Patents by Inventor Tushar Ramanlal
Tushar Ramanlal 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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Publication number: 20220078704Abstract: Embodiments disclosed herein relate to reducing power consumption of an electronic device scanning for wireless communication signals while maintaining or even improving an efficiency of the scanning operations. To do so, the electronic device may include more than one scan core, such as a main core and a receiving core. The receiving core may have limited functionality compared to the main core. For example, the receiving core may only receive wireless signals (including scanning for wireless signals). That is, the receiving core may not support certain operations that consume relative high power that are supported by the main core, such as transmission of signals. In this way, operation of the receiving core, either in place of or in addition to the main core, may reduce power consumption of the electronic device by avoiding high power consuming operations, such as data transmission, while scanning for various signals.Type: ApplicationFiled: July 12, 2021Publication date: March 10, 2022Inventors: Sriram Lakshmanan, Tushar Ramanlal Shah, Udaykumar R. Raval, Bernd Willi Adler, Dongwoon Hahn, Shehla S. Rana, Yang Yu, Rajneesh Kumar, Veerendra Boodannavar, Yann Ly-Gagnon, Duy N. Phan, Karan Sawhney, Rohit Sharma, Sarin S. Mehta
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Patent number: 10523261Abstract: An electronic device includes an antenna configured to receive a wireless signal. The electronic device also includes a first correlator configured to correlate the wireless signal to a communication of a first wireless protocol type and a second correlator configured to correlate the wireless signal to a communication of a second wireless protocol type.Type: GrantFiled: March 31, 2016Date of Patent: December 31, 2019Assignee: APPLE INC.Inventors: Tushar Ramanlal Shah, Joseph Hakim
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Publication number: 20170288723Abstract: An electronic device includes an antenna configured to receive a wireless signal. The electronic device also includes a first correlator configured to correlate the wireless signal to a communication of a first wireless protocol type and a second correlator configured to correlate the wireless signal to a communication of a second wireless protocol type.Type: ApplicationFiled: March 31, 2016Publication date: October 5, 2017Inventors: Tushar Ramanlal Shah, Joseph Hakim
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Patent number: 8503457Abstract: To more fully utilize the available bandwidth of a network link, network nodes in accordance with the present invention allow TDM data to be combined with packet data. A Packet/TDM cross connect switch, having both a TDM switch and a packet switch, is used in these embodiments. Data packets are transformed into TDM packet columns. The TDM packet columns are combined with standard TDM data columns in the payload of a TDM data frame. Data packets may be sorted based on a priority scheme, in which high priority data packets are given precedence over lower priority data. However, both high priority and low priority may be combined in a TDM packet column.Type: GrantFiled: January 15, 2008Date of Patent: August 6, 2013Assignee: NetLogic Microsystems, Inc.Inventors: Addepalli Sateesh Kumar, Chandrasekaran Nageswara Gupta, Tushar Ramanlal Shah, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Sheikh, Jai Prakash Agrawal
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Publication number: 20080130689Abstract: To more fully utilize the available bandwidth of a network link, network nodes in accordance with the present invention allow TDM data to be combined with packet data. A Packet/TDM cross connect switch, having both a TDM switch and a packet switch, is used in these embodiments. Data packets are transformed into TDM packet columns. The TDM packet columns are combined with standard TDM data columns in the payload of a TDM data frame. Data packets may be sorted based on a priority scheme, in which high priority data packets are given precedence over lower priority data.Type: ApplicationFiled: January 15, 2008Publication date: June 5, 2008Inventors: Addepalli Sateesh Kumar, Chandrasekaran Nageswara Gupta, Tushar Ramanlal Shah, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Sheikh, Jai Prakash Agrawal
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Patent number: 7333512Abstract: To more fully utilize the available bandwidth of a network link, network nodes in accordance with the present invention allow TDM data to be combined with packet data. A Packet/TDM cross connect switch, having both a TDM switch and a packet switch, is used in these embodiments. Data packets are transformed into TDM packet columns. The TDM packet columns are combined with standard TDM data columns in the payload of a TDM data frame. Data packets may be sorted based on a priority scheme, in which high priority data packets are given precedence over lower priority data. However, both high priority and low priority may be combined in a TDM packet column.Type: GrantFiled: December 17, 2001Date of Patent: February 19, 2008Assignee: RMI CorporationInventors: Addepalli Sateesh Kumar, Chandrasekaran Nageswara Gupta, Tushar Ramanlal Shah, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Seikh, Jai Prakash Agrawal
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Patent number: 7327758Abstract: To better utilize the variable bandwidth of wireless links, a network node in accordance with the present invention escapes rigid bandwidth hierarchy of conventional TDM protocols, which is not suited for fully using the available bandwidth of a wireless link. Specifically, many embodiments of the present invention use TDM frames that have payloads, which do not strictly conform to the bandwidth hierarchy of conventional TDM protocols. For example, many embodiments of the present invention form TDM frames having a payload that is a non-integer multiple of a base bandwidth, such as OC-1/STS-1.Type: GrantFiled: December 17, 2001Date of Patent: February 5, 2008Inventors: Addepalli Sateesh Kumar, Chandrasekaran Nageswara Gupta, Tushar Ramanlal Shah, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Seikh, Jai Prakash Agrawal
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Patent number: 7295065Abstract: A Doherty amplifier that includes a main amplifier device and an auxiliary amplifier device. The main amplifier device includes a plurality of independently controllable amplifier segments. The system further includes a coupler for coupling an input signal to each of the main amplifier device and the auxiliary amplifier device. The system further includes an impedance inverter for power combining an output signal of the main amplifier device with an output signal of the auxiliary amplifier device.Type: GrantFiled: November 18, 2004Date of Patent: November 13, 2007Assignee: Beecem Communications Inc.Inventors: Tushar Ramanlal Shah, Gerald K. Wong, Korhan Titizer
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Patent number: 7295074Abstract: A Doherty power amplifier is provided that includes a main amplifier device and an auxiliary amplifier device. The Doherty power amplifier further includes a phase compensation network. The phase compensation network is configured to maintain a substantially constant phase of one of an output signal from the main amplifier device or an output signal from the auxiliary amplifier device across a range of input powers. The Doherty power amplifier further includes an impedance inverter for power combining an output signal of the main amplifier device with an output signal of the auxiliary amplifier device.Type: GrantFiled: March 31, 2005Date of Patent: November 13, 2007Assignee: Beceem Communications Inc.Inventors: Gerald K. Wong, Tushar Ramanlal Shah, Korhan Titizer
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Patent number: 7173927Abstract: The versatility provided by network nodes in accordance with the present invention allows the formation of networks using different types of links, links with differing bandwidth, data rates, and bit error rates, as well as both asymmetric and symmetric links. For example, a network can include a first network node coupled to a second network node with a wireless link. The network can include a third network node coupled to the second network node an optical link and coupled to the first network node by a wireless link. A fourth network node can be easily inserted between the third network node and the third network node using wireless links. The optical link between the second and third network nodes can operate at one bandwidth and the various wireless links would operate at other bandwidths depending on the environmental conditions between each pair of nodes.Type: GrantFiled: December 17, 2001Date of Patent: February 6, 2007Assignee: Raza Microelectronics, Inc.Inventors: Addepalli Sateesh Kumar, Tushar Ramanlal Shah, Chandrasekaran Nageswara Gupta, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Seikh, Jai Prakash Agrawal
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Patent number: 7165102Abstract: To provide the quality and reliability of a fiber optic link over a wireless link, network nodes in accordance with the present invention include a link quality management unit, which controls multiple transmission parameters of a wireless interface in response variable link conditions. For example, the link quality management unit of one embodiment of the present invention controls transmission power, modulation, and error correction. In general, a receiving network node provides feedback to a transmitting network node. Thus, in many embodiments of the present invention, the link quality management unit includes a signal quality detector, which measures a signal quality value, such as bit error rate, signal to noise ratio, or error vector magnitude. The measured signal quality is transmitted back to the transmitting node so that appropriate changes can be made to the transmission parameters.Type: GrantFiled: December 17, 2001Date of Patent: January 16, 2007Assignee: Raza Microelectronics, Inc.Inventors: Tushar Ramanlal Shah, Chandrasekaran Nageswara Gupta, Addepalli Sateesh Kumar, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Seikh, Hari Sarvotham Nallan Chakravarthula, Jai Prakash Agrawal
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Publication number: 20020075869Abstract: To provide better quality of service, Network nodes in accordance with the present invention use a media abstraction unit to integrate link-layer management with network layer traffic management. Various transmission parameters are modified in response to changing environmental factors. The modification of the transmission parameters changes the available bandwidth of the wireless link. In accordance with some embodiments of the present invention, the available bandwidth of the wireless link is used at network layer traffic management. Specifically in one embodiment of the present invention, the amount low priority data packet within a TDM data frame is altered to use the available bandwidth.Type: ApplicationFiled: December 17, 2001Publication date: June 20, 2002Inventors: Tushar Ramanlal Shah, Addepalli Sateesh Kumar, Chandrasekaran Nageswara Gupta, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Sheikh, Jai Prakash Agrawal
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Publication number: 20020075854Abstract: The versatility provided by network nodes in accordance with the present invention allows the formation of networks using different types of links, links with differing bandwidth, data rates, and bit error rates, as well as both asymmetric and symmetric links. For example, a network can include a first network node coupled to a second network node with a wireless link. The network can include a third network node coupled to the second network node an optical link and coupled to the first network node by a wireless link. A fourth network node can be easily inserted between the third network node and the third network node using wireless links. The optical link between the second and third network nodes can operate at one bandwidth and the various wireless links would operate at other bandwidths depending on the environmental conditions between each pair of nodes.Type: ApplicationFiled: December 17, 2001Publication date: June 20, 2002Inventors: Addepalli Sateesh Kumar, Tushar Ramanlal Shah, Chandrasekaran Nageswara Gupta, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Sheikh, Jai Prakash Agrawal
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Publication number: 20020075834Abstract: To provide the quality and reliability of a fiber optic link over a wireless link, network nodes in accordance with the present invention include a link quality management unit, which controls multiple transmission parameters of a wireless interface in response variable link conditions. For example, the link quality management unit of one embodiment of the present invention controls transmission power, modulation, and error correction. In general, a receiving network node provides feedback to a transmitting network node. Thus, in many embodiments of the present invention, the link quality management unit includes a signal quality detector, which measures a signal quality value, such as bit error rate, signal to noise ratio, or error vector magnitude. The measured signal quality is transmitted back to the transmitting node so that appropriate changes can be made to the transmission parameters.Type: ApplicationFiled: December 17, 2001Publication date: June 20, 2002Inventors: Tushar Ramanlal Shah, Chandrasekaran Nageswara, Addepalli Sateesh Kumar, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Sheikh, Hari Sarvotham Nallan Chakravarthula, Jai Prakash Agrawal
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Publication number: 20020075819Abstract: To better utilize the variable bandwidth of wireless links, a network node in accordance with the present invention escapes rigid bandwidth hierarchy of conventional TDM protocols, which is not suited for fully using the available bandwidth of a wireless link. Specifically, many embodiments of the present invention use TDM frames that have payloads, which do not strictly conform to the bandwidth hierarchy of conventional TDM protocols. For example, many embodiments of the present invention form TDM frames having a payload that is a non-integer multiple of a base bandwidth, such as OC-1/STS-1.Type: ApplicationFiled: December 17, 2001Publication date: June 20, 2002Inventors: Addepalli Sateesh Kumar, Chandrasekaran Nageswara Gupta, Tushar Ramanlal Shah, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Sheikh, Jai Prakash Agrawal
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Publication number: 20020075542Abstract: To more fully utilize the available bandwidth of a network link, network nodes in accordance with the present invention allow TDM data to be combined with packet data. A Packet/TDM cross connect switch, having both a TDM switch and a packet switch, is used in these embodiments. Data packets are transformed into TDM packet columns. The TDM packet columns are combined with standard TDM data columns in the payload of a TDM data frame. Data packets may be sorted based on a priority scheme, in which high priority data packets are given precedence over lower priority data.Type: ApplicationFiled: December 17, 2001Publication date: June 20, 2002Inventors: Addepalli Sateesh Kumar, Chandrasekaran Nageswara Gupta, Tushar Ramanlal Shah, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Sheikh, Jai Prakash Agrawal
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Publication number: 20020075868Abstract: A network node includes a network interface, a cross connect switch coupled to the network interface, and a multi-medium network interface coupled to the cross connect switch. The multi-medium network interface includes multiple network interfaces, such as an optical interface and a wireless interface. The wireless interface could be for example an RF wireless interface or a free-space optics interface. Some embodiments of the present invention may include both an RF wireless interface and a free-space optics interface. A TDM user interface is also coupled to the cross connect switch. In some embodiments, the network interface is also a multi-medium network interface. Furthermore, some embodiments can include additional multi-medium network interfaces.Type: ApplicationFiled: December 17, 2001Publication date: June 20, 2002Inventors: Chandrasekaran Nageswara Gupta, Addepalli Sateesh Kumar, Tushar Ramanlal, Debaditya Mukherjee, Thomas Yat Chung Woo, Khalid Sheikh, Jai Prakash Agrawal