Invention Grant
- Patent Title: Continuous time linear receiver that minimizes intersymbol interference due to pre-cursor distortion
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Application No.: US15376525Application Date: 2016-12-12
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Publication No.: US10367661B1Publication Date: 2019-07-30
- Inventor: Scott David Huss
- Applicant: Cadence Design Systems, Inc.
- Applicant Address: US CA San Jose
- Assignee: CADENCE DESIGN SYSTEMS, INC.
- Current Assignee: CADENCE DESIGN SYSTEMS, INC.
- Current Assignee Address: US CA San Jose
- Agency: Tarolli, Sundheim, Covell & Tummino LLP
- Main IPC: H04L25/03
- IPC: H04L25/03 ; H04L1/00 ; H04L12/26

Abstract:
A circuit and method for reducing intersymbol interference due to pre-cursor distortion. A first set of circuit elements located along a first circuit path of a receiver device process an analog input signal of the receiver to form an equalized representation of the input signal. A second set of circuit elements are located along a second circuit path that has lower latency than the first circuit path. The second set of circuit elements form a scaled signal as one of the following: a scaled representation of the input signal, an inverted scaled representation of the input signal, a scaled derivative of the input signal, and an inverted scaled derivative of the input signal. The scaled signal is combined with the equalized representation to cancel out a pre-cursor portion of the equalized representation.
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