Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Parameter related to the reproduction or fidelity of a...
Reexamination Certificate
2005-08-02
2005-08-02
Pert, Evan (Department: 2826)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Parameter related to the reproduction or fidelity of a...
C324S765010, C702S118000
Reexamination Certificate
active
06924651
ABSTRACT:
A printed board inspecting apparatus includes: an input unit for inputting a pulse from a first signal line; a receiving unit for receiving a voltage induced in a second signal line in response to the input pulse inputted; and a judging unit for judging whether or not a ratio between a voltage of the input pulse and the voltage induced in the second signal line is within a predetermined range. A check is made using a TDR method to determine whether or not the degree of coupling is within a range of specified values and a check is made to determine each of the voltage of the polarized RZ signal and the pulse width time is within a range of specified values to thereby inspect a printed board and a semiconductor chip constituting a bus using a directional coupler.
REFERENCES:
patent: 5638402 (1997-06-01), Osaka et al.
patent: 6573801 (2003-06-01), Benham et al.
patent: 6611181 (2003-08-01), Marketkar et al.
patent: 2003/0057136 (2003-03-01), McIntush et al.
patent: 1 011 039 (2000-06-01), None
patent: 8-184842 (1996-07-01), None
patent: 8-203898 (1996-08-01), None
patent: 8-240628 (1996-09-01), None
patent: 2001-27918 (2001-01-01), None
patent: 10-1996-24442 (1996-07-01), None
patent: 10-1998-0003619 (1998-03-01), None
Komatsu Toyohiko
Osaka Hideki
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Pert Evan
LandOfFree
Printed board inspecting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Printed board inspecting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printed board inspecting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3492478