| Elliptic Laboratories AS Patent applications |
| Patent application number | Title | Published |
|---|
| 20120099403 | CHANNEL IMPULSE RESPONSE ESTIMATION - A human-machine interface system adapted to track movement of an object in air is disclosed. In one aspect, the human-machine interface includes an acoustic transmitter, an acoustic receiver, and logic configured to apply a calculated inverse matrix of an impulse signal transmitted by the acoustic transmitter to a signal received by the acoustic receiver, wherein movement of the object is used to control the machine. | 04-26-2012 |
| 20110254762 | MACHINE INTERFACES - Apparatus for determining the movement of an object comprises a plurality of ultrasonic transducers | 10-20-2011 |
| 20110148798 | OBJECT LOCATION - An apparatus determines the position of a target part of a user's hand within a predetermined zone. It has a plurality of transducers for transmitting and/or receiving locating signals. The transducers are arranged such that, for any location of the target hand part within the predetermined zone there are at least two pairings of transmitting transducers and receiving transducers for which the total time-of-flight of said timing signals from the transmitter of the pairing to the receiver of the pairing via the target part of the user's hand is less than equivalent total times-of-flight to and from a set of points comprising all points in the predetermined zone which are beyond a minimum spacing from the target hand part but at least as far away from the nearest point of the apparatus as the location of the target hand part is. In some embodiments a selection is made between possible channels to determine which can be used for tracking without suffering from finger/hand confusion. | 06-23-2011 |
| 20110103448 | MULTI-RANGE OBJECT LOCATION ESTIMATION - Estimating the impulse response of a channel by providing an initial signal ( | 05-05-2011 |
| 20110096954 | OBJECT AND MOVEMENT DETECTION - Motions, positions or configurations off, for example a human hand can be recognised by transmitting a plurality of transmit signals in respective time frames; receiving a plurality of receive signals; determining a plurality of channel impulse responses using the transmit and receive signals; defining a matrix of impulse responses, with impulse responses for adjacent time frames adjacent each other; and analysing the matrix for patterns ( | 04-28-2011 |
| 20100296368 | CHANNEL IMPULSE RESPONSE ESTIMATION - A method of estimating the impulse response of a channel is disclosed. The method includes transmitting an impulse signal to the channel, detecting a received signal from the channel at a receiver, and calculating an estimate of the impulse response of the channel by applying a calculated inverse matrix of the impulse signal to the received signal. | 11-25-2010 |
