公开(公告)号：US20200218511A1

公开(公告)日：2020-07-09

申请号：US16732603

申请日：2020-01-02

Applicant: Cisco Technology, Inc.

Inventor： Mohammad Ali Sedaghat ,  Christopher R. Fludger ,  Andreas Bisplinghoff ,  Gregory Bryant

IPC: G06F7/58 ,  G01R31/3177 ,  H03K3/84

Abstract: A random noise generator for generating a plurality of random noise samples per clock cycle, the noise samples having a distribution. The random noise generator comprises at least a first comparator unit and a second comparator unit, the first comparator unit configured to generate a first plurality of samples representing a high-probability part of the distribution and the second comparator unit configured to generate a second plurality of samples representing a low-probability part of the distribution; and a random selection unit connected to at least the first comparator unit and the second comparator unit. The random selection unit is configured to receive the first plurality of samples generated by the first comparator unit and the second plurality of samples generated by the second comparator unit, to output a random selection of samples from the first plurality of samples and the second plurality of samples.

公开(公告)号：US11550547B2

公开(公告)日：2023-01-10

申请号：US16732603

申请日：2020-01-02

Applicant: Cisco Technology, Inc.

Inventor： Mohammad Ali Sedaghat ,  Christopher R. Fludger ,  Andreas Bisplinghoff ,  Gregory Bryant

IPC: G06F7/58 ,  G01R31/3177 ,  H03K3/84

Abstract: A random noise generator for generating a plurality of random noise samples per clock cycle, the noise samples having a distribution. The random noise generator comprises at least a first comparator unit and a second comparator unit, the first comparator unit configured to generate a first plurality of samples representing a high-probability part of the distribution and the second comparator unit configured to generate a second plurality of samples representing a low-probability part of the distribution; and a random selection unit connected to at least the first comparator unit and the second comparator unit. The random selection unit is configured to receive the first plurality of samples generated by the first comparator unit and the second plurality of samples generated by the second comparator unit, to output a random selection of samples from the first plurality of samples and the second plurality of samples.