Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Reexamination Certificate
2005-05-17
2005-05-17
Jackson, Stephen W. (Department: 2836)
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
C361S058000, C361S113000, C307S112000
Reexamination Certificate
active
06894885
ABSTRACT:
The reader/writer of this invention includes a high voltage withstanding amplifier, plural resonance circuits and plural high voltage withstanding analog switching circuits. The high voltage withstanding amplifier amplifies an analog signal to be sent to the outside. Each of the resonance circuits sends the analog signal amplified by the high voltage withstanding amplifier to the outside. The high voltage withstanding analog switching circuits are provided between the high voltage withstanding amplifier and the resonance circuits correspondingly to the resonance circuits. Each of the high voltage withstanding analog switching circuits electrically connects/disconnects the high voltage withstanding amplifier to/from the corresponding resonance circuit. Since the reader/writer includes the high voltage withstanding analog switching circuits, there is no need to provide high voltage withstanding amplifiers at the previous stages of the resonance circuits as in a conventional reader/writer. Accordingly, as compared with the conventional reader/writer in which the high voltage withstanding amplifiers are provided correspondingly to the respective resonance circuits, the number of high voltage withstanding amplifiers (the number of components) can be reduced.
REFERENCES:
patent: 6014088 (2000-01-01), Van Santbrink et al.
Asaka Nobuyoshi
Iiyama Keiichi
Jackson Stephen W.
McDermott Will & Emery LLP
LandOfFree
Reader/writer and analog switching circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reader/writer and analog switching circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reader/writer and analog switching circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3422509