Passive (non-contact) recharging of secondary battery cell(s) powering RFID transponder tags

A radio frequency identification (RFID) device comprising:

• a) communication circuitry having controlling logic and memory;
• b) a secondary battery unit for powering said memory;
• c) a secondary battery trickle charging unit for charging said secondary battery;
• and
• d) a power unit for supplying voltage and current to said secondary battery trickle charging unit, said power unit is selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer;
• wherein said communication circuitry, said secondary battery unit, said secondary battery trickle charging unit and said power unit are all combined to form a single radio frequency identification (RFID) package.

A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of:

• a) providing power to a secondary battery trickle charging unit by a radio frequency power source;
• b) conditioning said power to match the input requirements of said secondary battery trickle charging unit;
• and
• c) using said conditioned power for trickle charging said secondary battery unit;
• wherein said power is provided by one of the power units selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer.

A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of:

• a) providing power to a secondary battery trickle charging unit by a radio frequency power source;
• b) conditioning said power to match the input requirements of said secondary battery trickle charging unit;
• and
• c) using said conditioned power for trickle charging said secondary battery unit;
• wherein said power is provided by infrared photovoltaic cells located on the inside of the package that are driven by heat dissipated by said package.

A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of:

• a) providing power to a secondary battery trickle charging unit by a radio frequency power source;
• b) conditioning said power to match the input requirements of said secondary battery trickle charging unit;
• and
• c) using said conditioned power for trickle charging said secondary battery unit;
• `wherein said power is provided by a power unit located on the inside of the package.

A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of:

• a) providing power to a secondary battery trickle charging unit by a radio frequency power source;
• b) conditioning said power to match the input requirements of said secondary battery trickle charging unit;
• and
• c) using said conditioned power for trickle charging said secondary battery unit;
• wherein said power is provided by a power unit located on the outside of the package.

A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of:

• a) providing power to a secondary battery trickle charging unit by a radio frequency power source;
• b) conditioning said power to match the input requirements of said secondary battery trickle charging unit;
• and
• c) using said conditioned power for trickle charging said secondary battery unit;
• wherein said power is provided by one of the power units selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer.

A method for charging of a secondary battery unit in a radio frequency identification(RFID) package comprising the steps of:

• a) providing power to a secondary battery trickle charging unit by a radio frequency power source;
• b) conditioning said power to match the input requirements of said secondary battery trickle charging unit;
• and
• c) using said conditioned power for trickle charging said secondary battery unit;
• wherein said power is provided by infrared photovoltaic cells located on the inside of the package that are driven by heat dissipated by said package.

A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of:

• a) providing power to a secondary battery trickle charging unit by a radio frequency power source;
• b) conditioning said power to match the input requirements of said secondary battery trickle charging unit;
• and
• c) using said conditioned power for trickle charging said secondary battery unit;
• wherein said power is provided by a power unit located on the inside of the package.

A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of:

• a) providing power to a secondary battery trickle charging unit by a radio frequency power source;
• b) conditioning said power to match the input requirements of said secondary battery trickle charging unit;
• and
• c) using said conditioned power for trickle charging said secondary battery unit;
• wherein said power is provided by a power unit located on the outside of the package.