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Searching: cpu processor





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Patent # Description
US-4,985,829 Cache hierarchy design for use in a memory management unit
A cache hierarchy to be managed by a memory management unit (MMU) combines the advantages of logical and virtual address caches by providing a cache hierarchy...
US-4,982,402 Method and apparatus for detecting and correcting errors in a pipelined computer system
In a multiprocessor system, an error occurring in any one of the CPUs may have an impact upon the operation of the remaining CPUs, and therefore these errors...
US-4,979,131 Printer apparatus
A printer apparatus is provided with a frame memory for storing a printing pattern, a printing head driven in accordance with the printing pattern stored in the...
US-4,975,838 Duplex data processing system with programmable bus configuration
A duplex data processing system includes two processors each provided with a bus connecting unit which disconnects the associated CPU bus from the cross...
US-4,975,832 Microcomputer system with dual DMA mode transmissions
A microcomputer interfaced with an input/output (I/O) device comprises a central processor unit (CPU), a memory, and a direct memory access (DMA) controller,...
US-4,965,717 Multiple processor system having shared memory with private-write capability
A computer system in a fault-tolerant configuration employs multiple identical CPUs executing the same instruction stream, with multiple, identical memory...
US-4,962,459 System for accounting for postage expended by a postage meter having data security during printing
A system for accounting for postage expended by a postage meter. The system includes a keyboard and display for entry of commands and postal information, a...
US-4,961,161 Arithmetic processor performing mask and trap operations for exceptions
A floating-point arithmetic processor performs a MASK or TRAP operation in response to occurrence of an exception. This processor includes a first flag which is...
US-4,959,810 Universal remote control device
The universal remote control system comprises data processor, input device including a keyboard and a keyboard circuit connected to the data processor, signal...
US-4,959,771 Write buffer for a digital processing system
The invention comprises a write buffer system which provides residence time information that increases the merge potential and enhances the write collapse...
US-4,958,291 System for accounting for postage expended by a postage meter having security during editing of accounts
A system for accounting for postage expended by a postage meter. The system includes a keyboard and display for entry of commands and postal information, a...
US-4,956,804 Data processing system with memories access time counting and information processor wait signal generating...
An electronic equipment has a central processing unit (CPU), a first memory accessable by the CPU, a first setting circuit for holding a signal representative of...
US-4,954,949 Universal connector device for bus networks in host computer/co-processor computer system
A connector device for use in communication of data between the central processing unit (CPU) bus of a host computer system and the CPU bus of a co-processor...
US-4,951,248 Self configuring memory system
A self configuring memory for a computer system. Memory is distributed between a central processor unit (CPU) memory and expansion memory boards that are...
US-4,951,195 Condition code graph analysis for simulating a CPU processor
The system and method of this invention simulates the flow of control of an application program targeted for a specific instruction set of a specific processor...
US-4,939,641 Multi-processor system with cache memories
A system is described wherein a CPU, a main memory means and a bus means are provided. Cache memory means is employed to couple the CPU to the bus means and is...
US-4,928,250 System for deriving radiation images
In an algorithm for deriving radiation images, where view independent radiation calculations are precomputed so that they do not need to be repeated for every...
US-4,928,238 Scalar data arithmetic control system for vector arithmetic processor
A vector arithmetic processor includes a register file for storing an operand of an instruction supplied from a CPU, at least one pointer register for storing...
US-4,926,871 Apparatus and method for non-invasively and automatically measuring the volume of urine in a human bladder
An apparatus/method for measuring the volume of urine in a human bladder, including a scanhead and transceiver for transmitting a plurality of ultrasound signals...
US-4,922,526 Automated access facilities for use with key telephone systems
A call processor (32) for intercepting incoming calls to a key telephone system (10) and returning a message to a calling party. A digital message storage unit...
US-4,920,481 Emulation with display update trapping
An emulating data processor includes a host system and an emulating processor with outputs to and inputs from the host system. The emulating processor executes...
US-4,914,570 Process distribution and sharing system for multiple processor computer system
A multiple processor (CPU) computer system, each CPU having a separate, local, random access memory means to which it has direct access. An interprocessor bus...
US-4,903,233 Word processor having capability of continuously entering documents into a column or a block of an editing system
An editing system for use in a word processor includes a letter code producer for sequentially producing letter codes, a document memory having a plurality of...
US-4,901,235 Data processing system having unique multilevel microcode architecture
A data processing system which includes a central processor unit which has an arithmetic logic unit (ALU) for performing fixed point arithmetic operations and a...
US-4,901,230 Computer vector multiprocessing control with multiple access memory and priority conflict resolution method
A multiprocessing system and method for multiprocessing is disclosed. A pair of processors are provided, and each are connected to a central memory through a...
US-4,899,275 Cache-MMU system
A cache and memory management system architecture and associated protocol is disclosed. The cache and memory management system is comprised of a set associative...
US-4,897,865 Telephone data collection device
A telephone data terminal and data collection network for communicating data over a telephone system using DTMF tone dialing. A telephone data terminal (10)...
US-4,894,769 Increased bandwith for multi-processor access of a common resource
This circuitry permits equal access to a shared resource by a number of central processing units (CPUs). In a multiple CPU arrangement, common resource...
US-4,891,787 Parallel processing system with processor array having SIMD/MIMD instruction processing
A highly-parallel processing system in which a number of processing elements are interconnected by a network, and are also connected to a system bus and are...
US-4,891,768 Raster image processor
Raster image processor for filling a page-size raster image memory and for the conversion of the data stored in the raster image memory into a serial pixel-bit...
US-4,885,679 Secure commodity bus
A secure system includes a secure central processor unit, an input/output emulator, a number of commodity controller boards and a number of commodity memory...
US-4,879,642 Servo loop processor in association with a central processing unit for closed loop control of a servo system
A servo loop processor (2) is a dedicated controller for use with a main central processing unit (4) (CPU), through an appropriate interface (8,10) whereby...
US-4,873,626 Parallel processing system with processor array having memory system included in system memory
A highly-parallel processing system in which a number of processing elements are interconnected by a network, and are also connected to a system bus and are...
US-4,870,564 Distributed input/output system
The invention disclosed provides an intelligent input/output system for a programmable controller and includes a plurality of input/output (I/O) modules, each of...
US-4,866,600 Computer video control system
Video control circuitry for controlling the video format presented to the cathode ray tube or screen and capable of providing a combination of character...
US-4,864,289 Video display control system for animation pattern image
A video display control system displays a multicolor animation pattern on a screen of a video display unit. The video display control system is mainly ...
US-4,862,352 Data processor having pulse width encoded status output signal
A data processor is provided with status logic for monitoring the instruction processing activity therein, and for providing a pulse width encoded status output...
US-4,852,100 Error detection and correction scheme for main storage unit
The present invention provides an apparatus for reporting errors in data stored in a memory apparatus of a data processor, comprising: first means for storing...
US-4,851,992 Register/saving/restoring system for saving and restoring data in a register of a slave processor
A register saving/restoring system for use in a data processing system is constructed of a CPU and at least one slave processors. The registers of the slave...
US-4,850,012 Automated access facilities for use with key telephone systems
A call processor (32) for intercepting incoming calls to a key telephone system (10) and returning a message to a calling party. A digital message storage unit...
US-4,847,751 Multi-task execution control system
In a microcomputer system, having independently programmed tasks and a master control processing unit (CPU), tasks can be switched independent of the master CPU...
US-4,837,688 Multi-channel shared resource processor
An external dispatcher distributes prioritize tasks to a plurality of processor channels. The processor channels then contend for one of two partitions for the...
US-4,835,534 Monitoring a conflict detector for traffic-lights
A monitoring system for energization of traffic lamps (L 1 . . . L 8), with energy supplied from a common voltage source. Protection is provided so that...
US-4,831,572 Polynomial vector arithmetic operation control system
A system for controlling polynomial arithmetic operations of a vector arithmetic processor capable of executing the arithmetic operations independently of a...
US-4,828,257 Electronically controlled exercise system
A system and method for providing an exercise program at a desired pace throughout each repetition and which applies resistance against a user's efforts based...
US-4,823,262 Apparatus for dynamically switching the clock source of a data processing system
A data processing system includes a first and a second central system wherein the central processing unit (CPU) of the first central system is operatively...
US-4,821,229 Dual operating speed switchover arrangement for CPU
A user selectable switch arrangement in combination with logic circuitry allows the timing of a central processor unit (CPU) to be switched between two clock...
US-4,821,179 Communication system configuration detection apparatus and method
A data processing system includes a processor unit (CPU) connected over a CPU bus to a plurality of memory components, but is not connected to any input-output...
US-4,821,178 Internal performance monitoring by event sampling
The disclosure provides event-controlled operations for an internal hardware/softward monitor for a processor in a data processing system. It embeds and...
US-4,812,828 Video display processor
A video display processor (VDP) is connectable to an input control device such as a light pen and a mouse. The VDP comprises a counter circuit which is composed...
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