Lsi Corporation

Other

Lsi Logic Corporation

Hsi-Chen Wang

Shi-Chang Wang

Nien-Tsu Wang

Ling Chen

Dave Xiao Dong Yang

Chih-Ching Steve Chou

A hybrid architecture of a television (TV) receiving system is disclosed. The architecture includes two portions, a hardware portion and a software portion. The hardware portion includes a minimum amount of hardware to achieve operations of receiving a RF signal, producing an IF signal and outputting data representing the IP signal. The software portion, taking advantage of available computing power (e.g., high-speed microprocessor and a lot of memory) in a computing device and executed therein, includes one or more demodulators, all implemented in software. Each of the demodulators is implemented in accordance with one type of TV standard. Thus depending on the received data, a corresponding demodulator is activated to demodulate the received data and subsequently produces audio and video data. One of the advantages, benefits and objects in the present invention is to have a band of software-based demodulators, any of which may be updated or expanded whenever there is a new TV standard or modification to an existing standard.

Hybrid architecture of TV receiving devices

A method for de-interlacing is disclosed. The method generally includes the steps of (A) determining a plurality of target mode values for a target pixel being synthesized to convert a current field into a current frame, wherein at least two of the target mode values are based on both (i) a plurality of original pixels and (ii) a plurality of synthesized pixels in a plurality of synthesized frames, (B) generating a plurality of candidate values for the target pixel using a plurality of interpolation techniques that includes a motion estimation interpolation utilizing a particular one of the synthesized frames and (C) selecting a particular one of the candidate values for the target pixel in response to the target mode values.

Accurate motion detection for the combination of motion adaptive and motion compensation de-interlacing applications

A method for rendering an object on a display screen, comprising the steps of (A) buffering a plurality of pixels in a plurality of line buffers, (B) determining a boundary of the object based on the buffered pixels, (C) determining a direction of the boundary, (D) testing if a pixel in the line buffers is in motion and applying one of a plurality of filter coefficients if the pixel is in motion, where the plurality of filter coefficients define a modified median filter having a predetermined threshold and (E) interpolating a new pixel in the direction of the boundary.

Systems and methods for deinterlacing video signals

Techniques of designing a digital phase lock loop are disclosed. In one embodiment, the digital phase lock loop comprises a synchronization unit producing a producing a plurality of clock signals in accordance with a seed clock signal having a frequency, each of the clock signals having a modified frequency over the frequency of the seed clock signal and a phase shift from each other; a phase-frequency detection unit receiving an input signal and a feedback signal, and sampling the input signal and the feedback signal in accordance with the clock signals to determine differences in phase and frequency between the input signal and the feedback signal; a digital control oscillator receiving the clock signals and producing an output signal in reference to the differences from phase-frequency detection unit, and subsequently, a digitally controlled clock signal is produced.

Growing community of inventors

San Jose, CA, United States of America

Hsi-Chen Wang