Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Rectangular or pulse waveform width control
Reexamination Certificate
2007-12-21
2010-10-26
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Rectangular or pulse waveform width control
C327S171000, C327S238000, C327S239000, C327S254000
Reexamination Certificate
active
07821315
ABSTRACT:
Techniques are disclosed for adjusting and programming the duty cycle of a signal generated by a circuit. In an embodiment, parallel transistors are coupled between a NAND gate and a supply voltage. Selectively enabling the parallel transistors adjusts the switching point of the NAND gate, thereby allowing control of the pulse width of the output signal. In an alternative embodiment, the size of the PMOS versus the NMOS transistors in the NAND gate is selectively varied to achieve the same effect. Further disclosed are applications of the techniques to calibrating the receiver to minimize measured second-order inter-modulation products and/or residual sideband.
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International Search Report and Written Opinion - PCT/US08/082926, International Searching Authority - European Patent Office, Jul. 9, 2009.
Bossu Frederic
Segoria Anthony Francis
Cole Brandon S
Donovan Lincoln
QUALCOMM Incorporated
Xu Jiayu
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