The present invention optimizes graphics performance during zone rendering by providing an automatic management of bin memory between the binning and rendering phases. Data Enc generated by encrypting a given content using a content key Kc are recorded, along with a header, certificate, data Enc generated by encrypting the content key Kc using a root key KR, and an enabling key block. The folded monopole antenna includes two folded radiation planes having a quarter wavelength, and reactances loaded to predetermined positions of the two radiation planes. Reliability information relating to bits forming a symbol may be determined for at least one symbol of the second set. A controller adjusts the energy input to the capacitor bank, as well as the trigger to the controllable switch. There is a counter electrode having a surface area in said treatment zone which is not greater than a surface area of said counter electrode.