公开(公告)号：US09553634B2

公开(公告)日：2017-01-24

申请号：US14563797

申请日：2014-12-08

Applicant: Lattice Semiconductor Corporation

Inventor： Joohong Choi ,  Kihong Kim ,  Gyudong Kim ,  Chandlee B. Harrell

IPC: H04B3/20

CPC classification number: H04B3/20

Abstract: A device converts between electrical duplex and optical signals. In one embodiment, such a device includes an echo cancellation circuit that reduces the echo from an incoming optical signal.

Abstract translation: 设备在电气双工和光信号之间进行转换。 在一个实施例中，这种装置包括回波消除电路，其减少来自输入光信号的回波。

公开(公告)号：US20170343744A1

公开(公告)日：2017-11-30

申请号：US15682478

申请日：2017-08-21

Applicant: Lattice Semiconductor Corporation

Inventor： Kihong Kim

IPC: G02B6/38 ,  G02B6/28 ,  G02B6/32 ,  G02B6/42 ,  G02B6/02

CPC classification number: G02B6/3861 ,  G02B6/02209 ,  G02B6/2848 ,  G02B6/32 ,  G02B6/322 ,  G02B6/3817 ,  G02B6/3825 ,  G02B6/3853 ,  G02B6/3874 ,  G02B6/4202 ,  G02B6/4206 ,  G02B6/4226 ,  G02B6/4239 ,  G02B6/4293 ,  G02B27/0927

Abstract: Various techniques are provided for manufacturing an optical connector. In one example, a technique may include applying an optical adhesive to a first end of the optical fiber, translating the optical fiber towards a lens to at least partially adhere the end of the optical fiber to the lens by the optical adhesive, and suspending the lens from the optical fiber to align a center of gravity of the lens with an optical path of the optical fiber to maintain optical beam power loss below a power loss threshold. Additional methods, systems, and apparatus are also provided.

公开(公告)号：US20170302387A1

公开(公告)日：2017-10-19

申请号：US15488291

申请日：2017-04-14

Applicant: Lattice Semiconductor Corporation

Inventor： Kihong Kim

IPC: H04B10/80 ,  G02B27/09 ,  G02B6/42 ,  G02B6/38 ,  H04B10/25 ,  G02B6/32

CPC classification number: H04B10/803 ,  G02B6/3809 ,  G02B6/4206 ,  G02B6/4292 ,  G02B27/0927 ,  H04B10/2504

Abstract: A ferrule-less optical interconnect includes electrical communications assembly having a receptacle disposed in a housing, the receptacle adapted to mate with an electrical connector to produce a free space gap, and active optical communications components disposed in the housing and adapted to process a free space optical beam traveling along a first optical beam path through the free space gap. The free space optical beam has a substantially parallel shape and Gaussian power density distribution. Active optical components may include a light source and a collimator adapted to produce the free space optical beam. Active optical components may include a condenser adapted to receive the free space optical beam and produce a focused optical beam signal for reception by a sensor. A hole is disposed in the housing along the first optical beam path providing free space passageway between the active optical communications components and the free space gap.

公开(公告)号：US09497860B2

公开(公告)日：2016-11-15

申请号：US13671527

申请日：2012-11-07

Applicant: Lattice Semiconductor Corporation

Inventor： Kihong Kim

IPC: G02B6/42 ,  H05K1/11 ,  H05K3/36 ,  H05K3/40 ,  G02B6/43 ,  H05K1/02 ,  H05K1/14

CPC classification number: H05K1/117 ,  G02B6/42 ,  G02B6/4214 ,  G02B6/4246 ,  G02B6/4292 ,  G02B6/43 ,  H05K1/0274 ,  H05K1/141 ,  H05K3/366 ,  H05K3/403 ,  H05K2201/09072 ,  H05K2201/09145 ,  H05K2201/10121 ,  Y10T29/4913

Abstract: Exemplary embodiments of methods and apparatuses to provide an electro-optical alignment are described. An electrical connector is formed on a printed circuit board substrate that extends onto a side surface of the substrate to form an electrical turn. An optoelectronic die is placed onto the printed circuit board substrate. The optoelectronic die on the printed circuit board substrate is erected over a mounting board to provide optical coupling substantially parallel to the mounting board.

Abstract translation: 描述了提供电光对准的方法和装置的示例性实施例。 电连接器形成在印刷电路板基板上，该印刷电路板基板延伸到基板的侧表面以形成电转弯。 将光电管芯放置在印刷电路板基板上。 印刷电路板基板上的光电管芯竖立在安装板上，以提供基本上平行于安装板的光学耦合。

公开(公告)号：US20190115935A1

公开(公告)日：2019-04-18

申请号：US16090165

申请日：2017-04-03

Applicant: Lattice Semiconductor Corporation

Inventor： Sergey Yarygin ,  Gyudong KIM ,  Laurence A. Thompson ,  Kihong Kim ,  Chandlee B. Harrell

IPC: H03M13/11 ,  H04L1/00 ,  H04N21/2383 ,  H04N21/4363

Abstract: A source device includes a forward error correction encoder circuit to generate error correction protected blocks from video data packets. Each error correction protected block includes data words and error correction words. An encoder circuit encode X-bit words of the error correction protected blocks into Y-bit encoded words for transmission to a sink device over one or more multimedia lanes of a multimedia communication link, where X is smaller than Y.

公开(公告)号：US20190137710A1

公开(公告)日：2019-05-09

申请号：US16221428

申请日：2018-12-14

Applicant: Lattice Semiconductor Corporation

Inventor： Kihong Kim ,  Gyudong Kim ,  Chandlee Harrell

IPC: G02B6/42 ,  G02B6/38 ,  G02B6/32 ,  H01R24/60 ,  H01R13/6461 ,  H01R13/631

Abstract: Various techniques are provided for implementing a hybrid electrical-optical interface. In one example, the hybrid electrical-optical interface includes a connector body configured to mate with an universal serial bus (USB) component in accordance with a predetermined mechanical misalignment tolerance, a plurality of electrical conduits disposed within the connector body and configured to pass electrical signals, and an optical conduit disposed within the connector body between at least two of the electrical conduits, wherein the optical conduit is configured to pass optical signals through a free space gap formed while the connector body is mated with the USB component, and configured to maintain communication of the optical signals through the free space gap while the connector body and the USB component are within the misalignment tolerance. Additional implementations and related methods are also provided.