Appeal No. 2000-0968 Page 2
Application No. 08/629,484
analyzers incorporating such oscilloscopes as display devices
(specification, page 1). According to Appellants, conventional
engine analyzers may be operated in both ignition and lab scope
modes to provide multiple display traces utilizing either engine
sweeps or fixed time sweeps on their horizontal scale
(specification, pages 1 & 2). The analyzer, in either mode, may
further display the results in live mode, by using data obtained
from engine probes, or in freeze mode, which uses data stored in
a memory. Conventional analyzers have little room for
manipulating or reconfiguring the waveform data displayed on the
screen in the freeze mode (specification, pages 2 & 3). In
freeze mode, Appellants’ invention stores certain parameters of
the frozen screen display format as well as the initial waveform
signals and display settings for each trace (specification, pages
13-15). Thus, a user can reconfigure the frozen screen display
format by altering at least one of the different display
parameters such as the number of traces and the specific signal
displayed on each trace (specification, pages 15-17 & 30).
Representative independent claim 1 is reproduced as follows:
1. Apparatus for monitoring analog input waveforms
comprising:
waveform acquisition circuitry including signal pickup
leads adapted to be coupled to an associated source for
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Last modified: November 3, 2007