Patents by Inventor Yitshak Ohana

Yitshak Ohana 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: 10938444
    Abstract: A full duplex repeater includes an upstream echo canceller and noise reduction circuitry. The noise reduction circuitry is configured to receive an upstream signal from the upstream echo canceller, separate the upstream signal into a plurality of Fast Fourier Transform (FFT) blocks, multiply the upstream signal by a 100% raised cosine window, convert the upstream signal into frequency domain using FFT, clean predetermined portions of the upstream signal in the FFT blocks based on a predetermined threshold, convert the upstream signal from frequency domain to time domain using Inverse FFT; and recombine the FFT blocks.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 2, 2021
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Avraham Kliger, Anatoli Shindler, Yitshak Ohana
  • Publication number: 20210013924
    Abstract: A full duplex repeater includes an upstream echo canceller and noise reduction circuitry. The noise reduction circuitry is configured to receive an upstream signal from the upstream echo canceller, separate the upstream signal into a plurality of Fast Fourier Transform (FFT) blocks, multiply the upstream signal by a 100% raised cosine window, convert the upstream signal into frequency domain using FFT, clean predetermined portions of the upstream signal in the FFT blocks based on a predetermined threshold, convert the upstream signal from frequency domain to time domain using Inverse FFT; and recombine the FFT blocks.
    Type: Application
    Filed: August 20, 2019
    Publication date: January 14, 2021
    Applicant: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Avraham Kliger, Anatoli Shindler, Yitshak Ohana
  • Patent number: 10560437
    Abstract: A device may include a processor circuit configured to transmit, over a network medium, a request for transmission of a data communication to a first device of a network, and receive, over the network medium, a grant of the request. When the first device is associated with a first security profile, the processor circuit may be configured to encrypt the data communication based at least on a first password associated with the first security profile. When the first device is associated with a second security profile, the processor circuit may be configured to encrypt the data communication based at least on a second password associated with the second security profile. The second password may be associated with a higher password strength than the first password. The processor circuit may be configured to transmit, over the network medium, the encrypted data communication to the first device in response to the grant.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: February 11, 2020
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Philippe Klein, Avraham Kliger, Yitshak Ohana
  • Patent number: 10237824
    Abstract: A device for power efficient networking may include a processor circuit configured to identify a time to enter a low power state. The processor circuit may be further configured to transmit, prior to the identified time, transmission parameters to a network coordinator device for a network of devices, the transmission parameters being associated with a transmission from at least one of the devices to the device. The processor circuit may be further configured to enter the low power state at the identified time. The processor circuit may be further configured to, upon exiting the low power state, receive the transmission from at least one of the devices based at least in part on the transmission parameters. The processor circuit may be further configured to receive the transmission without participating in a node admission process after exiting the low power state.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: March 19, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Avraham Kliger, Yitshak Ohana
  • Publication number: 20190081749
    Abstract: A device for coordinating frequency division multiplexing transmissions over a shared transmission medium may include a processor circuit configured to receive bandwidth requests from devices for transmissions over the shared transmission medium during a time period. A first bandwidth request may correspond to a point-to-multipoint transmission over the shared transmission medium. The processor circuit may be further configured to schedule bandwidth allocations on the shared transmission medium for the time period based at least in part on the bandwidth requests, where a first bandwidth allocation that corresponds to the first point-to-multipoint transmission is scheduled during the time period prior to other bandwidth allocations. The processor circuit may be further configured to transmit, over the shared transmission medium, an indication of the bandwidth allocations.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 14, 2019
    Inventors: Avraham KLIGER, Yitshak OHANA
  • Publication number: 20190014091
    Abstract: A device may include a processor circuit configured to transmit, over a network medium, a request for transmission of a data communication to a first device of a network, and receive, over the network medium, a grant of the request. When the first device is associated with a first security profile, the processor circuit may be configured to encrypt the data communication based at least on a first password associated with the first security profile. When the first device is associated with a second security profile, the processor circuit may be configured to encrypt the data communication based at least on a second password associated with the second security profile. The second password may be associated with a higher password strength than the first password. The processor circuit may be configured to transmit, over the network medium, the encrypted data communication to the first device in response to the grant.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 10, 2019
    Inventors: Philippe KLEIN, Avraham KLIGER, Yitshak OHANA
  • Patent number: 10158457
    Abstract: A device for coordinating frequency division multiplexing transmissions over a shared transmission medium may include a processor circuit configured to receive bandwidth requests from devices for transmissions over the shared transmission medium during a time period. A first bandwidth request may correspond to a point-to-multipoint transmission over the shared transmission medium. The processor circuit may be further configured to schedule bandwidth allocations on the shared transmission medium for the time period based at least in part on the bandwidth requests, where a first bandwidth allocation that corresponds to the first point-to-multipoint transmission is scheduled during the time period prior to other bandwidth allocations. The processor circuit may be further configured to transmit, over the shared transmission medium, an indication of the bandwidth allocations.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: December 18, 2018
    Assignee: Avago Technologies International Sales PTE. Limited
    Inventors: Avraham Kliger, Yitshak Ohana
  • Patent number: 10148798
    Abstract: A communication device is configured to support communications with other devices using a physical layer (PHY)/MAC interface (PMI) protocol. For example, a first device that includes PHY component(s) may be located remotely with respect to one or more other entities that manage and control it. In one example, a second device generates (core receives from another device) a MAC message that is based on the PMI protocol and generates a PHY message based thereon. This first device and then transmits the PHY message to the first device for use by the first device to configure PHY operational parameter(s). Generally, different messages are communicated between devices based on the PMI protocol. The first device, which may generally be referred to as a remote PHY device (RPD), can be managed and controlled by one or more other devices located separately therefrom.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: December 4, 2018
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventor: Yitshak Ohana
  • Patent number: 10079808
    Abstract: A device may include a processor circuit configured to transmit, over a network medium, a request for transmission of a data communication to a first device of a network, and receive, over the network medium, a grant of the request. When the first device is associated with a first security profile, the processor circuit may be configured to encrypt the data communication based at least on a first password associated with the first security profile. When the first device is associated with a second security profile, the processor circuit may be configured to encrypt the data communication based at least on a second password associated with the second security profile. The second password may be associated with a higher password strength than the first password. The processor circuit may be configured to transmit, over the network medium, the encrypted data communication to the first device in response to the grant.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: September 18, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Philippe Klein, Avraham Kliger, Yitshak Ohana
  • Patent number: 9906325
    Abstract: A communication device includes a media access control (MAC) and a physical layer (PHY) processor and supports multi-profile communications with one or more other communication devices. The PHY processor selects a profile based on one or more characteristics of a communication pathway between the device and the one or more other communication devices. A profile may include operational parameters such as modulation coding set (MCS), forward error correction (FEC) and/or error correction code (ECC), a number of bits per symbol per sub-carrier and/or sub-carrier mapping (e.g., such as based on orthogonal frequency division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA)), cyclic prefix, channel(s) used in transmission, bit-filling and shortening, unicast and/or multicast transmission, and/or other operational parameters.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: February 27, 2018
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Yitshak Ohana, Avi Kliger, Thomas J. Kolze
  • Patent number: 9906299
    Abstract: A method and system for generating a data frame in an upstream frame in an Ethernet Passive Optical Network protocol over Coax (EPoC) network is provided. The data frame includes a plurality of resource blocks, each of a particular type. The resource blocks are arranged in the data frame in accordance with pilot rules and a pilot pattern.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: February 27, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Avi Kliger, Yitshak Ohana, Anatoli Shindler
  • Patent number: 9860617
    Abstract: A method and system for generating upstream frames in an Ethernet Passive Optical Network protocol over Coax (EPoC) network is provided. Upstream frame configuration parameters are received by a CNU from a CLT in a link info broadcast a message. The CNU can recover the upstream frame configuration parameters from the link info broadcast message and generate at least in part upstream frame.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: January 2, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Mark Laubach, Avi Kliger, Yitshak Ohana, Ryan Hirth
  • Patent number: 9807692
    Abstract: A network device includes one or more memories and one or more processor circuits coupled to the one or more memories. The one or more processor circuits are configured to cause providing for transmission a request directed to a network controller to change a power state of the network device, receiving a grant from the network controller in response to the request, and changing the power state of the network device in response to receiving the grant. The power state of the network device includes a running power state and a standby power state, where the standby power state includes an active mode and an idle mode. A network controller for granting a request from the network device to change a power state of the network device is also disclosed.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: October 31, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Philippe Klein, Avraham Kliger, Yitshak Ohana
  • Patent number: 9641456
    Abstract: Apparatus and methods for reducing latency in coordinated networks are provided. The apparatus and methods relate to a protocol that may be referred to as the Persistent Reservation Request (“p-RR”), which may be viewed as a type of RR (reservation request). p-RR's may reduce latency, on average, to one MAP cycle or less. A p-RR may be used to facilitate Ethernet audiovisual bridging. Apparatus and methods of the invention may be used in connection with coaxial cable based networks that serve as a backbone for a managed network, which may interface with a package switched network.
    Type: Grant
    Filed: September 30, 2012
    Date of Patent: May 2, 2017
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Yitshak Ohana, Philippe Klein, Avi Kliger, Stephen Palm
  • Publication number: 20170078252
    Abstract: A device may include a processor circuit configured to transmit, over a network medium, a request for transmission of a data communication to a first device of a network, and receive, over the network medium, a grant of the request. When the first device is associated with a first security profile, the processor circuit may be configured to encrypt the data communication based at least on a first password associated with the first security profile. When the first device is associated with a second security profile, the processor circuit may be configured to encrypt the data communication based at least on a second password associated with the second security profile. The second password may be associated with a higher password strength than the first password. The processor circuit may be configured to transmit, over the network medium, the encrypted data communication to the first device in response to the grant.
    Type: Application
    Filed: November 17, 2015
    Publication date: March 16, 2017
    Inventors: Philippe KLEIN, Avraham KLIGER, Yitshak OHANA
  • Patent number: 9554177
    Abstract: Systems and methods for transmitting packets over a network of communication channels are provide. A system according to the invention may include first and second nodes in communication with a coax backbone. The first node may further include a retransmission buffer. The system may also include a network access coordinator operative to coordinate access of the nodes to the coax backbone. In a time period at least one first packet is transmitted by the first node to the second node. The first packet may include an indication that retransmission service is applied. The first packet may also include a indication of the length corresponding to the packet. If, during the first time period the packet is not received by the second node, the second node is operative to send a retransmission request to the network access coordinator.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 24, 2017
    Assignee: Broadcom Corporation
    Inventors: Yitshak Ohana, Philippe Klein, Avi Kliger
  • Patent number: 9548836
    Abstract: The present disclosure is directed to a system and method for detecting burst noise. The system and method are described in the exemplary context of a cable modem system and can be used in such a system to specifically detect upstream burst noise. Once detected, the system and method can adjust the upstream receiver that receives data corrupted by the upstream burst noise to reduce the potentially deleterious effects that the burst noise can have on, for example, the packet error rate and/or data rate of the upstream receiver.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 17, 2017
    Assignee: Broadcom Corporation
    Inventors: Yitshak Ohana, Avi Kliger, Anatoli Shindler, Bazhong Shen
  • Patent number: 9531619
    Abstract: A method for assessing channel performance in a network is provided. The network includes a network controller and nodes. The method preferably includes selecting a channel for assessment and allocating a first probe operation for use with the nodes. The method may also include, in response to the allocating, sending a first probe operation report message from each of the nodes to the network controller. The method may further include using the network controller to select a node to be a channel assessment operation node. In addition, the method may include selecting at least a portion of the nodes to participate in a channel assessment operation signal exchange. The method may also include moving the selected nodes to a different channel to perform a channel assessment operation on the different channel and using the channel assessment operation node to allocate a second probe operation on each of the selected nodes.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 27, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Avi Kliger, Philippe Klein, Yitshak Ohana
  • Patent number: 9485093
    Abstract: Systems, methods, and devices for pairing devices in a wired network are provided. One method includes receiving configuration request signals at multiple devices. The method further includes exchanging public keys between two devices, generating a shared key using the public keys, determining a protected channel key using the shared key, and establishing a protected channel between the devices using the protected channel key. The method further includes transferring privacy credentials from one device to the other using the protected channel and using the privacy credentials to pair another device to the network.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: November 1, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Philippe Klein, Yitshak Ohana
  • Patent number: 9479621
    Abstract: Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modern without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSIS and EPoC standards.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: October 25, 2016
    Assignee: Broadcom Corporation
    Inventors: Avi Kliger, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou