The device has infrared radiator groups attached with a first group of receivers (2) in a direction. An infrared ray transmitter group (1, 3) is attached with a second group of receivers (4) in another direction. Each transmitter is attached with a subset of contiguous or non receptors for sensing the rays emitted by an emitter. Scan cycles are initiated by fixed periods of time, where the scan cycles are a complete scan of constant duration according to the transmitters. Detection of touches (7, 8) is reflected by analysis of areas by a processing unit. An independent claim is also included for a multi-touch tactile control method.
Infrared detection device and method with predictible multi-touch tactile control