-
公开(公告)号：US10096964B1
公开(公告)日：2018-10-09
申请号：US15605829
申请日：2017-05-25
Applicant: INPHI CORPORATION
Inventor： Karim Abdelhalim , Jorge Pernillo , Halil Cirit , Michael Le
IPC: H01S3/09 , H03M1/08 , H01S3/0933 , H01S3/091 , H01S5/042
Abstract: The present invention relates to telecommunication techniques and integrated circuit (IC) devices. In a specific embodiment, the present invention provides a laser deriver apparatus that includes a main DAC section and a mini DAC section. The main DAC section processes input signal received from a pre-driver array and generates an intermediate output signal. The mini DAC section provides a compensation signal to reduce distortion of the intermediate output signal. The intermediate output signal is coupled to output terminals through a cascode section and/or a T-coil section. There are other embodiments as well.
-
公开(公告)号：US10886692B2
公开(公告)日：2021-01-05
申请号：US16743611
申请日：2020-01-15
Applicant: INPHI CORPORATION
Inventor： Karim Abdelhalim , Jorge Pernillo , Halil Cirit , Michael Le
Abstract: The present invention relates to telecommunication techniques and integrated circuit (IC) devices. In a specific embodiment, the present invention provides a laser deriver apparatus that includes a main DAC section and a mini DAC section. The main DAC section processes input signal received from a pre-driver array and generates an intermediate output signal. The mini DAC section provides a compensation signal to reduce distortion of the intermediate output signal. The intermediate output signal is coupled to output terminals through a cascode section and/or a T-coil section. There are other embodiments as well.
-
公开(公告)号：US09548858B1
公开(公告)日：2017-01-17
申请号：US14997961
申请日：2016-01-18
Applicant: INPHI CORPORATION
Inventor： Halil Cirit , Karthik Gopalakrishnan , Pulkit Khandelwal , Ravindran Mohanavelu
CPC classification number: H04L7/0332 , H03L7/00 , H03L7/0807 , H04L5/0048 , H04L7/033 , H04L25/14 , H04L27/02 , H04Q2213/03
Abstract: The present invention is directed to communication systems. According to embodiments of the present invention, a communication system includes at least two communication lanes and a skew management module. The skew management module generates a control current based on output test patterns of the two communication lanes. The control current is integrated and compared to a reference voltage by a comparator, which generates an analog offset signal. A PLL of one of the communication lanes generates a corrected clock signal that is adjusted using the analog offset signal to remove or adjust the skew between the communication lanes. The corrected clock signal is used for output data. There are other embodiments as well.
Abstract translation: 本发明涉及通信系统。 根据本发明的实施例，通信系统包括至少两个通信通道和偏斜管理模块。 偏斜管理模块基于两个通信通道的输出测试模式生成控制电流。 控制电流被积分，并通过比较器与参考电压进行比较，产生模拟偏移信号。 通信通道之一的PLL产生校正的时钟信号，其使用模拟偏移信号进行调整，以消除或调整通信通道之间的偏斜。 校正的时钟信号用于输出数据。 还有其它实施例。
-
4.发明授权公开(公告)号：US10862521B1
公开(公告)日：2020-12-08
申请号：US16262387
申请日：2019-01-30
Applicant: INPHI CORPORATION
Inventor： Karthik Raviprakash , Halil Cirit
Abstract: The present invention is directed to communication systems and electrical circuits. More specifically, an embodiment of the present invention provides a termination circuit that includes a programmable gain attenuation section, a T-coil section, and a termination resistor. The characteristic resistance of the programmable gain attenuation section matches the resistance of the termination resistor. There are other embodiments as well.
-
Patent Agency Ranking
公开(公告)号：US10574023B2
公开(公告)日：2020-02-25
申请号：US16109605
申请日：2018-08-22
Applicant: INPHI CORPORATION
Inventor： Karim Abdelhalim , Jorge Pernillo , Halil Cirit , Michael Le
Abstract: The present invention relates to telecommunication techniques and integrated circuit (IC) devices. In a specific embodiment, the present invention provides a laser deriver apparatus that includes a main DAC section and a mini DAC section. The main DAC section processes input signal received from a pre-driver array and generates an intermediate output signal. The mini DAC section provides a compensation signal to reduce distortion of the intermediate output signal. The intermediate output signal is coupled to output terminals through a cascode section and/or a T-coil section. There are other embodiments as well.
-
公开(公告)号：US10148357B1
公开(公告)日：2018-12-04
申请号：US15604196
申请日：2017-05-24
Applicant: INPHI CORPORATION
Inventor： Halil Cirit , Karthik Gopalakrishnan , Karim Abdelhalim , Jorge Pernillo , Lawrence Tse
Abstract: Non-ideal downstream loading of a differential driver in a single ended circuit driving a communications laser—e.g., Electro absorption Modulated Laser (EML)—may be compensated by deploying a second matching network at the non-functional (terminated) driver output node. Certain embodiments may further compensate for distortion arising from circuit non-ideality, by introducing a laser replica downstream of the second matching network to mimic electrical properties of the laser. Embodiments may sufficiently compensate for downstream circuit non-ideality to allow replacing the bulky choke inductor of a bias tee, with a resistor. Substituting a resistor for a more complex inductor structure can simplify design and fabrication of the single-ended driver circuit, and also reduce footprint by eliminating area formerly occupied by the choke inductor. Embodiments may be particularly suited to bridge integration with other system components undergoing design migration toward double-ended modulator circuit architectures featuring a differential driver.
-
公开(公告)号：US09825756B2
公开(公告)日：2017-11-21
申请号：US15375059
申请日：2016-12-09
Applicant: INPHI CORPORATION
Inventor： Halil Cirit , Karthik Gopalakrishnan , Pulkit Khandelwal , Ravindran Mohanavelu
CPC classification number: H04L7/0332 , H03L7/00 , H03L7/0807 , H04L5/0048 , H04L7/033 , H04L25/14 , H04L27/02 , H04Q2213/03
Abstract: The present invention is directed to communication systems. According to embodiments of the present invention, a communication system includes at least two communication lanes and a skew management module. The skew management module generates a control current based on output test patterns of the two communication lanes. The control current is integrated and compared to a reference voltage by a comparator, which generates an analog offset signal. A PLL of one of the communication lanes generates a corrected clock signal that is adjusted using the analog offset signal to remove or adjust the skew between the communication lanes. The corrected clock signal is used for output data. There are other embodiments as well.
-
公开(公告)号：US09755870B1
公开(公告)日：2017-09-05
申请号：US15404091
申请日：2017-01-11
Applicant: INPHI CORPORATION
Inventor： Halil Cirit , Karthik S. Gopalakrishnan
IPC: H03K7/02 , H03K9/02 , H04L27/02 , H04B17/336
CPC classification number: H04L27/02 , H04B10/541 , H04B17/336 , H04L25/08 , H04L25/4917
Abstract: The present invention is directed to communication systems. More specifically, embodiments of the present invention provide a technique and system thereof for performing eye modulation. Eye modulation is performed at the transmission side of a PAM communication system to compensate for distortion and non-linearity and generate an output waveform. Spacing among eye levels is adjusted by performing symmetric modulation using α parameter and asymmetric modulation using β parameter. A correction module measures the output waveform and sends feedback signals to a control module to adjust the α parameter and the β parameter. There are other embodiments as well.
-
公开(公告)号：US09559880B1
公开(公告)日：2017-01-31
申请号：US15061874
申请日：2016-03-04
Applicant: INPHI CORPORATION
Inventor： Halil Cirit , Karthik S. Gopalakrishnan
CPC classification number: H04L27/02 , H04B10/541 , H04B17/336 , H04L25/08 , H04L25/4917
Abstract: The present invention is directed to communication systems. More specifically, embodiments of the present invention provide a technique and system thereof for performing eye modulation. Eye modulation is performed at the transmission side of a PAM communication system to compensate for distortion and non-linearity and generate an output waveform. Spacing among eye levels is adjusted by performing symmetric modulation using α parameter and asymmetric modulation using β parameter. A correction module measures the output waveform and sends feedback signals to a control module to adjust the α parameter and the β parameter. There are other embodiments as well.
Abstract translation: 本发明涉及通信系统。 更具体地，本发明的实施例提供了一种用于执行眼睛调制的技术和系统。 在PAM通信系统的发送侧执行眼睛调制，以补偿失真和非线性并产生输出波形。 通过使用α参数和使用β参数的不对称调制执行对称调制来调整眼睛水平之间的间距。 校正模块测量输出波形，并向控制模块发送反馈信号，以调整α参数和β参数。 还有其它实施例。
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.013 seconds)
