1
David L Houseman: Digital data processing system having object-based logical memory addressing and self-structuring modular memory. Data General Corporation, Gerald Cechony, Joel Wall, April 23, 1985: US04513368 (68 worldwide citation)

A digital computer system in which the memory is structured into objects, which are blocks of storage of arbitrary length, in which the data items are accessed by specifying the desired object and the desired data item's offset into that object. The memory controls accommodate any number of memory a ...


2
Charles B Johnson, Howard D Gardener: PCM channel multiplexer/demultiplexer. Data General, Gerald Cechony, February 17, 1987: US04644535 (52 worldwide citation)

Apparatus 117 interfaces system multiplexing/demultiplexing (MUX/DMUX) station circuitry 113, which exchanges pulse code modulated (PCM) signal samples of voice, data and control information in an interleaved port group format with a plurality of the system user ports 120 in each of a succession of ...


3
Paul W Latham II: Charge pump for use in a phase-locked loop. Data General Corporation, Gerald Cechony, January 13, 1987: US04636748 (47 worldwide citation)

An improved charge pump for use in a phase-locked loop is disclosed in which there is only one current source, and in which all switching components pass current in the same direction. The charge pump may thus be constructed entirely of NPN transistors, which makes it possible to embody it in a sing ...


4
David L Houseman, Paul Bowden: Content-addressable memory module with associative clear. Data General, Gerald Cechony, Joel Wall, December 17, 1985: US04559618 (35 worldwide citation)

A content-addressable memory module which performs an associative clear operation in response to a clear signal provided on a clear line. The associative clear operation simultaneously clears all registers in the content-addressable memory module whose contents match bits in a pattern input to the c ...


5
Michael L Ziegler, Peter G Marshall, David L Whipple: Universal memory. Data General Corporation, Gerald Cechony, Simon Cohen, April 23, 1985: US04513372 (34 worldwide citation)

A memory device is disclosed that operates internally substantially independent of the timing of signals from its associated computer. That is, the timing controls for multiplexing the row and column address into the memory chips as well as the enabling signal for writing information into the chips ...


6
John C Bellamy: Programmable feature card. Data General, Gerald Cechony, Joel Wall, Leonard Suchyta, December 2, 1986: US04627046 (33 worldwide citation)

Programmable feature card circuitry includes: a signal processor with parallel input/output (I/O) data ports and responsive to command of the PBX call processor, signal memory, and a signal interface for converting the PBX signal format to a processor compatible format; the signal memory including p ...


7
James M Guyer, David I Epstein, David L Keating: Data processing system with unique microcode control. Data General, Gerald Cechony, Joel Wall, May 27, 1986: US04591972 (31 worldwide citation)

A data processing system having separate kernel, vertical and horizontal microcode, separate loading of vertical microcode and a permanently resident kernel microcode, and a soft console with dual levels of capability. The system includes a processor having dual ALC and microcode processors, and an ...


8
James M Guyer, David I Epstein, David L Keating, Walker Anderson, James E Veres, Harold R Kimmens: Method and apparatus for enhancing the operation of a data processing system. Data General, Gerald Cechony, Joel Wall, June 24, 1986: US04597041 (21 worldwide citation)

A data processing system having separate kernel, vertical and horizontal microcode, separate loading of vertical microcode and a permanently resident kernel microcode, and a soft console with dual levels of capability. The system includes a processor having dual ALC and microcode processors, and an ...


9
Mark D Hummel, James M Guyer, David I Epstein, David L Keating, Steven J Wallach: Digital data processing system having dual-purpose scratchpad and address translation memory. Data General, Gerald Cechony, Joel Wall, February 4, 1986: US04569018 (20 worldwide citation)

A data processing uses instructions which may refer to operands in main memory by either physical or logical addresses. The central processor has an internal memory organized as two portions. The first portion provides a scratchpad memory function for the central processor and the second portion is ...


10
Robert W Beauchamp, George P Springer: Floating-point unit constructed of identical modules. Data General, Gerald Cechony, Joel Wall, September 16, 1986: US04612628 (15 worldwide citation)

A floating-point unit constructed of at least two identical modules. Each module contains registers for storing floating-point data, a sign and exponent processing unit for processing the sign and exponent portions of floating-point values, and a mantissa processing unit for processing the mantissa ...