Patents by Inventor Johan Rahardjo

Johan Rahardjo 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: 9280191
    Abstract: Systems and methods are disclosed that may be used for controlling information handling system power supply based on current system power policy such as current system load power need and/or based on current system load power capping information. The disclosed systems and methods may be so implemented to improve power use efficiency for information handling system applications in which a power supply unit (PSU) has a power delivery capability that is overprovisioned relative to the power-consuming system load component/s of an information handling system.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: March 8, 2016
    Assignee: Dell Products LP.
    Inventors: Johan Rahardjo, Girish Das
  • Publication number: 20160033611
    Abstract: Systems and methods are disclosed that may be employed to calibrate current sense circuitry of CPU core voltage (Vcore) DC/DC voltage regulation circuitry by coupling an individual Vcore phase of a VR as a current source to a VSA phase of the same VR so that the Vcore phase acts as a current sink for the coupled Vcore phase during calibration of the current sense circuitry of the individual Vcore phase.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 4, 2016
    Inventors: Johan Rahardjo, John J. Breen, Abey K. Mathew
  • Patent number: 9146855
    Abstract: Systems and methods are disclosed that may be implemented to manage operation and tracking memory wear of flash devices, such as relatively large mixed use embedded NAND flash devices or other non-volatile memory (NVM) devices employed in information handling systems such as servers. The disclosed systems and methods may advantageously be implemented to perform tasks such as tracking and/or predicting actual wear for NVM devices, and optionally controlling write operations to a NVM device. The disclosed systems and methods may also be optionally implemented to generate wear alerts based on tracked or predicted wear of such NVM devices.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: September 29, 2015
    Assignee: Dell Products LP
    Inventors: Timothy M. Lambert, Johan Rahardjo
  • Patent number: 9037884
    Abstract: In accordance with one embodiment of the present disclosure, a multi-phase voltage regulator may comprise a plurality of phases, each phase configured to supply electrical current to one or more information handling resources electrically coupled to the voltage regulator. A controller may be electrically coupled to the plurality of phases. The controller may designate at least one of the plurality of phases as a first state phase, and designate each of the plurality of phases not designated as a first state phase as a second state phase. The controller may alternate the designation of at least two of the plurality of phases between a first state phase and a second state phase. Each first state phase may be configured to supply a first electrical current regardless of electrical current demand. Each second state phase may be configured to supply a second electrical current based on the current demand.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: May 19, 2015
    Assignee: Dell Products L.P.
    Inventors: Johan Rahardjo, John Breen, Shiguo Luo
  • Publication number: 20150095631
    Abstract: In accordance with these and other embodiments of the present disclosure, an information handling system may include a processor and a basic input/output system (BIOS) comprising a program of instructions. The BIOS may be configured to, when read and executed by the processor, calculate a binding secret for binding a cryptoprocessor to a motherboard of the information handling system, the binding secret based on unique identifying information of both the cryptoprocessor and the motherboard, store the binding secret in a non-volatile memory integral to the cryptoprocessor, and validate binding of the cryptoprocessor to the motherboard by comparing a subsequently-calculated binding secret to the binding secret.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Dell Products L.P.
    Inventors: Johan Rahardjo, Mukund Purshottam Khatri, Vaden Albert Mohrmann
  • Patent number: 8995670
    Abstract: Systems and methods are disclosed that may be implemented to locally and remotely record, control, monitor and analyze sounds generated in an information handling system environment, e.g., such as in a server environment. Among other things, remote monitoring and observation of sound in a data center environment may be implemented to assist administrators with data center management and forensics analysis related to physical chassis events (e.g., such as chassis access and/or chassis intrusion), as well as providing live streaming, and local technician recorded sound bite capabilities. A sound policy may also be implemented involving server sound optimizations that works in conjunction with system thermal and power algorithms.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: March 31, 2015
    Assignee: Dell Products L.P.
    Inventors: Timothy M. Lambert, Johan Rahardjo
  • Patent number: 8994346
    Abstract: Systems and methods are provided that may be implemented to dynamically manage voltage regulator switching frequency. In one embodiment, the disclosed systems and methods may be implemented to dynamically find the optimal voltage regulator switching frequency based on the load current (IOUT) and efficiency in a switching voltage regulator device (VR), such as a voltage regulator down device (VRD) that is embedded on a system board of an information handling system.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: March 31, 2015
    Assignee: Dell Products LP
    Inventors: Johan Rahardjo, Abey K. Mathew, John J. Breen
  • Publication number: 20150066234
    Abstract: In accordance with one embodiment of the present disclosure, a multi-phase voltage regulator may comprise a plurality of phases, each phase configured to supply electrical current to one or more information handling resources electrically coupled to the voltage regulator. A controller may be electrically coupled to the plurality of phases. The controller may designate at least one of the plurality of phases as a first state phase, and designate each of the plurality of phases not designated as a first state phase as a second state phase. The controller may alternate the designation of at least two of the plurality of phases between a first state phase and a second state phase. Each first state phase may be configured to supply a first electrical current regardless of electrical current demand. Each second state phase may be configured to supply a second electrical current based on the current demand.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Inventors: Johan Rahardjo, John Breen, Shiguo Luo
  • Patent number: 8930723
    Abstract: In accordance with one embodiment of the present disclosure, a multi-phase voltage regulator may comprise a plurality of phases, each phase configured to supply electrical current to one or more information handling resources electrically coupled to the voltage regulator. A controller may be electrically coupled to the plurality of phases. The controller may designate at least one of the plurality of phases as a first state phase, and designate each of the plurality of phases not designated as a first state phase as a second state phase. The controller may alternate the designation of at least two of the plurality of phases between a first state phase and a second state phase. Each first state phase may be configured to supply a first electrical current regardless of electrical current demand. Each second state phase may be configured to supply a second electrical current based on the current demand.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: January 6, 2015
    Assignee: Dell Products L.P.
    Inventors: Johan Rahardjo, John Breen, Shiguo Luo
  • Publication number: 20140306831
    Abstract: Systems and method for increasing current monitor accuracy are disclosed. The systems and methods may include receiving a run-time load value from a current monitor, determining a component parameter value associated with the run-time load value, and communicating the component parameter value to the current monitor.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 16, 2014
    Inventors: Girish Prasad Das, Johan Rahardjo
  • Patent number: 8839007
    Abstract: Systems and methods may be implemented in a power device subsystem topology to provide an arbitration and communication scheme between a single consolidated non-volatile random access (NVRAM) memory device and multiple discrete digital power controller devices in a manner that provides data protection and the ability to update the full NVRAM content when needed.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: September 16, 2014
    Assignee: Dell Products LP
    Inventors: Johan Rahardjo, Abey K. Mathew, George G. Richards, III, John J. Breen, Timothy M. Lambert
  • Publication number: 20140237220
    Abstract: A method includes storing configuration data for a Trusted Platform Module (TPM) in a pre-boot environment such as Unified Extensible Firmware Interface (UEFI), reading the configuration data, and automatically configuring the TPM based upon the configuration data. The configuring includes storing values of TPM parameters in non-volatile memory of the TPM. A method includes UEFI firmware of a circuit board on an assembly line configuring a TPM. An information handling system includes UEFI firmware and a TPM. The UEFI firmware configures the TPM from a configuration file stored in memory of the UEFI firmware.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 21, 2014
    Applicant: DELL PRODUCTS, LP
    Inventors: Andrew J. O'Rourke, Darin R. Dearwater, Johan Rahardjo, Jeffrey R. Azulay
  • Publication number: 20140208136
    Abstract: Systems and methods are disclosed that may be used for controlling information handling system power supply based on current system power policy such as current system load power need and/or based on current system load power capping information. The disclosed systems and methods may be so implemented to improve power use efficiency for information handling system applications in which a power supply unit (PSU) has a power delivery capability that is overprovisioned relative to the power-consuming system load component/s of an information handling system.
    Type: Application
    Filed: January 21, 2013
    Publication date: July 24, 2014
    Applicant: Dell Products L.P.
    Inventors: Johan Rahardjo, Girish Das
  • Patent number: 8656223
    Abstract: An information handling system includes a peripheral component interconnect express root complex, a basic input output system, and a root complex mirroring block. The peripheral component interconnect express root complex includes a plurality of peripheral component interconnect express ports. The basic input output system is in communication with the peripheral component interconnect express root complex, and is configured to detect a peripheral component interconnect express adaptor configuration, and to set a peripheral component interconnect express mirroring setting based on the peripheral component interconnect express adaptor configuration. The root complex mirroring block is in communication with the basic input output system, and is configured to mirror data between a first peripheral component interconnect express adaptor and a second peripheral component interconnect express adaptor based on the peripheral component interconnect express mirroring setting.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: February 18, 2014
    Assignee: Dell Products, LP
    Inventors: Indrani Paul, Johan Rahardjo, Mukund P. Khatri
  • Publication number: 20130207630
    Abstract: Systems and methods are provided that may be implemented to dynamically manage voltage regulator switching frequency. In one embodiment, the disclosed systems and methods may be implemented to dynamically find the optimal voltage regulator switching frequency based on the load current (IOUT) and efficiency in a switching voltage regulator device (VR), such as a voltage regulator down device (VRD) that is embedded on a system board of an information handling system.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 15, 2013
    Inventors: Johan Rahardjo, Abey K. Mathew, John J. Breen
  • Publication number: 20130179624
    Abstract: Systems and methods are disclosed that may be implemented to manage operation and tracking memory wear of flash devices, such as relatively large mixed use embedded NAND flash devices or other non-volatile memory (NVM) devices employed in information handling systems such as servers. The disclosed systems and methods may advantageously be implemented to perform tasks such as tracking and/or predicting actual wear for NVM devices, and optionally controlling write operations to a NVM device. The disclosed systems and methods may also be optionally implemented to generate wear alerts based on tracked or predicted wear of such NVM devices.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 11, 2013
    Inventors: Timothy M. Lambert, Johan Rahardjo
  • Patent number: 8402307
    Abstract: An information handling system includes a peripheral component interconnect express root complex, a basic input output system, and a root complex mirroring block. The peripheral component interconnect express root complex includes a plurality of peripheral component interconnect express ports. The basic input output system is in communication with the peripheral component interconnect express root complex, and is configured to detect a peripheral component interconnect express adaptor configuration, and to set a peripheral component interconnect express mirroring setting based on the peripheral component interconnect express adaptor configuration. The root complex mirroring block is in communication with the basic input output system, and is configured to mirror data between a first peripheral component interconnect express adaptor and a second peripheral component interconnect express adaptor based on the peripheral component interconnect express mirroring setting.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: March 19, 2013
    Assignee: Dell Products, LP
    Inventors: Indrani Paul, Johan Rahardjo, Mukund P. Khatri
  • Publication number: 20120324246
    Abstract: Systems and methods may be implemented in a power device subsystem topology to provide an arbitration and communication scheme between a single consolidated non-volatile random access (NVRAM) memory device and multiple discrete digital power controller devices in a manner that provides data protection and the ability to update the full NVRAM content when needed.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 20, 2012
    Inventors: Johan Rahardjo, Abey K. Mathew, George G. Richards, III, John J. Breen, Timothy M. Lambert
  • Publication number: 20120290852
    Abstract: In accordance with the present disclosure, a system and method for voltage regulator optimization though predictive transient warning is described. The system may include a transient load, a controller and a voltage regulator. The controller may manage a control state of the transient load and generate a transient notification signal in response to an upcoming transient event at the transient load. The voltage regulator may provide power to the transient load and may change its mode of operation to prepare for the upcoming transient event in response to the transient notification signal.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Inventors: Johan Rahardjo, Abey K. Mathew, Indrani Paul
  • Publication number: 20120275610
    Abstract: Systems and methods are disclosed that may be implemented to locally and remotely record, control, monitor and analyze sounds generated in an information handling system environment, e.g., such as in a server environment. Among other things, remote monitoring and observation of sound in a data center environment may be implemented to assist administrators with data center management and forensics analysis related to physical chassis events (e.g., such as chassis access and/or chassis intrusion), as well as providing live streaming, and local technician recorded sound bite capabilities. A sound policy may also be implemented involving server sound optimizations that works in conjunction with system thermal and power algorithms.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 1, 2012
    Inventors: Timothy M. Lambert, Johan Rahardjo