Patent application number | Description | Published |
20110019781 | DEVICE AND METHOD FOR CALCULATING BACKWARD STATE METRICS OF A TRELLIS - A method for calculating backward state metrics of a trellis, the method includes: performing a radix-K calculation of backward state matrices of multiple states of at least one time instance of a trellis; and performing a radix-J calculation of backward state matrices of multiple states of at least one other time instance of the trellis; wherein K differs from J. | 01-27-2011 |
20130275725 | INTEGRATED CIRCUIT DEVICE AND METHOD FOR PERFORMING CONDITIONAL NEGATION OF DATA - An integrated circuit device comprising at least one digital signal processor (DSP) module, the at least one DSP module comprising a first data register and at least one further data register and at least one data execution unit (DEU) module arranged to execute operations on target data stored within the first data register and the at least one further data register. The at least one DEU module is arranged, upon receipt of a conditional negation instruction, to retrieve at least one conditional bit value from the first data register, and conditionally perform negation of target data within the at least one further data register according to the at least one retrieved conditional bit value. | 10-17-2013 |
20130297578 | INTEGRATED CIRCUIT DEVICE AND METHOD FOR DETERMINING AN INDEX OF AN EXTREME VALUE WITHIN AN ARRAY OF VALUES - An integrated circuit device comprises at least one digital signal processor, DSP, module, the at least one DSP module comprising a plurality of data registers and at least one data execution unit, DEU, module arranged to execute operations on data stored within the data registers. The at least one DEU module is arranged to, in response to receiving an extreme value index instruction, compare a previous extreme value located within a first data register set of the DSP module with at least one input vector data value located within a second data register set of the DSP module, and determine an extreme value thereof. The at least one DEU module is further arranged to, if the determined extreme value comprises an input vector data value located within the second data register set, store the determined extreme value in the first data register set, determine an index value for the determined extreme value, and store the determined index value in the first data register set. | 11-07-2013 |
20130304786 | DEVICE AND METHOD FOR COMPUTING A FUNCTION VALUE OF A FUNCTION - A device is provided for computing a function value of a function F. The device includes a memory, a truncator unit, a selector unit, and an evaluator unit. The memory contains a look-up table comprising a set of entries, each entry having associated with it a domain and an approximation function for approximating F on the associated domain. The truncator unit is arranged to truncate or round a first value X1 to generate a second value X2. The selector unit is arranged to select an entry of the lookup-table according to the second value X2, thus selecting the approximation function that is associated with the selected entry. The evaluator unit is arranged to determine the function value of the selected approximation function at the first value X1. | 11-14-2013 |
20160132332 | SIGNAL PROCESSING DEVICE AND METHOD OF PERFORMING A BIT-EXPAND OPERATION - A signal processing device comprising at least one control unit arranged to receive at least one bit-expand instruction, decode the received at least one bit-expand instruction, and output at least one control signal in accordance with the received at least one bit-expand instruction. The signal processing device further includes at least one execution unit component arranged to receive at least one source register value comprising at least one data bit to be expanded, extract at least one data bit from the at least one source register value located at an offset position according to the at least one control signal, expand the at least one extracted data bit into at least one multi-bit data type, and output the at least one multi-bit data type to at least one destination register. | 05-12-2016 |
Patent application number | Description | Published |
20110058350 | LIGHT SOURCE MODULE - A light source module is disclosed. The light source module includes an emitter having a light emitting surface, a solid integrating optic aligned to accept light emitted from the emitter at an entrance face and deliver light to an exit face, and a lens aligned to receive light from the exit face. The lens has a substantially hemispherical portion having a radius of curvature and the exit face of the solid integrating optic has an exit face diagonal. The ratio of the radius of curvature to the exit face diagonal is greater than 0.7. The solid integrating optic and the lens each have an index of refraction, and the ratio of the lens index of refraction to the solid integrating optic index of refraction is greater than unity. | 03-10-2011 |
20130069549 | LED Light For Examinations And Procedures - A light is provided having a base unit, an arm extending from the base unit, and a lamp head coupled to the arm. The lamp head includes an LED configured to provide light based on an input drive current, an optical mixing element configured to collect the light produced by the LED and a zoom lens configured to adjust an output size of a spot generated by the light collected in the mixing element. A controller receives DC power from the base unit through the arm. The controller is configured to set the input drive current for the LED to control an output light density of the spot in response to an operator selected input and configured to adjust the output light density of the spot in response to a change in the size of the spot. | 03-21-2013 |
20150234149 | ZOOM LENS OPTICAL SYSTEM - A zoom lens includes an optical path extending between object and image ends, two or more zoom lens groups, an intermediate real image plane in optical path, and all zoom lens groups on an image side or an object side of intermediate real image plane. Zoom lens may include at least one optical path fold in optical path. Field optics in the vicinity of and associated with intermediate real image plane may be in optical path. Zoom lens may include a fixed rear optical group nearest to image end in optical path and a fixed aperture stop in fixed rear optical group wherein aperture stop remains stationary during zooming. Zoom lens may have a magnification with an absolute value greater than 0.4 between intermediate and final real image planes located at image end. Zoom lens may be entirely within a housing of a digital camera or cellphone during its operation. | 08-20-2015 |