Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Reexamination Certificate
2007-10-16
2007-10-16
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
C327S104000, C363S044000
Reexamination Certificate
active
10935699
ABSTRACT:
A precision voltage rectifier comprises a source voltage input and a voltage reference. The rectifier comprises switching elements that, according to the sign of the source signal, change the connections to the inputs of a differential difference amplifier that is connected as a voltage inverter. Embodiments of the invention are fully-integrated and CMOS compatible with high-input impedance such that the invention can be operated in low-power situations. A preferred application involves the integration of several similar circuits in a high-density, low-power implantable medical device. Particular embodiments of the invention can be used to rectify nerve signals collected by electrodes for use in a system for manipulating a prosthetic device.
REFERENCES:
patent: 4473757 (1984-09-01), Fargo et al.
patent: 4750499 (1988-06-01), Hoffer
patent: 5173849 (1992-12-01), Brooks
patent: 5306968 (1994-04-01), Kimura
patent: 5691658 (1997-11-01), Klein
patent: 5999849 (1999-12-01), Gord et al.
patent: 6469561 (2002-10-01), Pernigotti et al.
patent: 0389515 (1996-04-01), None
patent: 0976420 (2000-02-01), None
patent: 0974377 (2002-04-01), None
patent: WO89/05058 (1989-06-01), None
patent: WO96/28879 (1996-09-01), None
R. Gregorian and C.G. Temes, “Analog MOS Integrated Circuits for Signal Processing”, John Wiley & Sons, 1986, pp. 131-133.
K. Hayatleh et al. “Degradation Mechanisms in Operational Amplifier Precision Rectifiers” IEE Transactions on Circuits and Systems-l: Fundamental Theory and Applications, vol. 42, No. 8, Aug. 1995, pp. 479-485.
Paul D. Walker and Michael M. Green, “CMOS Half-Wave and Full Wave Precision Voltage Rectification Circuits” IEE, 1996, pp. 901-904.
A. arnaud et al., “Design of a Micropower Signal Conditioning Circuit for a Peizoresistive Acceleration Sensor”, IEEE International Symposium on Circuits and Systems, vol. 1, 1998, pp. 269-272.
Neurostream Technologies Inc.
Seyfarth Shaw LLP
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