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US Patent 11979126 Programmable gain amplifier with active charge-injection/charge-leakage suppression

Patent 11979126 was granted and assigned to Gigajot Technology Inc. on May, 2024 by the United States Patent and Trademark Office.

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Is a
Patent
Patent
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Patent attributes

Patent Applicant
Gigajot Technology Inc.
Gigajot Technology Inc.
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Current Assignee
Gigajot Technology Inc.
Gigajot Technology Inc.
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
119791260
Patent Inventor Names
Dexue Zhang0
Date of Patent
May 7, 2024
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Patent Application Number
173068360
Date Filed
May 3, 2021
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Patent Citations
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US Patent 9740351 Multi-step incremental switching scheme
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US Patent 9942496 Correlated double sampling (CDS) circuit for decreasing settling time and image sensor including the same
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US Patent 11031949 Analog-to-digital converter, sensor arrangement and method for analog-to-digital conversion
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US Patent 7279940 Switched-capacitor circuit with time-shifted switching scheme
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US Patent 7764215 Multi-stage comparator with offset canceling capacitor across secondary differential inputs for high-speed low-gain compare and high-gain auto-zeroing
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US Patent 7884662 Multi-channel integrator
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US Patent 8134401 Systems and methods of low offset switched capacitor comparators
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US Patent 8218049 Solid-state image sensing device, method for reading signal of solid-state image sensing device, and image pickup apparatus
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Patent Primary Examiner
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Henry Choe
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CPC Code
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H03F 3/45
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Patent abstract

Charge leakage/injection suppression circuitry within a capacitive programmable gain amplifier provides a low-impedance expulsion path for residual carriers within a feedback-path amplifier-mode switch and equalizes a voltage across a critical-leakage-path component of that amplifier-mode switch, reducing charge injection and leakage into an otherwise isolated amplifier input node to yield a low-noise amplifier output.

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