Abstract: An interposer adapted to interrupt the power source of a streetlight and intervening between an existing photo-controller and the streetlight with a lamp connected to a power line, the interposer having a body having a top and a bottom, the top of the body having an electrical receptacle, the bottom of the body having an electrical plug, the body containing a microprocessor and a load switch connected to the main power line and lamp, wherein the microprocessor instructs the load switch to selectively connect and disconnect the power line and the lamp, or to dim a multi-level lighting device.

Abstract: A touchless input device for a computer replaces a computer mouse and does not require physical contact between the user-operator and any part of the input device. The touchless input device uses multiple, linear near infrared, optical sensors and multiple near infrared light emitters working in a plane in space, all held inside a frame with an opening that defines the detection region. The device images the plane and processes the images to determine the presence, location and velocity of objects in the plane. The operator introduces an object, such as a finger, into the plane and moves the object in the plane to emulate the motion of a computer mouse across a desktop. Mouse buttons and other functions are emulated by unique motions in the plane. The device communicates these motions and events to the computer typically using a Universal Serial Bus.

Abstract: This system includes a base unit having an array of data storage locations mounted in a rectangular form factor along a back wall of the housing and at least one read/write device. The robotic mechanism includes a stationary vertical shaft on which is mounted on a horizontal track, movable in the vertical direction. The horizontal track extends from end to end of the base unit housing. The robotic mechanism includes a rotatable gripper that moves on the horizontal track and swivels on a pivot about an axis that is parallel to the vertical shaft to provide access to all interior surfaces of the base unit housing where data storage locations reside. An expansion module, comprising a rotary carousel of data storage locations, can be connected to either end of the base unit which enables the robotic mechanism to access the data storage elements within the expansion module without modification.

Abstract: This system includes a base unit having an array of data storage locations mounted in a rectangular form factor along a back wall of the housing and at least one read/write device. The robotic mechanism includes a stationary vertical shaft on which is mounted on a horizontal track, movable in the vertical direction. The horizontal track extends from end to end of the base unit housing. The robotic mechanism includes a rotatable gripper that moves on the horizontal track and swivels on a pivot about an axis that is parallel to the vertical shaft to provide access to all interior surfaces of the base unit housing where data storage locations reside. An expansion module, comprising a rotary carousel of data storage locations, can be connected to either end of the base unit which enables the robotic mechanism to access the data storage elements within the expansion module without modification.

Abstract: This system includes a base unit having an array of data storage locations mounted in a rectangular form factor along a back wall of the housing and at least one read/write device. The robotic mechanism includes a stationary vertical shaft on which is mounted on a horizontal track, movable in the vertical direction. The horizontal track extends from end to end of the base unit housing. The robotic mechanism includes a rotatable gripper that moves on the horizontal track and swivels on a pivot about an axis that is parallel to the vertical shaft to provide access to all interior surfaces of the base unit housing where data storage locations reside. An expansion module, comprising a rotary carousel of data storage locations, can be connected to either end of the base unit which enables the robotic mechanism to access the data storage elements within the expansion module without modification.

Abstract: A high density tape library includes a plurality of rectangular platforms mounted adjacent one another for movement in a plane, with tape cassette magazines mounted on the platforms. The platforms have depending guide and cam follower members for movement around a generally rectangular track under the control of a series of cams. At a cassette handling station, selected tape cassettes are shifted from a magazine to a tape drive.

Abstract: A high density tape library includes a plurality of rectangular platforms mounted adjacent one another for movement in a plane, with tape cassette magazines mounted on the platforms. The platforms have depending guide and cam follower members for movement around a generally rectangular track under the control of a series of cams. At a cassette handling station, selected tape cassettes are shifted from a magazine to a tape drive.

Abstract: A high density tape library includes a plurality of rectangular platforms mounted adjacent one another for movement in a plane, with tape cassette magazines mounted on the platforms. The platforms have depending guide and cam follower members for movement around a generally rectangular track under the control of a series of cams. At a cassette handling station, selected tape cassettes are shifted from a magazine to a tape drive.

Abstract: A high density tape library includes a plurality of rectangular platforms mounted adjacent one another for movement in a plane, with tape cassette magazines mounted on the platforms. The platforms have depending guide and cam follower members for movement around a generally rectangular track under the control of a series of cams. At a cassette handling station, selected tape cassettes are shifted from a magazine to a tape drive.

Abstract: A compact tape cassette or cartridge storage and accessing system includes a longitudinally extending frame with two endless link chains, one on each side of the frame; and cassette carriers are mounted in two layers by linkages to the chains, with one layer moving forward and the other to the rear. At the ends, a cam follower on each cassette carrier, and a control groove, and associate guide and latch members, tilt the cassette carriers to smoothly shift them from one layer to the other. With 8 mm tape cassettes, the height of the system is within 1¾ inches, for compatibility with standard electrical equipment racks.

Abstract: A cassette handling system has a plurality of storage units each storing a plurality of cassettes and at least one tape drive unit. A carrier assembly transports a cassette from one unit to another by extracting the cassette from one of the units and inserting the cassette into another unit. An engaging assembly with a pair of couplers is mounted on a carrier of the carrier assembly. The couplers engage the cassette and hold the cassette above a reference platen on the top of the carrier. The reference platen defines a position from which the cassette is insertable into the units without obstruction. The engaging assembly disengages the cassette onto the reference platen and immediately re-engages the cassette in an accurately determined vertical position. The cassette is then inserted into the desired unit. The carrier assembly also has a threaded shaft which is tensioned for avoiding or damping vibration due to the movement of various components thereof.

Abstract: A low profile, high-capacity streaming tape drive system primarily for rack-mounted applications has a height of less than six inches, and a weight of less than 60 pounds. The main base plate of the tape drive has downwardly extending short tubes upon which the motors for the supply reel, the take-up reel and for the loading and cooling blower are mounted. The stator of each motor may be mounted on the outside of the associated tube, and the main drive shaft for the motor may be mounted on bearings within the tube and a permanent magnet rotor mounted by a cup-shaped member is arranged to rotate around the stator, thus providing motors which take up very little vertical height. Air ducts for cooling and for automatically threading the tape from the supply reel to the take-up reel are formed by integral ridges on the top and bottom of the main base plate forming U-shaped channels which are closed by sheet metal strips.

Abstract: A nine track digital tape system operating in accordance with a feedback shift register redundancy scheme, includes in both the encoding and writing section and in the reading and error correction section, arrangements for shifting successive bytes of information by one digit place, and adding the shifted bytes, to provide a "low product" and a "high product", constituting an address or "pointer" to a modifier table, from which a modifier value is obtained to be added to the "low product". In the error correction circuitry, additional tables, using a sample parity error vector and an identification of the columns in which errors occur, as "pointers", provide data which is used to calculate error correction vectors. Instead of using feedback registers, and complex decoding hardware, the circuitry obtains the same result as would have been obtained by the hardware, in a unique manner, to provide a simple, high speed, error correction system.