Smooth Signal Filtering

A signal filtering device for filtering a series of values, comprising:

• a signal input interface;
• a signal output interface outputting a value;
• a first signal transmission branch with a signal filter, the signal filter configured to filter the series of values;
• a second signal transmission branch passing a value from the signal input interface to the signal output interface, wherein the signal input interface receiving the series of values and providing the received values to the first signal transmission branch and the second signal transmission branch;
• a switch configured to selectively connect one of the first signal transmission branch and the second signal transmission branch to the signal output interface;
• and
• a switch control device connected to the signal input interface and configured to receive the series of values, the switch control device configured to control a switching operation of the switch based on the received series of values.

A method for filtering a series of values, comprising:

• receiving the series of values;
• filtering the series of values;
• monitoring the series of values and determining a signal value change within a predetermined period of time;
• and
• passing through the received series of values or the filtered series of values depending on the determined signal value change within the predetermined period of time.