公开(公告)号：US20200252243A1

公开(公告)日：2020-08-06

申请号：US16791070

申请日：2020-02-14

Applicant: Rambus Inc.

Inventor： Ramin Farjad-Rad

IPC: H04L25/03

Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.

公开(公告)号：US20190268188A1

公开(公告)日：2019-08-29

申请号：US16394752

申请日：2019-04-25

Applicant: Rambus Inc.

Inventor： Ramin Farjad-Rad

IPC: H04L25/03

Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.

公开(公告)号：US10205614B2

公开(公告)日：2019-02-12

申请号：US16010445

申请日：2018-06-16

Applicant: Rambus Inc.

Inventor： Jared L. Zerbe ,  Fred F. Chen ,  Andrew Ho ,  Ramin Farjad-Rad ,  John W. Poulton ,  Kevin S. Donnelly ,  Brian S. Leibowitz ,  Vladimir Stojanovic

IPC: H04L27/01 ,  H04L25/03 ,  H04L25/497 ,  H04W52/20 ,  H04L1/00 ,  H04L7/033 ,  H04L25/02 ,  H04L7/00 ,  H04W52/22

Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.

公开(公告)号：US20180367350A1

公开(公告)日：2018-12-20

申请号：US16010445

申请日：2018-06-16

Applicant: Rambus Inc.

Inventor： Jared L. Zerbe ,  Fred F. Chen ,  Andrew Ho ,  Ramin Farjad-Rad ,  John W. Poulton ,  Kevin S. Donnelly ,  Brian S. Leibowitz

IPC: H04L27/01 ,  H04L25/03 ,  H04L1/00 ,  H04L7/033 ,  H04L25/497 ,  H04W52/20 ,  H04L7/00 ,  H04L25/02 ,  H04W52/22

CPC classification number: H04L27/01 ,  H04L1/0026 ,  H04L7/0025 ,  H04L7/0087 ,  H04L7/0337 ,  H04L25/0272 ,  H04L25/028 ,  H04L25/03057 ,  H04L25/03343 ,  H04L25/03885 ,  H04L25/497 ,  H04L2025/03503 ,  H04W52/20 ,  H04W52/225 ,  Y02D70/00

Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.

公开(公告)号：US10003484B2

公开(公告)日：2018-06-19

申请号：US15652059

申请日：2017-07-17

Applicant: Rambus Inc.

Inventor： Jared L. Zerbe ,  Fred F. Chen ,  Andrew Ho ,  Ramin Farjad-Rad ,  John W. Poulton ,  Kevin S. Donnelly ,  Brian S. Leibowitz

IPC: H04L27/01 ,  H04L7/033 ,  H04L1/00 ,  H04L25/03 ,  H04W52/20 ,  H04L25/497 ,  H04L25/02 ,  H04W52/22 ,  H04L7/00

CPC classification number: H04L27/01 ,  H04L1/0026 ,  H04L7/0025 ,  H04L7/0087 ,  H04L7/0337 ,  H04L25/0272 ,  H04L25/028 ,  H04L25/03057 ,  H04L25/03343 ,  H04L25/03885 ,  H04L25/497 ,  H04L2025/03503 ,  H04W52/20 ,  H04W52/225 ,  Y02D70/00

Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.