Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Generating sawtooth or triangular output
Reexamination Certificate
2008-03-04
2009-06-30
Cox, Cassandra (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Generating sawtooth or triangular output
C327S141000, C327S163000
Reexamination Certificate
active
07554370
ABSTRACT:
A multiplicity of electronic devices is provided to generate triangular wave signals variable between an upper and lower limit voltages by charging or discharging capacitors. One of the triangular wave signals serves as a master triangular wave signal for controlling the phases of the remaining (or slave) triangular wave signals. A detection signal is generated every time the master triangular wave signal reaches predetermined threshold levels. In response to the detection signal, a capacitor associated with one slave triangular signal is promptly discharged to bring the slave triangular signal to the lower limit voltage, whereby the respective slave triangular wave signals are synchronized to be offset in phase relative to the master triangular wave signal by respective predetermined phase angles.
REFERENCES:
patent: 5459419 (1995-10-01), Hatakenaka
patent: 5917369 (1999-06-01), Nguyen
patent: 6522209 (2003-02-01), Hughes
patent: 6587006 (2003-07-01), Kawajiri et al.
patent: 6859076 (2005-02-01), Fujiwara
patent: 6911806 (2005-06-01), Saeki et al.
patent: 7391189 (2008-06-01), Nitta et al.
patent: 2003/0001683 (2003-01-01), Kawajiri et al.
patent: 2004/0085102 (2004-05-01), Fujiwara
patent: 2006/0208718 (2006-09-01), Nitta et al.
patent: 03-155366 (1991-07-01), None
patent: 05-048406 (1993-02-01), None
patent: 08-293767 (1996-11-01), None
patent: 2000-114936 (2000-04-01), None
patent: 2002-084175 (2002-03-01), None
Cox Cassandra
Hogan & Hartson LLP
Rohm & Co., Ltd.
LandOfFree
Method and system for synchronizing phase of triangular signal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for synchronizing phase of triangular signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for synchronizing phase of triangular signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4055090