infinity, but is utilized to capture radiation from a relatively proximate target (e.g., within a couple meters) that is out of focus. The capture of collimated radiation from the target diminishes the contribution of stray radiation, particularly with targets having a highly specular surface.

A wireless controller for a video game system is disclosed. The wireless controller for a video game player comprises a wireless receiver and a sound transformer that are connected with a first memory chip receiver of the video game player. The built-in microphone and amplifier of the wireless receiver allows the user to use the wireless controller to transmit signals and communicate with the wireless receiver wirelessly. Thus without using headset with microphone, the user can control the wireless controller and also communicate with the other online player within an effective transmission range.

An improved servo system for galvanometers, scanners and similar devices which uses digital processing to increase the dynamic range and provide greater effective resolution. The system provides digital control of a reference point that directly influences the excitation, which in turn directly influences the gain of the circuit. A high and low resolution switching path is provided to optimize dynamic range. Wide angle torque compensation improves uniformity of response at large angular deflections from zero. Improved thermal protection allows safe operation near system thermal limits. A graphical user interface allows adjustments and changes response on the fly for tuning due to input conditions or user control.

An antenna structure includes a radiation module and a metal board. The radiation module has a first coil unit and a second coil unit. The first coil unit is coupled to the second coil unit. The first coil unit and the second coil unit have opposite direction of current. The metal board is disposed at one side of the radiation module. The metal board has an enclosed slot which has a first slot portion and a second slot portion.