Noise injection apparatus for printed circuit board
AssigneeRicoh Company, Ltd.
InventorsKenji Motohashi, Hideji Miyanishi, Kazumasa Aoki, Toshinobu Shoji, Kikuo Kazama
Life of this patent
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Abstract
A noise injection apparatus for injecting noise to a printed circuit board is disclosed that includes a signal generator that generates noise, a coaxial cable having one end connected to an output of the signal generator, and a probe that is connected to another end of the coaxial cable and is configured to convey the noise generated by the signal generator to a power supply and a ground pin of a device element of the printed circuit board via the coaxial cable.
Claims10
A noise injection apparatus that injects noise to a printed circuit board, the apparatus comprising:
- a signal generator that generates noise;
- a coaxial cable having one end connected to an output of the signal generator;
- and
- a probe that is connected to another end of the coaxial cable and is configured to convey the noise generated by the signal generator to a power supply and a ground pin of a device element of the printed circuit board via the coaxial cable, wherein the probe is a semi-rigid cable that includes an SMA connector.
A noise injection apparatus that injects noise to a printed circuit board, the apparatus comprising:
- a signal generator that generates noise;
- a coaxial cable having one end connected to the signal generator;
- and
- an impedance matching unit that is connected to another end of the coaxial cable and is configured to convey the noise generated by the signal generator to a power supply and a ground pin of a device element of the printed circuit board via the coaxial cable.
A noise injection apparatus that injects noise to a printed circuit board, the apparatus comprising:
- a printed circuit board support member that fastens the printed circuit board in place;
- a probe including an SMA connector;
- and
- a probe support member that fastens the probe such that the SMA connector of the probe is positioned perpendicular to a measuring surface of the printed circuit board.
A noise injection apparatus that injects noise to a printed circuit board, the apparatus comprising:
- an oscillator unit that includes an oscillating circuit that uses a band pass filter to output a sine wave signal, the oscillating circuit including an oscillator that outputs a signal at a given frequency, a coil that removes spurious components included in the output of the oscillator, a substrate on which circuit components including the oscillator and the coil are mounted, a battery for operating the circuit components, and a probe connecting SBA connector.
A noise injection apparatus that injects noise to a printed circuit board, the apparatus comprising:
- an oscillator unit that includes an oscillator that outputs a signal at a given frequency;
- a buffer circuit having a plurality of inverters that are connected in parallel;
- a substrate on which circuit components including the oscillator and the buffer circuit are mounted;
- a battery for operating the circuit components;
- and
- a signal output wire that is connected to the printed circuit board.
Dependencies are inferred from the claim text.