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US 7,610,175 B2Granted
Timestamping signal monitor device
AssigneeAgilent Technologies, Inc.
InventorJohn C. Eidson
Life of this patent
Estimating the term…
Abstract
A signal monitor device that detects a signal propagating on a signal line and that generates a timestamp when the signal is detected. The timestamp may be used in a variety of applications including measuring the propagation delays on signal lines and determining the timing in a system.
Claims20
A signal monitor device, comprising:
- a signal detector that detects a signal propagating on a signal line and that generates a timestamp when the signal is detected;
- and
- a device controller that corrects the timestamp by subtracting delays introduced by the signal monitor device.
A method for signal monitoring, comprising:
- detecting a signal propagating on a signal line;
- generating a timestamp when the signal is detected;
- and
- correcting the timestamp by subtracting delays introduced by the signal monitoring.
1 more element
A system, comprising:
- a set of two or more signal monitor devices that generate a set of timestamps in response to a set of signals propagating on a set of signal lines;
- and
- a device that obtains the timestamps from the signal monitor devices via a network, the device having a clock that provides a time base for evaluating the timestamps.
Dependencies are inferred from the claim text.