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Class Information
Number: 710/40
Name: Electrical computers and digital data processing systems: input/output > Input/output data processing > Input/output access regulation > Access prioritization
Description: Subject matter further comprising means or steps for preferring certain of the peripherals, or digital data processing systems or computers over others in servicing requests therefrom to transfer data.

Sub-classes under this class:

Class Number Class Name Patents
710/41 Dynamic 149
710/42 Group 65
710/43 Physical position 59
710/44 Prioritized polling 68
710/45 Time-slot accessing 143

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
5848292 System for data transmission between a wedge microcontroller and a personal computer microcontroller by disconnecting the keyboard microcontroller and placing the same in hold state Dec. 8, 1998
5841983 Communication system for transmitting divisional messages back-to-back by pre-setting blank duration between the divisonal messages prior to transmission Nov. 24, 1998
5832304 Memory queue with adjustable priority and conflict detection Nov. 3, 1998
5829043 Coupler circuit and its use in a card and process Oct. 27, 1998
5828902 Disc control device having reduced seek time by scheduling disc read requests Oct. 27, 1998
5812799 Non-blocking load buffer and a multiple-priority memory system for real-time multiprocessing Sep. 22, 1998
5809335 Data transfer apparatus capable of handling DMA block transfer interruptions Sep. 15, 1998
5805864 Virtual integrated cartridge loader for virtual tape storage system Sep. 8, 1998
5802581 SDRAM memory controller with multiple arbitration points during a memory cycle Sep. 1, 1998
5794073 Arbitration system for a shared DMA logic on a network adapter with a large number of competing priority requests having predicted latency field Aug. 11, 1998
5794072 Timing method and apparatus for interleaving PIO and DMA data transfers Aug. 11, 1998
5790895 Modem sharing Aug. 4, 1998
5790892 Information handling system for modifying coherency response set to allow intervention of a read command so that the intervention is not allowed by the system memory Aug. 4, 1998
5784648 Token style arbitration on a serial bus by passing an unrequested bus grand signal and returning the token by a token refusal signal Jul. 21, 1998
5784573 Multi-protocol local area network controller Jul. 21, 1998
5784647 Interface for fetching highest priority demand from priority queue, predicting completion within time limitation then issuing demand, else adding demand to pending queue or canceling Jul. 21, 1998
5781800 System for processing activation request of port by counting number of busy response for activation request and response of busy end association with another port Jul. 14, 1998
5781927 Main memory arbitration with priority scheduling capability including multiple priorty signal connections Jul. 14, 1998
5765027 Network controller which enables the local processor to have greater access to at least one memory device than the host computer in response to a control signal Jun. 9, 1998
5765189 Method and apparatus for computer disk drive buffer management Jun. 9, 1998
5761534 System for arbitrating packetized data from the network to the peripheral resources and prioritizing the dispatching of packets onto the network Jun. 2, 1998
5742831 Methods and apparatus for maintaining cache coherency during copendency of load and store operations Apr. 21, 1998
5710549 Routing arbitration for shared resources Jan. 20, 1998
5694617 System for prioritizing quiesce requests and recovering from a quiescent state in a multiprocessing system with a milli-mode operation Dec. 2, 1997
5694616 Method and system for prioritization of email items by selectively associating priority attribute with at least one and fewer than all of the recipients Dec. 2, 1997
5694121 Latency reduction and routing arbitration for network message routers Dec. 2, 1997
5685010 Data transfer control device for controlling data transfer between shared memories of network clusters Nov. 4, 1997
5655152 System for allocating data output requests to output units having different output formats in accordance with data output format compatibility and priority characteristic Aug. 5, 1997
5649157 Memory controller with priority queues Jul. 15, 1997
5640518 Addition of pre-last transfer acknowledge signal to bus interface to eliminate data bus turnaround on consecutive read and write tenures and to allow burst transfers of unknown length Jun. 17, 1997
5630173 Methods and apparatus for bus access arbitration of nodes organized into acyclic directed graph by cyclic token passing and alternatively propagating request to root node and grant signal to t May. 13, 1997
5625846 Transfer request queue control system using flags to indicate transfer request queue validity and whether to use round-robin system for dequeuing the corresponding queues Apr. 29, 1997
5623672 Arrangement and method of arbitration for a resource with shared user request signals and dynamic priority assignment Apr. 22, 1997
5613067 Method and apparatus for assuring that multiple messages in a multi-node network are assured fair access to an outgoing data stream Mar. 18, 1997
5603061 Method for prioritizing memory access requests using a selected priority code Feb. 11, 1997
5592623 System for a distributed wireless star network with terminal devices and a concentrator including start bits and ORing logic for resolving transmission contention Jan. 7, 1997
5581791 Method for transmitting high-priority programs and data in a communication system Dec. 3, 1996
5574951 System for providing a time division random access including a high speed unidirectional bus and a plurality of function cards connected in a daisy chain Nov. 12, 1996
5568485 Priority encoder Oct. 22, 1996
5564025 Apparatus for arbitrating requests for access from slave units by associating the requests with master units and determining the relative pendency thereof in a radio base station transceiver Oct. 8, 1996
5553310 Split transactions and pipelined arbitration of microprocessors in multiprocessing computer systems Sep. 3, 1996
5548792 Multi-user information retrieval system with transfer delay and high bit rate Aug. 20, 1996
5548793 System for controlling arbitration using the memory request signal types generated by the plurality of datapaths Aug. 20, 1996
5546543 Method for assigning priority to receive and transmit requests in response to occupancy of receive and transmit buffers when transmission and reception are in progress Aug. 13, 1996
5546541 System for routing transaction commands to an external resource manager when the target resource is not managed by the local transaction managing computer program Aug. 13, 1996
5544346 System having a bus interface unit for overriding a normal arbitration scheme after a system resource device has already gained control of a bus Aug. 6, 1996
5541582 Apparatus for data communication switching Jul. 30, 1996
5530880 Cooperative operation using workstations having operative rights assigned Jun. 25, 1996
5522066 Interface for accessing multiple records stored in different file system formats May. 28, 1996
5522080 Centralized control SIMD processor having different priority levels set for each data transfer request type and successively repeating the servicing of data transfer request in a predetermined May. 28, 1996

1 2 3 4 5 6 7 8 9 10 11

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