Signal analyzer and method of processing data from an input signal

A signal analyzer for analyzing an input signal, comprising:

• at least one input for receiving said input signal;
• at least one acquisition unit for acquiring data assigned to said input signal;
• an acquisition memory for storing said acquired data, said acquisition memory being adapted to store data in at least one ring buffer;
• and
• an acquisition memory controller to control at least one of writing said acquired data in said acquisition memory and reading said acquired data from said acquisition memory,
• said acquisition memory controller comprising a data read module for reading data from said at least one ring buffer;
• said acquisition memory controller comprising a copy write module which taps data read by said data read module;
• said acquisition memory comprising an additional memory section;
• and
• said copy write module being configured to write said data tapped into said additional memory section, such that the data tapped is written back into the acquisition memory;
• wherein said additional memory section is a reserved memory section in the acquisition memory,
• wherein only said data tapped is enabled to be written into said additional memory section,
• wherein said signal analyzer is an oscilloscope, and
• wherein said at least one acquisition unit, said acquisition memory comprising said ring buffer and said additional memory section, and said acquisition memory controller are integrated into the oscilloscope,
• wherein a post-processor is provided that receives said data read from said data read module, and wherein said post-processor is configured to post-process said data read,
• wherein said acquisition memory controller comprises at least one copy read module for reading said data from said additional memory section, and
• wherein a measurement module is provided that is connected with said copy read module, said measurement module being configured to perform measurements on said data read from said additional memory section.