H - Electricity – 03 – K
Patent
H - Electricity
03
K
H03K 23/66 (2006.01) H03L 7/193 (2006.01)
Patent
CA 2050676
In a phase locked loop having a variable divider, a dual modulus counter is used to provide the variable divider with selection signals. The variable divider is capable of providing an overall division ratio in increments of one over a contiguous range of values. The dual modulus counter includes a counter, a comparator and logic gates which generate selection signals that allow the variable divider to divide an input signal by at least division ratios R1 and R2. A phase locked loop utilizing the dual modulus counter is particularly well suited for use in a digital frequency synthesizer.
Ericsson Ge Mobile Communications Holding Inc.
Ericsson Inc.
Marks & Clerk
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