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Patent # Description
US-5,265,236 Method and apparatus for increasing the speed of memory access in a virtual memory system having fast page mode
In the memory access unit of the present invention, the memory request logic is centralized in the memory management unit (MMU). The MMU instructs the MCU, which...
US-5,265,233 Method and apparatus for providing total and partial store ordering for a memory in multi-processor system
An improved memory model and implementation is disclosed. The memory model includes a Total Store Ordering (TSO) and Partial Store Ordering (PSO) memory model to...
US-5,265,218 Bus architecture for integrated data and video memory
A bus architecture and protocol for integrated data and video memory. A high speed dedicated memory bus is coupled to a memory controller. The memory controller...
US-5,264,840 Method and apparatus for vector aligned dithering
A method and apparatus for dithering vectors in which the dither matrix is aligned to the vector and not to the display coordinate space. The dither matrix is...
US-5,264,117 Distillation of hydrocarbons
Where side stream distillate strippers are used in the distillation of hydrocarbons, the required size of the distillation column and the amount of stripping gas...
US-5,263,281 Vertically pivotal security gate
A security gate system including a supporting structure and a gate mounted on the supporting structure for pivotal movement about a generally horizontal pivot...
US-D341,582 Secure monitor housing
US-5,263,142 Input/output cache with mapped pages allocated for caching direct (virtual) memory access input/output data...
An I/O cache is provided to a computer system comprising a main memory and a number of DVMA/DMA I/O devices for caching I/O data between the main memory and the...
US-5,263,139 Multiple bus architecture for flexible communication among processor modules and memory subsystems and...
A multiple bus architecture for flexible communication between processors, memory subsystems, and specialized subsystems over multiple high performance...
US-5,262,973 Method and apparatus for optimizing complex arithmetic units for trivial operands
When an arithmetic operation is to be performed, the operands are concurrently sent to the arithmetic unit to perform the complex arithmetic operation and into...
US-5,261,663 Golf club head and method of forming same
A golf club head has a main body portion formed by an investment casting of material such as stainless steel, beryllium copper, titanium, and aluminum. The face...
US-5,261,648 Computer isolating device
The present invention discloses an isolating device comprising an isolator designed to reciprocatively support the housing of a computer by means of an insert...
US-D341,417 Blow heater
US-D341,358 Secure monitor housing
US-5,261,098 Method and apparatus for deriving object type and obtaining object type attribute values
In a computer system where applications and data manipulated by the applications are implemented in an object oriented manner, an object type and its deriving...
US-5,261,054 System for storing a history of sampled pointer signals when a pointer interrupt routine is interrupted by a...
In a computer system, an arrangement for storing condition signals indicative of the position of a pointing device and the condition of a button thereof,...
US-5,261,029 Method and apparatus for the dynamic tessellation of curved surfaces
A method and apparatus for determining a uniform step size with respect to pre-transformation derivative bounds for tessellation of a graphic primitive wherein...
US-5,260,898 Result cache for complex arithmetic units
Individual multi-cycle statements or complex arithmetic units such as dividers, multipliers and adders are replaced with a fast, single-cycle cache lookup. This...
US-5,260,892 High speed electrical signal interconnect structure
An improved high speed, high density Dynamic Random Access Memory (DRAM) electrical signal interconnect structure which has particular application to computer...
US-5,260,854 Modular circuit board placement system
A modular circuit board placement system is disclosed that provides for flexible placement of daughterboards, for minimal bus signal path lengths between...
US-5,259,783 Dual height card retainer
An easy to engage and disengage dual height card retainer that facilitates removal of daughterboards is disclosed. Daughterboards have a two-tier staggered...
US-D340,925 Computer mouse
US-5,256,912 Synchronizer apparatus for system having at least two clock domains
The present invention, a synchronizer, utlizes a plurality of clocking signals generated by a specialized clocking circuit, in conjunction with synchronizer...
US-5,255,918 Golf club head and method of forming same
A golf club head comprising a main body portion formed by a steel casting; a face plate formed of forged steel, and having a periphery, a ball striking front...
US-5,255,379 Method for automatically transitioning from V86 mode to protected mode in a computer system using an Intel...
A method for transitioning an Intel processor from virtual 8086 (V86) mode to protected mode operation which detects when a virtual V86 processor attempts to...
US-5,255,376 Method and apparatus for supporting a dual bit length protocol for data transfers
An improved high speed bus and protocol are disclosed that are capable of transferring data in multiple modes. The bus is particularly useful in computer systems...
US-5,254,740 Metal phthalocyanine oxidation catalysts
As a new composition of matter, alkali metal or ammonium or tetraalkylammonium diazidoperfluorophthalocyanatoferrate. Method of oxidizing alkanes by contact with...
US-5,253,702 Integral heat pipe, heat exchanger, and clamping plate
An integral heat pipe, heat exchanger, and clamping plate. A base plate functioning as an evaporator has disposed in it a multiplicity of intersecting parallel...
US-5,253,339 Method and apparatus for adaptive Phong shading
An adaptive shading method is utilized to generate shaded images in real time. The technique to shade the image is determined according to the curvature of the...
US-5,251,312 Method and apparatus for the prevention of race conditions during dynamic chaining operations
In the system of the present invention, the limitations imposed by the physical limitations of the DMA controller are overcome by storing the channel control...
US-D340,040 Peripheral disk drive housing
US-5,249,133 Method for the hierarchical comparison of schematics and layouts of electronic components
The present invention takes advantage of the hierarchical nature of the design to perform a hierarchical comparison on as many blocks and sub-blocks which can be...
US-5,248,429 Method and system for transferring materials
A method and system for transferring a flowable material from a container to a receiver through a flexible tubing which communicates with an opening defined in...
US-D339,804 Combined radio and speakers
US-5,247,648 Maintaining data coherency between a central cache, an I/O cache and a memory
An I/O write back cache memory and a data coherency method is provided to a computer system having a cache and a main memory. The data coherency method includes...
US-D339,573 Peripheral tape drive housing
US-5,245,702 Method and apparatus for providing shared off-screen memory
A method for allowing direct graphics access to backup storage areas in frame buffer memory used for retained windows and controlled by a graphics accelerator...
US-5,244,772 Silver halide emulsion with scratch abrasion resistance
The present invention features a negative-type, silver halide photographic emulsion containing hydrazides that has reduced scratch sensitivity (i.e., the...
US-5,243,697 Method and apparatus for selecting button functions and retaining selected options on a display
A graphical user interface method wherein a user can retain frequently used menus on the display screen in an intuitive manner. A computer system is coupled to a...
US-D339,040 Head and shaft for a combination tool
US-5,241,062 Synthetic route to meso-tetra hydrocarbyl or substituted hydrocarbyl porphyrins and derivatives
The hydroxyl group in a pyrrolic compound having in the 2-position thereof a group having the formula R(OH)CH--R is hydrocarbyl or substituted hydrocarbyl, is...
US-5,239,651 Method of and apparatus for arbitration based on the availability of resources
A method and apparatus for arbitrating among multiple requested data transfers based on the availability of transfer resources. A request for the control of a...
US-5,237,680 Method for incremental rename propagation between hierarchical file name spaces
A rename tracking and propagation facility propagates renames, executed in multiple isolated file system name spaces (FSNS), to a remote FSNS on a per object...
US-5,237,650 Method and apparatus for spatial anti-aliased depth cueing
A computer graphics system comprising apparatus for drawing quadrilateral images on an output display when furnished the vertices of the quadrilateral, apparatus...
US-5,235,539 Method and apparatus for generating carry out signals
A circuit for determining the carry out from the addition of two numbers independent of the determination of the sum of the two numbers including apparatus for...
US-5,233,650 Telephone support device
A telephone handset support device comprising a resilient headband provided with earpads for engaging the ears of the use, and a clip detachably attached to one...
US-D337,769 Cassette tape winder
US-5,230,063 Method and apparatus for selecting button function and retaining selected optics on a display
The invention is an object-oriented graphic interface for use in computer controlled display systems. A central processing unit (CPU) is provided and is coupled...
US-5,228,955 High strength coke oven wall having gas flues therein
An improved coke oven wall constructed for refractory brick and having generally vertically extending gas flues formed therein employs different shaped brick to...
US-D337,452 Compact disc storage rack
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