Patent ID: 8060326

Claim:
A measurement apparatus comprising: a first timing detecting section that detects first change timings of a signal under measurement; a second timing detecting section that detects second change timings of the signal under measurement; a buffer section that buffers data indicating the first change timings detected by the first timing detecting section and data indicating the second change timings detected by the second timing detecting section; and a calculating section that acquires, from the buffer section, the data indicating the first change timings and the data indicating the second change timings, calculates a time difference between the first change timings and the second change timings, and outputs the time difference, wherein the buffer section includes: a first FIFO section that sequentially stores pieces of the data indicating the first change timings detected by the first timing detecting section, and sequentially outputs the stored pieces of data in an order in which the pieces of data were received; and a second FIFO section that sequentially stores pieces of the data indicating the second change timings detected by the second timing detecting section, and sequentially outputs the stored pieces of data in an order in which the pieces of data were received.