Clock frequency divider circuit

Details Clock frequency divider circuit Clock frequency divider circuit

2007-04-17

2007-04-17

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S117000, C377S047000

Reexamination Certificate

active

11274256

ABSTRACT:
A clock frequency divider circuit including: a storing section for storing an input signal in synchronism with an input clock signal; a supplying section for supplying, as the input signal, one of a first value obtained by adding a value stored by the storing section to a numerator setting value and a second value obtained by subtracting a denominator setting value from the first value; a retaining section for retaining a most significant bit of the value stored by the storing section in synchronism with the input clock signal; and a logical product generating section for generating a logical product of a value retained by the retaining section and the input clock signal, and outputting the logical product as an output clock signal; wherein the supplying section supplies one of the first value and the second value as the input signal on a basis of the most significant bit of the value stored by the storing section.

REFERENCES:
patent: 4462110 (1984-07-01), Baldwin et al.
patent: 6445232 (2002-09-01), Logue et al.
patent: 6459309 (2002-10-01), Canard et al.
patent: 6618462 (2003-09-01), Ross et al.
patent: 2001-127618 (2001-05-01), None
Riley, T.A.D., Copeland, M.A., Kwasniewski, T.A.; “Delta-Sigma Modulation in Fractional-N Frequency Synthsis,” May 1993, IEEE Journal of Solid-State Circuits, vol. 28, Issue 5, pp. 553-559.

Affiliated with

Also associated with

Rating

Clock frequency divider 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 Clock frequency divider circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clock frequency divider circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3801855