Patent ID: 8050733

Claim:
A sensor system for indicating an electrocardiogram from the surface of the user's skin, the sensor system being configured to be connected to a user-specific heart rate monitor, wherein the sensor system comprises at least one flexible film structure comprising: a first insulation layer; a second insulation layer having at least one opening; and at least one electric conductor layer formed on top of the first insulation layer between the first insulation layer and the second insulation layer, the at least one electric conductor layer comprising a single electrode area configured to establish an electric contact with the surface of the user's skin through the at least one opening of the second insulation layer and to generate as output an electric signal proportional to a momentary value of the electrocardiogram, the electrode area comprising a uniform film structure, the electric conductor layer comprising a single protective area surrounding the entire electrode area at the film structure level, the protective area being connected to the electrode area with a first impedance connection, the protective area comprising a uniform film structure, the protective area being configured to establish an electric contact with the surface of the skin and to protect the sensor system from static electricity, the electric conductor layer having no gaps in the electrode area.