| Patent Number |
Title Of Patent |
Date Issued |
| 6831521 |
Method and apparatus for detecting interruption of an input signal with cancellation of offset l |
December 14, 2004 |
| An input branch of a loss-of-signal (LOS) detector is coupled to a first input of a comparator. A threshold branch of the LOS detector is coupled to a second input of the comparator. An operational amplifier is connected between the input branch and the threshold branch to couple an offs |
| 6809596 |
DC offset cancellation circuit, system and method |
October 26, 2004 |
| Described are a circuit and system to provide an output signal in response to composite input signal comprising an AC signal component and a DC signal component. An amplifier provides an amplified voltage signal in response to a voltage representative of the composite signal. A filter ma |
| 6771102 |
Common mode feedback technique for a low voltage charge pump |
August 3, 2004 |
| A charge pump includes a first current source, a second current source, and a current mirror. The first current source is included to set a common mode output voltage of a charge pump core based on a desired common mode input of the charge pump core. The second current source is included |
| 6686794 |
Differential charge pump |
February 3, 2004 |
| According to some embodiments, a charge pump includes a first current source coupled to a first and a second switch, each of the first and the second switch to receive a respective component of a first differential control signal, a second current source coupled to a third and a fourth |
