Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Particular stable state circuit
Reexamination Certificate
2005-04-19
2005-04-19
Nguyen, Long (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Particular stable state circuit
C327S208000, C327S218000
Reexamination Certificate
active
06882198
ABSTRACT:
An edge-triggered flip-flop circuit in which a pair of capacitors are alternately charged and discharged to voltages approximating supply rail values and, in combination of with a small number of switches, present high or low impedance paths for input signal transitions of a predetermined polarity to trigger state changes. In an alternative embodiment large switching capacitors are avoided in a circuit that employs a pair of pass-transistor configurations to connect respective capacitors to output terminals of a bistable device. The voltages on the capacitors track the corresponding bistable device output voltages when the input signal is in a given state (illustratively low), and store the value of the corresponding voltage when turned off by the (illustratively high) other state of the input signal. Then, the voltage on the capacitors and the selected input signal transition is used to effectively trigger a transition in the bistable device.
REFERENCES:
patent: 3457435 (1969-07-01), Burns et al.
patent: 4228370 (1980-10-01), Milburn, Jr.
patent: 4508980 (1985-04-01), Puar
patent: 4614881 (1986-09-01), Yoshida et al.
patent: 4680482 (1987-07-01), Obara
patent: 4803386 (1989-02-01), Kraus et al.
patent: 5546026 (1996-08-01), Lin et al.
patent: 6621319 (2003-09-01), Herrera et al.
Herrera Ruben
Sarpeshkar Rahul
Agere Systems Inc.
Nguyen Long
LandOfFree
Edge-triggered toggle flip-flop circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Edge-triggered toggle flip-flop circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Edge-triggered toggle flip-flop circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3411127