Arturo M Rodriguez

US Patent:

8299889, Oct 30, 2012

Filed:

Dec 7, 2007

Appl. No.:

11/999967

Inventors:

Sanjeev Kumar - Sunnyvale CA, US
Labhesh Patel - San Francisco CA, US
Shmuel Shaffer - Palo Alto CA, US
Mukul Jain - San Jose CA, US
Arturo A. Rodriguez - Norcross GA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 13/00

US Classification:

340 31, 340 1324, 725 46, 725 78, 725 81, 348552, 386234

Abstract:

An apparatus in one embodiment is operable to receive, from a remote control device associated with a video display device, biometric input of a user. Responsive to a match of the biometric input with stored biometric data of the user, the user is authenticated. The remote control device and/or the video display device are then configured based on user settings associated with the stored biometric data of the user. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

US Patent:

8345083, Jan 1, 2013

Filed:

Jul 31, 2007

Appl. No.:

11/831729

Inventors:

Shantanu Sarkar - San Jose CA, US
Arturo A. Rodriguez - Norcross GA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04N 7/14

US Classification:

348 1409, 348 1413

Abstract:

In one embodiment, a method dynamically configures a BL bandwidth in a conference based on bandwidth capabilities in the video conferencing network. In one embodiment, the conference may include any combination of endpoints characterized as BL endpoints and SVCL endpoints. The method includes determining one or more bandwidth capabilities for a plurality of endpoints participating in a conference. The bandwidth capabilities for each respective endpoint may be based on its video decoding capability, the maximum bit-rate it can accept, the video encoding capability of the other endpoints, or a bandwidth constraint manifestation in a portion of the network, etc.

US Patent:

55859445, Dec 17, 1996

Filed:

May 10, 1994

Appl. No.:

8/241047

Inventors:

Arturo A. Rodriguez - Belmont CA

Assignee:

Kaleida Labs, Inc. - Mountain View CA

International Classification:

H04N 141
H04N 146

US Classification:

358500

Abstract:

The present invention provides methods and apparatus for representing visual images in compressed digital form. A series of digital images is provided to a random access memory and compressed one frame at a time. The compressor of the present invention divides a frame into a predefined number of blocks. Each block is tested to determine whether the block has a homogeneous color distribution. If the block has a homogeneous color distribution as defined by a selected homogeneity test, each pixel in that block is encoded with a single color value. If the block does not have a homogeneous color distribution, the block is split into two distributions, one distribution with a greater luminance than the average luminance of the first distribution and one distribution with a smaller luminance than the average luminance of the first distribution. These distributions are separately tested for homogeneity and the same process is repeated until the region has been resolved into homogeneous distributions. Distributions are then merged to check whether the merged distribution is homogeneous.

US Patent:

52628477, Nov 16, 1993

Filed:

Oct 20, 1992

Appl. No.:

7/963874

Inventors:

Arturo A. Rodriguez - Belmont CA
Mark A. Pietras - Boynton Beach FL
Andres J. Saenz - Belmont CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04N 964

US Classification:

358 21R

Abstract:

A method of converting a digital video signal having a luminance component for each pixel of a frame and two color difference components for contiguous groups of pixels in the frame into a video signal having three color components for each pixel is disclosed. Two color lookup tables are provided, each being indexed by a combination of the luminance level for a pixel and a color difference component for the group including the pixel. Entries in each color lookup table include a component value for one color and a subcomponent contributing to a component value for another color. The method provides combining the luminance components and color difference components for each pixel represented in the compressed digital video signal to retrieve the color component values for the three color video signal. Two colors are extracted directly from the lookup tables. The third color component is generated by combining subcomponent values extracted from the tables.

US Patent:

53293797, Jul 12, 1994

Filed:

Oct 22, 1992

Appl. No.:

7/965649

Inventors:

Arturo A. Rodriguez - Belmont CA
Mark A. Pietras - Boynton Beach FL
Andres J. Saenz - Belmont CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04N 146

US Classification:

358433

Abstract:

A method of quantitatively measuring fidelity of a reproduced image reconstructed from a compressed data representation of an original image is disclosed. The method comprises, responsive to user selection, for establishing a global assessment mode or a local assessment mode. In the global assessment mode changes in luminance of the reproduced image from the original image and changes in color in first and second color difference values of the reproduced image from the original image are used score fidelity. Changes in luminance are measured using a dynamic range, nonlinear transform equation. In the local assessment mode, and responsive to user selection, the reproduced image and the original image are segmented and corresponding pairs of segments from the reproduced image and the original image are identified. Scoring of fidelity of the reproduced image to the original image is done by comparing corresponding pairs of segments in color, luminance, shape, displacement and texture.

US Patent:

54021464, Mar 28, 1995

Filed:

Oct 23, 1992

Appl. No.:

7/965579

Inventors:

Arturo A. Rodriguez - Belmont CA
Mark A. Pietras - Boynton Beach FL
Andres J. Saenz - Belmont CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04N 712
H04N 1102

US Classification:

348400

Abstract:

Systems and methods that enable digital video compression techniques to manage and control artifact presence in each compressed frame of the video clip. Wherein specific embodiments are applicable to interframe and intraframe video compression methods and can be used in the compression of digital images and digital video clips. Other embodiments are employable in digital video compression and are applicable to interframe compression methods. A mechanism to increase the amount of video compression, while maintaining video quality that may otherwise be sacrificed with such increases in video compression, by threshold value management to accommodate the human eye's ability to more readily discern local image features or artifacts at central image locations or focused-upon areas, while tolerating, to a greater extent, artifacts dispersed elsewhere in the image.

US Patent:

53845986, Jan 24, 1995

Filed:

Oct 20, 1992

Appl. No.:

7/963791

Inventors:

Arturo A. Rodriguez - Belmont CA
Charles T. Rutherfoord - Delray Beach FL
Steven M. Hancock - Boca Raton FL
Robert F. Kantner - Boca Raton FL
Mark A. Pietras - Boynton Beach FL

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04N 7130
H04N 701

US Classification:

348384

Abstract:

A system and method of compressing original video data expressed in a plurality of digitally coded frames which enable decompression and playback of resulting compressed video data at one of a plurality of frame rates while maintaining temporal fidelity of the frames displayed. Compression includes selecting a plurality of rate streams for the compressed video data, including a highest rate stream including all of the frames of the original video data and a lowest rate stream including a subset of regularly spaced frames of the original video data. Then the initial frame in the original video data is spatially compressed and the resulting compressed data placed in the compressed video data. The initial frame is also saved as a base frame for all rate streams for subsequent temporal compression of the original video data. As frames are retrieved from the original video data in sequence, temporal compression based on frame differencing techniques between the retrieved frame and the base is carried out, with difference frames being stored to the compressed video data.