A system and method for establishing communications between first and second parties. In one embodiment, a request initiated by a first party is generated for establishing a communications channel over a first communications network between the first and second parties. An intermediary server device interrupts receipt of the request and attempts to generate the channel. If unsuccessful in the attempt, the server device translates the request into a data network object, which is passed to the sec...

A method, system and article of manufacture to provide a remote terminal capability. A local system is initialized, the local system including a Keyboard-Video-Mouse (KVM) and a local controller. The local controller is initialized for KVM functionality. A request is sent to a target system to active KVM functionality at the target system, the target system communicatively coupled to the local system. KVM input/output (I/O) traffic is passed between the KVM and the target system via the local co...

The meter comprises a housing having a pair of angularly disposed apertures formed therein. A selenium photovoltaic barrier layer cell is mounted beneath each aperture. The cells are connected in parallel to a microammeter for measuring the current generated by them. A filter is provided over each aperture. This filter is adapted to pass only ultraviolet radiation having wavelengths between 300 and 390 millimicrons in amounts which are proportional to their tanning effectiveness and relative abu...

A dual use typewriter suitable for use in the writing of Roman characters as required by Western European languages as well as logograms characteristic of Far Oriental languages. When the typewriter is arranged for use with Roman letters the carriage is advanced a uniform distance with the striking of each key. A double case shift provides for upper and lower case Roman characters while the Oriental character elements are provided by the third type bar position. In order to form logograms, the c...

The capability of a fault locate line in a transmission system is extended through selective powering of fault locate amplifiers by polarity reversal of the line power. A standard test procedure can be duplicated to evaluate the operation of unattended repeater stations associated with fault locate amplifiers in each section of the fault locate line as a separate group by simply reversing the powering polarity.

A beam addressable display and storage tube having pointwise erase capability. Each localized storage element has associated therewith an erase element which is energized by a writing beam or another beam to provide output energy for erasing the information contained in the associated storage element. In addition to storage and display, memory applications exist. Any beam addressable storage element can be used including those which form color centers or which have their color centers altered up...

A ratio controller having circuitry for establishing a zero ratio. A master signal provided by a master controller is applied to the upper end of a bridge circuit consisting of two parallel branches. The first branch includes a series-connected potentiometer winding. The second branch includes two series-connected resistors. The ratio of impedances in the second branch can be made equal to the ratio of impedances in the first branch taken between the nominal zero setting of the potentiometer and...

A propeller with two complete sets of blades on the same hub. One set has ng blades, the other short, so that in the event of collision with an object the longer blades will be the first to suffer damage thereby leaving the shorter blades undamaged and able to propel the vehicle.

A system for operating actuators, such as electrically operable door locks, at one or more remote stations by means of a control unit at a central station. A lock signal of predetermined frequency is generated upon operation of a lock button on the control unit. The lock signal is supplied to the remote station via a main communication channel to deenergize power units on the doors and permit the spring-loaded door locks to lock. An indicator lamp is provided at the central station to verify the...

A method for storing data in a fault-tolerant storage subsystem having an array of failure independent data storage units, by dividing the storage area on the storage units into a logical mirror area and a logical stripe area, such that when storing data in the mirror area, duplicating the data by keeping a duplicate copy of the data on a pair of storage units, and when storing data in the stripe area, storing data as stripes of blocks, including data blocks and associated error-correction block...