Resumen
System intended to determine the orientation in the space of a body integral with a photoreceiver, comprised of three photosensors (3) which receive light from a photoemitter (1), which provides through an electronic calculation subsystem to determine the direction (5) of the incident radiation (2). The integration of the photosensors into a CMOS circuit is one form of execution of a photosensor surface having a vectorial character and capable of determining the intensity and direction of the radiation arriving from the photoemitter. Its object is to access information and control systems by using the movement of the user's head. The vectorial photosensor senses the movements of the body and uses said information to establish the position of the pointer and execute actions in information and control systems. Other alternatives of the system make it possible to determine the position and orientation, in elevation and azimuth, of a body in the space. <IMAGE>
Reivindicaciones
1. Vectorial photosensor characterised in that it includes one or more photoemitters means, located in known positions of the space with respect to a reference system, of one or more photoreceiver devices constituted each one by three or more photosensor means whose optical axes -corresponding each one to the greater sensibility direction of its respective receipt diagram- are not be parallel, that define a second reference system fixed to the photoreceiver, illuminated by each photoemitter means and that transforms the optical signals received in electrical signals, an electronic calculation means for the processing of these electrical signals that permits the determination -respect the second reference system defined by the optical axes of the photosensors means of the photoreceiver system- of the intensity and the radiation arrival direction to each photoreceiver system originated from each photoemitter mean. 2. Vectorial photosensor according to the first claim, characterised in that the photoreceiver device is constituted by a sufficient number of photosensors means in view to constitute the faces of a polyhedron -whose optical axes corresponding to its sensitive diagram define the semiaxes of a reference system- whose electrical signals, treated by the calculation electronic means, permit the determination whatever arrival directions of the radiation originated by a photoemitter means, as well as its incident intensity. 3. Vectorial photosensor according to the first claim characterised in that the photoreceiver devices has a means of useful optical radiation filter for the rejection of the optical ambient radiation, extern to the system. 4. Vectorial photosensor according to the first claim characterised by having a means for the amplification and filtering of the electrical signals originated from each photoreceiver device. 5. Vectorial photosensor according to the first claim characterised in that it includes a means to modulate in amplitude radiation optical signals emitted by the photoemitter means or means, and a means to demodulate the received signals from each photoreceiver device. 6. Vectorial photosensor according to the first claim characterised in that it includes an electronic calculation means that determines the direction of the lines that go through each photoreceiver system and by each photoemitter means using the received signals of the photoreceiver devices originated by the photoemitters means. 7. Vectorial photosensor according to the first claim characterised in that it includes a means to transform the direction information of arrival of the optical signals into electrical signals similar to the generated by a conventional computer mouse, in that way the components of the arrival direction of the radiation respect the photoreceiver device come from the photoemitter means, are transformed into electrical signals that point the cursor of the personal computer or information system. 8. Vectorial photosensor according to the first and seventh claims characterised in that it includes an electronic means for the forms recognition from the information that correspond to the movements of the photoreceiver system respect to the photoemitter means of reference, permitting to establish a gestures language -through movements of the user's head- that permits the communication of the user with information systems and environment control. 9. Vectorial photosensor according to the first and seventh claims characterised in that it includes a means that transforms the failed orders, pointing to icons or hypertext symbols, into auto-center signals that points to the nearest icon, playing a phonetic message or in Braille code through the adequate interface. 10. Vectorial photosensor according to the first, second and sixth claims characterised in that it includes a means constituted by two or more photoreceiver devices placed in known points of the reference space, constituting a fixed net of photoreceivers that permits through an calculation electronic means to obtain the coordinates respect to the reference space of a emitter means fixed to the mobile object that simultaneously illuminate at least two photoreceivers of the net. 11. Vectorial photosensor according to the first, second and sixth claims characterised in that it includes a means constituted by the union of a photoreceiver system and a photoemitter means that forms the 3D device of the vectorial photosensor, in that way by that having two 3D devices fixed to the reference space and a 3D device fixed to the mobile object -or well three photoemitters fixed to the reference space and a photoreceiver system fixed to the mobile object- it permits the determination of the coordinates and the angles in elevation and azimuth of the mobile object respect the reference space through a computer electronic means that process the electrical signals originated by the 3D systems or by the photoreceiver. 12. Vectorial photosensor according to the first, second and fifth claims characterised in that it includes a photoreceiver device and a photoemitter means that permit to determine the direction and distance of an object in the space that is being illuminated by the emitter and whose diffused or reflected radiation by the object arrives to the receiver. 13. Vectorial photosensor according to the first claim, characterised by be materialised in the form of microsystem through photosensitive surfaces, integrated on a semiconductor substrate, placed forming micropyramids -or photosensitive surfaces- associated with an electronic calculation means for the treatment of the signals, integrated in the microsystem, constituting a device with vectorial photosensibility, that is to say that determines the intensity and the direction of the incident radiation.
