Data bus

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2006-02-21

2006-02-21

Ray, Gopal C. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

C326S021000, C370S201000, C361S111000

Reexamination Certificate

active

07003602

ABSTRACT:
In apparatuses (1, 2, 3) controlled or operated via an I2C bus, it may be necessary to take measures to suppress interference signals at the data signal input/output of the respective apparatus without impairing the data transport at the same time. The data line at the data signal input/output contains an RC element, in the form of a low-pass filter, with a diode connected in parallel with the RC element, the low-pass filter action allowing the arrangement to be used to suppress interference signals acting on the data signal input/output, and, secondly, the transmissive action of the diode meaning that the arrangement does not impair a data signal leaving the data signal input/output.

REFERENCES:
patent: 3226488 (1965-12-01), Sikorski et al.
patent: 4963866 (1990-10-01), Duncan
patent: 5446772 (1995-08-01), Korhonen
patent: 5798740 (1998-08-01), Bitzakidis et al.
patent: 6040968 (2000-03-01), Duvvury et al.
patent: 11-234158 (1999-08-01), None
patent: 99/31598 (1999-06-01), None
“Low cost multi-channel 16-bit transient digitizer system for the PBX-M machine” by Feng, H. (abstract only) Publication Date: Oct. 2-6, 1989.
Patent Abstracts of Japan, vol. 1999, No. 13, Nov. 30, 1999 & JP 11-234158.
Copy of Search Report dated Dec. 18, 2002.

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