Patents by Inventor Ryan Edgar Hirth
Ryan Edgar Hirth 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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Patent number: 10320678Abstract: An IDLE insertion technique maps MPCP time onto an EPoC PHY. The techniques address the variability of bandwidth due to bit loading over time. The techniques allow MPCP time to follow wall time at the MAC layer while tracking bytes at the PMD layer. The techniques also facilitate use of the EPON MAC with few changes in an EPoC environment. The bandwidth allocation messages may follow the same format as in EPON, and the techniques may implement IDLE insertion that accounts for EPoC PHY FEC overhead and datarate differences compared to the MAC.Type: GrantFiled: March 13, 2015Date of Patent: June 11, 2019Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventor: Ryan Edgar Hirth
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Patent number: 9369212Abstract: A system, method and apparatus for power saving using burst-mode transmission over point-to-point physical connections. In one embodiment, a physical layer device (PHY) is provided that includes a data detector that is configured to generate a first control signal upon receipt of a non-idle code group over an interface between the PHY and a media access control (MAC) device and to generate a second control signal when all data received from the MAC device has been transmitted by the physical layer device. The PHY also includes a laser for transmission of data over an optical network cable, the laser being configured to perform a first transition from an off state to an on state based on the first control signal, and to perform a second transition from the on state back to the off state based on the second control signal.Type: GrantFiled: August 27, 2013Date of Patent: June 14, 2016Assignee: BROADCOM CORPORATIONInventors: Glen Kramer, Lowell David Lamb, Jaroslaw Wojtowicz, Ryan Edgar Hirth
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Patent number: 9300427Abstract: In general, the 1G-EPON standard specifies its upstream waveband broadly to allow for low cost lasers to be used to transmit upstream. Often, however, the lasers actually used by many 1G-ONUs to transmit upstream only occupy a narrow waveband that does not overlap with the upstream waveband specified by the 10G-EPON standard. The present disclosure is directed to systems and methods that exploit this fact to efficiently provide for the coexistence of 10G-EPON and 1G-EPON over the same set of optical fibers in the upstream direction.Type: GrantFiled: September 30, 2013Date of Patent: March 29, 2016Assignee: Broadcom CorporationInventors: Ryan Edgar Hirth, Glen Kramer
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Patent number: 9294370Abstract: A system and method for reduced latency reporting in an Ethernet passive optical network (EPON). Gate messages can be generated by a bridged fiber coax unit (FCU) in response to a first report message from a coax network unit (CNU). A second report message including a request for bandwidth can be transmitted to the optical line terminal (OLT) prior to receipt of upstream data at the FCU.Type: GrantFiled: December 13, 2013Date of Patent: March 22, 2016Assignee: BROADCOM CORPORATIONInventor: Ryan Edgar Hirth
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Publication number: 20150271074Abstract: An IDLE insertion technique maps MPCP time onto an EPoC PHY. The techniques address the variability of bandwidth due to bit loading over time. The techniques allow MPCP time to follow wall time at the MAC layer while tracking bytes at the PMD layer. The techniques also facilitate use of the EPON MAC with few changes in an EPoC environment. The bandwidth allocation messages may follow the same format as in EPON, and the techniques may implement IDLE insertion that accounts for EPoC PHY FEC overhead and datarate differences compared to the MAC.Type: ApplicationFiled: March 13, 2015Publication date: September 24, 2015Inventor: Ryan Edgar Hirth
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Publication number: 20150163107Abstract: A system and method for reduced latency reporting in an Ethernet passive optical network (EPON). Gate messages can be generated by a bridged fiber coax unit (FCU) in response to a first report message from a coax network unit (CNU). A second report message including a request for bandwidth can be transmitted to the optical line terminal (OLT) prior to receipt of upstream data at the FCU.Type: ApplicationFiled: December 13, 2013Publication date: June 11, 2015Applicant: Broadcom CorporationInventor: Ryan Edgar Hirth
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Publication number: 20150093108Abstract: In general, the 1G-EPON standard specifies its upstream waveband broadly to allow for low cost lasers to be used to transmit upstream. Often, however, the lasers actually used by many 1G-ONUs to transmit upstream only occupy a narrow waveband that does not overlap with the upstream waveband specified by the 10G-EPON standard. The present disclosure is directed to systems and methods that exploit this fact to efficiently provide for the coexistence of 10G-EPON and 1G-EPON over the same set of optical fibers in the upstream direction.Type: ApplicationFiled: September 30, 2013Publication date: April 2, 2015Inventors: Ryan Edgar HIRTH, Glen Kramer
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Patent number: 8964538Abstract: Embodiments of an apparatus including a user network interface configured to receive from a network a packet to be transmitted upstream over a PON are provided herein. The packet is marked with a first category type or a second category type. The apparatus further includes an upstream first in, first out (FIFO) queue configured to store the packet if the packet is marked with the first category type or the second category type.Type: GrantFiled: June 30, 2011Date of Patent: February 24, 2015Assignee: Broadcom CorporationInventors: Glen Kramer, Ryan Edgar Hirth, Robin Grindley, Edward Wayne Boyd
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Patent number: 8942560Abstract: The present disclosure is directed to a method and apparatus for maintaining sub-queues at an ONU and for maintaining a count of an amount of data stored in each sub-queue or a count of an amount of data associated with elements stored in each sub-queue. The sub-queues represent partitions in a first in, first out (FIFO) queue used by the ONU to buffer packets, or elements that are associated with packets, to be sent upstream. The sub-queues are coupled in series such that the output of a first sub-queue feeds the input of a second sub-queue, the output of the second sub-queue feeds the input of a third sub-queue, etc. Each sub-queue has a defined threshold that sets a maximum amount of packet data it can buffer or the elements in which it buffers can be associated with.Type: GrantFiled: March 12, 2012Date of Patent: January 27, 2015Assignee: Broadcom CorporationInventors: Ryan Edgar Hirth, Glen Kramer, Mitchell Gordon McGee
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Publication number: 20150023660Abstract: A system, method and apparatus for power saving using burst-mode transmission over point-to-point physical connections. In one embodiment, a physical layer device (PHY) is provided that includes a data detector that is configured to generate a first control signal upon receipt of a non-idle code group over an interface between the PHY and a media access control (MAC) device and to generate a second control signal when all data received from the MAC device has been transmitted by the physical layer device. The PHY also includes a laser for transmission of data over an optical network cable, the laser being configured to perform a first transition from an off state to an on state based on the first control signal, and to perform a second transition from the on state back to the off state based on the second control signal.Type: ApplicationFiled: August 27, 2013Publication date: January 22, 2015Applicant: Broadcom CorporationInventors: Glen Kramer, Lowell David Lamb, Jaroslaw Wojtowicz, Ryan Edgar Hirth
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Patent number: 8903250Abstract: Systems and methods are disclosed to provide an upstream rate between 1 Gbps and 10 Gbps in a cost effective manner in a 10 GEPON. In an embodiment, an optical network unit (ONU) transmitter includes a burst transceiver and a physical layer (PHY) including a high performance digital to analog converter (DAC), a pulse amplitude modulation (PAM) module configured to encode end user data using a modulation scheme having more than two levels, and a laser. The ONU transmitter transmits the encoded end user data to an optical line terminal (OLT) receiver, which demodulates the data using a PAM demodulator and sends it to a service provider.Type: GrantFiled: June 1, 2011Date of Patent: December 2, 2014Assignee: Broadcom CorporationInventors: Edward Wayne Boyd, Ryan Edgar Hirth, Rick Weidong Li
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Patent number: 8548323Abstract: Embodiments of a scalable optical network unit (ONU) architecture for multi-dwelling units (MDUs) that has a low initial cost (or first port cost) and a low maintenance cost are provided herein. The ONU architecture is scalable in that a growing number of end users can share a single drop fiber that couples the ONU to a passive optical network. The ONU architecture utilizes a multiplexer module to allow the ONU to be daisy chained with one or more additional ONUs.Type: GrantFiled: April 18, 2011Date of Patent: October 1, 2013Assignee: Broadcom CorporationInventors: Ryan Edgar Hirth, Robin C. Grindley, Rajiv S. Dighe, Glen Kramer, Thyagarajan T. Subramanian, Vafa Christopher Moezzi, Edward Wayne Boyd
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Publication number: 20130177313Abstract: The present disclosure is directed to a method and apparatus for maintaining sub-queues at an ONU and for maintaining a count of an amount of data stored in each sub-queue or a count of an amount of data associated with elements stored in each sub-queue. The sub-queues represent partitions in a first in, first out (FIFO) queue used by the ONU to buffer packets, or elements that are associated with packets, to be sent upstream. The sub-queues are coupled in series such that the output of a first sub-queue feeds the input of a second sub-queue, the output of the second sub-queue feeds the input of a third sub-queue, etc. Each sub-queue has a defined threshold that sets a maximum amount of packet data it can buffer or the elements in which it buffers can be associated with.Type: ApplicationFiled: March 12, 2012Publication date: July 11, 2013Applicant: Broadcom CorporationInventors: Ryan Edgar HIRTH, Glen Kramer, Mitchell Gordon McGee
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Publication number: 20120076495Abstract: Embodiments of an apparatus including a user network interface configured to receive from a network a packet to be transmitted upstream over a PON are provided herein. The packet is marked with a first category type or a second category type. The apparatus further includes an upstream first in, first out (FIFO) queue configured to store the packet if the packet is marked with the first category type or the second category type.Type: ApplicationFiled: June 30, 2011Publication date: March 29, 2012Applicant: Broadcom CorporationInventors: Glen KRAMER, Ryan Edgar Hirth, Robin Grindley, Edward Wayne Boyd
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Publication number: 20120045209Abstract: Systems and methods are disclosed to provide an upstream rate between 1 Gbps and 10 Gbps in a cost effective manner in a 10GEPON. In an embodiment, an optical network unit (ONU) transmitter includes a burst transceiver and a physical layer (PHY) including a high performance digital to analog converter (DAC), a pulse amplitude modulation (PAM) module configured to encode end user data using a modulation scheme having more than two levels, and a laser. The ONU transmitter transmits the encoded end user data to an optical line terminal (OLT) receiver, which demodulates the data using a PAM demodulator and sends it to a service provider.Type: ApplicationFiled: June 1, 2011Publication date: February 23, 2012Applicant: Broadcom CorporationInventors: Edward Wayne BOYD, Ryan Edgar HIRTH, Rick Weidong Li
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Publication number: 20110262132Abstract: Embodiments of a scalable optical network unit (ONU) architecture for multi-dwelling units (MDUs) that has a low initial cost (or first port cost) and a low maintenance cost are provided herein. The ONU architecture is scalable in that a growing number of end users can share a single drop fiber that couples the ONU to a passive optical network. The ONU architecture utilizes a multiplexer module to allow the ONU to be daisy chained with one or more additional ONUs.Type: ApplicationFiled: April 18, 2011Publication date: October 27, 2011Applicant: Broadcom CorporationInventors: Robin C. Grindley, Rajiv S. Dighe, Glen Kramer, Thyagarajan T. Subramanian, Vafa Christopher Moezzi, Edward Wayne Boyd, Ryan Edgar HIRTH
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Patent number: 5663634Abstract: A flyback converter using a commercially available voltage regulator with protection mode includes a bypass resistor between the input and output of the voltage regulator to drain charge from the input stage during powerup thereby preventing the regulator from locking in protection mode.Type: GrantFiled: April 30, 1996Date of Patent: September 2, 1997Assignee: 3COM CorporationInventors: Marwan Ahmad Fawal, Cameron Lyle Spitzer, Ryan Edgar Hirth