1
Matthew J Carden, Kim Lantz, Theresa L Reh, Anne Trytten, Yves Lubino: X.25 Wide area network channel status display. Hewlett Packard Company, Christopher J Byrne, December 12, 1989: US04887260 (38 worldwide citation)

Provided is a channel status display for an X.25 wide area network (WAN) DTE-DCE interface. The invention, designed for use with a protocol analyzer, monitors X.25 level-2 frame traffic on the DTE-DCE link and produces a dynamic channel-activity-data-structure based upon the level-2 frames. An impor ...


2
Jeffrey Tomberlin, Justin S Morrill Jr, James P Quan: Method and apparatus for a packet-switched network communications measurement matrix display. Hewlett Packard Company, Christopher J Byrne, October 4, 1988: US04775973 (24 worldwide citation)

Disclosed is a communications measurement matrix display for a protocol analyzer which is used to monitor traffic on a packet-switched network. The display allows the protocol analyser user to see, at a glance, a complete and accurate overview of communications between more than thirty-one nodes on ...


3
Stephen P Reames: Real-time end of packet signal generator. Hewlett Packard Company, Christopher J Byrne, Jon R Stark, July 14, 1987: US04680755 (22 worldwide citation)

Provided is a circuit for signalling the real-time end of a local area network packet as the packet is being pulled off a transmission medium and stored in memory. Storage of the packet is performed by a local area network coprocessor. The circuit monitors for the simultaneous occurrence of three co ...


4
Kevin M Bush: Oscilloscope-like user-interface for a logic analyzer. Hewlett Packard Co, Christopher J Byrne, November 20, 1990: US04972138 (17 worldwide citation)

Provided is an oscilloscope-like user-interface for a logic analyzer. The oscilloscope-like user-interface simplifies user control of the logic analyzer. The oscilloscope-like user-interface substitutes two oscilloscope-like controls (seconds-per-division and delay) for six logic analyzer controls ( ...


5
Patricia A Desautels: Method for determining the minimum number of acquisition sweeps to meet the risetime specifications of a digital oscilloscope. Hewlett Packard Company, Christopher J Byrne, Jon R Stark, January 12, 1988: US04719416 (17 worldwide citation)

Disclosed is a method for determining and executing the minimum number of sample acquisition-sweeps necessary to meet the risetime specifications of a digital oscilloscope which uses random repetitive sampling. The method of the present invention selects from two criteria to determine the required n ...


6
Dana L Johnson: Probability density histogram display. Hewlett Packard Company, Christopher J Byrne, March 26, 1991: US05003248 (17 worldwide citation)

Disclosed is a probability density histogram display for a digital oscilloscope which shows a probability density histogram display of an input signal waveform alongside the conventional voltage-versus-time time-domain display of the waveform. The histogram shows the relative frequency of occurrence ...


7
Kenneth E Posse, Kevin W Keirn, Michael A Lassner, George L Booth: Method for compressing data-vectors for a circuit board testing machine. Christopher J Byrne, March 19, 1991: US05001418 (15 worldwide citation)

Disclosed is method for compressing sequences of data-vectors, which sequences are to be used for testing circuit boards with the aid of a circuit board testing machine. The method involves an initial compression of the data-vector sequence followed by a so-called K-T transformation of the remaining ...


8
Kevin M Bush: Overlaid digital waveforms display. Hewlett Packard Company, Christopher J Byrne, December 11, 1990: US04977514 (11 worldwide citation)

Provided is a an overlaid digital signal waveform display for a logic analyzer. The present invention allows the logic analyzer user to overlay, that is superimpose, individual digital waveforms within a functional group of waveforms onto each other so that all the waveform transitions within the gr ...


9
Gordon A Jensen, Stephen P Reames, Jerry D Morris, Scott S Neal: Runt packet filter. Hewlett Packard Company, Christopher J Byrne, Jon R Stark, July 7, 1987: US04679193 (11 worldwide citation)

Provided is a circuit for preventing local area network packets shorter than a predetermined bit length from being received by a local area network coprocessor. Serial data which would otherwise be received by the coprocessor is delayed by a data-shift register of predetermined bit length. Simultane ...


10
Gordon A Jensen: Digital data filter for local area network. Hewlett Packard Company, Christopher J Byrne, June 28, 1988: US04754420 (9 worldwide citation)

An apparatus for digital filtering of sequences of data units, such as sequences of bytes. The apparatus uses parallel application of more than one filter and stores the results of applying all filters to a whole sequence of data units. The apparatus involves the interaction of random access memorie ...