An embodiment method for determining a carry digit indicator bit of a first binary datum includes a step for processing of the first binary datum masked by a masking operation, and not including any processing step of the first binary datum.

In order to provide smaller, faster and less error-prone circuits for sorting possibly metastable inputs, a novel sorting circuit is provided. According to the invention, the circuit is metastability-containing.

A method for assisting the navigation of a fleet of vehicles including main vehicle and a secondary vehicle movable relative to the main vehicle includes receiving data acquired by one or more sensors, the received data including relative kinematic data between the main vehicle and the secondary vehicle, and estimating a navigation state of the fleet of vehicles by an invariant Kalman filter using the received data as observations. The navigation state includes first variables representative of a first rigid transformation linking a frame attached to the main vehicle to a reference frame, and second variables representative of a second rigid transformation linking the frame attached to the main vehicle to a frame attached to the secondary vehicle. The invariant Kalman filter uses as binary operation an operation including a term-by-term composition of the first rigid transformation and of the second rigid transformation.

A fused multiply-add hardware operator comprising a multiplier receiving two multiplicands as floating-point numbers encoded in a first precision format; an alignment circuit associated with the multiplier configured to convert the result of the multiplication into a first fixed-point number ; and an adder configured to add the first fixed-point number and an addition operand. The addition operand is a floating-point number encoded in a second precision format , and the operator comprises an alignment circuit associated with the addition operand, configured to convert the addition operand into a second fixed-point number of reduced dynamic range relative to the dynamic range of the addition operand, having a number of bits equal to the number of bits of the first fixed-point number, extended on both sides by at least the size of the mantissa of the addition operand; the adder configured to add the first and second fixed-point numbers without loss.

The disclosure is directed to a system, device and method for data storage on implantable magnetizable fabric. The system includes implantable magnetizable fabric coupled to a graft segment of a prosthesis for being delivered into a body of a subject. The system includes information written on the implantable magnetizable fabric. The system further includes a magnetic detection device capable of, after the prosthesis is delivered into the body of the subject, detecting the implantable magnetizable fabric and accessing at least a portion of the information.

A method for assisting with the navigation of a fleet of vehicles including a main vehicle and a secondary vehicle that is mobile in relation to the main vehicle, the method including receiving relative movement data, acquired by one or more sensors, between the main vehicle and the secondary vehicle, estimating a navigation status of the fleet of vehicles by an invariant Kalman filter using the received data as observations, the navigation status including first variables representing a first rigid transformation linking a location mark associated with the main vehicle to a reference point, and second variables representing a second rigid transformation linking a location mark associated with the main vehicle to a location mark associated with the secondary vehicle, the invariant Kalman filter using, as an internal composition law, a law including a term-by term composition of the first rigid transformation and the second rigid transformation.

A multi-bit accumulator including a plurality of 1-bit Wallace trees configured to perform an add operation on single-bit input data, a plurality of tristate buffers configured to output a result of the add operation of the 1-bit Wallace trees, according to an enable signal, and a shift-adder configured to perform an accumulation operation on the result of the add operation of the plurality of 1-bit Wallace trees by a shift operation based on a clock signal.

A multi-bit accumulator includes 1-bit Wallace trees each configured to perform an add operation on single-bit input data, tristate logic circuits each configured to output a result of the add operation of the 1-bit Wallace trees according to an enable signal provided to the tristate logic circuits, and a shift-adder configured to perform an accumulation operation on the result of the add operation of the 1-bit Wallace trees by a shift operation based on a clock signal.

A composition for optical imprint having excellent transferability of a mold shape and giving a pattern having excellent alkali resistance at high temperature by optical imprint and subsequent heating and a method for producing a pattern using the composition. The composition includes a polysiloxane including a structural unit 1 represented by Formula (a1) and a structural unit 2 represented by Formula (a2) and a polymerization initiator. The polysiloxane has a structural unit 1 content of 30% to 85% by mole and a structural unit 2 content of 15% to 70% by mole based on the entire structural units in the polysiloxane. In the formulae, R.sup.1 represents a group containing an ethylenic double bond, and R.sup.2 represents an aryl group having 6 to 15 carbon atoms which may have a substituent. ##STR00001##

A composition for optical imprint having excellent transferability of a mold shape and giving a pattern having excellent alkali resistance at high temperature by optical imprint and subsequent heating and a method for producing a pattern using the composition. The composition includes a polysiloxane including a structural unit 1 represented by Formula (a1) and a structural unit 2 represented by Formula (a2) and a polymerization initiator. The polysiloxane has a structural unit 1 content of 30% to 85% by mole and a structural unit 2 content of 15% to 70% by mole based on the entire structural units in the polysiloxane. In the formulae, R.sup.1 represents a group containing an ethylenic double bond, and R.sup.2 represents an aryl group having 6 to 15 carbon atoms which may have a substituent. ##STR00001##