A pattern duplicating apparatus including a large rigid frame suspended by trolleys from an I-beam and carrying longitudinally spaced tracer and cutter assemblies. The frame is manually displaceable linearly in the longitudinal and vertical directions and pivotally about the longitudinal axis. The frame suspension includes interconnected sprockets and chains to ensure a pure rectilinear vertical displacement.

The pattern mechanism uses final control elements which are controlled in accordance with a pattern for producing a controlled shogging motion of the guide bars or strips. Additional program-controlled control elements are added to avoid a loss in the shogging stroke. These latter elements are optionally controlled via a program carrier and prevent the pattern yarns controlled by the guide bars from being positioned into a faulty sinker lane irrespective of the length of the shogging stroke. The...

A pattern discriminator receives scanning data obtained by raster scanning objects within predefined window regions with a photoelectric converter, converts the scanned data into pixel binary data by using a threshold value dependent upon the scanning position and window region and evaluates the binary data in accordance with predetermined criteria to produce an output signal indicative of the evaluation. A memory stores data which represents the window regions in a compressed arrangement indica...

In a main pattern memory are stored an increment command pattern and an enable control pattern in addition to test patterns. The main pattern memory is read out with an address from an address control circuit. The increment command pattern thus read out of the main pattern memory instructs incrementing of an address pointer, and a partial pattern memory is read out according to the contents of the address pointer. In accordance with the enable control pattern read out of the main pattern memory,...

A pattern recognizer recognizes an unknown pattern by hypothesizing the identity of the unknown pattern and then testing to see whether the identification can be refuted. An identification that cannot be refuted is the correct identification of the unknown pattern.

A laced pattern formed of a base sheet into which holes are punched in a prearranged sequence. Flexible strips fixed by lacing interwoven into the holes and transversely arranged with respect to the strips completes the pattern. The individual elements may be used in a kit for handicraft and the finished laced pattern has utility as wearing apparel or any decorative panel.

A pattern, useful in providing data to a processing scheme to control the fine positioning of a transducer head of a disk drive unit, comprises an erased gap followed by an automative gain control (AGC) information burst followed by a first burst of servo control information followed by a second burst of servo control information. The pattern is written on a disk by the disk drive unit using a mechanical index on an armature associated with the rotation of the disk as a primary time reference, w...

A pattern generator in which a workpiece to be machined into a desired pattern shape is held in vacuum and is irradiated with a laser beam condensed to be fine, while scanning the laser beam so as to depict the desired pattern shape, whereby the workpiece is directly machined in conformity with the desired pattern shape. As the workpiece, one in which a shading film (for example, chromium film) is deposited on a transparent glass substrate is employed, and it is irradiated with the laser beam in...

Reverse contour changes, e.g., changes from a convex peripheral portion to concave peripheral portion are scored in a glass sheet by moving the glass sheet along an X-Y axes while pivoting a scoring wheel housing about an axis transverse to the first and second axes so as to positively rotate the housing in response to contour changes. Further, a pattern cutter includes a sheet support which is mounted for movement along X and Y axes and about a pivoting Z axis relative to a stationary scoring w...

A two dimensional pattern such as a movement matrix generated in an inter-frame video coder is classified by forming a weighted sum modulo x of a set of values representing the pattern. The values may be pattern element values, or quantised representations of groups of elements. The weighted sum is used to access a look-up table containing class identification words. Optionally, motion vectors may be generated by comparing class identification words derived from successive frames of a picture.