Patents by Inventor Jun Cao

Jun Cao 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: 9009466
    Abstract: There are a terminal device capable of link layer encryption and decryption and a data process method thereof, and the terminal device includes a link layer processing module including a control module, a data frame encryption module, a data frame decryption module, a key management module, an algorithm module, a transmission port and a reception port; and the control module is connected with the transmission port through the data frame encryption module, the reception port is connected with the control module through the data frame decryption module, the control module is connected with the key management module, the data frame encryption module is connected with the data frame decryption module through the key management module, and the data frame encryption module is connected with the data frame decryption module through the algorithm module.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: April 14, 2015
    Assignee: China IWNCOMM Co., Ltd.
    Inventors: Qin Li, Jun Cao, Manxia Tie
  • Publication number: 20150094346
    Abstract: The present invention provides a compound of formula (I) in free form or in pharmaceutically acceptable salt form a method for manufacturing the compound of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and pharmaceutical compositions.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 2, 2015
    Applicant: NOVARTIS AG
    Inventors: Jun CAO, Bernhard ERB, Robin Alec FAIRHURST, Arnaud GRANDEURY, Shinji HATAKEYAMA, Magdalena KOZICZAK-HOLBRO, Philipp LUSTENBERGER, Bernd RIEBESEHL, Nicola TUFILLI, Thomas ULLRICH, Xiang WU, Jianguang ZHOU
  • Patent number: 8996844
    Abstract: A system including a storage device and a controller. The storage device is configured to store a map. The map relates (i) a first portion of a memory to a first order of first dimensions, and (ii) a second portion of the memory to a second order of second dimensions. The first portion of the memory and the second portion of the memory are non-overlapping. Each of the first dimensions and each of the second dimensions has corresponding memory cells in the memory. The controller is configured to control access to the first portion of the memory according to the first order of first dimensions while controlling access to the second portion of the memory according to the second order of the second dimensions.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: March 31, 2015
    Assignee: Marvell International Ltd.
    Inventors: Jun Zhu, Joseph Jun Cao, Samitinjoy Pal, Hongyan Liu, Can Ma
  • Publication number: 20150084800
    Abstract: Methods and apparatuses are described for versatile phase adjustment schemes comprising multi-layered clock skew correction with variable range and resolution to improve performance for a variety of ADC architectures, including TI-ADCs. Multi-stage phase alignment corrects misalignment in multiple stages at start-up and continuously or periodically during operation to reduce static sources of misalignment caused by design and fabrication and dynamic sources of misalignment caused by operational variations (e.g., voltage, temperature). Multi-path phase alignment corrects misalignment in the data path (e.g., analog path) and the clock path (e.g., digital path, analog path, CMOS path, CML path, or any combination thereof) for distributed alignment. Multi-lane phase alignment corrects misalignment in multiple time-interleaved signal lanes. Multi-resolution phase alignment corrects misalignment at three or more levels of resolution (e.g., coarse, fine and ultra-fine).
    Type: Application
    Filed: September 27, 2013
    Publication date: March 26, 2015
    Applicant: Broadcom Corporation
    Inventors: Heng Zhang, Delong Cui, Jun Cao, Afshin Doctor Momtaz
  • Patent number: 8984287
    Abstract: A wireless personal area network access method based on the primitive, includes: a coordinator broadcasts a beacon frame to the device which requests connecting to the wireless personal area network (WPAN), the beacon frame includes the authentication request information for the device and the authentication and a key management tool supported by the coordinator; the device authenticates the authentication request information, when the coordinator has an authentication request to the device, the coordinator and the device execute the authentication based on the primitive and obtains the conversation key.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: March 17, 2015
    Assignee: China Iwncomm Co., Ltd.
    Inventors: Yuelei Xiao, Jun Cao, Xiaolong Lai, Zhenhai Huang, Bianling Zhang, Zhiqiang Qin, Qizhu Song
  • Patent number: 8964907
    Abstract: According to an example embodiment, a communications receiver may include a variable gain amplifier (VGA) configured to amplify received signals, a VGA controller configured to control the VGA, a plurality of analog to digital converter (ADC) circuits coupled to an output of the VGA, wherein the plurality of ADC circuits are operational when the communications receiver is configured to process signals of a first communications protocol, and wherein only a subset of the ADC circuits are operational when the communications receiver is configured to process signals of a second communications protocol.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: February 24, 2015
    Assignee: Broadcom Corporation
    Inventors: Vivek Pundlik Telang, Hong Chen, Vasudevan Parthasarathy, Jun Cao, Afshin Momtaz, Ali Ghiasi, Chung-Jue Chen
  • Patent number: 8966257
    Abstract: The present invention discloses a method and system for secret communication between nodes in a wired Local Area Network (LAN). The method of secret communication between nodes in the wired LAN includes the following steps: 1) a sharing key is established; 2) the route probe is exchanged; 3) the data communication is classified; 4) the secret communication is processed among the nodes. According to the different communication situations among the nodes, the method of secret communication between nodes provided in the present invention can process the classification and select an appropriate secret communication strategy; compared with per-hop encryption, the calculation load of the exchange equipment is reduced, and the transmission delay of data packets is shortened; compared with the method that inter-station keys are established in pairs of nodes in order to protect the communication secret, the key number is reduced, and the key management is simplified.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: February 24, 2015
    Assignee: China Iwncomm Co., Ltd.
    Inventors: Manxia Tie, Jun Cao, Oin Li, Li Ge, Zhenhai Huang
  • Patent number: 8964923
    Abstract: Provided is a low latency high bandwidth clock and data recovery (CDR) system. For example, there is a low latency high bandwidth CDR system including a demultiplexer configured to convert a high frequency input datastream to a low frequency output datastream according to a first latency and a phase error processor at least partially embedded into the demultiplexer and configured to determine a datastream phase error of the high frequency input datastream according to a second latency. The embedded phase error processor allows a portion of a total latency of the CDR system due to the demultiplexer and the phase error processor to be less than a sum of the first and second latencies.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: February 24, 2015
    Assignee: Broadcom Corporation
    Inventors: Anand Jitendra Vasani, Jun Cao, Afshin Momtaz
  • Patent number: 8959417
    Abstract: A memory controller provides low-latency error correcting code (ECC) capability for a memory. In some implementations, the controller is configured to receive a memory access command that includes an address and a length associated with data that is to be transferred to or from the memory device, and transfer one or more bytes of data and one or more bytes of ECC information to or from locations of the memory device associated with the address and the length.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: February 17, 2015
    Assignee: Marvell World Trade Ltd.
    Inventors: Jun Zhu, Joseph Jun Cao, Sheng Lu, Pantas Sutardja
  • Publication number: 20150035563
    Abstract: A high speed level shifter interfaces a high speed DAC to the digital information that the DAC processes. The level shifter may convert CMOS level digital representations to, for example, CML level digital representations for processing by the DAC. The level shifter conserves the voltage swing in the CMOS level representations (e.g., about 1V). The level shifter also avoids voltage overstress, using a feedback loop to constrain the voltage amplitude, and thereby facilitates the use of fast thin film transistors in its architecture.
    Type: Application
    Filed: September 12, 2013
    Publication date: February 5, 2015
    Applicant: Broadcom Corporation
    Inventors: Ali Nazemi, Kangmin Hu, Jun Cao, Afshin Doctor Momtaz
  • Patent number: 8949474
    Abstract: A system on a chip (SOC) includes a master module, a first swapping module, and a switch module. The master module is configured to generate a transaction request, the transaction request including an address field including an address, the address corresponding to a first slave module associated with the transaction request, and a plurality of interface select bits corresponding to a desired one of a plurality of ports of the first slave module. The first swapping module is configured to swap, in the transaction request, the plurality of interface select bits with selected bits of the address in the address field. The switch module is configured to route the transaction request to the desired one of the plurality of ports based on the address.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: February 3, 2015
    Assignee: Marvell International Ltd.
    Inventors: Ian Swarbrick, Joseph Jun Cao, Jun Zhu
  • Patent number: 8933108
    Abstract: The present invention provides a compound of formula (I) in free form or in pharmaceutically acceptable salt form a method for manufacturing the compound of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and pharmaceutical compositions.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: January 13, 2015
    Assignee: Novartis AG
    Inventors: Jun Cao, Bernhard Erb, Robin Alec Fairhurst, Arnaud Grandeury, Shinji Hatakeyama, Magdalena Koziczak-Holbro, Xinzhong Lai, Philipp Lustenberger, Bernd Riebesehl, Nicola Tufilli, Thomas Ullrich, Xiang Wu, Jianguang Zhou
  • Patent number: 8935596
    Abstract: System and methods for storing data encoded with error information in a storage medium are provided. A binary data and an encoded binary error signals are received. The encoded binary error signal includes information that represents occurrence of errors in the binary data signal. The binary data and encoded binary error signals are encoded to generate a binary codeword signal. Bits of the binary codeword signal that represent coding information and the binary data signal are extracted. The extracted bits of the binary codeword signal are stored in a first storage medium. The binary packed data signal is retrieved from the first storage device and decoded to recover the binary data signal and a syndrome. Error information corresponding to the encoded binary error signal may be determined based on the syndrome.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: January 13, 2015
    Assignee: Marvell International Ltd.
    Inventors: Jun Zhu, Peter Tze-Hwa Liu, Joseph Jun Cao
  • Publication number: 20150010044
    Abstract: Methods, systems, and apparatuses are described for reducing the latency in a transceiver. A transceiver includes a high latency communication channel and a low latency communication channel that is configured to be a bypass channel for the high latency communication channel. The low latency communication channel may be utilized when implementing the transceiver is used in low latency applications. By bypassing the high latency communication channel, the high latency that is introduced therein (due to the many stages of de-serialization used to reduce the data rate for digital processing) can be avoided. An increase in data rate is realized when the low latency communication channel is used to pass data. A delay-locked loop (DLL) may be used to phase align the transmitter clock of the transceiver with the receiver clock of the transceiver to compensate for a limited tolerance of phase offset between these clocks.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Inventors: Heng Zhang, Mehdi Khanpour, Jun Cao, Chang Liu, Afshin Momtaz
  • Publication number: 20150008982
    Abstract: Techniques are described herein that adaptively suppress harmonic distortion in an amplifier utilizing negative gain. The amplifier includes a first amplifier stage and a second amplifier stage, which are coupled in parallel. The first amplifier stage has a positive gain. The second amplifier stage has a negative gain to suppress total harmonic distortion of a system that includes the amplifier. The amplifier further includes shunt-peaking circuitry coupled to the first amplifier stage and the second amplifier stage to increase a maximum operating frequency at which the amplifier is capable of operating.
    Type: Application
    Filed: September 30, 2013
    Publication date: January 8, 2015
    Applicant: Broadcom Corporation
    Inventors: Kuo-J Huang, Delong Cui, Jun Cao, Afshin Doctor Momtaz, Iuri Mehr, Ramon Alejandro Gomez
  • Patent number: 8928355
    Abstract: There is presented a high bandwidth circuit for high-speed transceivers. The circuit may comprise an amplifier combining capacitor splitting, inductance tree structures, and various bandwidth extension techniques such as shunt peaking, series peaking, and T-coil peaking to support data rates of 45 Gbs/s and above while reducing data jitter. The inductance elements of the inductance tree structures may also comprise high impedance transmission lines, simplifying implementation. Additionally, the readily identifiable metal structures of inductors and t-coils, the equal partitioning of the load capacitors, and the symmetrical inductance tree structures may simplify transceiver implementation for, but not limited to, a clock data recovery circuit.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: January 6, 2015
    Assignee: Broadcom Corporation
    Inventors: Delong Cui, Afshin Momtaz, Jun Cao
  • Patent number: 8931049
    Abstract: A trusted network connection implementing method based on Tri-element Peer Authentication is provided in present invention, the method includes: step 1, configuring and initializing; step 2, requesting for network connection, wherein an access requester sends a network connection request to and access controller, and the access controller receives the network connection request; step 3, authenticating user ID; and step 4, authenticating a platform. The invention enhances the safety of the trusted network connection implementing method, widens the application range of the trusted network connection implementing method based on the Tri-element Peer Authentication, satisfies requirements of different network apparatuses and improves the efficiency of the trusted network connection implementing method based on the Tri-element Peer Authentication.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: January 6, 2015
    Assignee: China Iwncomm Co., Ltd.
    Inventors: Yuelei Xiao, Jun Cao, Li Ge, Zhenhai Huang
  • Patent number: 8913706
    Abstract: A circuit for producing one of a plurality of output clock frequencies from a single, constant input reference clock frequency. The circuit comprises a reference clock system and a phase lock loop. The reference clock system includes a bypass path, a divider path including a first integer divider, and a multiplexer. A divisor of the first integer divider is based on a selected communications protocol of a group of possible communications protocols. The multiplexer is configured to route the bypass path or the divider path based on the selected communications protocol. The phase lock loop includes a voltage controlled oscillator and a feedback path. The feedback path includes a second integer divider. A divisor of the second integer divider is based on the selected communications protocol. The reference clock system is configured to receive a constant reference clock frequency.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Jun Cao, Afshin Momtaz, Chung-Jue Chen, Kang Xiao, Vivek Telang, Ali Ghiasi
  • Patent number: 8913751
    Abstract: A key management and node authentication method for a sensor network is disclosed. The method comprises the following steps of: 1) keys pre-distribution: before deploying the network, communication keys for establishing security connection between nodes are pre-distributed to all of nodes by a deployment server. 2) Keys establishment: after deploying the network, a pair key for the security connection is established between nodes, which includes the following steps of: 2.1) establishment of shared keys: the pair key is established between neighbor nodes in which the shared keys are existed; 2.2) path keys establishment: the pair key is established between the nodes in which there is no shared keys but there is a multi-hop security connection. 3) Node identity (ID) authentication: before formally communicating between nodes, the identity is authenticated so as to determine the legality and the validity of the identity of the other.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: December 16, 2014
    Assignee: China IWNCOMM Co. Ltd.
    Inventors: Zhiqiang Du, Jun Cao, Manxia Tie, Zhenhai Huang
  • Publication number: 20140359207
    Abstract: Systems and methods for timing read operations with a memory device are provided. A timing signal from the memory device is received at a gating circuit. The timing signal is passed through as a filtered timing signal during a gating window. The gating circuit is configured to open the gating window based on a control signal. The gating circuit is further configured to close the gating window based on a first edge of the timing signal. The first edge is determined based on a counter that is triggered to begin counting by the control signal. At a timing control circuit, the control signal is generated based on i) a count signal from the counter, and ii) a second edge of the timing signal that precedes the first edge in time.
    Type: Application
    Filed: May 15, 2014
    Publication date: December 4, 2014
    Applicant: Marvell World Trade Ltd.
    Inventors: Jun Zhu, Joseph Jun Cao, Shaw Chen