A Galois field multiply/multiply-add/multiply-accumulate system includes a multiplier circuit for multiplying two polynomials with coefficients over a Galois field to obtain their product; a Galois field linear transformer circuit responsive to the multiplier circuit for predicting the modulo remainder of the polynomial product for an irreducible polynomial; a storage circuit for supplying to the Galois field linear transformer circuit a set of coefficient for predicting the modulo remainder for...

An insole includes a first layer made of a first slice foam material formed by a foamable polyurethane resin composition. A second layer is made of a second slice foam material formed by bonding together particles of comminuted previously formed foam material with a foamable polyurethane resin composition. The second layer is adhered to an upper surface of the first layer. The second layer has a thickness being greater than that of the first layer.

A multiply adjustable surgical retractor particularly well adapted for abdominal surgery comprising a single mounting shaft carrying a pair of opposed arms slidably mounted thereon and movable in a common plane, the free end of each of the arms carrying a depending, incision engaging hook, and a central arm mounted on the shaft slidably movable along the shaft, pivotal about the axis of the shaft and extensible transversely to the axis of the shaft, and an incision engaging blade on the free end...

Apparatus and method for selectively multiplying or dividing operands by combined add-shift right operations or subtract-shift left operations, the latter preceded and followed by a pre-shift to the left and post-shift to the right. An array of register stages, including an adder, is arranged to shift the register contents and adder output signals selectively right or left, depending on the operation and the value of the least significant bit of the controlling operand. The loading of operands a...

A noninterfering multiply-MAC (multiply accumulate) circuit is described. The circuit is operational to perform a MAC (multiply accumulate) operation and to perform a multiply operation without interfering with the accumulate value of the MAC operation. The circuit includes a first register, a second register, a multiplier circuit, and an accumulate circuit. The first register is addressable using either a primary first address or an alias first address. Moreover, the second register is addressa...

A current driver for magnetic recording comprising a current source, a current steering bridge for directing the current in one of two directions through a magnetic recording head during the length of a data pulse and a head select switch which allows current to flow through the head only for several short pulses occurring during the data pulse such that the magnetic regions impressed by the short pulses form a nearly continuous magnetic region on the recording medium.

The present invention uses a plurality of basic cells to perform a multiply-accumulate operation. Each basic cell is essentially equivalent to a one bit full adder and two flip-flops. These basic cells are connected in such a way that the processing is said to be pipelined.

A multiply extensible lifting frame is provided having a standing mast and one or more middle and inner masts slidable relative to one another, at least one lifting press cylinder connected with the standing mast having a piston connected to the intermediate mast, at least one chain connected at one end with the standing mast and at the other end with the inner mast and supported over a roller on the middle mast, an additional hydraulically actuated element connected with the inner mast and carr...

A drill includes: a drill housing having a chuck collar of the drill made as a polygonal prism or a cylindrical collar having at least a secant flat surface formed thereon, a central drilling tool axially mounted in the drill housing, and a sleeve member having a hollow bore portion centrally formed through the sleeve member, having a coupling adapter formed on a proximal end of the sleeve member concentrically detachably secured to the chuck collar of the drill housing and having a screw driver...

A fibrous ply forming apparatus unit or module, which can be assembled with at least one additional essentially identical fibrous ply forming apparatus to form a multiply paperboard making machine, comprising four horizontally positioned spaced-apart rolls equally spaced from a vertical plane normal to the axes of the rolls, with said rolls being a tail roll, head roll, foot roll and guide roll, parallel to each other, a fibrous ply forming endless fabric belt wound over the four rolls, a low-va...