101results about How to "Efficient power consumption" patented technology

An external transmitter circuit drives an implantable neural stimulator having an implanted coil from a primary coil driven by a power amplifier. For efficient power consumption, the transmitter output circuit (which includes the primary coil driven by the power amplifier inductively coupled with the implanted coil) operates as a tuned resonant circuit. When operating as a tuned resonant circuit, it is difficult to modulate the carrier signal with data having sharp rise and fall times without using a high power modulation amplifier. Sharp rise and fall times are needed in order to ensure reliable data transmission. To overcome this difficulty, the present invention includes an output switch that selectively inserts a resistor in the transmitter output coil circuit in order to de-tune the resonant circuit only during those times when data modulation is needed. Such de-tuning allows sharp rise and fall times in the data modulation without the need for using a high power modulation amplifier. Because data modulation is typically needed for only a small percent of the time that a carrier signal is present, it is thus possible using the present invention to achieve reliable data modulation, transmission and reception without having to use a high power modulation amplifier in the transmitter.

A compact game controller incorporates an efficient and compact force feedback mechanism. Forces are generated at one of the controls of the controller in reaction to an action in a video game. The type of controller that can be held with two hands is limited in terms of size and internal space and in wireless versions is limited in terms of battery power. Efficient power consumption in the controller enables considerable usage time between battery replacement or recharging in wireless versions. The force feedback mechanism incorporates a double reduction gear system with a unique geometry which enables usage of a compact and energy efficient motor. The efficient force feedback mechanism and assembly can therefore be packaged within a compact ergonomic controller.

A method and system are disclosed that can be applied to achieve high-throughput in a WLAN. Central to the present invention is the use of an SDMA compatible multi-beam antenna system by a WLAN access point. A system based on two types of antennas-dynamic beam forming and fixed beam antennas—is described. A mechanism and protocol are described that implement simultaneous transmissions with respect to an SDMA compatible access point and thereby improve spectral efficiency, and by extension achieve higher throughput. Based on the recognition that current WLAN MAC has major limitations in throughput, certain MAC extensions (that can be applied independently of SDMA) are described. Also disclosed are power-saving and power control techniques that improve battery performance and contribute to a reduction in station size, and a means of reducing channel interference. The present invention also deals with the problem of backward compatibility with conventional devices that implement the protocol that is a subset covered by the present invention.

An electrostatic fluid regulating device and methods. The device has a substrate. The device also has a first electrode coupled to the substrate. The device has a polymer based diaphragm. A second electrode is coupled to the diaphragm. A polymer based fluid chamber is coupled to the diaphragm. The device also has an inlet coupled to the polymer based fluid chamber and an outlet coupled to the polymer based fluid chamber.

A new speech processing strategy, termed Frequency Modulated Stimulation (FMS), is provided for use with a cochlear prosthetic. The FMS strategy advantageously mimics the neural firing patterns of the healthy cochlea by controlling when and where stimulation pulses are presented in the cochlea. The benefits of this approach are its simplicity and its ability to provide temporal information at relatively low power consumption. The stimulation that results has high temporal precision and a low pulse presentation rate. The power efficiency of the FMS strategy is three to six times greater than that of a CIS strategy with comparable thresholds. The FMS strategy depends on the probability that at any point along the basilar membrane the ganglion cells are most likely to respond during the upward motion of the basilar membrane, when the hair cells are pushed toward the tectorial membrane. At low frequencies, this probability accounts for phase locking of the neurons to each peak of the motion. At high frequency locations, phase locking occurs at integer multiples of the vibration cycles because the vibration of the membrane is faster than the refractory period of the neurons. The FMS strategy provided by the invention takes advantage of the natural behavior of the ganglion cells by outputting a biphasic pulse at the preset integer multiples of the vibration cycles. Integer multiples are determined by counting the positive-to-negative zero crossings, or equivalent frequency counting, at the output of the band pass filters that decompose the incoming audio signal(s).

The invention refers to a method for controlling the effector trajectory from a current state to a target state. First invariant control parameters of the trajectory are determined. The effector trajectory is then represented in a task description being void of the invariant control parameters. The effector trajectory is controlled on the basis of this task description. The invention further refers to a method for controlling the effector trajectory wherein the effector trajectory is calculated by mapping increments from a control parameter space on a configuration space. The dimensional difference between the configuration space and the control parameter space leaves redundant degrees of freedom of a Null space. The degrees of freedom of the Null space are increased using a task description being void of invariant control parameters. The invention further refers to a respective computer software program product, a manipulator, an actuated camera system, a robot comprising one or more manipulators and an automobile equipped with a driver support system.

Disclosed are a graphic processing unit, a power management device, and a power management method for the same. The power management device comprises a target frame number determining part configured to determine a target frame number which the GPU is required to process in a time period; a processed frame number determining part configured to determine a processed frame number processed by the GPU in a previous time period; and an operating frequency adjusting part configured to calculate a loss frame number based on the target frame number and the process frame number, and adjust an operating frequency of the GPU based on the loss frame number.

A system and method for driving a LED is disclosed. The system is switched in turn between a constant-current mode circuit and a constant-voltage mode circuit. Accordingly, the forward voltage of the LED could be maintained constant, and the efficiency in power consumption could be substantially increased.

A vehicle information providing device has a history information accumulation unit configured to sequentially acquire at least one of driving location information, power consumption information and charging facility information from an in-vehicle device of a vehicle having at least an electric motor as a traveling drive source and accumulate the at least one information as driving history information, an input unit configured to input at least a departure point and a destination point, a planned route acquisition unit configured to acquire a planned route from the departure point to the destination point, and a map memory configured to store a control map in which a route of section and a characteristic value are associated with each other on a basis of the driving history information accumulated in the history information accumulation unit.