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Karia, US
Ketan V. Karia, Cortland, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090231479 | Image Sensor ADC and CDS per Column - A solid state imager converts analog pixel values to digital form on an arrayed per-column basis. A counter is coupled to an N-bit DAC to produce an analog ramp that varies corresponding to the contents of the counter. A ripple counter is associated with each respective column. A clock or a source of counts at a predetermined sequence supplies clock signals or counts to the counter elements. Column comparators gate the counter elements when the analog ramp equals the pixel value. The counter contents feed a video output bus to produce the digital video signal. Additional black-level readout counters elements can create and store a black level digital value that is subtracted from the pixel value to reduce fixed pattern noise. The counters may employ two's complement arithmetic. An additional array of buffer counter/latches can be employed. Ripple counters can be configured as counters to capture the digital video level, and then as shift registers to clock out the video levels to an output bus. The clock pulses or counts for the DAC counter and for the ripple counters can be at the same or different rates. | 09-17-2009 |
Ketan Vrajlal Karia, Cortland, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090290043 | Sub-Pixel Array Optical Sensor - Improving the dynamic range of captured images is disclosed by using sub-pixel arrays to capture light at different exposures and generate color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels. The sub-pixels that make up a sub-pixel array can include red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and in some embodiments, clear sub-pixels. Those sub-pixel arrays having clear sub-pixels effectively have a higher exposure level and can capture low-light scenes (for dark areas) better than those sub-pixel arrays without clear sub-pixels. Each sub-pixel array can produce a color pixel output that is a combination of the outputs of the sub-pixels in the sub-pixel array. Each sub-pixel in a sub-pixel array can have the same exposure time, or in some embodiments, individual sub-pixels within a sub-pixel array can have different exposure times to improve the overall dynamic range even more. | 11-26-2009 |
| 20090290052 | Color Pixel Pattern Scheme for High Dynamic Range Optical Sensor - The use of a Bayer pattern array in digital image sensors to enhance the dynamic range of the sensors is disclosed. Each Bayer pattern in the array can include three different pixels having a first exposure, and a fourth pixel (which is the same color as one of the other pixels in the array) having a second exposure. The dynamic range of the Bayer pattern array can be enhanced by using different exposure times for the pixels. Each pixel can capture only one channel (i.e. either red (R), green (G) or blue (B) light). Interpolation of neighboring pixels, including those having different exposure times, can enable the pixels in the Bayer pattern array to generate missing color information and effectively become a color pixel, and can allow the Bayer pattern array to have a higher dynamic range. | 11-26-2009 |
| 20100149393 | INCREASING THE RESOLUTION OF COLOR SUB-PIXEL ARRAYS - Increasing the resolution of digital imagers is disclosed by sampling an image using diagonally oriented color sub-pixel arrays, and creating missing pixels from the sampled image data. A first method maps the diagonal color imager pixels to every other orthogonal display pixel. The missing display pixels can be computed by interpolating data from adjacent color imager pixels, and averaging color information from neighboring display pixels. This averaging can be done either by weighting the surrounding pixels equally, or by applying weights to the surrounding pixels based on intensity information. A second method utilizes the captured color imager sub-pixel data instead of interpolation. Missing color pixels for orthogonal displays can be obtained directly from the sub-pixel arrays formed between the row color pixels in the imager. | 06-17-2010 |
Meetesh M. Karia, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090327166 | Method And Apparatus For Efficient Delta Pricing - A method of generating a price is disclosed. The method includes generating a delta price and generating a final price using the delta price. | 12-31-2009 |
Snehal Karia, Fremont, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080220781 | METHODS AND ARRANGMENT FOR IMPLEMENTING AN ACTIVE CALL HANDOVER BY EMPLOYING A SWITCHING COMPONENT - An active call handover arrangement for managing a handover between a plurality of telecommunication devices associated with a public extension number is provided. The arrangement includes a mobility server configured to manage a telecommunication session between a telecommunication device of a third-party caller and a first telecommunication device of the plurality of telecommunication devices. The arrangement also includes a switch component configured to be associated with at least one telecommunication device of the plurality of telecommunication devices. At least one telecommunication device is configured to include mobility client software. The switch component is also configured to enable a user to perform the handover between the first telecommunication device and a second telecommunication device of the plurality of telecommunication devices. | 09-11-2008 |
| 20090016333 | CONTENT-BASED ADAPTIVE JITTER HANDLING - A packet communication device is disclosed. The packet communication device may include a detector configured to detect a characterized content in incoming packets received by the packet communication device. The packet communication device may further include a play-out control configured to perform an adjustment of the incoming packets to produce adjusted packets and output the adjusted packets, if the detector has detected the characterized content in the incoming packets. | 01-15-2009 |
| 20090094325 | Acuro Universal Multimedia Communication System (AUMCS) - A global multimedia server, local multimedia server and multimedia client create a universal communication system allowing any consumer to engage a plethora of media content to any end user. The global media server may be located through a publicly accessible IP address using a FQDN (fully qualified domain name) based on DNS. The delivery of multimedia calls or messages may also be achieved by using an E.164 number as universal resource identifier. PBX features allow for the manipulation of multimedia content and the use of mixed and multiple media during a communication or the creation of spontaneous or scheduled conferences that are both collaborative and interactive. | 04-09-2009 |
Timir Karia, New York, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20080282086 | Method and Apparatus for Protecting Information and Privacy - A system for protecting software against piracy while protecting a user's privacy enables enhancements to the protection software in a user device and extended protections against piracy. The protection system allows the user device to postpone validation of purchased tags stored in a tag table for installed software and to re-establish ownership of a tag table to recover from invalidation of a tag table identifier value resulting from revelation of a tag table identifier value. Continued use of the tag table is provided by the use of credits associated with a tag table. A protection center is protected against denial of service attacks by making calls to the protection center cost time or money to the attackers. | 11-13-2008 |
| 20100212019 | Method and Apparatus for Protecting Information and Privacy - A system for protecting software against piracy while protecting a user's privacy enables enhancements to the protection software in a user device and extended protections against piracy. The protection system allows the user device to postpone validation of purchased tags stored in a tag table for installed software and to re-establish ownership of a tag table to recover from invalidation of a tag table identifier value resulting from revelation of a tag table identifier value. Continued use of the tag table is provided by the use of credits associated with a tag table. A protection center is protected against denial of service attacks by making calls to the protection center cost time or money to the attackers. | 08-19-2010 |