Patents by Inventor Virat Deepak
Virat Deepak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9632562Abstract: Various embodiments of systems and methods are disclosed for reducing volatile memory standby power in a portable computing device. One such method involves receiving a request for a volatile memory device to enter a standby power mode. One or more compression parameters are determined for compressing content stored in a plurality of banks of the volatile memory device. The stored content is compressed based on the one or more compression parameters to free-up at least one of the plurality of banks. The method disables self-refresh of at least a portion of one or more of the plurality of banks freed-up by the compression during the standby power mode.Type: GrantFiled: February 8, 2015Date of Patent: April 25, 2017Assignee: QUALCOMM INCORPORATEDInventors: Nhon Toai Quach, Virat Deepak, Oscar Cabral Arias, Yanru Li, Haw-Jing Lo, Michael Drop, Venkata Narayana Ramesh Pinnamaraju Durga, Moinul Khan
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Publication number: 20160148670Abstract: Various embodiments of systems and methods are disclosed for reducing volatile memory standby power in a portable computing device. One such method involves receiving a request for a volatile memory device to enter a standby power mode. One or more compression parameters are determined for compressing content stored in a plurality of banks of the volatile memory device. The stored content is compressed based on the one or more compression parameters to free-up at least one of the plurality of banks. The method disables self-refresh of at least a portion of one or more of the plurality of banks freed-up by the compression during the standby power mode.Type: ApplicationFiled: February 8, 2015Publication date: May 26, 2016Inventors: NHON TOAI QUACH, VIRAT DEEPAK, OSCAR CABRAL ARIAS, YANRU LI, HAW-JING LO, MICHAEL DROP, VENKATA NARAYANA RAMESH PINNAMARAJU DURGA, MOINUL KHAN
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Patent number: 8731622Abstract: A method and an apparatus for system acquisition at a wireless device while maintaining a predetermined battery life span, include determining a level of remaining battery power upon entering an out of service state. A duty cycle, comprising a search time and sleep time, of acquisition attempts is determined such that the level of remaining battery power lasts for the defined battery life span. The duty cycle is determined by adjusting at least one of the search time and the sleep time, depending on how long the remaining battery power is required to last.Type: GrantFiled: May 23, 2008Date of Patent: May 20, 2014Assignee: QUALCOMM IncorporatedInventors: Parag M. Kanade, Alex K. Tu, Virat Deepak
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Patent number: 8467404Abstract: An apparatus for detecting the presence of a frequency channel is provided. The apparatus comprises an energy detection unit configured to measure receive energy over a first bandwidth and a second energy detection unit configured to measure receive energy over a second bandwidth. The apparatus further comprises a processor configured to compare the measured receive energy over the first bandwidth to a first energy threshold, to compare the measured receive energy over the second bandwidth to a second energy threshold, and to detect the presence of the frequency channel when the measured receive energies over the first and second bandwidths are above the first and second energy thresholds, respectively.Type: GrantFiled: March 31, 2009Date of Patent: June 18, 2013Assignee: Qualcomm IncorporatedInventors: Alex Kuang-Hsuan Tu, Parag Kanade, Virat Deepak
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Patent number: 8249636Abstract: A wireless device detects for an adverse channel condition, which may be (1) a frequent out of service (FOOS) condition indicative of frequent in and out of service or (2) an unbalanced forward/reverse link condition indicative of unbalanced coverage for the forward and reverse links. A FOOS condition may be detected based on an average in-service time, the number of lost system connections, the number of systems to which connections have been made, the rate of change for the systems, the altitude of the wireless device, and/or other parameters. An unbalanced forward/reverse link condition may be detected based on the average in-service time, the number of system access failures, and/or other parameters. The wireless device performs at least one action to conserve battery power if an adverse channel condition is detected. The action(s) may include performing system acquisition less frequently, disabling system registration, performing registration less frequently, and/or going to sleep.Type: GrantFiled: March 28, 2006Date of Patent: August 21, 2012Assignee: QUALCOMM IncorporatedInventors: Alex Kuang-Hsuan Tu, Virat Deepak
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Patent number: 8200217Abstract: A method and apparatus for channel acquisition using a mobile station include obtaining geographic information of at least one wireless communication systems using one or more systems, respectively. The one or more channels are prioritized on a preferred roaming list based on the geographic information, and it is determined whether any of the prioritized one or more channels on the preferred roaming list are also on a most recently used (MRU) list. The mobile station attempts to acquire at least one of the prioritized one or more channels that is also on the MRU list.Type: GrantFiled: May 23, 2008Date of Patent: June 12, 2012Assignee: QUALCOMM IncorporatedInventors: Parag Mohan Kanade, Alex K. Tu, Virat Deepak
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Patent number: 8090395Abstract: A channel scanning order is dynamically created, modified, selectively ignored, or combinations thereof based on historical data, motion information, context information, alert message systems, network reselection, or combinations thereof. If a less preferred network has served a mobile device longer than a threshold amount of time, acquisition of the less preferred network is attempted before attempting acquisition of a more preferred network.Type: GrantFiled: March 12, 2009Date of Patent: January 3, 2012Assignee: QUALCOMM IncorporatedInventors: Francis M. Ngai, Parag Mohan Kanade, Alex Kuang-Hsuan Tu, Virat Deepak
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Publication number: 20100246420Abstract: An apparatus for detecting the presence of a frequency channel is provided. The apparatus comprises an energy detection unit configured to measure receive energy over a first bandwidth and a second energy detection unit configured to measure receive energy over a second bandwidth. The apparatus further comprises a processor configured to compare the measured receive energy over the first bandwidth to a first energy threshold, to compare the measured receive energy over the second bandwidth to a second energy threshold, and to detect the presence of the frequency channel when the measured receive energies over the first and second bandwidths are above the first and second energy thresholds, respectively.Type: ApplicationFiled: March 31, 2009Publication date: September 30, 2010Applicant: QUALCOMM IncorporatedInventors: Alex Kuang-Hsuan Tu, Parag Kanade, Virat Deepak
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Publication number: 20100234021Abstract: A channel scanning order is dynamically created, modified, selectively ignored, or combinations thereof based on historical data, motion information, context information, alert message systems, network reselection, or combinations thereof. If a less preferred network has served a mobile device longer than a threshold amount of time, acquisition of the less preferred network is attempted before attempting acquisition of a more preferred network.Type: ApplicationFiled: March 12, 2009Publication date: September 16, 2010Applicant: QUALCOMM IncorporatedInventors: Francis M. Ngai, Parag Mohan Kanade, Alex Kuang-Hsuan Tu, Virat Deepak
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Publication number: 20100178919Abstract: Systems and methodologies are described that facilitate optimum technology selection within multi-modal configurations. A multi-mode mobile device can select and/or utilize a particular technology, system and/or configuration to provide optimal quality of service (QOS) in terms of various characteristics. For instance, an optimum technology can be selected and employed for a service request based upon performance, cost, power consumption, interference levels, and the like. The multi-modal mobile device can obtain characteristics of a plurality of technologies during idle states. The characteristics can be analyzed in order to generate a QOS table that provides relative rankings of the plurality of technologies in terms of service request type and the obtained characteristics. The QOS table can be utilized to select an optimum technology upon initiation of a service request.Type: ApplicationFiled: January 15, 2009Publication date: July 15, 2010Applicant: QUALCOMM IncorporatedInventors: Virat Deepak, Alex Kuang-Hsuan Tu, Parag Mohan Kanade
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Publication number: 20090291683Abstract: A method and apparatus for channel acquisition using a mobile station include obtaining geographic information of at least one wireless communication systems using one or more systems, respectively. The one or more channels are prioritized on a preferred roaming list based on the geographic information, and it is determined whether any of the prioritized one or more channels on the preferred roaming list are also on a most recently used (MRU) list. The mobile station attempts to acquire at least one of the prioritized one or more channels that is also on the MRU list.Type: ApplicationFiled: May 23, 2008Publication date: November 26, 2009Applicant: QUALCOMM INCORPORATEDInventors: Parag Mohan Kanade, Alex K. Tu, Virat Deepak
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Publication number: 20090289601Abstract: A method and an apparatus for system acquisition at a wireless device while maintaining a predetermined battery life span, include determining a level of remaining battery power upon entering an out of service state. A duty cycle, comprising a search time and sleep time, of acquisition attempts is determined such that the level of remaining battery power lasts for the defined battery life span. The duty cycle is determined by adjusting at least one of the search time and the sleep time, depending on how long the remaining battery power is required to last.Type: ApplicationFiled: May 23, 2008Publication date: November 26, 2009Applicant: QUALCOMM INCORPORATEDInventors: Parag M. Kanade, Alex K. Tu, Virat Deepak
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Publication number: 20070082688Abstract: A wireless device detects for an adverse channel condition, which may be (1) a frequent out of service (FOOS) condition indicative of frequent in and out of service or (2) an unbalanced forward/reverse link condition indicative of unbalanced coverage for the forward and reverse links. A FOOS condition may be detected based on an average in-service time, the number of lost system connections, the number of systems to which connections have been made, the rate of change for the systems, the altitude of the wireless device, and/or other parameters. An unbalanced forward/reverse link condition may be detected based on the average in-service time, the number of system access failures, and/or other parameters. The wireless device performs at least one action to conserve battery power if an adverse channel condition is detected. The action(s) may include performing system acquisition less frequently, disabling system registration, performing registration less frequently, and/or going to sleep.Type: ApplicationFiled: March 28, 2006Publication date: April 12, 2007Inventors: Alex Kuang-Hsuan Tu, Virat Deepak