Patents Assigned to ZT GROUP INT'L, INC.
-
Patent number: 11758684Abstract: A method and system improve the cooling of computer power supply unit by eliminating a reverse flow of hot air caused by an imbalance in airflow between a power supply fan and a system fan. The method determines a correlation between a system fan speed and a heightened power supply fan speed that prevents the reverse flow of hot air into the power supply unit. During the operation of the power supply unit, the system fan speed is obtained and the heightened power supply fan speed is determined from the correlation. The power supply fan is then controlled using the heightened power supply fan speed setting.Type: GrantFiled: June 12, 2020Date of Patent: September 12, 2023Assignee: ZT Group Int'l, Inc.Inventors: Ankit Kalani, Ting Yu Lin, Mark D. Chubb
-
Patent number: 11706892Abstract: An apparatus is provided for loading an electronic device, e.g., a populated GPU board, onto a device tray, e.g., a GPU tray, where the electronic device is cumbersome and the device tray presents obstacles that prevent simply lowering the device into the tray. The apparatus includes a dolly and a base, the base configured to position the dolly against the device tray so that the dolly, carrying the board, may slide the device into position and then be removed from beneath the device.Type: GrantFiled: June 22, 2021Date of Patent: July 18, 2023Assignee: ZT Group Int'l, Inc.Inventors: David Liang, Jun Lu
-
Patent number: 11683905Abstract: A connection mechanism is provided with a circuit board that replaces internal chassis cabling to multiple electronic devices. In use, the motion of a lever of the connection mechanism drives a carrier of the circuit board in one direction to make an electrical connection at a side of the circuit board. Continued motion of the lever drives the carrier downward to make an additional electrical connections at the bottom of the circuit board.Type: GrantFiled: June 3, 2022Date of Patent: June 20, 2023Assignee: ZT Group Int'l, Inc.Inventors: Chen An, Mahesh Kumar Varrey
-
Patent number: 11632874Abstract: An apparatus and method provide a barrier in the cooling airflow of a component of a computing device that, when the barrier is extended, impedes the airflow, thereby diverting excess cooling airflow from the component to a different component with a different flow path. In response to increased pressure from the airflow, the barrier retracts to permit a greater airflow. Embodiments respond to an increase or decrease in airflow without requiring additional control input and include barriers that deform or pivot in response to increased pressure to permit greater airflow.Type: GrantFiled: July 22, 2020Date of Patent: April 18, 2023Assignee: ZT Group Int'l, Inc.Inventors: Bo Zhang, Ting Yu Lin
-
Patent number: 11571067Abstract: An apparatus is provided for ensuring the proper orientation of an electronic device within a rack slot. A constraint is added to one of a pair of rail assemblies and a corresponding constraint is added to the rack, the pair of constraints cooperating to allow the pair of rail assemblies to be installed only in the proper sides of the rack. Mounting holes are provided on the device and inner rails of the rail assemblies that allow the inner rail assemblies to be installed only on the proper sides of the device. A key and key slot combination is then provided in an inner rail and a middle rail of one rail assembly with the combination preventing the inner rail from being fully inserted into the incorrect middle rail. Thus, the correct orientation of the device is ensured by the pair of rail assemblies, the spacing of mounting holes in the device, and the rack constraint.Type: GrantFiled: July 22, 2021Date of Patent: February 7, 2023Assignee: ZT Group Int'l, Inc.Inventors: Ryan Signer, Kapil Rao Ganta Papa Rao Bala, Rey Reyes
-
Patent number: 11490536Abstract: An elevator provides for lifting and disconnecting an electronic device from a chassis circuit board and the subsequent removal of the device from a chassis slot. A sliding element between the device and the slot includes tracks within which travel followers associated with the electronic device. Motion in a first direction the tracks causes the tracks to move with respect to the followers, raising the device away from the circuit board. In a fully raised position, the device is disconnected and may be removed from the slot. Motion in the opposite direction causes the relative motion between the track and follower to lower the device toward the circuit board. In a fully seated position, the device is connected to the circuit board.Type: GrantFiled: November 16, 2020Date of Patent: November 1, 2022Assignee: ZT Group Int'l, Inc.Inventors: Chen An, Mahesh Kumar Varrey, Son Hung Lam
-
Patent number: 11488638Abstract: An apparatus is provided for the simultaneous transferring of multiple storage devices from a chassis to reduce service time and associated server temperature fluctuations. The storage transfer device may be mounted to a chassis with a multitude of electronic devices, e.g., a JBOD with HDDs, above the devices to be removed. The storage device may then be manipulated to mechanically unlatch the devices from the chassis and simultaneously attach the devices to the transfer device. The devices may then be disconnected and withdrawn from the chassis and pulled into the storage transfer device. The devices may be re-installed later using the storage device and the reverse process.Type: GrantFiled: February 22, 2021Date of Patent: November 1, 2022Assignee: ZT Group Int'l, Inc.Inventors: Paul Harold Anderson, Jared Harlan
-
Patent number: 11445632Abstract: Embodiments promote the maintenance of a designed flow of cooling air through a chassis during the servicing of one or more electronic components contained by the chassis. A top opening created by the removal of server chassis from a rack may be significantly reduced by internal lids that provide access to groups of components. Gaps created by the partial removal of groups of components may be significantly reduced by air dams attached to the components that inhibit the flow of air between the components. And the opening created by the removal of a circuit board may be significantly reduced by a flap configured to cover the opening upon removal of the circuit board. The various embodiments may be used individually or in combination to reduce openings in the chassis that may allow air to flow in paths that negatively affect the designed air flow.Type: GrantFiled: February 17, 2021Date of Patent: September 13, 2022Assignee: ZT Group Int'l, Inc.Inventors: Chen An, Asim Huda, Ting-Yu Lin, Haiyan Luo
-
Patent number: 11419226Abstract: An interlock system is provided that limits the ability of a user or seismic event to dislodge or partially remove more than one chassis from a rack at any one time. Thus, embodiments reduce the potential for the rack to be toppled by the weight of too many chassis extending from the rack at the same time. The interlock system includes a dynamic rail with locking blocks that move to engage hooks on the rear of the chassis. A trigger at each chassis slot is depressed with installation of a chassis. Upon the removal of any chassis, the associated trigger extends and causes the dynamic rail to be pulled down into a locking position in which the locking blocks engage the hooks on the remaining chassis, which prevents their removal.Type: GrantFiled: June 18, 2021Date of Patent: August 16, 2022Assignee: ZT Group Int'l, Inc.Inventors: Harshita Guduru, Sarah Kaus, Ryan Signer
-
Patent number: 11419229Abstract: A latch includes a housing, a leaf spring, a tooth, and an actuator. Motion of the actuator against the leaf spring causes the leaf spring to deform and the tooth to extend from the housing to engage a keeper.Type: GrantFiled: May 8, 2019Date of Patent: August 16, 2022Assignee: ZT Group Int'l, Inc.Inventors: Chen An, Maheshkumar Varrey, Zichun Song
-
Patent number: 11416429Abstract: A configurable PCI card for connecting to a PCI interface is disclosed. The configurable PCI card comprises a bus interface disposed on a base card for communicatively connecting to a bus of a computing device. The configurable PCI card further comprises a bracket for physically securing the base card to the computing device. The configurable PCI card also comprises a wire layout disposed on the base card for replicating a plurality of different power and heat generation profiles that correspond to a plurality of different chipsets.Type: GrantFiled: August 5, 2016Date of Patent: August 16, 2022Assignee: ZT Group Int'l, Inc.Inventors: Ting Yu Lin, Jinfeng Meng
-
Patent number: 11373689Abstract: A carrier of an electronic device is provided with a soft stopper that may maintain the carrier at a service position within a chassis slot. As the carrier is inserted into the slot, at a determined point the soft stopper impinges upon a bumper. Further movement of the carrier into the slot requires the user to force the soft stopper to compress or flex and bypass the bumper. With the chassis slot vertically oriented the soft stopper may maintain the carrier and electronic device in service position, disconnected, while service is performed on a chassis circuit board.Type: GrantFiled: December 18, 2020Date of Patent: June 28, 2022Assignee: ZT Group Int'l, Inc.Inventors: John Woo, Chen An, Mahesh Kumar Varrey, Asim Huda
-
Patent number: 11316701Abstract: A decentralized certificate module generates a unique key pair. The decentralized certificate module creates a certificate signing request (CSR) based at least on a public key of the unique key pair. The decentralized certificate module signs the CSR with pre-installed system data to generate a signed trust certificate. The decentralized certificate module initiates a secure communication that includes the signed trust certificate.Type: GrantFiled: October 22, 2019Date of Patent: April 26, 2022Assignee: ZT Group Int'l, Inc.Inventor: Oscar Alfredo Perez
-
Patent number: 11316509Abstract: Systems and methods are described for controlling inrush current for a system comprising a plurality of metal-oxide-semiconductor field-effect transistors (MOSFETs). The system may include a control circuit coupled to parallel series of gate drivers, where each gate driver is coupled to a different MOSFET. An inrush current may be received during charging of a capacitor of the switch circuit. During a first period of a ramp time, the control circuit may cause the inrush current to pass through a first gate driver. During a second period of the ramp time, the control circuit may cause the inrush current to pass through a second gate driver. By using a control circuit to cause the inrush current to pass through each MOSFET, a gate-source threshold voltage for the MOSFETs may remain below safe operating areas (SOAs) for the different MOSFETs.Type: GrantFiled: June 19, 2020Date of Patent: April 26, 2022Assignee: ZT Group Int'l, Inc.Inventor: Yung-Tsung Hsieh
-
Patent number: 11314293Abstract: A latch includes a cam arm that follows a serpentine groove in the latch handle where curves of the groove create catch positions that define extended and retracted handle positions. In one of the handle positions, an arm of the handle abuts a toothed arm and urges the toothed arm to a latching position in which a tooth is extended. In the other handle position, the arm retracts from the toothed arm, allowing the tooth to retract.Type: GrantFiled: November 9, 2020Date of Patent: April 26, 2022Assignee: ZT Group Int'l, Inc.Inventors: Maheshkumar Varrey, Chen An, Zichun Song
-
Patent number: 11216048Abstract: A system and method for controlling cooling in a computing device are provided. A measurement of power consumption of at least one of the computer components is received. A theoretical setting for the cooling system is determined based on the received measurement of power consumption. A current setting of the cooling system is identified. Based on a difference between the theoretical setting and the current setting, a next setting for the cooling system is determined. An output of the cooling system is controlled based on the next setting for the cooling system.Type: GrantFiled: January 12, 2017Date of Patent: January 4, 2022Assignee: ZT Group Int'l, Inc.Inventors: Ting Yu Lin, Daniel Ferrone
-
Patent number: 10959348Abstract: An apparatus for bracing a face of a computer rack includes a brace mountable by hinges to one side of the face of the computer rack. A latch is mountable to the other side of the face of the computer rack. When the brace is closed against the face of the rack, the latch may be closed to capture elements of the brace and thereby provide rigidity to the face of the computer rack.Type: GrantFiled: November 28, 2018Date of Patent: March 23, 2021Assignee: ZT Group Int'l, Inc.Inventors: Kevin R. Qualters, Christopher A. Gutierrez, Wojciech M. Serafin
-
Patent number: 10929327Abstract: An expansion device is disclosed for including a plurality of modular devices within a pre-defined volume, such as the drive bay of a computing device. The expansion device may include a standardized bus connection and circuitry connecting to a controller chip, circuitry electrically coupling the controller chip to a plurality of modular devices, and a housing that houses the controller chip, connecting circuitry, and modular devices and that fits within the pre-defined volume.Type: GrantFiled: February 22, 2016Date of Patent: February 23, 2021Assignee: ZT Group Int'l, Inc.Inventors: Michael Schrempp, Chen An, Zichun Song, Raphael Deng, Kevin R. Qualters, Jonah Dunham
-
Patent number: 10585466Abstract: A system and method for controlling cooling in a computing device are provided. A measurement of power consumption of at least one of the computer components is received. A theoretical setting for the cooling system is determined based on the received measurement of power consumption. A current setting of the cooling system is identified. Based on a difference between the theoretical setting and the current setting, a next setting for the cooling system is determined. An output of the cooling system is controlled based on the next setting for the cooling system.Type: GrantFiled: March 6, 2018Date of Patent: March 10, 2020Assignee: ZT Group Int'l, Inc.Inventors: Ting Yu Lin, Cheng Chen
-
Patent number: 10477712Abstract: A multilevel rotating drive carrier includes stacked top, middle, and bottom drive-holding brackets. The top and middle brackets pivot about a parallel axis from a closed position to an open position to provide access to middle and bottom storage drives. The top bracket makes a storage drive accessible when the carrier is closed or open. Removing one storage drive does not require the disconnecting of another storage drive.Type: GrantFiled: February 11, 2019Date of Patent: November 12, 2019Assignee: ZT Group Int'l, Inc.Inventors: David Liang, Dhruv Chawla