Signal crosstalk inhibition unit and a signal processing...

Details Signal crosstalk inhibition unit and a signal processing... Signal crosstalk inhibition unit and a signal processing...

2005-07-26

2005-07-26

Le, Don (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Output switching noise reduction

C326S030000, C333S012000

Reexamination Certificate

active

06922072

ABSTRACT:
A crosstalk inhibition unit which can inhibit crosstalk without causing an enlargement of a signal processing apparatus.A crosstalk inhibition unit10in order to inhibit crosstalk is provided to a signal processing apparatus. The crosstalk inhibition unit10is comprised of a contact terminal detection means8for detecting whether a contact terminal7bof a signal cable7is inserted to an external terminal5bof the signal processing apparatus and a first switching element2which operates differently depending on whether the contact terminal detection means8detects the contact terminal7b.When the contact terminal detection means8does not detect the contact terminal8, the first switching element2becomes conductive, and a signal line15bis grounded. Thus, the cable7is not connected, and a signal line15b, which is not used for signal processing is grounded. Accordingly, without particularly providing a grounded line, crosstalk between signal lines15a, 16and19can be inhibited.

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