Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2007-07-10
2007-07-10
Nguyen, Khai M. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S022000, C341S026000, C341S154000
Reexamination Certificate
active
10660580
ABSTRACT:
First and second resistors are given a common length L and arranged to have a constant equal resistance per unit length. A plurality of switch elements are made conductive between the resistors. A predetermined constant voltage V1is applied to one terminal of the resistor through a wiring. The voltage value AD1at the other terminal of the resistor is detected by a processing unit through a wiring. The voltage value AD2at one terminal of the resistor is detected by the processing unit through a wiring. The other terminal of the resistor is connected with the ground through a wiring. On the basis of the voltage values AD1and AD2detected, the operating states of the individual switch elements are detected by the processing unit.
REFERENCES:
patent: 3765015 (1973-10-01), Gruner
patent: 4884070 (1989-11-01), Hannaford
patent: 5983116 (1999-11-01), Nash et al.
patent: 6639523 (2003-10-01), Kaikuranta et al.
patent: 6970752 (2005-11-01), Lim et al.
patent: A 8-146053 (1996-06-01), None
patent: A 10-161812 (1998-06-01), None
Autonetworks Technologies Ltd.
Sumitomo Electric Industries Ltd.
Sumitomo Wiring Systems Ltd.
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