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Non-linear polar material based low power multiplier with NOR and NAND gate based reset mechanism

專利號
US11888479B1
公開日期
2024-01-30
申請人
Kepler Computing Inc.(US CA San Francisco)
發(fā)明人
Amrita Mathuriya; Rafael Rios; Ikenna Odinaka; Rajeev Kumar Dokania; Sasikanth Manipatruni
IPC分類
H03K19/23; H03K19/0185; G06F7/487; H03K19/017; G06F7/501; H03K19/17736
技術領域
reset,gate,majority,pull,capacitors,adder,minority,multiplier,gates,node
地域: CA CA San Francisco

摘要

A multiplier cell is derived from a 1-bit full adder and an AND gate. The 1-bit full adder is derived from majority and/or minority gates. The majority and/or minority gates include non-linear polar material (e.g., ferroelectric or paraelectric material). A reset mechanism is provided to reset the nodes across the non-linear polar material. The multiplier cell is a hybrid of majority and/or minority gates and complementary metal oxide semiconductor (CMOS) based inverters and/or buffers. The adder uses a non-linear polar capacitor to retain charge with fewer transistors than traditional CMOS sequential circuits. The non-linear polar capacitor includes ferroelectric material, paraelectric material, or non-linear dielectric. Input signals are received by respective terminals of capacitors having non-linear polar material. The other terminals of these capacitors are coupled to a node where the majority function takes place for the inputs.

說明書

Example 17c: The system of example 16c, wherein the non-linear polar material includes ferroelectric material or paraelectric material.

Example 18c: The system of example 15c, wherein the reset mechanism is to sequentially pull-up and pull-down the second terminals during the reset phase, and to allow the second terminals to float during the evaluation phase.

Example 19c: The system of example 18c comprises: a first inverter which is coupled to a 3-input majority gate of 1-bit full adder; and a first NOR gate coupled to an output of the first inverter, wherein the first NOR gate is controllable by a first reset, wherein an output of the first NOR gate is a carry output, wherein the first reset is to condition the output of the first NOR gate during the reset phase, wherein an output of the first inverter is coupled to a 5-input majority gate of the 1-bit full adder.

Example 20c: The system of example 19c comprises: a second inverter coupled to the 5-input majority gate; and a second NOR gate coupled to an output of the second inverter, wherein the second NOR gate is controllable by the first reset, wherein the first reset is to condition the output of the second NOR gate during the reset phase, wherein the output of the second NOR gate is a sum output.

權利要求

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