Patents by Inventor EKRAM HOSSAIN
EKRAM HOSSAIN 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: 20230328536Abstract: A wireless communication network comprises access points distributed across a geographical area and configured to wirelessly communicate with distributed user devices in the area, and a central server communicatively connected to the access points and configured to control the network. The access points are grouped, based on channel state information, to form a plurality of communication clusters each in wireless communication with a subset of the user devices in geographically proximal location thereto, and each communication cluster and its subset of user devices forms a subnetwork. The subnetworks are arranged for wireless communication in nonoverlapping portions of the geographical area. The access points of a common subnetwork are configured to wirelessly exchange data with the subnetwork’s user devices using a common frequency range. Each communication cluster comprises an edge computing device formed by one or more of the access points belonging thereto and configured to exchange data with the server.Type: ApplicationFiled: January 24, 2023Publication date: October 12, 2023Inventors: YASSER AL-ERYANI, EKRAM HOSSAIN
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Patent number: 11405240Abstract: A method for receiving, at a communications station which has a plurality of antennas, messages from a plurality of users in wireless communication with the communications station, comprising the steps of: (i) receiving, from the users, using the plurality of antennas, time-slotted information chunks formed from the messages of the users, wherein the information chunks are free of any encoded user-identifiers representative of the users transmitting the messages; (ii) after receiving all of the information chunks, estimating vectors representative of respective communication channels between the antennas and the users based on the received information chunks; (iii) grouping the information chunks based on the estimated vectors to form clusters of the information chunks respectively associated with the users; and (iv) recovering the messages of the users from the clusters of the information chunks.Type: GrantFiled: August 11, 2021Date of Patent: August 2, 2022Assignee: UNIVERSITY OF MANITOBAInventors: Faouzi Bellili, Amine Mezghani, Volodymyr Shyianov, Ekram Hossain
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Publication number: 20220052883Abstract: A method for receiving, at a communications station which has a plurality of antennas, messages from a plurality of users in wireless communication with the communications station, comprising the steps of: (i) receiving, from the users, using the plurality of antennas, time-slotted information chunks formed from the messages of the users, wherein the information chunks are free of any encoded user-identifiers representative of the users transmitting the messages; (ii) after receiving all of the information chunks, estimating vectors representative of respective communication channels between the antennas and the users based on the received information chunks; (iii) grouping the information chunks based on the estimated vectors to form clusters of the information chunks respectively associated with the users; and (iv) recovering the messages of the users from the clusters of the information chunks.Type: ApplicationFiled: August 11, 2021Publication date: February 17, 2022Inventors: FAOUZI BELLILI, AMINE MEZGHANI, VOLODYMYR SHYIANOV, EKRAM HOSSAIN
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Patent number: 10310580Abstract: An apparatus may include detection circuitry configured to detect a presence of a host clock signal on a host clock line, and detect a level of a host supply voltage upon detection of the host clock signal. The detection circuitry may configure a core regulator in a regulation mode or in a bypass mode based on the detected level of the host supply voltage. Additionally, components of analog circuitry of a non-volatile memory system may be partitioned into different supply voltage domains, with those components active during a sleep state receiving one supply voltage and those components inactive during the sleep state receiving a different supply voltage.Type: GrantFiled: October 9, 2015Date of Patent: June 4, 2019Assignee: SanDisk Technologies LLCInventors: Steve Xiaofeng Chi, Ekram Hossain Bhuiyan
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Publication number: 20170102754Abstract: An apparatus may include detection circuitry configured to detect a presence of a host clock signal on a host clock line, and detect a level of a host supply voltage upon detection of the host clock signal. The detection circuitry may configure a core regulator in a regulation mode or in a bypass mode based on the detected level of the host supply voltage. Additionally, components of analog circuitry of a non-volatile memory system may be partitioned into different supply voltage domains, with those components active during a sleep state receiving one supply voltage and those components inactive during the sleep state receiving a different supply voltage.Type: ApplicationFiled: October 9, 2015Publication date: April 13, 2017Applicant: SanDisk Technologies Inc.Inventors: Steve Xiaofeng Chi, Ekram Hossain Bhuiyan
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Patent number: 9483096Abstract: A data storage device includes a non-volatile memory and a host interface. A method includes supplying a first supply voltage to the host interface during a first mode of operation of the non-volatile memory. The method further includes supplying a second supply voltage to the host interface in response to a transition from the first mode of operation to a second mode of operation of the non-volatile memory.Type: GrantFiled: December 6, 2013Date of Patent: November 1, 2016Assignee: SANDISK TECHNOLOGIES LLCInventors: Ekram Hossain Bhuiyan, Steve Xiaofeng Chi
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Patent number: 9444455Abstract: A data storage device includes a signal source. A load is responsive to the signal source. A method includes adjusting an impedance of the load to reduce an impedance mismatch between the signal source and the load.Type: GrantFiled: December 10, 2013Date of Patent: September 13, 2016Assignee: SANDISK TECHNOLOGIES LLCInventors: Ekram Hossain Bhuiyan, Steve Xiaofeng Chi
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Patent number: 9189163Abstract: A data storage device includes a memory and a controller. A method includes calibrating a first portion of the interface in response to a first bit transition from a first bit value to a second bit value of data to be sent via the interface.Type: GrantFiled: December 10, 2013Date of Patent: November 17, 2015Assignee: SANDISK TECHNOLOGIES INC.Inventor: Ekram Hossain Bhuiyan
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Publication number: 20150169042Abstract: A data storage device includes an interface. A method includes charging a voltage at a node of the interface using a first supply voltage. The method further includes partially discharging the voltage to a voltage supply node of the data storage device. The voltage supply node is associated with a second supply voltage.Type: ApplicationFiled: December 16, 2013Publication date: June 18, 2015Applicant: Sandisk Technologies Inc.Inventor: EKRAM HOSSAIN BHUIYAN
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Publication number: 20150162909Abstract: A data storage device includes a signal source. A load is responsive to the signal source. A method includes adjusting an impedance of the load to reduce an impedance mismatch between the signal source and the load.Type: ApplicationFiled: December 10, 2013Publication date: June 11, 2015Applicant: SANDISK TECHNOLOGIES INC.Inventors: EKRAM HOSSAIN BHUIYAN, STEVE XIAOFENG CHI
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Publication number: 20150160866Abstract: A data storage device includes a memory and a controller. A method includes calibrating a first portion of the interface in response to a first bit transition from a first bit value to a second bit value of data to be sent via the interface.Type: ApplicationFiled: December 10, 2013Publication date: June 11, 2015Applicant: SANDISK TECHNOLOGIES INC.Inventor: EKRAM HOSSAIN BHUIYAN
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Publication number: 20150160706Abstract: A data storage device includes a non-volatile memory and a host interface. A method includes supplying a first supply voltage to the host interface during a first mode of operation of the non-volatile memory. The method further includes supplying a second supply voltage to the host interface in response to a transition from the first mode of operation to a second mode of operation of the non-volatile memory.Type: ApplicationFiled: December 6, 2013Publication date: June 11, 2015Applicant: Sandisk Technologies Inc.Inventors: EKRAM HOSSAIN BHUIYAN, STEVE XIAOFENG CHI
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Patent number: 9007908Abstract: A system and method for remote and mobile patient monitoring service is provided using heterogeneous wireless access in which each patient is equipped with a remote monitoring device with a heterogeneous wireless transceiver. This can be a value-added service provided by a Healthcare service provider (i.e., a hospital or healthcare center) for which the Healthcare service provider can pay to the wireless network service provider (i.e., a network operator). With heterogeneous wireless access, a remote/mobile patient can use different types of wireless technologies (e.g., WiMAX-based WMAN and WiFi-based WLAN technologies) to transfer monitored bio-signal data to the healthcare center. The monitoring device can buffer and then transmit the bio-signal data to the healthcare center through the heterogeneous radio access network. In this device, there can be two buffers used to store bio-signal data, each with different priority. The scheduler in this device can make an optimal decision on data transmission.Type: GrantFiled: October 5, 2009Date of Patent: April 14, 2015Assignee: Telecommunications Research LaboratoriesInventors: Dusit Niyato, Abu Zafar Ekram Hossain, Sergio Guido Camorlinga
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Patent number: 8976763Abstract: A guaranteed time slot allocation scheme is provided for the IEEE 802.15.4 standard for use in wireless personal area networks having sensor devices to overcome bandwidth under-utilization for time-critical or delay-sensitive data transmissions. A fractional knapsack problem is formulated to obtain optimal guaranteed time slot allocation with which a minimum bandwidth requirement is guaranteed for the sensor devices.Type: GrantFiled: December 21, 2010Date of Patent: March 10, 2015Assignee: Telecommunications Research LaboratoriesInventors: Bharat Shrestha, Abu Zafar Ekram Hossain, Sergio Guido Camorlinga, Rajagopalan Krishnamoorthy, Dusit Niyato
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Patent number: 8786359Abstract: In an embodiment, a circuit is disclosed that includes a current mirror including a first transistor pair and a second transistor pair. The first transistor pair includes a first transistor and a second transistor. The second transistor pair includes cascode transistors. The circuit also includes an operational amplifier having an output coupled to both the first transistor and the second transistor.Type: GrantFiled: December 12, 2007Date of Patent: July 22, 2014Assignee: Sandisk Technologies Inc.Inventor: Ekram Hossain Bhuiyan
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Publication number: 20110158206Abstract: A guaranteed time slot allocation scheme is provided for the IEEE 802.15.4 standard for use in wireless personal area networks having sensor devices to overcome bandwidth under-utilization for time-critical or delay-sensitive data transmissions. A fractional knapsack problem is formulated to obtain optimal guaranteed time slot allocation with which a minimum bandwidth requirement is guaranteed for the sensor devices.Type: ApplicationFiled: December 21, 2010Publication date: June 30, 2011Inventors: Bharat Shrestha, Abu Zafar Ekram Hossain, Sergio Guido Camorlinga, Rajagopalan Krishnamoorthy, Dusit Niyato
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Patent number: 7859134Abstract: A method for operating an electronic product having an application specific semiconductor circuit (ASIC) including in its circuitry both a linear regulator module for use with an optional external capacitance and a capless regulator module coupled to internal capacitance of the product selects a low-power sub-module or high-power sub-module of the capless regulator module for use in a power-up phase of the ASIC. Control logic of the ASIC determines if an external capacitance is present. If so, then the high-power capless sub-module is used during a power-up phase of the ASIC; if not only the low-power capless sub-module is used during the power-up phase of the ASIC. After power-up of the ASIC, the control logic may select the linear regulator module for certain times of operation and the capless regulator module for other times of operation or it may select one or the other for all times of post-power-up operation.Type: GrantFiled: December 21, 2007Date of Patent: December 28, 2010Assignee: SanDisk CorporationInventors: Steve X. Chi, Yongliang Wang, Ekram Hossain Bhuiyan, Daniel P. Nguyen, Vincent Anthony Condito, Po-Shen Lai
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Publication number: 20100145161Abstract: A system and method for remote and mobile patient monitoring service is provided using heterogeneous wireless access in which each patient is equipped with a remote monitoring device with a heterogeneous wireless transceiver. This can be a value-added service provided by a Healthcare service provider (i.e., a hospital or healthcare center) for which the Healthcare service provider can pay to the wireless network service provider (i.e., a network operator). With heterogeneous wireless access, a remote/mobile patient can use different types of wireless technologies (e.g., WiMAX-based WMAN and WiFi-based WLAN technologies) to transfer monitored bio-signal data to the healthcare center. The monitoring device can buffer and then transmit the bio-signal data to the healthcare center through the heterogeneous radio access network. In this device, there can be two buffers used to store bio-signal data, each with different priority. The scheduler in this device can make an optimal decision on data transmission.Type: ApplicationFiled: October 5, 2009Publication date: June 10, 2010Inventors: Dusit Niyato, Abu Zafar Ekram Hossain, Sergio Guido Camorlinga
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Publication number: 20090160423Abstract: An electronic product includes an application specific semiconductor circuit (ASIC) including in its circuitry both a linear regulator module for use with an optional external capacitance and a capless regulator module coupled to internal capacitance of the product. The capless regulator module includes both a low-power sub-module and a high-power sub-module. Control logic of the ASIC is configured to determine if an external capacitance is present. If so, the control logic causes the high-power capless regulator sub-module to be used during a power-up phase of the ASIC; if not, only the low-power capless regulator sub-module is used during the power-up phase of the ASIC. After power-up of the ASIC, the control logic may select the linear regulator module for certain times of operation and the capless regulator module for other times of operation or it may select one or the other for all times of post-power-up operation.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Inventors: Steve X. Chi, Yongliang Wang, Ekram Hossain Bhuiyan, Daniel P. Nguyen, Vincent Anthony Condito, Po-Shen Lai
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Publication number: 20090164807Abstract: A method for operating an electronic product having an application specific semiconductor circuit (ASIC) including in its circuitry both a linear regulator module for use with an optional external capacitance and a capless regulator module coupled to internal capacitance of the product selects a low-power sub-module or high-power sub-module of the capless regulator module for use in a power-up phase of the ASIC. Control logic of the ASIC determines if an external capacitance is present. If so, then the high-power capless sub-module is used during a power-up phase of the ASIC; if not only the low-power capless sub-module is used during the power-up phase of the ASIC. After power-up of the ASIC, the control logic may select the linear regulator module for certain times of operation and the capless regulator module for other times of operation or it may select one or the other for all times of post-power-up operation.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Inventors: Steve X. Chi, Yongliang Wang, Ekram Hossain Bhuiyan, Daniel P. Nguyen, Vincent Anthony Condito, Po-Shen Lai