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| Number | Title | Issue Date |
| 7424502 | Non-uniform filter bank implementation A method of searching for a best-match decimation vector of decimation factors for non-uniform filter bank, the best match vector allowing perfect or near-perfect reconstruction of an input signal of the non-uniform filter bank, the method including the steps of: a)... | 09/09/2008 |
| 7424148 | Method and system for contrast enhancement of digital video A method for enhancing the contrast of video pictures that includes the steps of receiving an input video signal; extracting a picture from said input video signal; determining an active window for said picture; calculating a histogram for luminance values of pixels... | 09/09/2008 |
| 7415494 | Divider apparatus and associated method A method of dividing, in a micro computer unit (MCU), a first binary number (N), having a first number of significant bits, by a second binary number (D), having a second number of significant bits, produces an integer result (Y). The method includes: determining th... | 08/19/2008 |
| 7406208 | Edge enhancement process and system An edge enhancement system, including a selective edge controller for determining one or more properties of an edge of image data, and for generating one or more weighting factors on the basis of properties of the edge; and a scaling module for scaling an edge enhan... | 07/29/2008 |
| 7385850 | Method of programming and verifying cells of a nonvolatile memory and relative NAND FLASH memory A method of programming cells in a nonvolatile memory is based upon a Global Verify operation and a Byte-by-byte Verify operation. The cells of a destination page of the nonvolatile memory are programmed, and logic values stored in the programmed cells of a source p... | 06/10/2008 |
| 7372291 | Circuits having precision voltage clamping levels and method A slew rate control circuit includes a receiver for receiving input signals and an output generator for generating output signals based on the input signals. The slew rate control circuit also includes an electrical interconnection coupling an output of the receiver... | 05/13/2008 |
| 7369989 | Unified filter bank for audio coding A unified filter bank for use in encoding and decoding MPEG-1 audio data, wherein input audio data is encoded into coded audio data and the coded audio data is subsequently decoded into output audio data. The unified filter bank includes a plurality of filters, with... | 05/06/2008 |
| 7366240 | Decoder and method of decoding using pseudo two pass decoding and one pass encoding A method of processing video frame data includes the steps of: receiving a video frame; partially decoding the video frame; fully decoding the video frame to produce macroblocks; determining video data parameters from the partially decoded video frame or both the pa... | 04/29/2008 |
| 7363216 | Method and system for parametric characterization of transient audio signals A method of parametrically encoding a transient audio signal, including the steps of: determining a set V of the N largest frequency components of the transient audio signal, where N is a predetermined number; determining an approximate envelope of the transient aud... | 04/22/2008 |
| 7359521 | Aliasing cancellation in audio effects algorithms A method for effecting aliasing cancellation in an audio effects algorithm using a delay modulated signal, derived from interpolation of a delay modulator at an instantaneous sampling frequency, including: determining the instantaneous sampling frequency 1/Tisf... | 04/15/2008 |
| 7337025 | Neural network based method for exponent coding in a transform coder for high quality audio A method and apparatus for assigning an exponent coding strategy in a digital audio transform coder. Different coding strategies having different differential coding limits may be assigned to different set of transform exponents according to the frequency domain cha... | 02/26/2008 |
| 7286714 | Method and device for compressing an image signal based upon differential quantization of data Method of compressing a digital image signal in which a first quantization step set, which is unique for a given segment, is determined so that the number of bits needed to encode the quantized data corresponding to this segment is greater than a target value. This ... | 10/23/2007 |
| 7248622 | Low-power code division multiple access receiver A low-power receiver architecture of use in direct sequence spread spectrum communications system receivers, such as in a code division multiple access system, is provided. The receiver employs analog correlation, wherein its analog-digital, converters are able to o... | 07/24/2007 |
| 7203717 | Fast modified discrete cosine transform method A technique for computationally efficient evaluation of the Modified Discrete Cosine Transform (MDCT) using the Fast Fourier Transform (FFT) method is presented in which the input of the FFT block consists of a sequence of N complex numbers, and this complex data is... | 04/10/2007 |
| 7193659 | Method and apparatus for compensating for chrominance saturation A method of color saturation compensation in a video signal is disclosed. The method includes the steps of: processing a luminance signal component of the video signal; determining whether the processing of the luminance signal results in a change in chrominance sat... | 03/20/2007 |
| 7190940 | Method and system for frequency offset estimation A method and system for estimating a frequency offset between a receiver and a transmitter, including the steps of, or means for: (a) receiving a first signal from said transmitter and demodulating the first signal; (b) performing a frequency shift on said first sig... | 03/13/2007 |
| 7092441 | Moving pictures encoding with constant overall bit rate A method and apparatus control bit rates used in a moving pictures encoder, such as an MPEG standard encoder. A sequence of moving pictures is divided into segments each of which comprises one or more groups of pictures. A constant overall bit rate is specified for ... | 08/15/2006 |
| 7007053 | Area efficient realization of coefficient architecture for bit-serial FIR, IIR filters and combinational/sequential logic structure with zero latency clock output An area-efficient realization of a coefficient block includes hardware sharing techniques and optimizations applied to this block. The block is connected to coefficient lines coming from a delay block to be connected to perform a filtering operation or a mathematica... | 02/28/2006 |
| 6982762 | Sequence adaptive bit allocation for pictures encoding A method and apparatus for encoding pictures of a moving pictures sequence according to an overall target bit-rate, such as in a MPEG video encoder. Each picture has an assigned picture coding type for which a quality factor is adaptively determined according to pas... | 01/03/2006 |
| 6952677 | Fast frame optimization in an audio encoder In a transform encoder for audio data, encoded data in the form of mantissas, exponents and coupling data is packed into fixed length frames in an output bitstream. The fields within the frame for carrying the different forms of data are variable in length, and apac... | 10/04/2005 |
| 6876702 | Motion vector detection with local motion estimator A method and apparatus of encoding digital video, for example according to the ISO/IEC MPEG standards (ISO/IEC 11172-2 MPEG-1 and ISO/IEC 13818-2 MPEG-2), which employs a local motion estimator for determining respective local motion vectors for groups of adjacent m... | 04/05/2005 |
| 6839674 | Method and apparatus for spectral exponent reshaping in a transform coder for high quality audio A method and apparatus for coding audio data in a frequency transform digital audio coder employing differential frequency coefficient exponent coding. Differential coding of exponents places constraints on possible values an exponent can take, which can lead to dis... | 01/04/2005 |
| 6591241 | Selecting a coupling scheme for each subband for estimation of coupling parameters in a transform coder for high quality audio A method and apparatus for determining parameters for coupling of channels in a digital audio encoder. A frequency range of two audio channels is coupled together in a coupling channel, and a systematic method of determining optimum coupling parameters is... | 07/08/2003 |
| 6574602 | Dual channel phase flag determination for coupling bands in a transform coder for high quality audio A method and apparatus for subband phase flag determination for coupling of channels in a dual channel audio encoder is based on a psychoacoustic model of the human auditory system. The method and apparatus are applicable to audio encoders which utilize a... | 06/03/2003 |
| 6356870 | Method and apparatus for decoding multi-channel audio data A method and apparatus for decoding a bitstream (100) of transform coded multi-channel audio data. The bitstream is subjected to a block decoding process (101) to obtain for each input audio channel within the multi-channel audio data a corresponding bloc... | 03/12/2002 |
| 6137540 | Method and apparatus for correcting color difference signals This invention relates to the color matching function used in connection with the luminance or white stretch function in a television video processor. Automatic adjustment in the amplitude of the color difference signals is provided to compensate for the ... | 10/24/2000 |
| 5909095 | Bemf zero-crossing detection system of a multiple-phase motor The invention relates to a method for detecting a threshold-crossing of a back electromotive force (bemf) measured in one phase of a multiple-phase motor, the one phase being set at a high impedance while at least one other phase is supplied by pulse-widt... | 06/01/1999 |
