Invention Grant
- Patent Title: Real time clock with neural network correction of temperature-based changes in frequency
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Application No.: US16538569Application Date: 2019-08-12
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Publication No.: US10666268B2Publication Date: 2020-05-26
- Inventor: Gopal Raghavan
- Applicant: Eta Compute, Inc.
- Applicant Address: US CA Westlake Village
- Assignee: Eta Compute, Inc.
- Current Assignee: Eta Compute, Inc.
- Current Assignee Address: US CA Westlake Village
- Agency: SoCal IP Law Group LLP
- Agent Angelo Gaz; Steven Sereboff
- Main IPC: H03B5/32
- IPC: H03B5/32 ; G06F1/14 ; G06N3/08 ; H03L1/02 ; H03H9/19 ; G06F1/08

Abstract:
Temperature-independent clock generation systems and methods are described that include a trained neural network coupled to a frequency correction circuit that corrects a crystal resonator output of a clock signal having a frequency that changes with changes in temperature. The neural network is trained with test temperatures and corresponding temperature based changes in frequency for test resonators of the same type as the resonator of the real time clock. The neutral network is trained to output frequency corrections based on a set of measured reference temperature-based changes in frequency for the crystal resonator and a current temperature of the resonator. The frequency correction circuit receives the frequency corrections from the neural network and corrects changes in the frequency caused by the changes in temperature of the resonator to provide a clock signal having an output frequency that is independent of the current temperature of the resonator.
Public/Granted literature
- US20200052704A1 REAL TIME CLOCK WITH NEURAL NETWORK CORRECTION OF TEMPERATURE-BASED CHANGES IN FREQUENCY Public/Granted day:2020-02-13
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