Where the first bit position having a predetermined value; e.g., 1, as viewed from the most significant bit (MSB) or least significant bit (LSB) of the input data, 1 is subtracted from the input data to provide a subtraction result. This subtraction result and the input data are provided to the inputs of an exclusive OR gate is applied to a priority encoder capable of encoding the first bit position having a 1 as viewed from the MSB. The output represents the first bit position having a 1 as vie...

A proportional priority flow regulator valve structure comprising a cartridge-type modulated orifice valve element (MOS) in a composite multiple element valve assembly. The MOS valve operates in an hydraulic circuit to receive pressurized fluid from a source of supply and responds to variations in fluid pressure and fluid flow rates acting hydraulically on a pair of inter-dependent spring-biased spools of the valve to provide a modulated orifice for delivery of a controlled fluid flow.

A system for switching information packets assigned with two levels of semantic priority between entering time multiplex lines and outgoing time multiplex lines, a storage address of a packet in a buffer memory of the system being stored in a queueing file associated with each outgoing time multiplex line designated to transmit the packet, comprising a field point (state) memory whose words each are comprised of as many bits as there are outgoing time multiplex lines, the addresses of the the fi...

A system schedules traffic flows on an output port using circular memory structures. The circular memory structures may include rate wheels that include a group of sequentially arranged slots. The traffic flows may be assigned to different rate wheels on a per-priority basis.

An improved priority logic scheme for setting priority values determining priority of interrupts. Multi-level priority allows for varied priority values for single word and multiple-word block segment transfers. Registers allow for programmable priority values which can modify priority values during operation. Simplicity of the invention provides for priority circuitry which does not depend on clock cycles. Flexiblity of the circuitry allows for additional devices to be implemented within the sc...

A calendar having double length leaves is disclosed. Each double length leaf displays the second of two consecutive months (or other units of calendar time). The month takes up only half of the double length leaf or, in other words, the month occupies a space approximately defined by a single length of any given double length leaf. Each of the double length leaves functions, as a result, to refold and/or reposition in order to display its second of two consecutive months as the first of the next...

Disclosed are methods and apparatus for prioritization of transform domain coefficient data representing sources such as, but not limited to, single images and images in motion, so as to produce a data rate not exceeding the capacity of the transmission channel used in transmitting the data to a receiver and to simultaneously minimize the perceived distortion when the image is reconstructed at the receiver. One disclosed aspect relates in particular to transmission of Pyramid Transform coefficie...

A microcomputer comprising memory 60 and a process is arranged to execute a plurality of concurrent processes and share its time between them. The microcomputer includes as register (51) for indicating a current process as well as a collection of processes awaiting execution. Each process has a memory location 66 to provide an indication of a next process in a linked list of processes. Each process has an allocated priority and a separate linked list is formed for each priority. A register (53) ...

An automatic switching valve mounted between two fluctuating pressure sources automatically switches from one source to the other to supply gas or liquid from the source that is under the higher pressure. A T- housing conveys gas or liquid from either side and out of the central stem. Tapered, spring loaded plugs or valves in either side engage with tapered seats and are maintained in contact with the seats by springs which permit one or the other valve to open when the pressure on one valve exc...

A rejection rate of a selective sequential processing apparatus such as a mail sortation apparatus is reduced by combining results of at least two feature discrimination arrangements such as optical character recognition and a bar code reader based on comparisons of results of the feature discrimination results against each other and against expected values to validate at least one result and rejecting articles for manual processing only when no feature discrimination result can be validated. Th...