Zoran Corporation

About: Zoran Corporation is a based out in . It is known for research contribution in the topics: Signal & Pixel. The organization has 241 authors who have published 205 publications receiving 4901 citations.

Method and apparatus for providing adaptive control of track servo

Abstract: The present invention is a method and system to provide adaptive control in an optical storage medium. The method comprises providing a beam of light, reflecting the beam of light off an optical disk and detecting the reflected beam. A value of the reflected beam is compared with a predetermined value, and an output signal is generated if the value of the reflected beam is greater than the predetermined value. A timing signal having a timing interval is generated and a control signal is generated if the output signal occurs over the timing interval. One of a current servo signal and a predetermined servo signal is provided in response to the control signal and a position of the light beam is controlled based on one of the current servo signal and the predetermined servo signal.

Processing an information carrying signal

Abstract: An automatic gain control (AGC) controls the signal amplitude at the input to an analog to digital converter (ADC) input by applying a gain that produces a desired overall amplitude resolution of the patterns actually presented by the signal delivered by the ADC converter. Short RLL patterns will have sufficient resolution for reliable extraction as a result of having sufficient overall amplitude, which thereby strengthens the ability of the read channel to correctly extract data. Moreover, the system determines correct AGC settings responsive to measurements of user data parameters. The system also detects and corrects for DC offsets in the signal whose gain is controlled.

Read and write sample and hold signal generation

Abstract: A system and method for generating sample control signals for a sample and hold circuit used to control access to optical media is provided. The sample control signals are generated with sufficient duration (width) to adequately sample a reflected laser power signal. The sample control signals are defined relative to a laser power command signal generated in response to an internal data stream, rather than directly in response to the internal data stream, thereby allowing for more precise control of the sample control signals. As a result, substantial portions of each pulse of the reflected laser power signal can be sampled, without sampling transition noise that exists when the reflected laser power signal changes states. Generating the sample control signals from a laser power command signal, rather than the input data signal, more accurately time shifts the sampling command to the reflected laser power.

Radio-frequency amplifier system

Abstract: A device for measuring voltage levels includes a root mean square (RMS) detector The RMS detector includes a linear multiplier, a log converter, a low-pass filter and a temperature compensator The linear multiplier multiplies a voltage of an input signal by the voltage of the input signal The low-pass filter couples to an output of the linear multiplier The log converter generates a logarithmic signal having a voltage that is logarithmically related to a voltage of an output of the low-pass filter The temperature compensator adjusts the logarithmic signal based on a temperature of the RMS detector The RMS detector is capable of determine an RMS voltage level of the input signal

Passive eyewear stereoscopic viewing system with scanning polarization

Abstract: A method of displaying images with an electronic display device having a plurality of sequentially updatable picture elements includes displaying an image with the picture elements by sequentially updating each of the plurality of picture elements, filtering light emanating from a first picture element with a first polarizing filter configured in a first polarization orientation and filtering light emanating from a second picture element with a second polarizing filter configured in a second polarization orientation that is different than the first polarization orientation. The method further includes detecting an update of a third picture element and switching the configuration of the second polarizing filter to the first polarization orientation in response to detecting the update of the third picture element.