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51.
公开(公告)号:US20190108161A1
公开(公告)日:2019-04-11
申请号:US16196614
申请日:2018-11-20
Applicant: INPHI CORPORATION
Inventor: Radhakrishnan L. NAGARAJAN
IPC: G06F15/78 , G06F13/42 , G06F13/40 , H04L27/00 , G02B6/12 , G06F13/364 , H04L1/00 , H04L25/03 , H04L27/02 , H04L5/14 , H04L27/18 , H04L27/34
CPC classification number: G06F15/7817 , G02B6/12004 , G02B2006/12061 , G02B2006/12097 , G02B2006/12121 , G02B2006/12123 , G02B2006/12142 , G06F13/364 , G06F13/4072 , G06F13/42 , G06F13/4282 , H04L1/0003 , H04L5/14 , H04L25/03006 , H04L25/03343 , H04L27/0008 , H04L27/02 , H04L27/18 , H04L27/34
Abstract: The present invention provides an integrated system-on-chip device. The device is configured on a single silicon substrate member. The device has a data input/output interface provided on the substrate member. The device has an input/output block provided on the substrate member and coupled to the data input/output interface. The device has a signal processing block provided on the substrate member and coupled to the input/output block. The device has a driver module provided on the substrate member and coupled to the signal processing block. The device further includes a driver interface and coupled to the driver module and configured to be coupled to a silicon photonics device. In an example, a control block is configured to receive and send instruction(s) in a digital format to the communication block and is configured to receive and send signals in an analog format to communicate with the silicon photonics device.
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公开(公告)号:US10234705B2
公开(公告)日:2019-03-19
申请号:US16032947
申请日:2018-07-11
Applicant: INPHI CORPORATION
Inventor: Abdellatif El-Moznine , Bruno Tourette , Hessam Mohajeri
Abstract: A driver configuration for driving a Mach-Zehnder modulator (MZM) includes a first driver supplied by a first voltage and a second voltage and configured to provide a first two complimentary outputs respectively to a first N-electrode of a first branch of the MZM and a second N-electrode of a second branch of the MZM. Additionally, the driver configuration includes a second driver supplied by a third voltage and a fourth voltage and configured to provide a second two complimentary outputs respectively to a first P-electrode of the first branch and a second P-electrode of the second branch. The driver configuration sets a difference between the third voltage and the fourth voltage equal to a difference between the first voltage and the second voltage to provide a same peak-to-peak differential swing for modulating light wave through each transmission line and output a modulated light with twice of the peak-to-peak differential swing.
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公开(公告)号:US20190067903A1
公开(公告)日:2019-02-28
申请号:US16160817
申请日:2018-10-15
Applicant: INPHI CORPORATION , LUXNET CORPORATION
Inventor: Radhakrishnan L. NAGARAJAN , Peng-Chih LI , Pi-Cheng LAW
IPC: H01S5/06
CPC classification number: H01S5/0612 , G02B6/4204 , G02B6/4212 , G02B6/4215 , G02B6/4271 , G02B6/4287 , G02B6/4296 , H01S5/0064 , H01S5/0224 , H01S5/02248 , H01S5/02284 , H01S5/02288 , H01S5/02415 , H01S5/02438 , H01S5/068 , H01S5/125 , H04B10/501
Abstract: A packaged transmitter device includes a base member comprising a planar part mounted with a thermoelectric cooler, a transmitter, and a coupling lens assembly, and an assembling part connected to one side of the planar part. The device further includes a circuit board bended to have a first end region and a second end region being raised to a higher level. The first end region disposed on a top surface of the planar part includes multiple electrical connection patches respectively connected to the thermoelectric and the transmitter. The second end region includes an electrical port for external connection. Additionally, the device includes a cover member disposed over the planar part. Furthermore, the device includes a cylindrical member installed to the assembling part for enclosing an isolator aligned to the coupling lens assembly along its axis and connected to a fiber to couple optical signal from the transmitter to the fiber.
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公开(公告)号:US10218444B2
公开(公告)日:2019-02-26
申请号:US15809902
申请日:2017-11-10
Applicant: INPHI CORPORATION
Inventor: Karthik Gopalakrishnan , Jamal Riani , Arun Tiruvur
IPC: H04B10/40 , H04B10/54 , H04L7/00 , H04L7/033 , H03K5/00 , H03K19/0185 , H03L7/093 , H03L7/099 , H03L7/197 , H03L7/23 , H04L25/00
Abstract: The present invention is directed to data communication. More specifically, embodiments of the present invention provide a transceiver that processes an incoming data stream and generates a recovered clock signal based on the incoming data stream. The transceiver includes a voltage gain amplifier that also performs equalization and provides a driving signal to track and hold circuits that hold the incoming data stream, which is stored by shift and holder buffer circuits. Analog to digital conversion is then performed on the buffer data by a plurality of ADC circuits. Various DSP functions are then performed over the converted data. The converted data are then encoded and transmitted in a PAM format. There are other embodiments as well.
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公开(公告)号:US20190052513A1
公开(公告)日:2019-02-14
申请号:US15987808
申请日:2018-05-23
Applicant: INPHI CORPORATION
Inventor: Arash FARHOODFAR , Jitendra SWARNKAR , Michael DUCKERING , Andre SCZAPANEK , Scott FELLER , Shaun LYTOLLIS
Abstract: The present invention is directed to data communication. In certain embodiments, the present invention provides switching mechanism for choosing between redundant communication links. Data received from a first set of communication links are processed to have alignment markers removed, and first figure of merit value is determined based on the data without alignment markers. Similarly, a second figure of merit value is determined for the data received from the second set of communication links. A switch selects between the first set of communication links and the second set of communication links based on their respective figure of merit values. Alignment markers are inserted into the data transmitted through the selected set of data links. There are other embodiments as well.
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公开(公告)号:US20190052253A1
公开(公告)日:2019-02-14
申请号:US16153248
申请日:2018-10-05
Applicant: INPHI CORPORATION
Inventor: Irene QUEK
CPC classification number: H03K5/135 , H03K2005/00052 , H03M1/747 , H04L27/38
Abstract: The present invention relates generally to integrated circuits. More particularly, the present invention provides a circuit and method for a CMOS interpolator for an output clock signal with a desirable phase for a high speed serializer/deserializer device. In a specific embodiment, the present invention provides a phase interpolator device that mixes phase-shifted clock signals according to a predetermined weight values at predetermined time intervals. There are other embodiments as well.
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公开(公告)号:US20190041580A1
公开(公告)日:2019-02-07
申请号:US16157409
申请日:2018-10-11
Applicant: INPHI CORPORATION
Inventor: Xiaoguang TU , Radhakrishnan L. NAGARAJAN , Masaki KATO
CPC classification number: G02B6/29394 , G02B6/021 , G02B6/1225 , G02B6/29395 , G02B6/30 , G02B2006/12061 , G02B2006/1215 , G02B2006/12159 , H04B10/25133
Abstract: An optical dispersion compensator integrated with a silicon photonics system including a first phase-shifter coupled to a second phase-shifter in parallel on the silicon substrate characterized in an athermal condition. The dispersion compensator further includes a third phase-shifter on the silicon substrate to the first phase-shifter and the second phase-shifter through two 2×2 splitters to form an optical loop. A second entry port of a first 2×2 splitter is for coupling with an input fiber and a second exit port of a second 2×2 splitter is for coupling with an output fiber. The optical loop is characterized by a total phase delay tunable via each of the first phase-shifter, the second phase-shifter, and the third phase-shifter such that a normal dispersion (>0) at a certain wavelength in the input fiber is substantially compensated and independent of temperature.
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公开(公告)号:US20180351585A1
公开(公告)日:2018-12-06
申请号:US16041642
申请日:2018-07-20
Applicant: INPHI CORPORATION
Inventor: Damian Alfonso MORERO , Mario Alejandro CASTRILLON , Matias German SCHNIDRIG , Mario Rafael HUEDA
CPC classification number: H03M13/616 , H03M13/112 , H03M13/1137 , H03M13/116 , H03M13/6577
Abstract: A decoder performs forward error correction based on quasi-cyclic regular column-partition low density parity check codes. A method for designing the parity check matrix reduces the number of short-cycles of the matrix to increase performance. An adaptive quantization post-processing technique further improves performance by eliminating error floors associated with the decoding. A parallel decoder architecture performs iterative decoding using a parallel pipelined architecture.
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公开(公告)号:US10141717B2
公开(公告)日:2018-11-27
申请号:US15855927
申请日:2017-12-27
Applicant: INPHI CORPORATION , Luxnet Corporation
Inventor: Radhakrishnan L. Nagarajan , Peng-Chih Li , Pi-Cheng Law
Abstract: A packaged transmitter device includes a base member comprising a planar part mounted with a thermoelectric cooler, a transmitter, and a coupling lens assembly, and an assembling part connected to one side of the planar part. The device further includes a circuit board bended to have a first end region and a second end region being raised to a higher level. The first end region disposed on a top surface of the planar part includes multiple electrical connection patches respectively connected to the thermoelectric and the transmitter. The second end region includes an electrical port for external connection. Additionally, the device includes a cover member disposed over the planar part. Furthermore, the device includes a cylindrical member installed to the assembling part for enclosing an isolator aligned to the coupling lens assembly along its axis and connected to a fiber to couple optical signal from the transmitter to the fiber.
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公开(公告)号:US10133002B2
公开(公告)日:2018-11-20
申请号:US15833937
申请日:2017-12-06
Applicant: INPHI CORPORATION
Inventor: Jie Lin
Abstract: A compact polarization beam rotator includes a converter waveguide comprising a first segment and a second segment both in corresponding taper rib shapes sharing a first middle plane and configured to receive an input optical signal with TM polarization mode from an input plane and convert the TM polarization mode to TE1 polarization mode comprising a first arm mode and a second arm mode at a second middle plane. The polarization beam rotator additionally includes a splitter waveguide coupled to the second middle plane for separating the first arm mode and the second arm mode at a third plane respectively coupled to a first branch waveguide to deliver the first arm mode in phase and a second branch waveguide to reverse the second arm mode phase by 180°, and a 2×1 MMI coupler waveguide to combine both arm modes in phase to an output optical signal with TE polarization mode.
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