Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Patent
1994-07-19
1997-07-08
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
327159, 331 2, 331 17, 331 34, H03L 7093, H03L 7087, H03L 7099
Patent
active
056465629
ABSTRACT:
First and second phase synchronization circuits include variable frequency oscillation circuits of the same structure. Operating point shift is performed by an operating point shift circuit, the output Vg of which is then inputted into an addition circuit. The oscillation frequency of the variable frequency oscillation circuits is con, rolled by the output Vf2 of the addition circuit. The signal Vf2 is also inputted into the terminal IN of a variable frequency oscillation circuit in a one-shot pulse generating circuit. The one-shot pulse width is determined by the signal Vf2 with the counts m of an edge detecting circuit. The one-shot pulse OS is inputted into a third phase synchronization circuit which in turn provides SYCLK and SYDT through a data standardizing circuit.
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Callahan Timothy P.
Lam T.
Seiko Epson Corporation
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