A relatively low cost, high speed search processor for efficiently scanning, inserting, and clearing certain data in an ordered linked list of data regarding a plurality of video scan line segments, which segments define mathematical elements (e.g. polygons) and corresponding portions of a three dimensional image. Data items containing information regarding the starting coordinates of the segments of a scan line are encoded and stored in the linked list according to the magnitudes thereof. The p...

Radar apparatus particularly adapted for weather and search operations wherein reflected pulse energy is effectively time gated and separately filtered and processed for output display indication. The apparatus transmits relatively low power output energy in directive propagation and reflected energy is then mixed with a coherent signal to derive time-displaced doppler frequency electrical signals representative of energy returned. The time-displaced doppler frequency signals are then processed ...

Herein described is an ultrasonic nondestructive material tester which is useful in testing cylindrical objects, such as pipes or rods. Included in the device is a search unit, comprised of a housing which includes a pair of shoes outwardly extending therefrom, which is adapted to ride on the outside diameter of the pipe or rod. A search unit is disposed in a manner so that ultrasonic energy radiated therefrom is always normal to the outside diameter of the workpiece. A bracket is affixed to the...

A received RF signal is mixed with the output of a voltage-controlled local scillator to provide an IF signal which is simultaneously passed to a frequency discriminator and a circulating memory. Control voltage for the oscillator is provided by an AFC unit which comprises an integrator receiving selected constant voltage inputs. During the search mode a search ramp is generated by the integrator. A flyback circuit causes the search voltage to repeat its traverse over a prescribed range. Bipolar...

The invention contemplates efficient, automatic retrieval of selected quantities of specific items from an inventory which may involve a large variety of items. The inventory is presented via a two-dimensional matrix of stationary storage compartments having open sides in essentially a single retrieval-access plane common to the compartments of the matrix. Each compartment accommodates a stacked plurality of like items, with an end item of each stack presented at a retrieval-access plane. Digita...

An electronic tuning system for a heterodyne type receiving device is disclosed wherein the receiving device consists of a voltage tuned radio frequency amplifier, a voltage tuned local oscillator, a first control circuit having an output which varies as a function of the magnitude of a received signal, and a second control circuit having an output which varies as a function of the frequency of an intermediate frequency signal within the receiver. Electronic search tuning is achieved by providin...

A broadcast receiver includes an automatic search tuning arrangement, the tuning being automatically selected on operation of switches which correspond to a number of regions (A . . . F) and other switches which correspond to the chosen program (VF, P.sub.1, P.sub.2 or P.sub.3). These switches cause a control circuit (59) to address a gate circuit (95) to sequentially produce an output corresponding to a subarea of a region to be applied to an address memory (93) of a memory circuit (23). The ad...

In a VTR of the type having information recorded in adjacent tracks disposed angularly across the direction of tape travel, a search mode playback arrangement is incorporated having a pair of transducer gaps which are alternately enabled to continuously pickup coherent information while the playback arrangement scans across adjacent tracks during a search mode.

A knowledge storage and retrieval method is performed to result in a single address number of a storage region which represents a large quantity of information. A first character of a data sequence and a starting number are directed into a two-position buffer to form an input matrix. The storage locations of the storage region are addressed to see if the matrix is found in the storage region. If the matrix is found, the address number of the storage location of the storage region at which it is ...

A netted, search radar system to defeat monopulse anti-radiation missiles utilizing a plurality of search radars scanning asynchronously with differently coded signals. The coded pulse trains from each radar precisely timed and frequency locked to one another in order that all radar units simultaneously emit pulses on or at substantially the same r.f. carrier frequency.