Patents by Inventor Prasanna Desai

Prasanna Desai 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).

  • Patent number: 9618600
    Abstract: Angle of arrival and/or range estimation within a wireless communication device. Appropriate processing of communications received by a wireless communication device is performed to determine the angle of arrival of the communication (e.g., with respect to some coordinate basis of the wireless communication device). Also, appropriate processing of the communications may be performed in accordance with range estimation as performed by the wireless communication device to determine the distance between the transmitting and receiving wireless communication devices. There are two separate modes of packet processing operations that may be performed: (1) when contents of the received packet are known, and (2) when contents of the received packet are unknown. The wireless communication device includes a number of antenna, and a switching mechanism switches from among the various antennae capitalizing on the spatial diversity of the antennae to generate a multi-antenna signal.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: April 11, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd
    Inventors: Prasanna Desai, Brima B. Ibrahim, Siukai Mak
  • Publication number: 20170090784
    Abstract: A device includes a memory device and a controller. The controller is coupled to the memory device. The controller is configured to, in response to receiving a request to perform a memory access at the memory device, determine that the memory device has a characteristic indicative of a temperature crossing. The controller is also configured to, in response to determining that the memory device has the characteristic indicative of the temperature crossing, determine that the memory device satisfies an availability criterion. The controller is further configured to, in response to determining that the memory device satisfies the availability criterion, increase a temperature of the memory device by performing memory operations on the memory device until detecting a condition related to the temperature.
    Type: Application
    Filed: August 2, 2016
    Publication date: March 30, 2017
    Inventors: PHILIP DAVID REUSSWIG, NIAN NILES YANG, GRISHMA SHAH, DEEPAK RAGHU, PREETI YADAV, PRASANNA DESAI SUDHIR RAO, SMITA AGGARWAL, DANA LEE
  • Publication number: 20170091015
    Abstract: A device includes a memory device and a controller. The memory device includes read/write circuitry and a plurality of memory dies. The controller is coupled to the memory device. The controller is configured to, responsive to determining that at least one storage element of a first die of the plurality of memory dies has a characteristic indicative of an aging condition, increase the temperature of the first die by performing memory operations on the first die until detecting a condition related to the temperature.
    Type: Application
    Filed: September 28, 2015
    Publication date: March 30, 2017
    Inventors: PREETI YADAV, PRASANNA DESAI SUDHIR RAO, SMITA AGGARWAL, DANA LEE
  • Publication number: 20170090822
    Abstract: A device includes a memory device and a controller. The controller is coupled to the memory device. The controller is configured to, in response to receiving a request to perform a memory access at the memory device, determine that the memory device has a characteristic indicative of a temperature crossing. The controller is also configured to, in response to the determination, increase a temperature of the memory device by performing memory operations on the memory device until detecting a condition related to the temperature.
    Type: Application
    Filed: March 4, 2016
    Publication date: March 30, 2017
    Inventors: Preeti Yadav, Prasanna Desai Sudhir Rao, Smita Aggarwal, Dana Lee
  • Patent number: 9577699
    Abstract: A method includes determining that an antenna shared between a Bluetooth transceiver and a WLAN transceiver is available to the WLAN transceiver based on an activity signal associated with the Bluetooth transceiver. Access to the shared antenna is provided to the WLAN transceiver based on the determination, and the WLAN transceiver is configured to use diversity in transacting WLAN signals via a plurality of antennas, including the shared antenna. Access to the shared antenna is transferred from the WLAN transceiver to the Bluetooth transceiver based on the activity signal.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: February 21, 2017
    Assignee: Broadcom Corporation
    Inventors: Brima Ibrahim, Prasanna Desai, Mark Gonikberg
  • Patent number: 9572176
    Abstract: Certain embodiments of the invention may be found in a method and system for antenna and radio front-end topologies for a system-on-a-chip (SOC) device that combines Bluetooth and IEEE 802.11 b/g WLAN technologies. A single chip radio device that supports WLAN and Bluetooth technologies receives a WLAN signal in a WLAN processing circuitry of the radio front-end and in a Bluetooth processing circuitry of the radio front-end. Signals generated by the WLAN processing circuitry and the Bluetooth processing circuitry from the received WLAN signal may be combined in a diversity combiner that utilizes selection diversity gain combining or maximal ratio combining (MRC). When a generated signal is below a threshold value, the signal may be dropped from the combining operation. A single antenna usage model may be utilized with the single chip radio device front-end topology to support WLAN and Bluetooth communications.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: February 14, 2017
    Assignee: Broadcom Corporation
    Inventors: Prasanna Desai, Brima Babatunde Ibrahim
  • Patent number: 9565548
    Abstract: Methods and systems for enabling coexistence of multiple potentially interfering wireless components in a device are provided. A device may include a wireless module using a proprietary protocol and one or more modules using standardized protocols. The device further includes a coexistence arbitration module configured to arbitrate access to a shared communication medium among the wireless modules based on assertion of medium access requests by the modules and the associated priority of the asserted medium access requests. When multiple medium access requests have the same priority, precedence for access to the shared medium is determined based on additional criteria. The coexistence arbitration module may be a separate module or may be integrated into another module or distributed among the modules. The device may include a host processor for altering transmission characteristics of a module to increase the likelihood that another module can receive data within a reasonable time period.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: February 7, 2017
    Assignee: BROADCOM CORPORATION
    Inventors: Prasanna Desai, Kelly Coffey, Robert Hulvey, Mark Gonikberg
  • Patent number: 9504056
    Abstract: A method and system for sharing a single antenna on platforms with collocated Bluetooth and IEEE 802.11 b/g devices are provided. A single antenna may be utilized for communication of Bluetooth HV3 frame traffic and wireless local area network (WLAN) communication based on a time multiplexing approach. At least one antenna switch may be utilized to configure an antenna system to enable Bluetooth and WLAN coexistence via the single antenna. Configuration signals may be generated by a Bluetooth radio device and/or by a WLAN radio device to configure the antenna system. A default configuration for the antenna system may provide WLAN communication between a station and a WLAN access point until Bluetooth communication becomes a priority.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: November 22, 2016
    Assignee: Broadcom Corporation
    Inventors: Prasanna Desai, Brima Ibrahim
  • Patent number: 9408224
    Abstract: A coexistence signaling scheme for radio communications is described. In one embodiment, a method for coexistence signaling includes establishing first communications and second communications with separate access points or base stations. The method further includes determining protocol timings of the first and second communications. Based on various communications parameters, protocol timings, and identified interference conditions, the method includes generating one or more priority signals to manage the first and second communications. According to certain aspects, overlapping channel conditions can be avoided while maintaining acceptable communications data throughput.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: August 2, 2016
    Assignee: Broadcom Corporation
    Inventors: Neeraj Poojary, Prasanna Desai, Sudhir Prajapati, Sachin Gupta, Pawan Kumar, Gabriel Desjardins, Sanjay Saha
  • Patent number: 9408033
    Abstract: Hybrid location determination for wireless communication device. Various services that may be used by a wireless communication device within a particular location may be referred to as location based services (LBS). As such, means by which the location of a wireless communication device that may use such available services, within such a locale, is made by using more than one type of location determination approach. For example, a wireless communication device includes communication capability (e.g., RX and TX) in accordance with a first communication protocol (e.g., Bluetooth) and also includes a communication capability (e.g., RX only) in accordance with a second communication protocol (e.g., WiFi/WLAN (Wireless Local Area Network)). The RX capability is operative to assist in location determination for the wireless communication device based on knowledge of at least one wireless communication device that communicates with the wireless communication device.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: August 2, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Brima B. Ibrahim, Prasanna Desai, Donald L. Fuchs, Craig Ochikubo
  • Patent number: 9408147
    Abstract: A method of communicating data in a Bluetoothâ„¢ low energy (BLE) module is provided. The method includes modulating an outbound communication signal into a modulated signal with a particular modulation scheme based on a modulation type, and transmitting the modulated signal to a remote device via a wireless communication connection associated with the modulation type. The method also includes receiving an inbound radio frequency (RF) signal, determining if the inbound RF signal is associated with a modulation type, and demodulating the inbound RF signal with a particular modulation scheme based on the modulation type if the inbound RF signal is determined to be associated with a modulation type. In some aspects, the inbound RF signal and outbound modulated signal have symbol rates of 2 Megasymbols per second. In some implementations, the method includes switching between a legacy BLE system and an enhanced rate BLE system.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 2, 2016
    Assignee: Broadcom Corporation
    Inventors: Angel Polo, Farooq Muhammad Hameed, Hea Joung Kim, Ming Lin, Siukai Mak, Guoxin Xie, Thomas Baker, Prasanna Desai, Robert Hulvey, Henrik Tholstrup Jensen
  • Publication number: 20160050679
    Abstract: A device implementing a system for managing interference between collocated radios may include a first radio module, a collocated second radio module, and a host processor. The first radio module may be configured to generate a collocated radio tolerance indicator that indicates a tolerance of the first radio module to interference caused by the collocated second radio module when the collocated second radio module is transmitting, and provide the collocated radio tolerance indicator to a host processor when a second collocated radio module is transmitting. The host processor may be configured to control the second radio module based at least in part on the collocated radio tolerance indicator.
    Type: Application
    Filed: October 27, 2015
    Publication date: February 18, 2016
    Inventors: Prasanna DESAI, Siukai MAK
  • Patent number: 9265089
    Abstract: A circuit includes a first wireless interface circuit that transceives packetized data between a host module and a first external device in accordance with a first wireless communication protocol, wherein the first wireless protocol carries wireless telephony data for communication with a wireless telephony network. A second wireless interface circuit transceives packetized data between the host module and a second external device in accordance with a second wireless communication protocol. The second wireless interface circuit includes at least one module that is shared with first wireless interface circuit. The first wireless interface circuit and the second wireless interface circuit operate in accordance with a wireless interface schedule that includes a first time interval where the first wireless interface device and the second wireless interface device contemporaneously use the at least one module.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: February 16, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Mark Gonikberg, Prasanna Desai, Brima B. Ibrahim
  • Patent number: 9241368
    Abstract: Disclosed are various embodiments for providing wireless communication. A Bluetooth (BT) communication protocol and a Wireless Local Area Network (WLAN) communication protocol are enabled in a station. A WLAN fragmentation threshold utilized by the WLAN communication protocol is modified based on a WLAN modulation rate and an HV3 frame duration that is utilized by the BT communication protocol.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: January 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Prasanna Desai, Brima Ibrahim
  • Patent number: 9203572
    Abstract: A device implementing a system for managing interference between collocated radios may include a first radio module, a collocated second radio module, and a host processor. The first radio module may be configured to generate a collocated radio tolerance indicator that indicates a tolerance of the first radio module to interference caused by the collocated second radio module when the collocated second radio module is transmitting, and provide the collocated radio tolerance indicator to a host processor when a second collocated radio module is transmitting. The host processor may be configured to control the second radio module based at least in part on the collocated radio tolerance indicator.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: December 1, 2015
    Assignee: Broadcom Corporation
    Inventors: Prasanna Desai, Siukai Mak
  • Patent number: 9197332
    Abstract: In collocated radios, interference is mitigated to permit concurrent radio operation. In response to detection of imminent transmission of interfering wireless (i.e., RF jammer) signals, gain settings of one or more stages of front-end receiver amplifiers may be quickly configured to permit concurrent frequency division operation instead of consecutive time-division operation. This expansion of concurrent operation may improve communication bandwidth and/or may produce reliable, consistent results. Gain control responsive to detection of imminent RF jamming may maintain amplification in a linear range where interference can be filtered out. Receiver gain may be shifted from a default high gain or high sensitivity setting to lower gain to maintain integrity of a signal of interest (SoI), which avoids clipping, distortion and unwanted products caused by a high power jamming signal that could otherwise make it impossible to recover the SoI.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: November 24, 2015
    Assignee: Broadcom Corporation
    Inventors: Prasanna Desai, Gabriel Desjardins, Vincent Roussel
  • Publication number: 20150334727
    Abstract: A coexistence signaling scheme for radio communications is described. In one embodiment, a method for coexistence signaling includes establishing first communications and second communications with separate access points or base stations. The method further includes determining protocol timings of the first and second communications. Based on various communications parameters, protocol timings, and identified interference conditions, the method includes generating one or more priority signals to manage the first and second communications. According to certain aspects, overlapping channel conditions can be avoided while maintaining acceptable communications data throughput.
    Type: Application
    Filed: July 29, 2015
    Publication date: November 19, 2015
    Inventors: Neeraj POOJARY, Prasanna DESAI, Sudhir PRAJAPATI, Sachin GUPTA, Pawan KUMAR, Gabriel DESJARDINS, Sanjay SAHA
  • Publication number: 20150305031
    Abstract: Various methods and systems are provided for time domain coexistence of RF signals. In one example, among others, a method includes obtaining access to a WLAN channel during a free period of a coexisting cellular connection, providing a RDG to allow another device to transmit for a duration corresponding to at least a portion of a TXOP, and receiving a transmission during the duration. In another example, a method includes obtaining access to a WLAN channel during a transmission period of a coexisting cellular connection and providing a protection frame to defer transmissions from another device for a duration corresponding to at least a portion of a TXOP. In another example, a method includes determining a shift of a BT transaction based at least in part upon a schedule of cellular communications and shifting at least a portion of the BT transaction based upon the determined shift.
    Type: Application
    Filed: June 26, 2015
    Publication date: October 22, 2015
    Inventors: Sudhirkumar Prajapati, Payel Banerjee, Asish Makkattil Ratnan, Nethi Kashi Viswanath, Sachin Gupta, Neeraj Poojary, Yury Gonikberg, Mark Gonikberg, Matthew Fischer, Kamesh Medapalli, Florin Baboescu, Steven Hall, Shawn Ding, Prasanna Desai, Knut Terje Hermod Odman, Sanjay Saha
  • Patent number: 9131446
    Abstract: Collaborative coexistence of co-located mobile WiMAX, wireless LAN, and/or Bluetooth radios. Within a communication device that includes multi-protocol communication capability, the various radio modules included within such a communication device operate cooperatively such that collisions are avoided between those various radios. When a first of the radio modules operates as governed by a relatively rigid frame structure, a second of the radio modules capitalizes upon that predetermined nature (of the relatively rigid frame structure) to support communication during times in which that first radio module has a lower level of activity (e.g., turned off completely, within a power savings mode, in a sleep mode, etc.). The radio module operation is performed within a time-orthogonal manner, such that multiple radio modules are not attempting to transmit or receive simultaneously.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: September 8, 2015
    Assignee: Broadcom Corporation
    Inventor: Prasanna Desai
  • Patent number: 9131519
    Abstract: A coexistence signaling scheme for radio communications is described. In one embodiment, a method for coexistence signaling includes establishing first communications and second communications with separate access points or base stations. The method further includes determining protocol timings of the first and second communications. Based on various communications parameters, protocol timings, and identified interference conditions, the method includes generating one or more priority signals to manage the first and second communications. According to certain aspects, overlapping channel conditions can be avoided while maintaining acceptable communications data throughput.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: September 8, 2015
    Assignee: Broadcom Corporation
    Inventors: Neeraj Poojary, Prasanna Desai, Sudhir Prajapati, Sachin Gupta, Pawan Kumar, Gabriel Desjardins, Sanjay Saha