Abstract: An integrated VMM (vector-matrix multiplier) module, including an electro-optical VMM component that multiplies an input vector by a matrix to produce an output vector; and an electronic VPU (vector processing unit) that processes at least one of the input and output vectors. Various error reducing mechanisms are also discussed.

Abstract: An integrated VMM (vector-matrix multiplier) module, including an electro-optical VMM component that multiplies an input vector by a matrix to produce an output vector; and an electronic VPU (vector processing unit) that processes at least one of the input and output vectors. Various error reducing mechanisms are also discussed.

Abstract: A digital to analog converter array including a plurality of pixels arranged in an array and independently addressable to selectively modulate light; a digital counter which generates a sequence of numbers in digital form; an analog signal source which generates an analog signal that corresponds the sequence generated by the digital counter; and a plurality of array elements which control the pixels, each element including a digital memory register holding at least one input number; a comparator which generates an enabling signal responsive to a comparison between the number in the sequence and the input number; and a sample and hold circuit which samples the value of the analog signal, responsive to said enabling signal, and sets an output voltage controlling a pixel to said value, wherein the array is configured so that the comparators in all the array elements compare the number in the sequence to the input numbers held in said array elements substantially simultaneously.

Abstract: A digital to analog converter array including a plurality of pixels arranged in an array and independently addressable to selectively modulate light; a digital counter which generates a sequence of numbers in digital form; an analog signal source which generates an analog signal that corresponds the sequence generated by the digital counter; and a plurality of array elements which control the pixels, each element including a digital memory register holding at least one input number; a comparator which generates an enabling signal responsive to a comparison between the number in the sequence and the input number; and a sample and hold circuit which samples the value of the analog signal, responsive to said enabling signal, and sets an output voltage controlling a pixel to said value, wherein the array is configured so that the comparators in all the array elements compare the number in the sequence to the input numbers held in said array elements substantially simultaneously.

Abstract: An electronic parking-aid device for guiding a motorist when parking a vehicle in a parking bay. The device includes a transmitter and receiver which respectively transmits a signal towards the front of an approaching vehicle and receives the signal reflected thereby. A computing apparatus coupled to the transmitter and receiver for computing the distance from the front of the vehicle to the device and a logic apparatus coupled to the computing apparatus compares the computed distance with a predetermined threshold so as to generate an output signal if the computed distance is less than the threshold. The logic apparatus compares the computed distance to two different thresholds so as to generate corresponding output signals if the computed distance is less than the lower threshold, or lies between the two thresholds, or is greater than the larger threshold.