Patents by Inventor Hongtao Jiang
Hongtao Jiang 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: 9037940Abstract: Aspects of a method and system for encoding in 100G-KR networking are described. In one example embodiment, a coding method uses certain forward error correcting codes based on a given transcoding method and delivers the codes according to burst interleaving. In another example, a coding method includes receiving source data from a plurality of physical lanes, combining data from the physical lanes to generate a block, transcoding the block, and encoding a data stream including the transcoded block.Type: GrantFiled: February 21, 2014Date of Patent: May 19, 2015Assignee: BROADCOM CORPORATIONInventors: Zhongfeng Wang, Hongtao Jiang, Chung-Jue Chen, Kang Xiao
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Patent number: 8972829Abstract: A communication system and a method are provided. The communication system includes an encoder configured to encode source data and output an encoded frame including a mother code or a plurality of concatenated daughter codes based on an encoding option. The mother code and the plurality of concatenated daughter codes have a same number of coded data symbols. The mother code includes a first source number of source symbols and a first parity number of parity symbols. The daughter code includes fewer source symbols and fewer parity symbols than the mother code.Type: GrantFiled: December 4, 2012Date of Patent: March 3, 2015Assignee: Broadcom CorporationInventors: Zhongfeng Wang, Hongtao Jiang, Chung-Jue Chen
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Patent number: 8880983Abstract: Communication device employing binary product coding with selective additional cyclic redundancy check (CRC) therein. Product code encoding (e.g., employing row and column encoding of matrix formatted bits, selectively with interleaving and/or permutation of the bits therein) may be combined with additional error correction code (ECC) or forward error correction (FEC) coding thereby generating coded bits for use in generating a signal to be launched into a communication channel Various ECCs/FECs may be employed including a BCH (Bose and Ray-Chaudhuri, and Hocquenghem) code, a Reed-Solomon (RS) code, an LDPC (Low Density Parity Check) code, etc. The redundancy of such coded signals as generated using the principles herein is in the range of approximately 7%, and hard decision decoding may be performed on such coded signals generated herein. In accordance with decoding such (e.g.Type: GrantFiled: October 25, 2013Date of Patent: November 4, 2014Assignee: Broadcom CorporationInventors: Zhongfeng Wang, Chung-Jue Chen, Kang Xiao, Hongtao Jiang, James R. Fife, Sudeep Bhoja
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Publication number: 20140173384Abstract: Aspects of a method and system for encoding in 100G-KR networking are described. In one example embodiment, a coding method uses certain forward error correcting codes based on a given transcoding method and delivers the codes according to burst interleaving. In another example, a coding method includes receiving source data from a plurality of physical lanes, combining data from the physical lanes to generate a block, transcoding the block, and encoding a data stream including the transcoded block.Type: ApplicationFiled: February 21, 2014Publication date: June 19, 2014Applicant: Broadcom CorporationInventors: Zhongfeng Wang, Hongtao Jiang, Chung-Jue Chen, Kang Xiao
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Publication number: 20140122976Abstract: A communication system and a method are disclosed. The communication system includes an encoder configured to encode source data and output an encoded frame including a mother code or a plurality of concatenated daughter codes based on an encoding option. The mother code and the plurality of concatenated daughter codes have a same number of coded data symbols. The mother code includes a first source number of source symbols and a first parity number of parity symbols. The daughter code includes fewer source symbols and fewer parity symbols than the mother code.Type: ApplicationFiled: December 4, 2012Publication date: May 1, 2014Applicant: Broadcom CorporationInventors: Zhongfeng Wang, Hongtao Jiang, Chung-Jue Chen
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Patent number: 8712254Abstract: Electronic dispersion compensation within optical communications using reconstruction. Within a communication system that includes any optical network portion, segment, or communication link, etc., that optical component/portion of the communication system is emulated within the electronic domain. For example, in a communication device having receiver functionality, deficiencies that may be incurred by the at least one optical portion of the communication system are compensated in the electronic domain of the communication device having the receiver functionality by employing reconstruction logic and/or circuitry therein. Multiple decision feedback equalizers (DFE) circuitries, implemented in the electronic domain, may be employed to provide feedback from different portions of the receiver functionality in accordance with performing compensation of optical incurred deficiencies (e.g., dispersion, non-linearity, inter-symbol interference (ISI), etc.).Type: GrantFiled: September 10, 2009Date of Patent: April 29, 2014Assignee: Broadcom CorporationInventors: Hongtao Jiang, Kang Xiao, Jun Cao, Chung-Jue Chen, Zhongfeng Wang
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Patent number: 8689089Abstract: Various examples are provided for encoding for 100G-KR networking. In one example, among others, a coding method uses certain forward error correcting codes based on a given transcoding method and delivers the codes according to burst interleaving. In another example, a coding method includes receiving source data from a plurality of physical lanes, combining data from the physical lanes to generate a block, transcoding the block and encoding a data stream including the transcoded block.Type: GrantFiled: January 6, 2012Date of Patent: April 1, 2014Assignee: Broadcom CorporationInventors: Zhongfeng Wang, Hongtao Jiang, Chung-Jue Chen, Kang Xiao
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Publication number: 20140053042Abstract: Communication device employing binary product coding with selective additional cyclic redundancy check (CRC) therein. Product code encoding (e.g., employing row and column encoding of matrix formatted bits, selectively with interleaving and/or permutation of the bits therein) may be combined with additional error correction code (ECC) or forward error correction (FEC) coding thereby generating coded bits for use in generating a signal to be launched into a communication channel Various ECCs/FECs may be employed including a BCH (Bose and Ray-Chaudhuri, and Hocquenghem) code, a Reed-Solomon (RS) code, an LDPC (Low Density Parity Check) code, etc. The redundancy of such coded signals as generated using the principles herein is in the range of approximately 7%, and hard decision decoding may be performed on such coded signals generated herein. In accordance with decoding such signals, various bit decisions (within certain iterations) may be selectively ignored and/or reverted back to previous bit decisions.Type: ApplicationFiled: October 25, 2013Publication date: February 20, 2014Applicant: BROADCOM CORPORATIONInventors: Zhongfeng Wang, Chung-Jue Chen, Kang Xiao, Hongtao Jiang, James R. Fife, Sudeep Bhoja
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Patent number: 8572460Abstract: Communication device employing binary product coding with selective additional cyclic redundancy check (CRC) therein. Product code encoding (e.g., employing row and column encoding of matrix formatted bits, selectively with interleaving and/or permutation of the bits therein) may be combined with additional error correction code (ECC) or forward error correction (FEC) coding thereby generating coded bits for use in generating a signal to be launched into a communication channel. Various ECCs/FECs may be employed including a BCH (Bose and Ray-Chaudhuri, and Hocquenghem) code, a Reed-Solomon (RS) code, an LDPC (Low Density Parity Check) code, etc. The redundancy of such coded signals as generated using the principles herein is in the range of approximately 7%, and hard decision decoding may be performed on such coded signals generated herein. In accordance with decoding such signals, various bit decisions (within certain iterations) may be selectively ignored and/or reverted back to previous bit decisions.Type: GrantFiled: March 17, 2010Date of Patent: October 29, 2013Assignee: Broadcom CorporationInventors: Zhongfeng Wang, Chung-Jue Chen, Kang Xiao, Hongtao Jiang, James R. Fife, Sudeep Bhoja
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Publication number: 20120179949Abstract: In one embodiment, a coding method that uses certain forward error correcting codes based on a given transcoding method and delivers the codes according to burst interleaving.Type: ApplicationFiled: January 6, 2012Publication date: July 12, 2012Applicant: BROADCOM CORPORATIONInventors: Zhongfeng Wang, Hongtao Jiang, Chung-Jue Chen, Kang Xiao
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Patent number: 8160109Abstract: Aspects of the invention provide a method and system for synchronizing a transceiver and a framer in an optical transmission network. Subsequent to achieving synchronization of an inbound data stream, an internal framer may be adapted to inform a downstream device such as a full framer, that synchronization has already been attained. Accordingly, the downstream device may not need to perform resynchronization of the inbound data and can immediately start processing the inbound data. Advantageously, the internal framer may provide expedited error checking, handling and reporting prior to receipt of the data by the downstream device.Type: GrantFiled: December 27, 2002Date of Patent: April 17, 2012Assignee: Broadcom CorporationInventors: Jay Proano, Sheila Oiu, Tim Chan, Hongtao Jiang
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Publication number: 20110052216Abstract: Electronic dispersion compensation within optical communications using reconstruction. Within a communication system that includes any optical network portion, segment, or communication link, etc., that optical component/portion of the communication system is emulated within the electronic domain. For example, in a communication device having receiver functionality, deficiencies that may be incurred by the at least one optical portion of the communication system are compensated in the electronic domain of the communication device having the receiver functionality by employing reconstruction logic and/or circuitry therein. Multiple decision feedback equalizers (DFE) circuitries, implemented in the electronic domain, may be employed to provide feedback from different portions of the receiver functionality in accordance with performing compensation of optical incurred deficiencies (e.g., dispersion, non-linearity, inter-symbol interference (ISI), etc.).Type: ApplicationFiled: September 10, 2009Publication date: March 3, 2011Applicant: BROADCOM CORPORATIONInventors: Hongtao Jiang, Kang Xiao, Jun Cao, Chung-Jue Chen, Zhongfeng Wang
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Patent number: 7840134Abstract: A system (50) includes a communication path (170) and transmits data on a network (103, 106). A transmitter (101) transmits data on the network and a receiver (112) receives data from the network. A component (102, 114) in the communication path has a transfer characteristic (C1, C2, C3) adjusted in response to errors in data transmitted over and received from the network in order to reduce the error rate.Type: GrantFiled: June 16, 2009Date of Patent: November 23, 2010Assignee: Broadcom CorporationInventors: Nong Fan, Tuan Hoang, Hongtao Jiang, Keh-Chee Jen
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Publication number: 20100241926Abstract: Communication device employing binary product coding with selective additional cyclic redundancy check (CRC) therein. Product code encoding (e.g., employing row and column encoding of matrix formatted bits, selectively with interleaving and/or permutation of the bits therein) may be combined with additional error correction code (ECC) or forward error correction (FEC) coding thereby generating coded bits for use in generating a signal to be launched into a communication channel. Various ECCs/FECs may be employed including a BCH (Bose and Ray-Chaudhuri, and Hocquenghem) code, a Reed-Solomon (RS) code, an LDPC (Low Density Parity Check) code, etc. The redundancy of such coded signals as generated using the principles herein is in the range of approximately 7%, and hard decision decoding may be performed on such coded signals generated herein. In accordance with decoding such signals, various bit decisions (within certain iterations) may be selectively ignored and/or reverted back to previous bit decisions.Type: ApplicationFiled: March 17, 2010Publication date: September 23, 2010Applicant: BROADCOM CORPORATIONInventors: Zhongfeng Wang, Chung-Jue Chen, Kang Xiao, Hongtao Jiang, James R. Fife, Sudeep Bhoja
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Publication number: 20090269056Abstract: A system (50) includes a communication path (170) and transmits data on a network (103, 106). A transmitter (101) transmits data on the network and a receiver (112) receives data from the network. A component (102, 114) in the communication path has a transfer characteristic (C1, C2, C3) adjusted in response to errors in data transmitted over and received from the network in order to reduce the error rate.Type: ApplicationFiled: June 16, 2009Publication date: October 29, 2009Applicant: BROADCOM CORPORATIONInventors: Nong Fan, Tuan Hoang, Hongtao Jiang, Keh-Chee Jen
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Patent number: 7548692Abstract: A system (50) includes a communication path (170) and transmits data on a network (103, 106). A transmitter (101) transmits data on the network and a receiver (112) receives data from the network. A component (102, 114) in the communication path has a transfer characteristic (C1, C2, C3) adjusted in response to errors in data transmitted over and received from the network in order to reduce the error rate.Type: GrantFiled: November 15, 2006Date of Patent: June 16, 2009Assignee: Broadcom CorporationInventors: Nong Fan, Tuan Hoang, Hongtao Jiang, Keh-Chee Jen
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Patent number: 7472318Abstract: A method and system for evaluating performance of a device by on-chip determination of BER may include establishing and generating PRBS test packets in a closed communication path internally within a physical layer device (PLD) and a remote PLD. A BER for the PLD may be determined from within the PLD based on a comparison of at least a portion of the generated test packets with at least a portion of the generated test packets transmitted over the closed communication path received by the PLD via the closed communication path from the remote PLD. A transmit path of the PLD may be internally coupled to a receive path of the PLD, and a receive path of the PLD may be internally coupled to a transmit path of the PLD. The PLD may be internally configured to operate in an internal optical loopback mode or an internal electrical loopback mode.Type: GrantFiled: June 28, 2006Date of Patent: December 30, 2008Assignee: Broadcom CorporationInventors: Nong Fan, Tuan Hoang, Hongtao Jiang
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Patent number: 7356076Abstract: A method and apparatus are disclosed to aid a transceiver chip, in a serial data communications system, in recovering from a system-side, out-bound data clocking problem. If a problem with a primary clock signal, used to clock data from a system-side of a transceiver chip through at least a part of an out-bound data path of the transceiver chip, is detected, then a more reliable secondary clock signal is substituted for the primary clock signal. Once it is determined that the primary clock signal has recovered, the primary clock signal is switched back to and certain discrete circuits of the out-bound data path of the transceiver chip are automatically reset in hardware without the need for system level intervention to avoid any problems due to clock glitches on the primary clock signal during the switching.Type: GrantFiled: December 5, 2002Date of Patent: April 8, 2008Assignee: Broadcom CorporationInventors: Kang Xiao, Mario Caresosa, Hongtao Jiang, Randall Stolaruk
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Publication number: 20070168770Abstract: A method and system for evaluating performance of a device by on-chip determination of BER may include establishing a closed communication path internally within a physical layer device (PLD). A bit error rate for the PLD may be determined from within the PLD based on a ratio of a number of bits in test packets generated within the PLD that are transmitted over the closed communication path, and a number of transmitted bits in the test packets that are received by the PLD via the closed communication path. A transmit path of the PLD may be internally coupled to a receive path of the PLD, and a receive path of the PLD may be internally coupled to a transmit path of the PLD. The PLD may be internally configured to operate in an internal optical loopback mode or an internal electrical loopback mode.Type: ApplicationFiled: June 28, 2006Publication date: July 19, 2007Inventors: Nong Fan, Tuan Hoang, Hongtao Jiang
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Patent number: D833046Type: GrantFiled: October 26, 2017Date of Patent: November 6, 2018Inventor: Hongtao Jiang