Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2007-07-10
2007-07-10
Nguyen, Linh My (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S231000
Reexamination Certificate
active
11227987
ABSTRACT:
An output signal is generated with a predetermined phase shift with respect to an input signal using a closed loop control. The input and output signal of the closed loop control are logically combined in accordance with first and second combinatory logic to generate first and second control signals. The first and second control signals selectively activate first and second current sources, respectively. The current supplied by the first current source charges a capacitance controlling the closed loop control, while the current supplied by the second current source discharges the capacitance. By selecting the types of the combinatory logics as well as the ratio of the currents supplied by the first and second current sources, the phase shift of the output signal with respect to the input signal can be variably adapted to individual requirements.
REFERENCES:
patent: 5614845 (1997-03-01), Masleid
patent: 6330330 (2001-12-01), Scott et al.
patent: 6356131 (2002-03-01), Kuwano
patent: 6744281 (2004-06-01), Harrison
Brinks Hofer Gilson & Lione
Infineon - Technologies AG
Nguyen Linh My
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