Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1990-08-15
1992-09-08
Wieder, Kenneth A.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
34087038, 34082578, 324 66, G01R 1900, G08C 1500
Patent
active
051461722
ABSTRACT:
An identification module and identification determination circuitry are provided for the purpose of identifying an apparatus and electrically determining the identification number of that identified apparatus. The identification module comprises a plurality of resistive identification circuits which, in turn, each comprise a plurality of resistive elements selected to have resistive magnitudes that relate to each other by powers, or orders, of two. The identification determination circuit of the present invention places each of the resistive identification circuits in series with a resistor of known magnitude between two connection points to provide a voltage potential and a resulting current flowing through the resistive identification circuit. The invention also provides a means by which the input voltage can be determined and used to adjust the determined magnitude of the resistive identification circuit.
REFERENCES:
patent: 3441804 (1969-04-01), Klemmer
patent: 3528104 (1970-09-01), Ehlshlager
patent: 3560941 (1971-02-01), Wallace
patent: 3806904 (1974-04-01), Weinberger et al.
patent: 3863231 (1975-01-01), Taylor
patent: 4016483 (1977-04-01), Rudin
patent: 4344064 (1982-08-01), Bitler
patent: 4484213 (1984-11-01), Franklin
patent: 4575714 (1986-03-01), Rummel
patent: 4580138 (1986-04-01), Morrison
patent: 4884070 (1989-11-01), Hannaford
Article entitled "Using Fusible Links to Apply Machine-Readable Serial Numbers to Printed-Circuit Boards" by R. B. Wahler, IBM Technical Disclosure Bulletin vol. 20, No. 6, Nov. 1977.
Conn William
Gale Andrew L.
Marsh Phillip A.
Mehr-Ayin Kourosh
Rivera Luis M.
Lanyi William D.
Regan Maura K.
Sundstrand Corp.
Wieder Kenneth A.
LandOfFree
Engine identification system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine identification system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine identification system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-136585