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US 8,941,625 B2Granted
Control using movements
AssigneeElliptic Laboratories AS
InventorTobias Dahl
Life of this patent
Estimating the term…
Abstract
A movement of an object is recognised as a predetermined movement, by transmitting signals between transmitter-receiver pairs, which are reflected from the object. A first event is recorded for one of the transmitter-receiver pairs if a reflected signal meets a predetermined proximity criterion, and a second event is recorded for a second transmitter-receiver pair if after the first event, a subsequent reflected signal meets a predetermined proximity criterion. The first and second events are used to identify the movement.
Claims21
A method of recognizing a movement of an object as one of a set of one or more possible predetermined movements, the method comprising:
- continuously or repeatedly transmitting acoustic signals between at least two transmitter-receiver pairs, said signals being reflected from an object to produce reflected signals;
- analyzing signals received at the receiver of a first one of said transmitter-receiver pairs to determine whether one or more reflected signals, received at the receiver, meets a first predetermined proximity criterion, the first predetermined proximity criterion comprising the reflected signal or signals having a time of flight, or average time of flight, from the transmitter to the receiver of the transmitter-receiver pair, via the object, that is within a first predetermined maximum time of flight, and recording a first event for the first one of said transmitter-receiver pairs when one or more reflected signal meets the first predetermined proximity criterion;
- analyzing signals received at the receiver of a second one of said transmitter-receiver pairs to determine whether one or more reflected signals, received at the receiver, meets a second predetermined proximity criterion, the second predetermined proximity criterion comprising the reflected signal or signals having a time of flight, or average time of flight, from the transmitter to the receiver of the transmitter-receiver pair, via the object, that is within a second predetermined maximum time of flight, and recording a second event for the second one of said transmitter-receiver pairs when, after the first event, one or more subsequent reflected signals meets the second predetermined proximity criterion;
- and
- using said first and second events to identify a movement of the object as one of a set of one or more possible predetermined movements.
2 more elements
An apparatus for recognizing a movement of an object as one of a set of one or more possible predetermined movements, comprising:
- at least two transmitter-receiver pairs;
- electronic controller arranged to:
- continuously or repeatedly transmit acoustic signals between the transmitter-receiver pairs, the signals being reflected from an object to produce reflected signals;
- analyze signals received at the receiver of a first one of said transmitter-receiver pairs to determine whether one or more reflected signals, received at the receiver, meets a first predetermined proximity criterion, the first predetermined proximity criterion comprising the reflected signal or signals having a time of flight, or average time of flight, from the transmitter to the receiver of the transmitter-receiver pair, via the object, that is within a first predetermined maximum time of flight, and to record a first event for the first one of said transmitter-receiver pairs when one or more reflected signal meets the first predetermined proximity criterion;
- and
- analyze signals received at the receiver of a second one of said transmitter-receiver pairs to determine whether one or more reflected signals, received at the receiver, meets a second predetermined proximity criterion, the second predetermined proximity criterion comprising the reflected signal or signals having a time of flight, or average time of flight, from the transmitter to the receiver of the transmitter-receiver pair, via the object, that is within a second predetermined maximum time of flight, and to record a second event for the second one of said transmitter-receiver pairs when, after the first event, one or more subsequent reflected signals meets the second predetermined proximity criterion;
- and
- an electronic processor arranged to use the first and second events to identify a movement of the object as one of a set of one or more possible predetermined movements.
5 more elements
A non-transitory computer software product configured, when executed on a computer, to recognize a movement of an object as one of a set of one or more possible predetermined movements, the software performing the method comprising:
- receiving data resulting from continuously or repeatedly transmitting acoustic signals between at least two transmitter-receiver pairs, the signals being reflected from an object to produce reflected signals;
- analyzing signals received at the receiver of a first one of said transmitter-receiver pairs to determine whether one or more reflected signals, received at the receiver, meets a first predetermined proximity criterion, the first predetetermined proximity criterion comprising the reflected signal or signals having a time of flight, or average time of flight, from the transmitter to the receiver of the transmitter-receiver pair, via the object, that is within a first predetermined maximum time of flight, and recording a first event for the first one of said transmitter- receiver pairs if the data represents one or more reflected signals meeting the first predetermined proximity criterion;
- analyzing signals received at the receiver of a second one of said transmitter-receiver pairs to determine whether one or more reflected signals, received at the receiver, meets a second predetermined proximity criterion, the second predetermined proximity criterion comprising the reflected signal or signals having a time of flight, or average time of flight, from the transmitter to the receiver of the transmitter-receiver pair, via the object, that is within a second predetermined maximum time of flight, and recording a second event for the second one of said transmitter-receiver pairs if, after the first event, the data represents a subsequent one or more reflected signals meeting the second predetermined proximity criterion;
- and
- using the first and second events to identify a movement of the object as one of a set of one or more possible predetermined movements.
2 more elements
Dependencies are inferred from the claim text.