Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Cathode ray
Patent
1986-07-09
1988-04-19
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Cathode ray
324111, 324112, 340722, 364487, G01R 1332, G01R 1326, G09G 106
Patent
active
047392533
ABSTRACT:
A system for transmitting traces of an oscilloscope (16) to a remote locan. A transmitter circuit (18) digitizes and transmits the traces to the remote location. A receiver circuit (24) at the remote location receives the transmitted signals and delivers these signals to a destination oscilloscope (26). At the transmitting location, the vertical output signal of the oscilloscope is amplified and fed to an analog-to-digital converter. The digitized output signal of the converter and the oscilloscope's timebase gate signal are stored in a memory circuit and subsequently transmitted to the remote location via a first modem (20). At the remote location, the receiver circuit (24) comprises a universal asynchronous receiver transmitter (UART) interfacing with a second modem (22), a memory circuit for storing the transmitted signals, and associated circuitry for restoring the oscilloscope signal's amplitude. The timebase gate signal of the transmitting oscilloscope (16) is used to trigger the destination oscilloscope (FIG. 1).
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Everhart Robert W.
Huck Charles T.
American Telephone and Telegraph Company, AT&T Technologies, Inc
Karlsen Ernest F.
Marshall Dwight A.
Nguyen Vinh P.
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