公开(公告)号：SG144083A1

公开(公告)日：2008-07-29

申请号：SG2007186919

申请日：2007-12-13

Applicant: ST MICROELECTRONICS ASIA

Inventor： CHUA LOOKAH ,  GOARANT YAN DESPREZ-LE

Abstract: SYSTEM AND METHOD FOR FLICKER DC OFFSET DETECTION AND CORRECTION The present disclosure provides a method for detecting flicker DC voltage offset. The method includes receiving an output signal of an image sensor, the output signal comprising a reference signal and an image signal, and generating a combined signal by combining the image signal with a peak flicker DC voltage signal during a first time period. The method also includes performing an auto zero function in an auto zeroing comparator during the first time period between the reference signal and the combined signal and comparing the reference signal and the image signal with the auto zeroing comparator during a second time period subsequent to the first time period. The method further include storing a first charge corresponding to the image signal during a second time period and storing a second charge corresponding to a current peak flicker DC voltage signal. The method also includes comparing the image signal to the current peak flicker DC voltage signal, and producing the greater of the image signal and the stored peak flicker DC voltage signal as the peak flicker DC voltage signal.

公开(公告)号：SG140508A1

公开(公告)日：2008-03-28

申请号：SG2006059786

申请日：2006-08-31

Applicant: ST MICROELECTRONICS ASIA

Inventor： CHIANG PATRICIA ,  MATERIC ILIJA ,  BOLTON MARTIN ,  PELLERIN NICOLAS

Abstract: MULTIMODE FILTER FOR DE-BLOCKING AND DE-RINGING The present invention discloses a multimode filter that is versatile for digital signal processing including in-loop processing (de-blocking and de- ringing), post processing (de-blocking and de-ringing), and overlap smoothing. The present invention further discloses a flexi-standard filter comprising the multimode filter. The present invention also discloses an electronic device comprising the flexi-standard filter. The present invention finally discloses a process for digital signal processing that includes in- loop processing (de-blocking and de-ringing), post processing (de-blocking and de-ringing), and overlap smoothing. FIG 1

公开(公告)号：SG139602A1

公开(公告)日：2008-02-29

申请号：SG2006054506

申请日：2006-08-08

Applicant: ST MICROELECTRONICS ASIA

Inventor： YIN PATRICIA CHIANG WEI ,  WAI HUI YAU

Abstract: AUTOMATIC CONTRAST ENHANCEMENT A process for enhancing contrast of an image having pixels in different brightness intensities is disclosed. An image processor for enhancing contrast of an image having pixels is disclosed. A display having a receiver, an image processor according to the preceding, and a screen is also disclosed.

公开(公告)号：SG135920A1

公开(公告)日：2007-10-29

申请号：SG2003013000

申请日：2003-03-07

Applicant: ST MICROELECTRONICS ASIA

Inventor： AVERTY CHARLES ,  XUE YAO ,  SINGH RANJOT

IPC: G10L19/032 ,  G10L19/02 ,  H04B1/66

Abstract: A mask generation process for use in encoding audio data, including generating linear masking components from the audio data, generating logarithmic masking components from the linear masking components, and generating a global masking threshold from the logarithmic masking components. The process is a psychoacoustic masking process for use in an MPEG-1-L2 encoder, and includes generating energy values from a Fourier transform of the audio data, determining sound pressure level values from the energy values, selecting tonal and non-tonal masking components on the basis of the energy values, generating power values from the energy values, generating masking thresholds on the basis of the masking components and the power values, and generating signal to mask ratios for a quantizier on the basis of the sound pressure level values and the masking thresholds.

公开(公告)号：SG135058A1

公开(公告)日：2007-09-28

申请号：SG2006009740

申请日：2006-02-14

Applicant: ST MICROELECTRONICS ASIA

Inventor： WU YUAN ,  GEORGE SAPNA

Abstract: The present invention provides a digital audio signal processing system that comprises a set of delay lines, allpass and lowpass filters to achieve the reverberation effect. The present invention further provides a method for generating and controlling digital reverberations for audio signals. The reverberation generated will have an increasing echo density in the time domain and a faster decay of high frequency signals than low frequency signals. The controlling mechanism of reverberation generation is realized through the extraction of the real environment characteristics.

公开(公告)号：FR2896324A1

公开(公告)日：2007-07-20

申请号：FR0600415

申请日：2006-01-17

Applicant: ST MICROELECTRONICS SA ,  ST MICROELECTRONICS ASIA

Inventor： LEBOWSKY FRITZ ,  HUANG YONG ,  WANG HAIYUN

IPC: G06T3/40 ,  G09G3/28 ,  H04N7/26 ,  H04N7/30

Abstract: L'invention porte sur un dispositif de traitement d'une image numérique initiale comportant au moins une zone de contour, ledit dispositif comprenant des moyens d'agrandissement (MAGR) aptes à agrandir l'image initiale en une image numérique agrandie. Les moyens d'agrandissement comportent des moyens de détection aptes à détecter les zones de contours de l'image numérique initiale, des moyens de détermination (MD) aptes à déterminer la taille, en nombre de pixels, de chaque zone de contour, et des moyens d'agrandissement aptes à agrandir chaque zone de contour à l'aide d'un outil logiciel, choisi en fonction de la taille de chaque zone de contour, parmi un ensemble d'outils logiciels d'agrandissement.

公开(公告)号：DE60306729D1

公开(公告)日：2006-08-24

申请号：DE60306729

申请日：2003-10-01

Applicant: ST MICROELECTRONICS ASIA

Inventor： PHONG KAH-HO ,  HUI LUCAS Y W

IPC: G06T7/20 ,  G06T1/60 ,  H04N7/26

公开(公告)号：SG118191A1

公开(公告)日：2006-01-27

申请号：SG200303729

申请日：2003-06-27

Applicant: ST MICROELECTRONICS ASIA

Inventor： GOH KWONG HUANG

IPC: G06T5/00 ,  G06T5/40

Abstract: The method involves extracting a picture from an input video signal. An active window is determined for the picture. A histogram for luminance values of pixels in the window is calculated. Characteristics of the histogram are calculated. A suitable mapping function is selected based on the determined characteristics. The values of the pixels are mapped based on the selected function. The values of the pixels are filtered.

公开(公告)号：DE69732150T2

公开(公告)日：2006-01-12

申请号：DE69732150

申请日：1997-10-31

Applicant: ST MICROELECTRONICS ASIA ,  ST MICROELECTRONICS SA

Inventor： HUI WEI ,  LABORIE LOUIS ,  LASSURE GAEL

IPC: H04J3/06 ,  H04L12/70

公开(公告)号：SG113440A1

公开(公告)日：2005-08-29

申请号：SG200206994

申请日：2002-11-19

Applicant: ST MICROELECTRONICS ASIA ,  AGENCY SCIENCE TECH & RES

Inventor： ALDRIDGE CHRIS ,  TAN WEE TIONG ,  SUN MINYING

IPC: H04L1/00 ,  H03M13/29 ,  H03M13/00

Abstract: A TFCI decoder (600) in accordance with the present invention comprises a comparator (605), which is coupled to receive encoded TFCI codewords (110) at a first input (610). At a second input (645), the comparator (605) is coupled to a TFCI candidate codeword generator (625) that generates all the possible candidate TFCI codewords (647) from all possible corresponding unencoded TFCI source data. When an encoded TFCI codeword (110) is received at the first input (610), the comparator (605) compares the TFCI codeword (110) with each of the possible candidate TFCI codewords (647) provided to the second input (645), and the corresponding TFCI source data (650) is identified. Subsequently, the identified TFCI source data (650) is latched in a TFCI source data memory (640) by a latch signal (620) provided from an output (630) of the comparator (605).