A memory controller receives reads, memory writes, and cache writes. A pending read is selected and issued to memory. When a response is received from memory, all cache writes are checked to determine whether any correspond to the pending read. If there is a corresponding cache write, the data from the corresponding cache write is used to respond to the pending read. Otherwise, prior memory writes arc checked to determine whether any correspond to the pending read. If there is a corresponding pr...

A proportional, multichannel gain sharing audio circuit has a gain control in the computing leg so that additional weight may be accorded the channel so that the channel is allocated greater gain in proportion to the total amount of signal available to all of the channels combined. Weighting may be adjustable and more than one channel may have such a feature, so that a hierarchy of priority is possible.

It is an object to measure the number of "zeros" standing from the head of an input bit string at a very high speed. A bit string D15-D0 of 16 bits is sequentially inputted to first blocks B7-B0 by each 2 bits. An AND circuit 1 and an OR circuit 2 in the first block detect that the bit string attains "01", "00", respectively. A first multiplexer circuit 9 in each second block B13-B10 selectively recognizes "01", "01" of the bit string, an AND circuit 7 detects that all of one of inputs are "0" a...

Multiple stations exchange information without central supervision. Stations requiring a cycle of access time on a shared time-divided bus participate in a cyclic access resolution process. The station having highest priority for a next bus cycle indicates its precedence to the other stations, and assumes exclusive use of the bus in the next cycle. The bus may comprise separate sections for data and response communications. Separate access resolution processes are conducted relative to each sect...

A priority flow divider is disclosed for dividing hydraulic fluid flow between a steering circuit and an auxiliary circuit thereby providing better efficiency and greater productivity for the auxiliary circuit. The priority flow divider includes a cylindrical housing having a slidable spool valve therein, and the housing further includes an inlet port connected to the steering pump in the steering circuit, a discharge port connected to the steering valve, in the steering circuit, and a discharge...

In a priority control device the supply flow to the lower-ranking consumer is set by a flow control valve (pressure balance) whose control chamber subjected to the control pressure of the lower-ranking consumer can be relieved of pressure via a proportional valve. The proportional valve is adjusted in dependence upon the load pressure of the priority consumer so that the flow of fluid to the lower-ranking consumer is throttled by the pressure balance when the pressure difference at the priority ...

A network priority determining system in which the percentage of utilization of the network transmission medium is significantly increased and the number and complexity of hardware components is reduced. When the network is not being used for transmission of data packets, a free token is circulated having a priority controlling field and a reservation field, while when the network is to be used for transmission, a busy token is circulated. To begin transmission, a network can catch a free packet...

A data processing machine includes an instruction unit that decodes and organizes a flow of instructions for processing data. In response to certain instructions, the instruction unit generates requests for storage unit resources. In addition, results generated in the instruction unit in response to certain instructions are supplied for storage in the storage unit. The storage unit selects in response to priority logic from completing requests for storage unit resources, including a high speed c...

A multiple user priority network is provided by a double section priority PROM. One section of the PROM is accessed by a current priority code stored in a priority register, and new request signals that appear on lines that are coupled to the requesting components to provide an address which contains a new access code. The second section of the PROM is accessed by the new access code, which is stored in a channel access code register, and the current priority code in the priority register to pro...

A method and system for priority transcribing of a particular unit of dictation in a dictation-transcription system in which units of dictated material may be simultaneously recorded on, and transcribed from, a single continuous recording medium. The portion of the continuous recording medium from which dictated material has been transcribed is transferred to one of a plurality of bins or to one of a plurality of locations within a single bin from which it is withdrawn to be used for the recordi...