Jitter detection apparatus and jitter detection method

A jitter detection apparatus, comprising:

• an A/D conversion section for converting an input analog signal into a plurality of discrete multiple value digital signals;
• a binarization section for performing binarization of the plurality of multiple value digital signals to generate a binary signal;
• a jitter calculation section for calculating a jitter amount based on an error between a value of a prescribed multiple value digital signal sampled at a time which is substantially the same as a time when the value of the binary signal is changed and a prescribed threshold value;
• a pattern detection section for detecting patterns of the binary signal before and after the time when the prescribed multiple value digital signal is sampled;
• an amplitude detection section for detecting an amplitude of the prescribed multiple value digital signal based on at least one of a plurality of multiple value digital signals sampled before and after the time when the prescribed multiple value digital signal is sampled;
• and
• a correction section for correcting the jitter amount based on the detected pattern and the detected amplitude.

A jitter detection apparatus, comprising:

• an A/D conversion section for converting an input analog signal into a plurality of discrete multiple value digital signals;
• a binarization section for performing binarization of the plurality of multiple value digital signals to generate a binary signal;
• a pattern detection section for detecting patterns of the binary signal before and after a time when the value of the binary signal is changed;
• and
• a jitter calculation section for calculating a jitter amount based on the detected pattern and an error between a prescribed threshold value and a value of a prescribed multiple value digital signal sampled at a time which is substantially the same as the time when the value of the binary signal is changed.

A jitter detection method, comprising the steps of:

• converting an input analog signal into a plurality of discrete multiple value digital signals;
• performing binarization of the plurality of multiple value digital signals to generate a binary signal;
• calculating a jitter amount based on an error between a value of a prescribed multiple value digital signal sampled at a time which is substantially the same as a time when the value of the binary signal is changed and a prescribed threshold value;
• detecting patterns of the binary signal before and after the time when the prescribed multiple value digital signal is sampled;
• and
• correcting the jitter amount based on the detected pattern.

A jitter detection method, comprising the steps of:

• converting an input analog signal into a plurality of discrete multiple value digital signals;
• performing binarization of the plurality of multiple value digital signals to generate a binary signal;
• calculating a jitter amount based on an error between a value of a prescribed multiple value digital signal sampled at a time which is substantially the same as a time when the value of the binary signal is changed and a prescribed threshold value;
• detecting patterns of the binary signal before and after the time when the prescribed multiple value digital signal is sampled;
• detecting an amplitude of the prescribed multiple value digital signal based on at least one of a plurality of multiple value digital signals sampled before and after the time when the prescribed multiple value digital signal is sampled;
• and
• correcting the jitter amount based on the detected pattern and the detected amplitude.

A jitter detection method, comprising the steps of:

• converting an input analog signal into a plurality of discrete multiple value digital signals;
• performing binarization of the plurality of multiple value digital signals to generate a binary signal;
• detecting patterns of the binary signal before and after a time when the value of the binary signal is changed;
• and
• calculating a jitter amount based on the detected pattern and an error between a prescribed threshold value and a value of a prescribed multiple value digital signal sampled at a time which is substantially the same as the time when the value of the binary signal is changed.