1
Robert P Colwell, John O Donnell, David B Papworth, Paul K Rodman: Instruction storage and cache miss recovery in a high speed multiprocessing parallel processing apparatus. Digital Equipment Corporation, Denis G Maloney, Barry Young, Ron Myrick, January 12, 1993: US05179680 (107 worldwide citation)

A method and apparatus for storing an instruction word in a compacted form on a storage media, the instruction word having a plurality of instruction fields, features associating with each instruction word, a mask word having a length in bits at least equal to the number of instruction fields in the ...


2
William F Bruckert, Thomas D Bissett, Dennis Mazur, John Munzer: Fault tolerant, synchronized twin computer system with error checking of I/O communication. Digital Equipment Corporation, Albert Cefalo, Barry Young, Ronald C Hudgens, October 19, 1993: US05255367 (83 worldwide citation)

A dual processor computer system includes a first processing system having a central processing unit which executes a series of data processing instructions, a data bus system for transferring data to and from the first central processing unit, a memory unit coupled to the first central processing u ...


3
Alexander Metsler: Method and apparatus for a PCB and I/O integrated electromagnetic containment. Digital Equipment Corporation, Dirk Brinkman, Barry Young, Ronald E Myrick, November 17, 1992: US05165055 (80 worldwide citation)

An integrated electromagnetic and radio frequency interference (EMI/RFI) shielding apparatus contains EMI/RFI produced by a computer system. In particular the apparatus isolates input/output (I/O) connectors of the computer system from EMI/RFI produced by noisy components of the system. The shieldin ...


4
Victor M Samarov, Joseph A DeCarolis, Raoji Patel, Gerald J Piche, Glenn R Skutt, Steve W Norris: Coplanar heatsink and electronics assembly. Albert P Cefalo, Ronald C Hudgens, Barry Young, April 19, 1994: US05305185 (80 worldwide citation)

There is provided a method and materials for cooling the power train components, such as transformers, rectifiers, chokes, and the like, of an integrated on-board power supply IOP) using a single heatsink. Spacers are positioned between the power train components and a substrate, the substrate for m ...


5
Radia J Perlman, George A Harvey: Method and apparatus for distance vector routing on datagram point-to-point links. Digital Equipment Corporation, Denis G Maloney, Barry Young, Albert Cefalo, September 7, 1993: US05243592 (68 worldwide citation)

A technique for distributing updated distance vectors used in routers, which are connected by point-to-point links having datagram service. Distance vectors are used by routers to route messages over the most desirable paths, but must be continually modified as a result of update messages passed bet ...


6
Colyn Case, Kim Meinerth, John Irwin, Blaise Fanning: Address method for computer graphics system. Digital Equipment Corporation, Albert Cefalo, Barry Young, Denis Maloney, June 14, 1994: US05321810 (64 worldwide citation)

In a computer graphics system, an address generator processes physical and virtual addresses using a common command set. The address generator formulates addresses as a function of distance from the origin of the desired destination area in a destination memory to the requested position in the desti ...


7
Douglas E Sanders, Michael A Callander: Two-level protocol for multi-component bus ownership, and implementation in a multi-processor cache write back protocol. Digital Equipment Corporation, Denis G Maloney, Barry Young, Ronald Myrick, March 9, 1993: US05193163 (47 worldwide citation)

A method and apparatus for monitoring transactions on a system bus for invalidate requests, including a queue for storing the invalidate requests which is divided into two parts. The first part of the queue is contained within a cache controller to ensure that an invalidate request is immediately av ...


8
William F Bruckert, Thomas D Bissett: Dual rail processors with error checking on I/O reads. Digital Equipment Corporation, Denis G Maloney, Barry Young, Albert Cefalo, September 28, 1993: US05249187 (40 worldwide citation)

A dual processor data processing system having interprocessor error checking includes a first central processing unit executing a series of instructions. A second central processing unit executes the same series of instructions independently of and in synchronism with the first central processing un ...


9
James A Daly: Fault detector for a plurality of batteries in battery backup systems. Digital Equipment Corporation, Denis G Maloney, Barry Young, Albert Cefalo, October 19, 1993: US05254930 (39 worldwide citation)

According to the invention a battery charger for charging a plurality of batteries includes a voltage supply connected by a pair of switches to a power converter including a transformer having a primary winding and a plurality of secondary windings. Each secondary winding is coupled to a battery. Vo ...


10
Thomas D Bissett, William Bruckert, Ajai Thirumalai, Jay Amirmokri: Protocol for transfer of DMA data. Digital Equipment Corporation, Denis Maloney, Barry Young, Ronald Myrick, February 9, 1993: US05185877 (38 worldwide citation)

A process for transferring data via DMA between a system resource and a controller via switching logic. During a setup write transaction, the switching logic is set up to enable DMA data to be transferred between a particular system memory and a selected system resource. The setup write transaction ...