Abstract:
A method of transforming a n-bit data packet to a m-bit data packet with a lookup table. The lookup table includes at least one entry data packet and at least one respective delta value associated with each entry data packet. The method includes the acts of receiving an input data packet having n-bits, indexing the lookup table with at least a portion of the input data packet to obtain one of the at least one entry data packet, and decompressing the obtained entry data packet with the at least one respective delta value associated with the obtained entry data packet, thereby resulting in an output data packet having m-bits. The decompressing act includes using a portion of the input data packet to determine the number of delta values called for decompressing the obtained entry data packet. The method can be used in, for example, an image processor.
Abstract:
Apparatus for detecting vibration of an object adapted to rotate includes one or more vibration processors selected from: a direction-change processor adapted to detect changes in a direction of rotation of the object, a direction-agreement processor adapted to identify a direction of rotation of the object in at least two channels and identify an agreement or disagreement in direction of rotation identified by the at least two channels, a phase-overlap processor adapted to identify overlapping signal regions in signals associated with the rotation of the object, and a running mode processor adapted to identify an unresponsive output signal from at least one of the at least two channels. A method for detecting the vibration of the object includes generating at least one of a direction-change output signal with the direction-change processor, a direction-agreement output signal with the direction-agreement processor, a phase-overlap output signal with the phase-overlap processor, and a running-mode-vibration output signal with the running-mode processor, each indicative of the vibration the object.
Abstract:
Defects are automatically detected in an image scanning device by performing a defect calibration scan of an image scanning area and detecting at least one defect in at least one section of the image scanning area. A tag is generated for the section of the image scanning area in which the defect is detected. The defect is compensated for in the scanned image based on information contained within the tag.
Abstract:
Variable-gain amplifiers (VGAs) and/or continuous-time filters (CTFS) are implemented with circuitry that provides improved power-supply rejection. The power-supply rejection circuitry may include a current source and a diode-connected MOSFET that inhibit noise in the reference-voltage power supply from reaching the output nodes of the VGA or CTF. Although the present invention enables separate implementations of VGAs and CTFs, in one embodiment, a VGA function and a CTF function are implemented in a single set of (e.g., integrated) circuitry.
Abstract:
An AC coupling network has (a) a first pair of capacitances C1 connected between the input nodes and the output nodes and (b) a second pair of capacitances C2 cross-connected between the input nodes and the output nodes. The capacitances C1 and C2 are formed by sets of switched capacitors that can be configured to provide the network with different levels of attenuation while maintaining a constant AC coupling pole frequency. In particular, the sets of switched capacitors can be configured to ensure that C1+C2 remains constant, while C1−C2 varies. The present invention enables AC coupling to be implemented without using active devices such as operational amplifiers and/or buffers.
Abstract:
A simplified automatic car wash system is disclosed which comprises a linear trolley suspended from the upper structure of a car wash building and a cross trolley transversely mounted thereto. A spray arm is rotatably mounted to a glider plate on the cross trolley and the spray arm is used to deliver soap and water to an automobile. The spray arm is the only cleaning apparatus utilized, there being no need for rotating brushes and the like. As such, the only elements which come and in contact with the automobile during a car wash, are soap and water.