Graphcore Limited

Nvidia Corporation

Badreddine Noune

Simon Christian Knowles

Alan Graham Alexander

Godfrey Da Costa

Stephen Felix

Carlo Luschi

Mrudula Gore

Edward Andrews

Dominic Alexander Masters

A processing device comprising: a control register configured to store a scaling factor; at least one execution unit configured to execute instructions to perform arithmetic operations on input floating-point numbers provided according to a first floating-point format, wherein each of the input floating-point numbers provided according to the first floating-point format comprises a predetermined number of bits, wherein the at least one execution unit is configured to, in response to execution of an instance of a first of the instructions: perform processing of a first set of the input floating-point numbers to generate a result value, the result value provided in a further format and comprising more the predetermined number of bits, enabling representation of a greater range of values than is representable in the first floating-point format; and apply the scaling factor specified in the control register to increase or decrease an exponent of the result value.

Processing device for intermediate value scaling

A processing device comprising a plurality of operand registers, wherein a first subset of the operand registers are configured to store state information for a plurality of bins, comprising a range of values and a bin count associated with each respective bin, wherein a second subset of the operand registers is configured to store a vector of floating-point values; and an execution unit configured to execute a first instruction taking the state information for the plurality of bins and the vector of floating-point values as operands, and in response to execution of the first instruction, for each of the floating-point values: identify based on an exponent of the respective floating-point value, each one of the plurality of bins for which the respective floating-point value falls within the associated range of values; and increment the bin count associated with the identified bins.

Machine code instruction

A wireless communications receiver includes a receiving unit configured to receive a radio transmission having Doppler distortion and channel noise. Also included is an estimating unit coupled to the receiving unit and configured to determine a noise-abated maximum Doppler frequency estimate for the Doppler distortion. Additionally, the estimating unit is further configured to determine a signal-to-noise ratio (SNR) estimate based on the noise-abated maximum Doppler frequency estimate. In another aspect, a method of operating a wireless communications receiver is provided.

Doppler spread and SNR estimation for a wireless communications receiver

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Bristol, United Kingdom

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