A data processor having: an instruction fetch unit for acquiring an instruction; and an instruction execution unit for execution, by pipeline processing, the instruction acquired by the instruction fetch unit. In the data processor, the instruction execution unit includes an execution pipeline pipelined into two or more stages for execution of the execution instruction, and an execution pipeline control unit capable of changing a stage to arrange an operation by the execution unit in according t...

A carriage which completes one course of knitting to the knitting end of a fabric is stopped. Knitting in a next course is performed when the carriage reverses its moving direction and re-starts its movement. Since the knitting yarn is not knitted to the fabric until a carrier brought by the carriage reaches a position of a knitting needle holding the stitch of the fabric at the knitting end, the knitting yarn existing in a feeding path between a yarn feeding mechanism and the carrier is excessi...

A needle selector for a knitting machine which selects a working needle by using a piezoelectric body having piezoelectric element is provided, in which an intermediate position between a rear end portion and front end portion of the piezoelectric body movably supported by a housing is rotatably held by the housing by using a rotary member to stabilize vibration of the piezoelectric body, a sectional structure of the rotary member 3 on a plane which is perpendicular to an axis of the rotary memb...

An object of the invention is to control the yarn length as appropriate in a tubular knitted fabric including a drop loop, regardless of the presence of crossover. For front and back needle beds, ones of those indicated by capitals ABC . . . among odd-numbered or even-numbered ones are allocated to a front portion thereof and the other portions indicated by lower cases abc . . . are allocated to a back portion thereof. At knitting needles ABC . . . which actually form stitch loops perform knitti...

A selection device for knitting machines having a rotating cylinder with slots around its circumference for accomodating a knitting needle and an associated knitting jack in each slot, the device including a selection tape loop for controlling the jack selectors of the knitting machine. The jack selectors are movable between an operative jack position and a non-operative jack position. Stationary detecting elements co-act with the tape loop for determining the positions of the jack selectors to ...

A general purpose logic chip may be replicated for use to construct both the arithmetic unit and the control sections of a computer or other digital data processing or logic circuitry. The chip includes a number of features which when taken together permits its use for a wide variety of data processing functions, including as noted above, the basic arithmetic logic unit and associated functions in addition to micro-operational code control functions. The chip includes a 4-bit arithmetic unit and...

The movement of each of a plurality jacks or rocking pressers of a ferromagnetic material a circular knitting machine between a knitting and a non-knitting position is accomplished by the cooperation of the fields of a permanent magnet and a selectively actuable electromagnet which are magnetically isolated from each other. The portion of the jack where such fields intersect may be recessed to accomplish jack positioning with minimum expenditure of magnetomotive force. The airgap in the pole str...

A selection device for oscillating jacks in a circular knitting machine comprising selection levers pivotal between an active position in which the jacks are radially thrust by a thrust profile of the levers, and an inactive position. The levers are moved into one of these positions by engagement of a control profile of the levers by the butts and are held in this position by a permanent magnet. The flux of the magnet can be neutralized temporarily by program-controlled windings to permit releas...

Patterning mechanism for electrically controllable knitting machines for selecting the knitting needles or their control elements, with which are associated bendable control springs having at least two positions for initiating selection operations according to pattern, for the completion of which at least a further auxiliary means is provided, the control springs being freely-oscillating active bending vibrators, as herein defined. The control springs may consist of piezo-electric elements contr...

A circular knitting machine comprises a rotatable knitting needle cylinder which carries a plurality of knitting needles through knitting stations. A needle-moving jack is pivotally connected with each of the knitting needles and is movable in a needle-raising stroke and a needle-lowering stroke to effect needle raising and lowering, respectively. Each of the needle-moving jacks has a butt thereon which is received in a cam track which operates to effect the raising and lowering of the needle-mo...