Patents by Inventor Siddharth Gupta
Siddharth Gupta 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: 20190385653Abstract: Provided are a voltage control circuit including an assist circuit and a memory device including the voltage control circuit. The memory device includes: a volatile memory cell array, which is connected to a plurality of word lines and includes a memory cell including at least one transistor; and an assist circuit, which is connected to at least one of the plurality of word lines and adjusts a driving voltage level of each of the plurality of word lines, wherein the assist circuit includes a diode N-channel metal oxide semiconductor (NMOS) transistor having a gate and a drain connected to each other.Type: ApplicationFiled: August 29, 2019Publication date: December 19, 2019Inventors: Sang-Yeop BAECK, Siddharth Gupta, ln-hak Lee, Jae-seung Choi, Tae-hyung Kim, Dae-young Moon, Dong-wook Seo
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Patent number: 10446219Abstract: According to one embodiment, a memory device is described including a memory array including a plurality of memory cells wherein each memory cell is coupled to a control line, a memory assist circuit configured to, when activated, apply a reduction of a voltage of the control line, a signal generator configured to generate a signal representing at least one of a process corner of the memory device, a supply voltage of the memory device, a temperature of the memory device and an aging of the memory device, a signal processing circuit configured to amplify the signal and a controller configured to activate the memory assist circuit based the amplified signal.Type: GrantFiled: December 20, 2017Date of Patent: October 15, 2019Assignee: Infineon Technologies AGInventors: Siddharth Gupta, Gunther Lehmann
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Patent number: 10431272Abstract: Provided are a voltage control circuit including an assist circuit and a memory device including the voltage control circuit. The memory device includes: a volatile memory cell array, which is connected to a plurality of word lines and includes a memory cell including at least one transistor; and an assist circuit, which is connected to at least one of the plurality of word lines and adjusts a driving voltage level of each of the plurality of word lines, wherein the assist circuit includes a diode N-channel metal oxide semiconductor (NMOS) transistor having a gate and a drain connected to each other.Type: GrantFiled: March 15, 2018Date of Patent: October 1, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-yeop Baeck, Siddharth Gupta, In-hak Lee, Jae-seung Choi, Tae-hyung Kim, Dae-young Moon, Dong-wook Seo
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Patent number: 10345575Abstract: An electrowetting display device comprises electrowetting pixels. Each of the electrowetting pixels includes a hydrophobic layer portion disposed on a first electrode, an electrolyte solution overlying the hydrophobic layer, and a thin film transistor (TFT) that is switched on to select each of the electrowetting pixels using active matrix addressing, wherein the TFT is in electrical contact with the first electrode. The electrowetting display further includes a second electrode in electrical contact with the electrowetting pixels, and a reset control circuit in electrical contact with the second electrode to provide a reset pulse in unison to the electrowetting pixels.Type: GrantFiled: November 25, 2014Date of Patent: July 9, 2019Assignee: Amazon Technologies, Inc.Inventors: Jack Shih-Chieh Wei, Siddharth Gupta, Robert Waverly Zehner
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Patent number: 10288974Abstract: An electronic device with a flexible display subassembly is provided. The display stack may use two layers of adhesives having different elastic properties to improve mechanical impact resistance, with a first adhesive layer made of a viscoelastic material and a second adhesive layer having a low modulus of elasticity. The display stack may also include a hot melt protective sheet (HMPS) covering the display subassembly. The HMPS may be wrapped around the two side edges of a rigid substrate to attach directly to the substrate, thereby aiding in the adhesion of the display stack to the substrate. The display stack may also includes a patterned back protective sheet in which the protective backing layer is removed along the curved portions of the display stack.Type: GrantFiled: August 31, 2016Date of Patent: May 14, 2019Assignee: AMAZON TECHNOLOGIES, INC.Inventors: Weihsin Hou, Robert Arthur Sprague, Chin Siong Khor, Siddharth Gupta
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Patent number: 10288973Abstract: A borderless display utilizes a support frame having a bulged periphery (or outer portion), and a flexible electrophoretic display (EPD) structure that is curved at least partly around the support frame. The bulged outer portion of the support frame allows the flexible EPD structure to be wrapped around the outer portion of the support frame without damaging elements of the EPD structure in the process. Meanwhile, the center portion of the support frame can be made thinner, as compared to the thickness of the support frame at the bulged, outer portion. In this manner, the overall profile (in the z-direction) of the electronic device can be made as thin as possible without damaging fragile elements in the EPD structure.Type: GrantFiled: July 21, 2016Date of Patent: May 14, 2019Assignee: Amazon Technologies, Inc.Inventors: Siddharth Gupta, Vikram Srinivas, Robert Arthur Sprague, Wilfrido Loor Canizares
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Patent number: 10290283Abstract: A content item to be displayed via a display of an electronic device may be associated with a first set of grey values or a set of color values. The electronic device may generate, maintain, or at least have access to one or more mappings that map the set of color values and/or the first set of grey values to a second set of grey values. Based on the one or more mappings, the electronic device may convert a color value of the set of color values or a first grey value of the first set of grey values to a second grey value of the second set of grey values. The content item may then be displayed utilizing the second grey value.Type: GrantFiled: August 18, 2017Date of Patent: May 14, 2019Assignee: Amazon Technologies, Inc.Inventors: Siddharth Gupta, Jerry Yee-Ming Chung, Haili Wang, Herve Jacques Clement Letourneur, Kathryn Chinn, Nadim Awad
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Publication number: 20190136173Abstract: A perfusion apparatus as disclosed for withdrawing a fluid medium from a bioreactor during the growth of a cell culture on microcarriers within the bioreactor. Also disclosed is a method for culturing cells in a bioreactor contained on microcarriers. The perfusion apparatus includes a hollow tubular member attached to a filter member. The filter member has a pore size and volume capable of withdrawing a fluid medium at a relatively high flow rate from the bioreactor.Type: ApplicationFiled: September 28, 2018Publication date: May 9, 2019Inventors: Yonatan Levinson, Eytan Abraham, Siddharth Gupta
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Publication number: 20190080736Abstract: Provided are a voltage control circuit including an assist circuit and a memory device including the voltage control circuit. The memory device includes: a volatile memory cell array, which is connected to a plurality of word lines and includes a memory cell including at least one transistor; and an assist circuit, which is connected to at least one of the plurality of word lines and adjusts a driving voltage level of each of the plurality of word lines, wherein the assist circuit includes a diode N-channel metal oxide semiconductor (NMOS) transistor having a gate and a drain connected to each other.Type: ApplicationFiled: March 15, 2018Publication date: March 14, 2019Inventors: Sang-yeop Baeck, Siddharth Gupta, In-hak Lee, Jae-seung Choi, Tae-hyung Kim, Dae-young Moon, Dong-wook Seo
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Patent number: 10228604Abstract: Systems, methods, and computer-readable media are disclosed for borderless display stacks for use with electronic devices. In one embodiment, a display stack may include a thin film transistor (TFT) layer comprising an active area, an electrophoretic layer coupled to the TFT backplane, and an electrode coupled to a perimeter portion of the electrophoretic layer. The electrode may extend beyond peripheral edges of the electrophoretic layer. A portion of the electrode may be positioned between the electrophoretic layer and the TFT backplane, and the electrode may surround the active area. The display stack may include a cover layer coupled to the electrophoretic layer.Type: GrantFiled: September 11, 2015Date of Patent: March 12, 2019Assignee: Amazon Technologies, Inc.Inventors: Hany Mounir Ghali, Robert Arthur Sprague, Siddharth Gupta
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Patent number: 10200825Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a network device. The apparatus receives an evolved multimedia broadcast multicast service (eMBMS) data from a base station via multicast transmission. The apparatus transmits the received eMBMS data to one or more end nodes via unicast transmission. In an aspect, the one or more end nodes are connected to the network device via a local area network (LAN).Type: GrantFiled: September 11, 2014Date of Patent: February 5, 2019Assignee: QUALCOMM IncorporatedInventors: Gaurav Gopal Kathuria, Sivaramakrishna Veerepalli, Kuo-Chun Lee, Rohit Tripathi, Uppinder Singh Babbar, Siddharth Gupta
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Patent number: 10185200Abstract: A thin border display for an electronic device may comprise an optical assembly that includes a support frame and an electrophoretic display (EPD) structure attached to the support frame in a manner that allows for the display of the electronic device to exhibit a “thin border” or “borderless” look at a periphery of the electronic device. A portion of the EPD structure may at least partly curve around a curved portion of the support frame, the curved portion of the support frame being near the periphery of the support frame. In some embodiments, the EPD structure includes a transparent protective substrate disposed on a rear surface of a flexible backplane substrate within the flat outer region where a driver chip is disposed on a front surface of the flexible backplane substrate. The transparent protective substrate protects the driver chip attachment from being damaged during manufacture.Type: GrantFiled: June 23, 2016Date of Patent: January 22, 2019Assignee: Amazon Technologies, Inc.Inventors: Robert Arthur Sprague, Angeles Marcia Almanza-Workman, Wilfrido Loor Canizares, Siddharth Gupta, Vikram Srinivas
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Patent number: 10120515Abstract: Electronic devices having a display stack that includes LED light sources combined with at least one other component layer are described. In some instances, the LED light sources are coupled to a dedicated touch sensor circuit layer, which removes an entire layer from the display stack. The touch sensor circuit layer can be installed with an addition portion of flexible printed circuitry extending the length of a lightguide and the LEDs can be installed on that flex. In other instances, particularly when the touch sensor layer is deposited directly on the interior surface of the cover glass, the LEDs can also be mounted to the glass itself, thereby potentially eliminating two layers from the display stack.Type: GrantFiled: June 27, 2016Date of Patent: November 6, 2018Assignee: Amazon Technologies, Inc.Inventors: Hany Mounir Ghali, Siddharth Gupta
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Publication number: 20180252981Abstract: An electronic device includes a stack assembly and a cover glass. The stack assembly includes an electrophoretic display sub-assembly for rendering content, a front light sub-assembly comprising a light guide, a light FPC, and a plurality of light sources, and a capacitive touch sensing sub-assembly for detecting touch inputs. A yellow-pigmented tape is applied over the light sources and an edge of the light guide. A stiffener member is coupled to the light FPC opposite the yellow-pigmented tape.Type: ApplicationFiled: May 2, 2018Publication date: September 6, 2018Inventors: Siddharth Gupta, Jerry Yee-Ming Chung, Hany Mounir Ghali, Robert L.D. Zenner, Juho Ilkka Jalava, Sherman Shwe Win Tan
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Publication number: 20180248850Abstract: A communication device and method of operating the same. The method may include initiating a first connection between a client device and a proxy server application and a second connection between the proxy server application and the remote server while advertising a proxy-window-scale-value, and splicing the TCP connections below a transport layer. The method also includes left shifting a window size of a client-sourced-packet to obtain an originally intended client-window size, right shifting the originally intended client-window size by the proxy-window-scale-value, and providing the client-sourced-packet to the server with the proxy-window scaled value.Type: ApplicationFiled: November 7, 2017Publication date: August 30, 2018Inventors: Justin Tee, Rohit Tripathi, Siddharth Gupta
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Publication number: 20180174640Abstract: According to one embodiment, a memory device is described including a memory array including a plurality of memory cells wherein each memory cell is coupled to a control line, a memory assist circuit configured to, when activated, apply a reduction of a voltage of the control line, a signal generator configured to generate a signal representing at least one of a process corner of the memory device, a supply voltage of the memory device, a temperature of the memory device and an aging of the memory device, a signal processing circuit configured to amplify the signal and a controller configured to activate the memory assist circuit based the amplified signal.Type: ApplicationFiled: December 20, 2017Publication date: June 21, 2018Inventors: Siddharth Gupta, Gunther Lehmann
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Patent number: 9983455Abstract: An electronic device includes a stack assembly and a cover glass. The stack assembly includes an electrophoretic display sub-assembly for rendering content, a front light sub-assembly comprising a light guide, a light FPC, and a plurality of light sources, and a capacitive touch sensing sub-assembly for detecting touch inputs. A yellow-pigmented tape is applied over the light sources and an edge of the light guide. A stiffener member is coupled to the light FPC opposite the yellow-pigmented tape.Type: GrantFiled: December 22, 2015Date of Patent: May 29, 2018Assignee: AMAZON TECHNOLOGIES, INC.Inventors: Siddharth Gupta, Jerry Yee-Ming Chung, Hany Mounir Ghali, Robert L. D. Zenner, Juho Ilkka Jalava, Sherman Shwe Win Tan
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Publication number: 20170293194Abstract: An electronic device with a flexible display subassembly is provided. The display stack may use two layers of adhesives having different elastic properties to improve mechanical impact resistance, with a first adhesive layer made of a viscoelastic material and a second adhesive layer having a low modulus of elasticity. The display stack may also include a hot melt protective sheet (HMPS) covering the display subassembly. The HMPS may be wrapped around the two side edges of a rigid substrate to attach directly to the substrate, thereby aiding in the adhesion of the display stack to the substrate. The display stack may also includes a patterned back protective sheet in which the protective backing layer is removed along the curved portions of the display stack.Type: ApplicationFiled: August 31, 2016Publication date: October 12, 2017Inventors: Weihsin Hou, Robert Arthur Sprague, Chin Siong Khor, Siddharth Gupta
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Patent number: 9773474Abstract: A content item to be displayed via a display of an electronic device may be associated with a first set of grey values or a set of color values. The electronic device may generate, maintain, or at least have access to one or more mappings that map the set of color values and/or the first set of grey values to a second set of grey values. Based on the one or more mappings, the electronic device may convert a color value of the set of color values or a first grey value of the first set of grey values to a second grey value of the second set of grey values. The content item may then be displayed utilizing the second grey value.Type: GrantFiled: August 3, 2015Date of Patent: September 26, 2017Assignee: Amazon Technologies, Inc.Inventors: Siddharth Gupta, Jerry Yee-Ming Chung, Haili Wang, Herve Jacques Clement Letourneur, Kathryn Ann Chinn, Nadim Awad
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Publication number: 20170176835Abstract: An electronic device includes a stack assembly and a cover glass. The stack assembly includes an electrophoretic display sub-assembly for rendering content, a front light sub-assembly comprising a light guide, a light FPC, and a plurality of light sources, and a capacitive touch sensing sub-assembly for detecting touch inputs. A yellow-pigmented tape is applied over the light sources and an edge of the light guide. A stiffener member is coupled to the light FPC opposite the yellow-pigmented tape.Type: ApplicationFiled: December 22, 2015Publication date: June 22, 2017Inventors: Siddharth Gupta, Jerry Yee-Ming Chung, Hany Mounir Ghali, Robert L.D. Zenner, Juho Ilkka Jalava, Sherman Shwe Win Tan