Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Bergeron
Cyril Bergeron, Paris FR
| Patent application number | Description | Published |
|---|---|---|
| 20080260028 | Video H.264 Encryption Preserving Synchronization and Compatibility of Syntax - A method for encrypting data exchanged between an encoder and a decoder in a video system is disclosed. A set of bits which, when encoded, do not have any influence upon the decoding stage, are determined during the encoding stage. At least one part or all of the bits selected in stage 1 is/are encoded prior to transmission to the decoding stage. The bit selection stage determines the parts of the flow of bits that only modify the contexts of the decoding process in an insignificant manner in the sense that the modification due to encryption does cause desynchronization or does not lead to non-compatible bit flows with regard to encoding contexts and visual impact. The present invention is used with H.264 encoders/decoders. | 10-23-2008 |
| 20090052550 | METHOD FOR SHAPING FRAMES OF A VIDEO SEQUENCE - Procedure and device for shaping frames of a video sequence or group of pictures GOP using a mixing table adapted for arranging the frames of the highest importance regularly while leaving intervals between them, filling the intervals with frames of lesser importance, and coding the new sequence thus obtained. | 02-26-2009 |
| 20090177949 | METHOD FOR PROTECTING MULTIMEDIA DATA USING ADDITIONAL NETWORK ABSTRACTION LAYERS (NAL) - A method for protecting multimedia data encoded by the H.264 standard, the data being encapsulated in a structure of the network abstraction layer or NAL type, characterized in that the user inserts at least one redundancy NAL containing the error-correcting code used for transmitting the data. | 07-09-2009 |
| 20090304070 | METHOD ALLOWING COMPRESSION AND PROTECTION PARAMETERS TO BE DETERMINED FOR THE TRANSMISSION OF MULTIMEDIA DATA OVER A WIRELESS DATA CHANNEL - A method allowing operating parameters, such as the compression ratio and/or the protection ratio for a multimedia data transmission channel to be determined, wherein it includes at least one step during which several values of sensitivity are determined for pairs of values fixed source bit-rate, desired compression ratio, a step where the different values obtained for an operating point of the fixed channel are compared with one another, and a step where the optimum sensitivity value is selected, the sensitivity value being defined taking the desired source bit-rate and the compression ratio into account. | 12-10-2009 |
Cyril Bergeron, Colombes FR
| Patent application number | Description | Published |
|---|---|---|
| 20120121197 | METHOD FOR ESTIMATING THE THROUGHPUT AND THE DISTORTION OF ENCODED IMAGE DATA AFTER ENCODING - A method for estimating a bit rate and the distortion of at least one compressed image using at least one wavelet transform operation delivering at least one sub-band b containing coefficients, said sub-band being subdivided into at least one packet of coefficients associated with a compression quality layer, said packet also including a packet header and being transmitted through a propagation channel, said method including estimating a distortion D | 05-17-2012 |
Nicolas Bergeron, Stein NL
| Patent application number | Description | Published |
|---|---|---|
| 20100302615 | ELECTROWETTING DISPLAY HAVING CONTROLLED FLUID MOTION - An electrowetting display device comprises a plurality of picture elements ( | 12-02-2010 |
Nicolas Bergeron, Surrey GB
| Patent application number | Description | Published |
|---|---|---|
| 20080211999 | Transflective Liquid Crystal Display Device - A transflective display device has a color filter portion for each pixel which includes portions of two different thicknesses. In one implementation, both thicknesses are used for the reflective part of the pixel, and the relative thicknesses as well as the proportion of different thickness layers can be controlled to enable independent control of the color filtering characteristics in the reflective and transmissive modes of operation. Another implementation uses different portions of light absorbing material for the functions of pixel definition and height adjustment, but these may be achieved with a single patterned layer. | 09-04-2008 |
Vance Bergeron, Francheville FR
| Patent application number | Description | Published |
|---|---|---|
| 20090274592 | PLASMA-BASED AIR PURIFICATION DEVICE INCLUDING CARBON PRE-FILTER AND/OR SELF-CLEANING ELECTRODES - In one aspect of the invention, a plasma reactor is arranged to treat aerosol particulates in a fluid stream passing through the reactor. The plasma reactor includes a plasma chamber having a self-cleaning electrode. The self-cleaning electrode is configured to clean various residues from the electrode without need to open or otherwise service the unit. In another aspect, the invention comprises a carbon-based pre-filter arranged to filter in flowing air to reduce the amount of silicone-based contaminant in the air flow before the air reaches the ionization chamber. | 11-05-2009 |
| 20110274588 | AIR PURIFICATION DEVICES - An air purification reactor is described that has a variety of improvements. In one aspect, the air purification reactor includes an ionizer (or plasma chamber), an electrostatic filter, a photocatalyst, and a UV light source that is distinct from the ionizer. The ionizer is arranged to introduce ions into a gaseous fluid stream passing through the air purification device. The electrostatic filter is located downstream of the ionizer and is arranged to electrostatically filter particles from the fluid stream. The UV light source is positioned to subject the photocatalyst to ultraviolet light and may be arranged upstream, downstream, or intermediate the electrostatic filter. With this arrangement, the ultraviolet light that impinges on the photocatalyst causes a photocatalytic oxidative reaction to occur at the photocatalyst that is capable of reducing volatile organic compounds carried in the fluid stream. In other (separate) aspects, the reactor includes an absorber or an oxidation catalyst. Generally, the various aspects of the invention may be used separately or in combination with one another. | 11-10-2011 |
Vance Bergeron, Antony FR
| Patent application number | Description | Published |
|---|---|---|
| 20110183852 | BLOCK POLYMERS, COMPOSITIONS AND METHODS FOR USE FOR FOAMS, LAUNDRY DETERGENTS, AND SHOWER RINSES AND COAGULANTS - The present invention relates to a block polymeric material. Typically the block polymer comprises units capable of having an average cationic charge density of about 15 or less, preferably 5 or less, more preferably from about 0.05 to about 5, even more preferably from about 0.05 to about 2.77, even more preferably from about 0.1 to about 2.75, most preferably from about 0.75 to about 2.25 units per 100 daltons molecular weight at a pH of from about 4 to about 12. The polymeric material is a suds enhancer and a suds volume extender for personal care products such as soaps and shampoos. The compositions have increased effectiveness for preventing re-deposition of grease during hand and body washing. The polymers are also effective as a soil release agent in fabric cleaning compositions. The polymeric material is also effective in oil well treating foam, fire-fighting foam, hard surface cleaning foam, shaving cream, post-foaming shaving gel, dephiliatories and as a coagulant/retention aid for titanium dioxide in paper making. | 07-28-2011 |
| 20110257015 | POLYMERS, COMPOSITIONS AND METHODS FOR USE FOR FOAMS, LAUNDRY DETERGENTS, SHOWER RINSES AND COAGULANTS - The present invention relates to a polymeric material comprising units capable of having a cationic charge at a pH of from about 4 to about 12; provided that said polymeric material has an average cationic charge density from about 2.75 or less units per 100 daltons molecular weight at a pH of from about 4 to about 12. The polymeric material is a suds enhancer and a suds volume extender for hand dishwashing compositions and personal care products such as soaps, shaving cream foam, foaming shaving gel, foam dephiliatories and shampoos. The polymers are also effective as a soil release agent in fabric cleaning compositions. The polymers are also useful in agrochemical foam, fire-fighting foam, hard surface cleaner foam, and coagulant for titanium dioxide in paper making. | 10-20-2011 |