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Searching: cpu processor





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Patent # Description
US-4,456,952 Data processing system having redundant control processors for fault detection
A data processing system including a control store for storing a microprogram constituted by a number of microinstructions, first and second control processors...
US-4,451,916 Repeatered, multi-channel fiber optic communication network having fault isolation system
A repeatered, multichannel fiber optic communication network includes a plurality of full duplex fiber optic channels and one or more auxiliary channels. In...
US-4,450,524 Single chip microcomputer with external decoder and memory and internal logic for disabling the ROM and...
A data processor system having a total memory capacity, an integrated circuit chip having thereon a central processing unit (CPU), a ROM, a RAM, a first decoder...
US-4,449,195 Digital fluorographic processor control
A method of controlling a digital video processor in a digital fluorography system wherein the electronic components of the processor are variously configured to...
US-4,445,176 Block transfers of information in data processing networks
Secondary storage subsystems exchange messages and data with host data processing systems and also forward messages between host systems. Host systems thereby...
US-4,424,563 Data processor including a multiple word processing method and device
An initialization routine provides to a CPU an instruction to be executed and multiple words of input data to be processed by the instruction. The CPU stores the...
US-4,403,282 Data processing system using a high speed data channel for providing direct memory access for block data transfers
A data processing system having a central processor unit (CPU) and a memory and further including a high speed, or "burst multiplexer", channel for permitting...
US-4,400,772 Method and apparatus for direct memory access in a data processing system
The method and apparatus in a microprocessor-based data processing system which allows direct access to main memory associated with a central processing unit...
US-4,399,506 Store-in-cache processor means for clearing main storage
Inhibit means prevents a store-in-cache (SIC) from requesting or receiving any line fetch from MS when a clear line (CL) command is issued by a CPU to main...
US-4,394,731 Cache storage line shareability control for a multiprocessor system
A multiprocessor (MP) system is described having central processors (CPs) in which each CP has a store-in-cache (SIC) with an associated processor directory...
US-4,390,943 Interface apparatus for data transfer through an input/output multiplexer from plural CPU subsystems to...
In a data processing unit, apparatus permits more than one central processing unit and associated control interface unit to transfer data to an input/output...
US-4,385,351 Multiprocessor system with apparatus for propagating cache buffer invalidation signals around a circular loop
This data processing system includes a main memory which is shared by a plurality of central processor units (CPUs) which are also coupled in cascade in a closed...
US-4,383,297 Data processing system including internal register addressing arrangements
In a multi-processor system of the type in which each processor is provided with its own unique bus which has an addressing system organized in such a manner...
US-4,383,295 Data processing system having data entry backspace character apparatus
In a data processing system which includes one or more common buses to which a plurality of input/output controllers are connected for the transfer of data,...
US-4,379,950 Distributed control memory network
A computer-controlled distributed communication system in which there is a system controller and a plurality of group controllers all interchanging information...
US-4,366,477 Dot matrix type running display panel for use in electronic calculators or the like
An electronic calculator with a dot matrix display panel capable of displaying characters, symbols or other patterns is implemented with a central processor unit...
US-4,365,294 Modular terminal system using a common bus
A modular terminal system (10) employs a CPU module (22) connected via a bus (20) to at least one slave module (24, 26, 28, 32, 36). An error condition is...
US-4,360,870 Programmable I/O device identification
A computer system having a CPU connected to I/O devices via a channel sets addresses into the I/O devices by the CPU. The I/O devices, for purposes of control,...
US-4,355,361 Data processor apparatus for multitariff meter
The meter includes a kilowatthour register which is continuously engaged as well as at least one special register (kilowatthour or demand) which is selectively...
US-4,354,232 Cache memory command buffer circuit
In a computer system, with a system interface unit (SIU) for controlling data transfers between a lower speed main memory and either a central processor unit...
US-4,352,157 Data-processing apparatus having improved interrupt handling processor
The data-processing apparatus of this invention comprises a central processing unit (hereinafter referred to as the "CPU"), and a plurality of a groups of memory...
US-4,349,704 Digital multifrequency signal generator
Multifrequency (FIGS. 2 and 4) signals are generated by employing a microcomputer system (500) in conjunction with a digital-to-analog converter (506) and filter...
US-4,342,095 Computer terminal
A computer terminal is disclosed which may advantageously be employed as a video display terminal having editing capabilities. The terminal is a processor driven...
US-4,339,794 Method and system for controlling input/output in process control
Novel method and system for controlling input/output in a process control wherein state signals of object processes to be controlled are applied to a CPU via a...
US-4,327,408 Controller device with diagnostic capability for use in interfacing a central processing unit with a peripheral...
A controller for interfacing a central processor unit (CPU) to a peripheral storage device which can be tested for proper operation independent of the peripheral...
US-4,323,964 CPU Employing micro programmable control for use in a data processing system
A microprogrammed processor having a versatile hardware and data path configuration in which control signals for data paths, the ALU function, the shifter and...
US-4,322,795 Cache memory utilizing selective clearing and least recently used updating
An apparatus is disclosed herein for providing faster memory access for a CPU by utilizing a least recently used scheme for selecting a storage location in which...
US-4,320,450 Protection apparatus for multiple processor systems
In a data protection apparatus for a multiple CPU system having a common or multiported bulk memory, an interface structure is associated with each of the CPU's....
US-4,318,174 Multi-processor system employing job-swapping between different priority processors
A multi-processor system wherein a plurality of priority-designated central processor units (CPUs) are interconnected by a program control memory which operates...
US-4,313,180 Refresh system for a dynamic memory
An electronic apparatus comprises a central processor unit (CPU) for controlling the operation of the electronic apparatus, and a dynamic random access memory...
US-4,310,889 Apparatus for electronically controlling internal combustion engine
An apparatus for electronically controlling an internal combustion engine of automobiles, in which a processor comprising a CPU, a RAM and a ROM is determined to...
US-4,310,879 Parallel processor having central processor memory extension
An array processor which is an integral part of a central processing unit (CPU) has a local memory which is part of main memory address space. Furthermore, the...
US-4,302,785 Method and apparatus for controlling tape recorder
Control apparatus for a tape recorder includes a Central Processor Unit (CPU) and a Control Panel having data entry switches, mode selection switches, speed...
US-4,302,784 Method and apparatus for controlling tape recorder
Control apparatus for a tape recorder includes a Central Processor Unit (CPU) and a Control Panel having data entry switches, mode selection switches, speed...
US-4,301,503 Home computer and game apparatus
A home computer system provides a video processor for use with a television receiver. The video processor can selectively perform a variety of modifications to...
US-4,300,193 Data processing system having data multiplex control apparatus
In a data processing system which includes one or more common buses to which a plurality of input/output controllers are connected for the transfer of...
US-4,296,464 Process control system with local microprocessor control means
In a computer control system a central processor unit (CPU) is provided as a primary control center. A data bus interface controller is connected to interface...
US-4,293,915 Programmable electronic real-time load controller
A programmable electronic real-time load controller includes: a plurality of load control circuits, each being adapted to be interconnected with a load; a...
US-4,293,907 Data processing apparatus having op-code extension register
A Central Processing Unit (CPU) includes a hardware op-code extending register (OER) for storing a code for programmable selection of optional CPU features which...
US-4,292,668 Data processing system having data multiplex control bus cycle
In a data processing system which includes one or more common buses to which a plurality of input/output controllers are connected for the transfer of data,...
US-4,277,651 Telephone dialer
The present invention provides both repertory and abbreviated dialing functions in a telephone dialer that facilitates telephone dialing operation. In...
US-4,276,594 Digital computer with multi-processor capability utilizing intelligent composite memory and input/output...
A digital computer with the capability of incorporating multiple central processing units (CPU's), utilizes an address and data bus between each central...
US-4,271,481 Micro computerized electronic postage meter system
An advanced electronic postage meter system is described, which is built around a micro computer set. The micro computer set is of LSI design, and comprises a...
US-4,268,901 Variable configuration accounting machine with automatic identification of the number and type of connected...
A variable configuration accounting machine having a central processor unit (CPU) of an LSI (Large Scale Integration) microprocessor type and a plurality of...
US-4,258,419 Data processing apparatus providing variable operand width operation
A Central Processing Unit provides programmable variation of the operand width for processor operations. The operands are formed with one or more N-bit segments....
US-4,257,110 Recognition memory with multiwrite and masking
An improved associative memory employs plural separately addressable memories, e.g., random access memories (RAM's), which may be written into, or read from in...
US-4,232,365 Apparatus for determining the next address of a requested block in interlaced rotating memories
Apparatus for determining the next data word of a requested block of data words in interlaced rotating mass memories to enable transfer of the requested block...
US-4,229,801 Floating point processor having concurrent exponent/mantissa operation
A Floating Point Processor or Floating Point Unit (FPU) with capability for performing exponent/sign-related calculations concurrently with mantissa-related...
US-4,228,501 Data transfer technique for use with peripheral storage devices
Data processing apparatus wherein circuitry for data transfer between a central processor unit (CPU) and a peripheral storage unit, such as a hard disk storage...
US-4,225,934 Multifunctional arithmetic and logic unit in semiconductor integrated circuit
A computing system includes a central processor unit (CPU) in combination with external memory units. The CPU includes an arithmetic logic (ALU), an instruction...
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