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Robert F Hartmann, Yiu Fai Chan, Robert Frankovich, Jung Hsing Ou: Programmable logic array device using EPROM technology. Altera Corporation, Hamrick Hoffman Guillot & Kazubowski, September 2, 1986: US04609986 (334 worldwide citation)

An electrically programmable, eraseable and reprogrammable, monolithic integrated circuit logic array device is disclosed. The device includes a plurality of three types of logic array macrocells, each including an AND array matrix of EPROM transistors configured to form a plurality of "product term ...


2
Sau Ching Wong, Hock Chuen So, Stanley J Kopec Jr, Robert F Hartmann: Programmable logic device with array blocks connected via programmable interconnect. Altera Corporation, Robert R Jackson, October 3, 1989: US04871930 (308 worldwide citation)

A programmable logic device having a relatively small number of programmable product terms ("P-terms") feeding each fixed combinatorial logic device, and additional "expander" programmable P-terms which do not directly feed a fixed device. Relatively simple logic functions can be performed by suitab ...


3
Robert F Hartmann, Sau Ching Wong, Yiu Fai Chan, Jung Hsing Ou: Programmable logic array device using EPROM technology. Altera Corporation, Hamrick Hoffman Guillot & Kazubowski, October 14, 1986: US04617479 (295 worldwide citation)

The programmable logic array device basically comprises a programmable AND array (FIGS. 5, 11) having a plurality of memory cells (30, 31) arranged in addressable rows (40-45) and columns (32-38) and which can be individually programmed to contain logic data; an input circuit (FIG. 9) for receiving ...


4
Sau Ching Wong, Hock Chuen So, Stanley J Kopec Jr, Robert F Hartmann: Programmable logic device with array blocks with programmable clocking. Altera Corporation, Robert R Jackson, March 27, 1990: US04912342 (221 worldwide citation)

A programmable logic device having a relatively small number of programmable product terms ("P-terms") feeding each fixed combinatorial logic device, and additional "expander" programmable P-terms which do not directly feed a fixed device. Relatively simple logic functions can be performed by suitab ...


5
Robert F Hartmann, Yiu Fai Chan, Robert J Frankovich, Jung Hsing Ou, Hock C So, Sau Ching Wong: Programmable macrocell using eprom or eeprom transistors for architecture control in programmable logic circuits. Altera Corporation, Claude Hamrick, December 15, 1987: US04713792 (202 worldwide citation)

A programmable macrocell 28 for use in an integrated circuit device including an electronic circuit 32 responsive to control signals and operative to perform particular operations selected by the control signals on input data signals and to develop commensurate output signals, and one or more archit ...


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Stanley J Kopec Jr, Yiu Fai Chan, Robert F Hartmann: Programmable interface for computer system peripheral circuit card. Altera Corporation, Jeffrey H Ingerman, May 5, 1992: US05111423 (157 worldwide citation)

A programmable interface for a peripheral circuit card is provided. The card is intended for use with a particular computer bus architecture, and the interface can be customized by a user for a particular card design. Instead of designing a custom interface chip, the designer can program one or more ...


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Robert F Hartmann, Sau Ching Wong, Yiu Fai Chan, Jung Hsing Ou: Programmable logic array device using EPROM technology. Altera Corporation, Rosenblum Parish & Bacigalupi, September 27, 1988: US04774421 (154 worldwide citation)

A programmable logic array device basically comprising a programmable AND gate array (FIGS. 5, 11) having addressable rows (40-45) and columns (32-38) or memory cells (30, 31) which can be individually programmed to represent logic data; an input signal receiving circuit (FIG. 9) for developing a co ...


8
Guillermo S Ferla, Walter P Haimberger, Robert F Hartmann: Dynamic focusing system for use with discontinuous medium. Polaroid Corporation, Francis J Caufield, October 27, 1992: US05159352 (13 worldwide citation)

A printing system employs a rotating drum for carrying a photosensitive printing medium in the form of a discontinuous sheet, there being a clamp carried by the drum and rotating therewith for holding ends of the sheet to secure the sheet to the drum. The system includes a print head having a laser ...


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Robert F Hartmann, Patrick J Hegarty, Timothy R Crawford, Thomas H Campbell: Scanning system for film recorder. Polaroid Corporation, May 15, 2001: US06232904 (2 worldwide citation)

A scanning system for a film recorder utilizes multiple digital-to-analog converters (DACs) to produce a linear output for a vertical deflection circuit which drives a vertical yoke circuit for controlling a CRT beam in a film recorder. The system contains a coarse DAC, a fine DAC, and a delta DAC w ...


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