Title:
VARIABLE ISI TRANSMISSION CHANNEL DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/115898
Kind Code:
A1
Abstract:
A variable ISI transmission channel device inserted in a high-speed transmission channel for high-speed serial data communication continuously adjusts the amount of an inter-symbol interference (ISI) in the high-speed transmission channel, thereby simulating a "live" ISI environment to which the high-speed transmission channel is exposed during operation in a situation such as a bit error test. A transmission loss generation member (6), (16), (26) such as an inductor, a magnetic body, or an electric conductor is slid over a conductor strip (2) exposed to the surface of a tabular dielectric substrate (1), with the underside of the transmission loss generation member (6), (16), (26) facing the surface of the conductor strip (2), whereby the face-to-face area is continuously increased or reduced. A dielectric loss, a magnetic loss, and a resistance loss increasing or decreasing inside the transmission loss generation member are reflected in a high-frequency signal on the conductor strip (2).
Inventors:
SONE KIYOSHI (JP)
Application Number:
PCT/JP2014/052362
Publication Date:
July 31, 2014
Filing Date:
January 27, 2014
Export Citation:
Assignee:
ARTEK KABUSHIKI KAISHA (JP)
International Classes:
H04L25/02
Foreign References:
| JP2003125010A | 2003-04-25 | |||
| JP2008091258A | 2008-04-17 | |||
| US20090312972A1 | 2009-12-17 | |||
| JP2006317438A | 2006-11-24 | |||
| US20080228426A1 | 2008-09-18 |
Attorney, Agent or Firm:
OZAKI, Kowzow (JP)
Kozo Ozaki (JP)
Kozo Ozaki (JP)
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