Techniques for analog multibit data representation for in-memory computing

    公开(公告)号:US12154638B2

    公开(公告)日:2024-11-26

    申请号:US17353493

    申请日:2021-06-21

    Abstract: Various embodiments provide apparatuses, systems, and methods for multibit analog representation, e.g., for in-memory computing. Embodiments may include a single-ended or differential ladder network to generate an analog value (e.g., a voltage or charge) based on a set of bits from a memory array. The ladder network may include a plurality of branches coupled to an output line, wherein individual branches include a capacitor with a first terminal coupled to the output line and a switch coupled to a second terminal of the capacitor. The switch may be controlled by a respective bit of the set of bits to selectively couple the second terminal of the capacitor to a first voltage node or a second voltage node based on a value of the respective bit. Other embodiments may be described and claimed.

    ROW REPAIR AND ACCURACY IMPROVEMENTS IN ANALOG COMPUTE-IN-MEMORY ARCHITECTURES

    公开(公告)号:US20230251943A1

    公开(公告)日:2023-08-10

    申请号:US18298906

    申请日:2023-04-11

    CPC classification number: G06F11/2041

    Abstract: Systems, apparatuses and methods may provide for technology that includes a plurality of analog to digital converters (ADCs), compute-in-memory (CiM) multiply-accumulate (MAC) hardware coupled to the plurality of ADCs, and a plurality of digital to analog converters (DACs) coupled to the CiM MAC hardware, wherein the plurality of DACs includes one or more redundant DACs. In one example, the technology uses a DAC disconnect scheme to statically bypass defective memory bitcells and compute capacitors to improve yield with minimal overhead, and dynamically boost the effective precision of the ADC in the presence of weight/activation sparsity in neural network (NN) compute.

    Spintronic devices, duplexers, transceivers and telecommunication devices

    公开(公告)号:US11205749B2

    公开(公告)日:2021-12-21

    申请号:US16474575

    申请日:2017-03-23

    Abstract: A spintronic device includes a first ferromagnetic layer. The first ferromagnetic layer includes a first direction of magnetic polarization. Furthermore, the spintronic device includes a second ferromagnetic layer. The second ferromagnetic layer includes a second direction of magnetic polarization opposite to the first direction. Furthermore, the spintronic device includes a long spin lifetime layer. Furthermore, the spintronic device includes a first tunnel barrier layer disposed between the first ferromagnetic layer and the long spin lifetime layer. Furthermore, the spintronic device includes a second tunnel barrier layer disposed between the second ferromagnetic layer and the long spin lifetime layer.

    Wake up radio device, circuit configuration, and method

    公开(公告)号:US09967820B2

    公开(公告)日:2018-05-08

    申请号:US15196070

    申请日:2016-06-29

    Abstract: According to the present disclosure, a communication device configured to power on a main receiver to receive data from a network includes: a low power receiver configured to receive a wake up packet, including a preamble, from the network and oversample the wake up packet; a circuit arrangement including: a correlator configured to correlate the oversampled portion of the preamble; a delay and adder configured to take an output of the correlator, delay the output of the correlator, and add the output of the correlator back onto itself to produce a delay output; a peak detector configured to detect a peak pattern in the delay output; a demodulator configured to calculate a decoding threshold value to produce a demodulated data; and a packet parser configured to check the demodulated data for a data set in order to selectively output a nonzero signal to power on the main receiver.

    ADAPTIVE ANALOG PARTIAL SUM ACCUMULATION TECHNOLOGY FOR ENERGY-EFFICIENT COMPUTE-IN-MEMORY

    公开(公告)号:US20240396568A1

    公开(公告)日:2024-11-28

    申请号:US18792714

    申请日:2024-08-02

    Abstract: Systems, apparatuses and methods may provide for technology including a digital to analog conversion (DAC) stage to generate analog input activation signals, a multiply-accumulate (MAC) computation stage coupled to the DAC stage, the MAC computation stage to generate output activation results based on the analog input activation signals and multi-bit weight data stored in the MAC computation stage, an analog integration stage coupled to the MAC computation stage, the analog integration stage to conduct partial sum accumulations on the output activation results, and analog to digital conversion (ADC) stage coupled to the analog integration stage, the ADC stage to generate digital computation results based on an output of the analog integration stage, and a controller to vary a number of cycles in the partial sum accumulations based on an overflow condition associated with one or more of the output activation results or the output of the analog integration stage.

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