1
Wayne L Griffin, Eric D Fuhs, Robert A Kohtz, Peter A Ojeda: Heat-exchange panel for portable computer. Zenith Data Systems Corporation, December 25, 1990: US04980848 (56 worldwide citation)

A portable computer with a base and keyboard with a pivotal lid assembly containing both a visual display panel and a parallel mounted central processing unit circuit board, as well as coplanar memory and visual display driving circuitry. The lid assembly is provided with front and rear clam shell c ...


2
David T DeRoo, Mark D Nicol, David J DeLisle, Saifuddin Fakhruddin, Lloyd W Gauthier, Robert A Kohtz: Protected address range in an electrically erasable programmable read only memory. Packard Bell NEC, Fitch Even Tabin & Flannery, December 28, 1999: US06009495 (22 worldwide citation)

An interface between the host CPU and the programmably memory, providing an address, data and read/write control signals to create a non-volatile sector within the programmable memory. In an embodiment when the system reset is de-asserted immediately after power-on, the size of the protected EEPROM ...


3
Robert R Turnbull, David J DeLisle, Robert A Kohtz: Method and control circuit for measuring the temperature of an integrated circuit. Zenith Data Systems Corporation, Fitch Even Tabin & Flannery, March 12, 1996: US05498971 (22 worldwide citation)

A method and circuit for relatively accurately measuring the die temperature of an IC, such as a microprocessor, by sensing one or more internal circuit elements which have an electrical parameter which varies as a function of temperature, such as an input protection diode. By sensing the one or mor ...


4
David J DeLisle, Saifee Fakhruddin, Lloyd Gauthier, Robert A Kohtz: Hardware based interface for mode switching to access memory above one megabyte. Zenith Data Systems Corporation, Fitch Even Tabin & Flannery, February 1, 1994: US05283889 (17 worldwide citation)

A relatively fast system control processor, such as an Intel 8051, is substituted for an Intel 8042 microprocessor in a PC/AT type compatible personal computer. In one embodiment of the invention, a System Control Processor Interface (SCPI) is provided between the central processing unit (CPU) and t ...


5
Steve L Belt, Robert A Kohtz: Memory usage system. Zenith Data Systems Corporation, Richard A Cederoth, August 20, 1991: US05042003 (17 worldwide citation)

An improved means and method for expanded memory system access and control is disclosed. A logic array in the expanded memory control circuitry which accesses and controls up to two separate expansion boards through the use of static random access memory as register circuits and octal buffers for ad ...


6
David T DeRoo, Mark D Nicol, David J DeLisle, Michael P Krau, Saifuddin Fakhruddin, Lloyd W Gauthier, Robert A Kohtz: Method for warm boot from reset. Packard Bell NEC, Fitch Even Tabin & Flannery, February 16, 1999: US05872967 (16 worldwide citation)

A computer system employs a process on warm boot which obviates the need to copy code in non-volatile memory to volatile memory; a normal function in a warm boot process. The computer system checks a warm boot flag which indicates that the code was previously copied on cold boot. By avoiding copying ...


7
David T DeRoo, Mark D Nicol, David J DeLisle, Richard D Ball, Saifuddin Fakhruddin, Lloyd W Gauthier, Robert A Kohtz, Jimmy D Smith: Multiprocessor system for enabling shared access to a memory. NEC Corporation, Katten Muchin Zavis, December 12, 2000: US06161162 (15 worldwide citation)

A multiprocessing computer system and method providing multiplexed address and data paths from multiple CPUs to a single storage device. These paths are controlled by an arbitration circuit which allows one CPU to always have the highest priority. The primary CPU may or may not be the highest priori ...


8
Jim T Ray, Robert A Kohtz, Michael Dant, Jeffrey M Hunt: Methods, apparatuses and articles for automatic data collection devices, for example barcode readers, in cluttered environments. Intermec IP, Seed IP Law Group PLLC, July 1, 2008: US07392951 (14 worldwide citation)

A reader such as a barcode reader identifies at least one potential target such as a barcode symbol in its field-of-view, and projects or transmits an indicator toward or proximate the potential target containing information about the respective potential target. Such information may include which t ...


9
David T DeRoo, Mark D Nicol, David J DeLisle, Michael P Krau, Saifuddin Fakhruddin, Lloyd W Gauthier, Robert A Kohtz: Method to store privileged data within the primary CPU memory space. Packard Bell Nec, Fitch Even Tabin & Flannery, February 2, 1999: US05867655 (13 worldwide citation)

In the present invention, a single EEPROM is used to store firmware for the CPU, firmware for the SCP and the system password and other critical system data. Hardware protection is provided that prevents the CPU from accessing the portion of the EEPROM that contains the password or other critical sy ...


10
David T DeRoo, Mark D Nicol, David J DeLisle, Michael P Krau, Saifuddin Fakhruddin, Lloyd W Gauthier, Robert A Kohtz: Write inhibited registers. Packard Bell NEC, Fitch Even Tabin & Flannery, May 12, 1998: US05752063 (11 worldwide citation)

The invention provides a simple I/O port which can be used to support a variety of system functions such as a revision, configuration or identification register. This port is provided with a means to be programmable once, upon system power-up so that changes to the port contents are possible, but on ...