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Class Information
Number: 708/402
Name: Electrical computers: arithmetic processing and calculating > Electrical digital calculating computer > Particular function performed > Transform > Discrete cosine transform (i.e., dct)
Description: Subject matter wherein the transformation performed is a Discrete Cosine Transform.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620675 |
Image and audio transform methods |
Nov. 17, 2009 |
| 7613761 |
Haar wavelet transform embedded lossless type II discrete cosine transform |
Nov. 3, 2009 |
| 7580843 |
Synthesis subband filter process and apparatus |
Aug. 25, 2009 |
| 7574468 |
Digital signal processor having inverse discrete cosine transform engine for video decoding and partitioned distributed arithmetic multiply/accumulate unit therefor |
Aug. 11, 2009 |
| RE40854 |
Fast calculation apparatus for carrying out a forward and an inverse transform |
Jul. 14, 2009 |
| 7558815 |
Processing of performance sensitive transforms |
Jul. 7, 2009 |
| 7555510 |
Scalable system for inverse discrete cosine transform and method thereof |
Jun. 30, 2009 |
| 7512539 |
Method and device for processing time-discrete audio sampled values |
Mar. 31, 2009 |
| 7451170 |
Rapid and low cost of inverse discrete cosine transform system and method thereof |
Nov. 11, 2008 |
| 7437394 |
Merge and split discrete cosine block transform method |
Oct. 14, 2008 |
| 7412470 |
Arithmetic processing apparatus |
Aug. 12, 2008 |
| 7395432 |
Method of embedding/detecting digital watermark and apparatus for using thereof |
Jul. 1, 2008 |
| 7369989 |
Unified filter bank for audio coding |
May. 6, 2008 |
| 7346640 |
Image processing apparatus supporting both discrete cosine transform and discrete wavelet transform |
Mar. 18, 2008 |
| 7340497 |
Signal processing device and signal processing method |
Mar. 4, 2008 |
| 7330866 |
System for frequency-domain scaling for discrete cosine transform |
Feb. 12, 2008 |
| 7325023 |
Method of making a window type decision based on MDCT data in audio encoding |
Jan. 29, 2008 |
| 7321690 |
Device and method for detecting blurring of an image |
Jan. 22, 2008 |
| 7292730 |
Two-dimensional inverse discrete cosine transforming |
Nov. 6, 2007 |
| 7263544 |
Performance optimized approach for efficient numerical computations |
Aug. 28, 2007 |
| 7203717 |
Fast modified discrete cosine transform method |
Apr. 10, 2007 |
| 7136890 |
Inverse discrete cosine transform apparatus |
Nov. 14, 2006 |
| 7127482 |
Performance optimized approach for efficient downsampling operations |
Oct. 24, 2006 |
| 7117236 |
Parallel adder-based DCT/IDCT design using cyclic convolution |
Oct. 3, 2006 |
| 7098818 |
Encoder and decoder using run-length-limited code |
Aug. 29, 2006 |
| 7096245 |
Inverse discrete cosine transform supporting multiple decoding processes |
Aug. 22, 2006 |
| 7082450 |
Implementation of a transform and of a subsequent quantization |
Jul. 25, 2006 |
| 7065543 |
Apparatus and method for 2-D discrete transform using distributed arithmetic module |
Jun. 20, 2006 |
| 7058677 |
Method and apparatus for selectible quantization in an encoder |
Jun. 6, 2006 |
| 7035332 |
DCT/IDCT with minimum multiplication |
Apr. 25, 2006 |
| 7024441 |
Performance optimized approach for efficient numerical computations |
Apr. 4, 2006 |
| 7020671 |
Implementation of an inverse discrete cosine transform using single instruction multiple data instructions |
Mar. 28, 2006 |
| 7020672 |
Reduced complexity IDCT decoding with graceful degradation |
Mar. 28, 2006 |
| 7007054 |
Faster discrete cosine transforms using scaled terms |
Feb. 28, 2006 |
| 7007055 |
Method of performing NxM Discrete Cosine Transform |
Feb. 28, 2006 |
| 6996595 |
Apparatus and method for consolidating output data from a plurality of processors |
Feb. 7, 2006 |
| 6990506 |
Integer cosine transform matrix for picture coding |
Jan. 24, 2006 |
| 6973469 |
Two-dimensional discrete cosine transform using SIMD instructions |
Dec. 6, 2005 |
| 6907438 |
Two-dimensional inverse discrete cosine transform using SIMD instructions |
Jun. 14, 2005 |
| 6904151 |
Method for the estimation and recovering of general affine transform |
Jun. 7, 2005 |
| 6871208 |
Parallel adder-based DCT/IDCT design using cyclic convolution |
Mar. 22, 2005 |
| 6839727 |
System and method for computing a discrete transform |
Jan. 4, 2005 |
| 6832232 |
Dual-block inverse discrete cosine transform method |
Dec. 14, 2004 |
| 6831951 |
Image data processing apparatus and motion compensation processing method used therefor, and recording medium |
Dec. 14, 2004 |
| 6826584 |
Refinement of interpolated signals |
Nov. 30, 2004 |
| 6820104 |
Apparatus, methods, and computer program products for reducing the number of computations and number of required stored values for information processing methods |
Nov. 16, 2004 |
| 6807310 |
Transformation of image parts in different domains to obtain resultant image size different from initial image size |
Oct. 19, 2004 |
| 6799192 |
Method and apparatus for inverse discrete cosine transform |
Sep. 28, 2004 |
| 6766341 |
Faster transforms using scaled terms |
Jul. 20, 2004 |
| 6754687 |
Methods and apparatus for efficient cosine transform implementations |
Jun. 22, 2004 |
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