Apparatus and method for generating a phase delay

Details Apparatus and method for generating a phase delay Apparatus and method for generating a phase delay

2006-11-07

2006-11-07

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S277000

Reexamination Certificate

active

07132872

ABSTRACT:
An apparatus for generating a phase delay is disclosed. The apparatus includes a buffer utilized for buffering an input signal and then outputting an output signal; a digital to analog converter (DAC) utilized for converting a digital value representative of phase delay into a corresponding control voltage and outputting a control voltage; and a variable capacitor that has a capacitance value controlled by the control voltage. By controlling the variable capacitance value, the apparatus for generating a phase delay can adjust the phase delay between the input signal and the output signal.

REFERENCES:
patent: 4829272 (1989-05-01), Kameya
patent: 6219397 (2001-04-01), Park
patent: 6380774 (2002-04-01), Saeki
patent: 6637008 (2003-10-01), Higuchi et al.
patent: 6816031 (2004-11-01), Miller
patent: 556072 (2003-10-01), None

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