619 results about "Proximity sensing" patented technology

Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, compliant, and flexible multi-touch surface. The surface consists of compressible cushion dielectric, electrode, and circuitry layers. A simple proximity transduction circuit is placed under each electrode to maximize signal-to-noise ratio and to reduce wiring complexity. Such distributed transduction circuitry is economical for large surfaces when implemented with thin-film transistor techniques. Scanning and signal offset removal on an electrode array produces low-noise proximity images. Segmentation processing of each proximity image constructs a group of electrodes corresponding to each distinguishable contact and extracts shape, position and surface proximity features for each group. Groups in successive images which correspond to the same hand contact are linked by a persistent path tracker which also detects individual contact touchdown and liftoff. Combinatorial optimization modules associate each contact's path with a particular fingertip, thumb, or palm of either hand on the basis of biomechanical constraints and contact features. Classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device.

An external pulse generator comprising a primary coil and adapted to inductively couple to an implanted receiving means, is designed to deliver neuromodulation therapy for disorders comprising obesity, eating disorders, anxiety and the like. The external pulse generator contains limited number of predetermined programs. These programs provide the patient or caretaker a means to adjust the therapy within confined limits, or turn the device off. The predetermined programs contain unique combination of pulse amplitude, pulse width, frequency of stimulation, and on-off time. In another mode of operation, the parameters can be individually adjusted and the stimulation therapy program can be “customized” for the patient, and stored in the memory. The programs are capable of being modified with a programming station connected to the pulse generator with a RS232-C serial connection. Additionally, the external pulse generator has two-way wireless capabilities, whereby enabling the physicians to remotely control the therapy programs of their patients using wireless internet. Moreover, the external pulse generator has proximity sensing and feedback regulation component to provide a constant therapy in accordance with the predetermined programs.

Apparatus and a method for causing a printed display (poster, placard or promotional flier) to become interactive when a person points to part of the display. Behind the display a customized layout of capacitive proximity sensors printed with conductive inks on to a low-cost disposable, replaceable substrate (paper, plastic, cardboard) in alignment with visually significant features of the display is connected to proximity-sensing circuitry. Audio-visual or multimedia responses using pre-recorded or synthesized information are reproduced in event of a selection.

A method of generating haptic effects on a device includes detecting the presence of an object near an input area of the device and generating a haptic effect on the device in response to the presence detection.

A method of generating haptic effects on a device includes detecting the presence of an object near an input area of the device and generating a haptic effect on the device in response to the presence detection.

A portable electronic device that automatically detects its mode of use and alters a characteristic of its user interface to match the mode of use. A mobile telephone is described as an example of a portable electronic device. The telephone is equipped with a proximity sensor that may indicate whether the telephone is held close or far from the user's face. Based on the proximity to the user's face, gains in the audio interface are adjusted. The gain is reduced when the device is held close to a user's face and increased when the device is moved away from the user's face. This approach is well suited for use in connection with portable devices that use voice command interfaces.

This disclosure provides systems, methods and apparatus for tuning a transmit coil for operation in a plurality of frequency bands. In one aspect, a method of wireless power transmission is provided. The method includes exciting a first part of a wireless power transmission system, via a wireless power transmitter. The method further includes detecting, in the presence of a non-charging object, a first change in a first parameter. The first parameter is indicative of a coupling between the non-charging object and the first part. The method further includes varying a characteristic of the wireless power transmission based on said first change.