Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Converting – per se – of an ac input to corresponding dc at an...
Patent
1994-11-15
1996-12-17
Shin, Christopher B.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Converting, per se, of an ac input to corresponding dc at an...
327 44, 327145, 327147, G06F 102, H02J 100
Patent
active
055863094
ABSTRACT:
A programmable frequency synthesizer includes a first memory (e.g., ROM) for storing a plurality of pre-programmed frequencies, a second memory (e.g., RAM) for storing at least one user input programmable frequency, and dual purpose frequency synthesizer inputs for providing command address information to select one of the pre-programmed frequencies from the first memory and for providing serial data representing a user input programmable frequency to be stored in the second memory. The frequency synthesizer further includes a control input and decoder for directing the address information and the user input programmable frequency data to the first or second memory, respectively.
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Shin Christopher B.
Sierra Semiconductor Corporation
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