Device and method for the detection and demodulation of an...

Details Device and method for the detection and demodulation of an... Device and method for the detection and demodulation of an...

G - Physics

01

S

G01S 17/36 (2006.01) G01S 17/89 (2006.01) G01S 7/493 (2006.01) H04N 5/335 (2006.01) H04N 3/15 (2006.01)

Patent

CA 2197079

An imaging sensor (13) has a multiplicity of sensor elements (16). Each sensor element (16) has a light-sensitive zone (17) in which radiation is detected as a function of position. A multiplicity of storage cells (21) successively store charges detected in the light-sensitive zone (17) of each sensor element (16) in synchronism with a modulation signal which is produced by the radiation source. The imaging sensor (13) simultaneously detects and demodulates intensity-modulated radiation as a function of position. The invention makes it possible to determine a range of parameters for the object (11) being examined, thus ensuring that the object is accurately recorded for rangefinding purposes

L'invention concerne un capteur d'images (13) constitué d'une multiplicité d'éléments capteurs (16). Chaque élément capteur (16) comporte une zone photosensible (17) dans laquelle le rayonnement est détecté en fonction de sa position. Une multiplicité de cellules de mémoire (21) sont associées à chaque élément capteur (16), dans lesquelles sont successivement mémorisées les charges détectées dans la zone photosensible (17) de chaque élément capteur (16). Le capteur d'images (13) peut ainsi simultanément détecter et démoduler le rayonnement modulé en intensité, en fonction de sa position. L'invention permet de déterminer une série de paramètres relatifs à l'objet mesuré, garantissant ainsi une détection précise de l'objet à mesurer pour des applications de télémétrie.

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