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US 8,803,556 B1Granted
Method and apparatus for comparing signals
AssigneeMarvell Israel (M.I.S.L) Ltd.
InventorShimon Avitan
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Abstract
Some of the embodiments of the present disclosure provide a method comprising receiving a first signal and a second signal; generating a first digital count corresponding to a characteristic of the first signal; subsequent to generating the first digital count, generating a second digital count corresponding to a characteristic of the second signal; and comparing the first digital count with the second digital count. Other embodiments are also described and claimed.
Claims16
A method comprising:
- receiving a first signal and a second signal;
- generating a first digital count corresponding to a characteristic of the first signal, wherein generating the first digital count comprises (i) generating a first intermediate signal having a first frequency such that the first frequency is always proportional to the characteristic of the first signal, and (ii) counting a number of rising edges of the first intermediate signal during a first time window to generate the first digital count;
- subsequent to generating the first digital count, generating a second digital count corresponding to a characteristic of the second signal, wherein generating the second digital count comprises (i) generating a second intermediate signal having a second frequency such that the second frequency is always proportional to the characteristic of the second signal, and (ii) counting a number of rising edges of the second intermediate signal during a second time window to generate the second digital count;
- and
- comparing the first digital count with the second digital count.
2 more elements
An apparatus comprising:
- a digital count generator module configured to (i) generate a first digital count corresponding to a characteristic of a first signal, and (ii) subsequent to generating the first digital count, generate a second digital count corresponding to the characteristic of a second signal, wherein the digital count generator module comprises:
- a voltage to frequency conversion module configured to (i) generate a first intermediate signal having a first frequency that is always proportional to the characteristic of the first signal, and (ii) generate a second intermediate signal having a second frequency that is always proportional to the characteristic of the second signal, and
- a frequency to digital count conversion module configured to (i) count a number rising edges of the first intermediate signal during a first time window to generate the first digital count, and (ii) count a number rising edges of the second intermediate signal during a second time window to generate the second digital count;
- and
- a comparison module configured to compare the first digital count with the second digital count.
2 more elements
Dependencies are inferred from the claim text.