Evaluation device and evaluation system evaluating whether a required output is made from the device to be evaluated
AssigneeStep Technica Co., Ltd.
InventorsTomihiro Mugitani, Takashi Kobayashi, Tatsuhiko Nakajima
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Abstract
An evaluation device 20 comprises a circuit element comprising respective pairs of inputs and outputs including several capacitances 25a-25c and resistances 26a-26d, one end of each being connected to both ends of the capacitances 25a-25c, wherein a resistance value of a signal input side is generally equal to that of a signal output side. The evaluation device 20 is further provided with a connecting terminal with an output device 10 for outputting signals to a device to be evaluated 30 on the signal input side, and is provided with a connecting terminal with the device to be evaluated 30 on the signal output side.
Claims4
An evaluation device provided between an output device and a device to be evaluated, when an output from the output device input to the device to be evaluated, evaluating whether or not a required output from the device to be evaluated based on the output is made,
- The evaluation device comprising:
- a first amplifier to amplify the output from the output device,
- a second amplifier to amplify the output from the device to be evaluated,
- one or two or more circuit elements to attenuate respectively the output amplified by the each amplifier
- wherein, the circuit elements comprising:
- a pair of transmission lines for evaluation,
- capacitances which are placed between the transmission lines, and
- several resistances which are directly connected to at least one of the transmission lines for evaluation,
- wherein, values of the capacitances and values of the resistances are decided based on a pair of actual transmission lines connecting between the amplifiers and the device to be evaluated, or a transmission speed of the output passing through the transmission line.
Dependencies are inferred from the claim text.