Patents by Inventor Kenneth Ma
Kenneth Ma 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: 20140208144Abstract: A method and apparatus are disclosed for performing adaptive memory power management in a system employing a CPU and a memory subsystem. A CPU throttle control (THR) module generates a CPU throttle control signal indicating when the CPU is idle. A memory controller (MC) module generates memory power management signals based on at least one of the CPU throttle control signal, memory read/write signals, memory access break events, and bus master access requests. Certain portions of the memory subsystem are powered down in response to the memory power management signals. Memory power management is performed on a time segment by time segment basis to achieve efficient power management of the memory subsystem during CPU run time.Type: ApplicationFiled: January 23, 2013Publication date: July 24, 2014Applicant: Broadcom CorporationInventor: Kenneth MA
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Publication number: 20140173757Abstract: A gateway network device may establish secure connections to a plurality of remote network devices using tunneling protocols to distribute to the remote network devices multimedia content received from one or more content providers. The consumption of the multimedia content may originally be restricted to local network associated with the gateway network device. The secure connections may be set up using L2TP protocol, and the L2TP tunneling connections may be secured using IPSec protocol. Use of multimedia content may be restricted based on DRM policies of the content provider. DRM policies may be implemented using DTCP protocol, which may restrict use of the multimedia content based on roundtrip times and/or IP subnetting. Each content provider may use one or more VLAN identifiers during communication of the multimedia content to the gateway network device, and the gateway network device may associate an additional VLAN identifier with each secure connection.Type: ApplicationFiled: February 20, 2014Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventors: Yongbum Kim, Bruce Currivan, Wael Diab, Jeyhan Karaoguz, Kenneth Ma, Michael Johas Teener
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Patent number: 8719475Abstract: Inter-chip connectivity may be provided in a computing device, which may comprise a USB host and at and at least one USB device embedded within the computing device, based on Universal Serial Bus version 3.0 (USB3.0) interface. In this regard, internal communication of data between the USB host and embedded USB device may be performed via USB3.0 SuperSpeed signals. The USB host and/or the USB3.0 interface may be configured to enable USB3.0 internal communication of data, and to reduce power consumption during the internal communication of data compared to external USB3.0 communications. Configuration of the USB3.0 interface for internal communication of data may comprises modifying and/or adjusting physical (PHY) layer, link layer, and/or protocol layer related parameters, functions, resources, and/or operations. The USB3.0 SuperSpeed signals may be communication using scalable low voltage signaling (SLVS). In this regard, Input/Output (IO) Swing may be set based on loopback training sequence.Type: GrantFiled: January 19, 2011Date of Patent: May 6, 2014Assignee: Broadcom CorporationInventors: Kenneth Ma, Seong-Ho Lee
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Patent number: 8713128Abstract: In various embodiments of a method and system for utilizing native Ethernet as a virtual memory interconnect, a first networking device may be operable to transcode a memory read command and/or a memory write command to memory access information and encapsulate the memory access information within in one or more fields of an Ethernet frame. The memory access information may be communicated over an Ethernet link to a second networking device where it may be utilized to access memory that is associated with the memory read command and/or the memory write command. For example, the memory access information may indicate an address of the memory to be accessed, whether a read operation and/or a write operation is to be performed, whether the frame comprises data to be written to the memory, and/or whether a locally administered address space is utilized.Type: GrantFiled: February 22, 2010Date of Patent: April 29, 2014Assignee: Broadcom CorporationInventors: Michael Johas Teener, Bruce Currivan, Wael William Diab, Jeyhan Karaoguz, Yongbum Kim, Kenneth Ma
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Patent number: 8707456Abstract: A gateway network device may establish secure connections to a plurality of remote network devices using tunneling protocols to distribute to the remote network devices multimedia content received from one or more content providers. The consumption of the multimedia content may originally be restricted to local network associated with the gateway network device. The secure connections may be set up using L2TP protocol, and the L2TP tunneling connections may be secured using IPSec protocol. Use of multimedia content may be restricted based on DRM policies of the content provider. DRM policies may be implemented using DTCP protocol, which may restrict use of the multimedia content based on roundtrip times and/or IP subnetting. Each content provider may use one or more VLAN identifiers during communication of the multimedia content to the gateway network device, and the gateway network device may associate an additional VLAN identifier with each secure connection.Type: GrantFiled: June 8, 2010Date of Patent: April 22, 2014Assignee: Broadcom CorporationInventors: Yongbum Kim, Bruce Currivan, Wael Diab, Jeyhan Karaoguz, Kenneth Ma, Michael Johas Teener
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Publication number: 20140089553Abstract: Disclosed are various embodiments for an interface between a host device and one or more peripheral devices in a computing system. A peripheral-side controller, a host-side controller, and a peripheral-side translator are located on a peripheral device that is in communication with a host device. The peripheral-side translator transfers data from an internal bus in the peripheral device to an external interface for the peripheral device. The internal bus is associated with a first bus protocol, and the external interface is associated with a second bus protocol.Type: ApplicationFiled: January 23, 2013Publication date: March 27, 2014Applicant: BROADCOM CORPORATIONInventor: Kenneth Ma
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Publication number: 20140013328Abstract: One or more processors and/or one or more circuits may be operable to configure one or more virtual machines and a hypervisor for controlling the one or more virtual machines. The virtual machines and the hypervisor may be distributed across a plurality of network devices. A sub-hypervisor may be configured within each of the virtual machines utilizing the hypervisor. Load information of the network devices may be communicated to the hypervisor utilizing the sub-hypervisors. The virtual machines may include threads, may be load balanced utilizing the hypervisor, dynamically configured utilizing the hypervisor based on changes in the network devices, and scaled by the distribution of the virtual machines across the network devices. Information from the processing of data may be received in the virtual machines. The network devices may include a plurality of: servers, switches, routers, racks, blades, mainframes, personal data assistants, smart phones, desktop computers, and/or laptop devices.Type: ApplicationFiled: September 13, 2013Publication date: January 9, 2014Applicant: Broadcom CorporationInventors: Wael Diab, Bruce Currivan, Jeyhan Karaoguz, Yongbum Kim, Kenneth Ma, Michael Johas Teener
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Publication number: 20140010113Abstract: A switching fabric, within a network switching device, may comprise a plurality of dedicated interface modules to enable the switching fabric to interface with a plurality of switching support subsystems. The switching support subsystems may comprise a memory subsystem, a content address memory (CAM) subsystem, a packet processing subsystem, and a physical layer (PHY) subsystem. The switching fabric may be operable to determine capacity and/or capability of each of the plurality of switching support subsystems; and to configure each of the plurality of dedicated interface modules based on the determined capacity and/or capability of a corresponding switching support subsystem. The switching fabric also comprises an inter-switch interface module to enable coupling the network switching device to a plurality of other network switching devices, to form a multi-device switching mesh that enable sharing of resources and/or aggregation of switching capabilities of the network switching devices.Type: ApplicationFiled: September 9, 2013Publication date: January 9, 2014Applicant: Broadcom CorporationInventors: Wael Diab, Yongbum Kim, Bruce Currivan, Jeyhan Karaoguz, Kenneth Ma, Michael Johas Teener
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Patent number: 8613085Abstract: Aspects of a method and system for traffic management via virtual machine migration include detecting an abnormal traffic pattern in traffic communicated by a first virtual machine that utilizes a first set of network resources. Responsive to the detection of the abnormal pattern, a second virtual machine that utilizes a second set of network resources may be initialized. The second virtual machine may take over functions performed by the first virtual machine and initialization of the second virtual machine is based on an analysis of the traffic. The second virtual machine may be initialized utilizing stored virtual machine state information in instances that the abnormal traffic is a result of a malicious attack. The second virtual machine may be initialized utilizing current virtual machine state information in instances that the abnormal traffic is not a result of a malicious attack.Type: GrantFiled: November 11, 2009Date of Patent: December 17, 2013Assignee: Broadcom CorporationInventors: Wael William Diab, Bruce Currivan, Jeyhan Karaoguz, Yongbum Kim, Kenneth Ma, Michael Johas Teener
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Patent number: 8599830Abstract: Network Interface Controller (NIC) logic may receive a packet comprising a routing parameter indicating a service or cost to be utilized in processing the packet. The NIC logic may determine a selected virtual machine (VM) running on a network device to process the packet according to the routing parameter. The NIC logic may communicate the packet across a network after the packet has been processed by the selected virtual VM. Or, the NIC logic may initialize a VM in the network device to process the packet according to the routing parameter. The NIC logic may receive multiple packets and determine a second selected VM or initialize a second VM to process the multiple packets according to the respective routing parameters of the multiple packets. The routing parameters may indicate device capabilities, service class, quality measurements, latency, power usage or any combination thereof.Type: GrantFiled: July 17, 2012Date of Patent: December 3, 2013Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Bruce Currivan, Wael William Diab, Yongbum Kim, Kenneth Ma, Michael Johas Teener
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Patent number: 8566822Abstract: One or more processors and/or one or more circuits may be operable to configure one or more virtual machines and a hypervisor for controlling the one or more virtual machines. The virtual machines and the hypervisor may be distributed across a plurality of network devices. A sub-hypervisor may be configured within each of the virtual machines utilizing the hypervisor. Load information of the network devices may be communicated to the hypervisor utilizing the sub-hypervisors. The virtual machines may include threads, may be load balanced utilizing the hypervisor, dynamically configured utilizing the hypervisor based on changes in the network devices, and scaled by the distribution of the virtual machines across the network devices. Information from the processing of data may be received in the virtual machines. The network devices may include a plurality of: servers, switches, routers, racks, blades, mainframes, personal data assistants, smart phones, desktop computers, and/or laptop devices.Type: GrantFiled: September 30, 2009Date of Patent: October 22, 2013Assignee: Broadcom CorporationInventors: Wael Diab, Bruce Currivan, Jeyhan Karaoguz, Yongbum Kim, Kenneth Ma, Michael Johas Teener
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Patent number: 8559333Abstract: A switching fabric, within a network switching device, may comprise a plurality of dedicated interface modules to enable the switching fabric to interface with a plurality of switching support subsystems. The switching support subsystems may comprise a memory subsystem, a content address memory (CAM) subsystem, a packet processing subsystem, and a physical layer (PHY) subsystem. The switching fabric may be operable to determine capacity and/or capability of each of the plurality of switching support subsystems; and to configure each of the plurality of dedicated interface modules based on the determined capacity and/or capability of a corresponding switching support subsystem. The switching fabric also comprises an inter-switch interface module to enable coupling the network switching device to a plurality of other network switching devices, to form a multi-device switching mesh that enable sharing of resources and/or aggregation of switching capabilities of the network switching devices.Type: GrantFiled: January 20, 2010Date of Patent: October 15, 2013Inventors: Wael Diab, Yongbum Kim, Bruce Currivan, Jeyhan Karaoguz, Kenneth Ma, Michael Johas Teener
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Patent number: 8543737Abstract: Various aspects of the invention provide a plurality of systems and methods of selectively enabling access to data stored in a data storage device, by one or more data processing devices communicatively coupled to the data storage device. In a representative embodiment, selective access to one or more data pools may be made as a function of one or more interfaces of the data storage device. In a representative embodiment, selective access to one or more data pools may be made as a function of one or more data file types associated with one or more data pools of the data storage device. In a representative embodiment, access to data stored in one or more data pools of the data storage device may be based on or associated with one or more types networks associated with the data storage device.Type: GrantFiled: February 3, 2005Date of Patent: September 24, 2013Assignee: Broadcom CorporationInventor: Kenneth Ma
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Patent number: 8380836Abstract: Aspects of a method and system for predictive leasing of network services and applications based on a usage pattern may comprise a management entity that coordinates operation of one or more endpoint devices. A user profile associated with the one or more endpoint devices may be received by the management entity, wherein the management entity may utilize the user profile associated with the one or more endpoint devices and a usage pattern associated with the one or more endpoint devices to determine leasing information for the one or more endpoint devices. The management entity may be operable to communicate the determined leasing information to the one or more endpoint devices. The leasing information may comprise leasing services and/or applications to the one or more endpoint devices.Type: GrantFiled: May 6, 2010Date of Patent: February 19, 2013Assignee: Broadcom CorporationInventors: Yongbum Kim, Bruce Currivan, Wael William Diab, Jeyhan Karaoguz, Kenneth Ma, Michael Johas Teener
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Patent number: 8365001Abstract: A method and apparatus are disclosed for performing adaptive memory power management in a system employing a CPU and a memory subsystem. A CPU throttle control (THR) module generates a CPU throttle control signal indicating when the CPU is idle. A memory controller (MC) module generates memory power management signals based on at least one of the CPU throttle control signal, memory read/write signals, memory access break events, and bus master access requests. Certain portions of the memory subsystem are powered down in response to the memory power management signals. Memory power management is performed on a time segment by time segment basis to achieve efficient power management of the memory subsystem during CPU run time.Type: GrantFiled: March 2, 2009Date of Patent: January 29, 2013Assignee: Broadcom CorporationInventor: Kenneth Ma
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Publication number: 20130013782Abstract: Aspects of a method and system for predictive leasing of network services and applications based on a usage pattern may comprise a management entity that coordinates operation of one or more endpoint devices. A user profile associated with the one or more endpoint devices may be received by the management entity, wherein the management entity may utilize the user profile associated with the one or more endpoint devices and a usage pattern associated with the one or more endpoint devices to determine leasing information for the one or more endpoint devices. The management entity may be operable to communicate the determined leasing information to the one or more endpoint devices. The leasing information may comprise leasing services and/or applications to the one or more endpoint devices.Type: ApplicationFiled: September 13, 2012Publication date: January 10, 2013Applicant: Broadcom CorporationInventors: Yongbum Kim, Bruce Currivan, Wael William Diab, Jeyhan Karaoguz, Kenneth Ma, Michael Johas Teener
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Patent number: 8311209Abstract: In accordance with a method for wireless communication, in a coexistence system comprising a plurality of different wireless interface devices within a single integrated circuit, wherein each of the plurality of wireless interface devices utilizes a corresponding different wireless communication standard, and when one of the plurality of wireless interface devices is receiving or will receive a packet, communicating from the one of the plurality of wireless interface devices, an indication to at least one of a remaining one or remaining ones of the plurality of wireless interface devices, which enables the at least one of the remaining one or ones of the plurality of wireless interface devices to delay corresponding transmission based on the indication. The indication may include status information for the receiving of the packet by the one of the plurality of wireless interface devices.Type: GrantFiled: November 12, 2007Date of Patent: November 13, 2012Assignee: Broadcom CorporationInventors: Brima B. Ibrahim, Kenneth Ma
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Publication number: 20120281711Abstract: Network Interface Controller (NIC) logic may receive a packet comprising a routing parameter indicating a service or cost to be utilized in processing the packet. The NIC logic may determine a selected virtual machine (VM) running on a network device to process the packet according to the routing parameter. The NIC logic may communicate the packet across a network after the packet has been processed by the selected virtual VM. Or, the NIC logic may initialize a VM in the network device to process the packet according to the routing parameter. The NIC logic may receive multiple packets and determine a second selected VM or initialize a second VM to process the multiple packets according to the respective routing parameters of the multiple packets. The routing parameters may indicate device capabilities, service class, quality measurements, latency, power usage or any combination thereof.Type: ApplicationFiled: July 17, 2012Publication date: November 8, 2012Applicant: Broadcom CorporationInventors: Jeyhan Karaoguz, Bruce Currivan, Wael William Diab, Yongbum Kim, Kenneth Ma, Michael Johas Teener
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Publication number: 20120250877Abstract: A central audio hub, comprising an audio switch, a bus matrix, and an audio buffer, is triggered to read audio samples of an audio stream from the audio buffer. The central audio hub routes the audio samples via the bus matrix to one or more surrounding audio modules such as an audio codec and an audio interface communicatively coupled to the central audio hub. The audio stream may be directly from an external application processor or from an external DDR. With the audio stream from the DDR, a DMA controller may fetch the audio samples from the DDR in response to a request received from the audio buffer, and store the fetched audio samples into the audio buffer for routing. The audio switch may be triggered at a determined sampling rate to read the audio samples from the audio buffer utilizing a determined sample format, and to route the audio samples to the surrounding audio modules.Type: ApplicationFiled: March 31, 2011Publication date: October 4, 2012Inventors: Taiyi Cheng, Hongwei Kong, Nelson Sollenberger, Mark Fullerton, Chin Sieh Lee, Timothy Pong, Yafang Feng, Claire Marie Suzanne Simeon, Michael Liu, Kenneth Ma, Chaoyang Zhao
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Patent number: 8270609Abstract: One or more systems and methods are disclosed to provide secure transmission of signals by a primary wireless communication device that utilizes a secure multi-tier signal encryption mechanism. A secondary signal encryption mechanism of a secondary wireless communication device generates an intermediary algorithmic output required in the encryption processing at a primary signal encryption mechanism of a primary wireless communication device. In one embodiment, the secondary signal encryption mechanism comprises a subscriber identity module (SIM) card. In one embodiment, wireless signal transmission occurs over a GSM/GPRS/EDGE network.Type: GrantFiled: June 13, 2003Date of Patent: September 18, 2012Inventor: Kenneth Ma