Outline of 2003 Tag Technology

This section summarizes Passive RFID tag technology innovations that the patent office believed were sufficiently novel in 2003 to issue a patent for.  For each technology, a patent is identified.  These patents have been summarized in detail in technical English in a separate Data Base Appendix document.   A dash number in the patent refers to a specific claim in that patent.  Some of the patents are listed under multiple headings and some technologies may have multiple patents.  Headings without listed patents are included for consistency with the elements of the technology Map.

 

Antennas

• ~ 10 applications.

Antenna Arrays

• ~ 10 applications.

Receive / transmit switch

• Multiple applications.

Input Attenuator / Amplifier

• Multiple applications

Demodulator

• Carrier canceling for better signal to noise ratio (6603391)( 6600905)
• Use of multiple modulators and demodulators for multiple tag frequencies (6617962)
• Plus ~ 10 applications.

Power supply

• Use of base station RF energy to power a tag (6615074)
• A charge pump power supply  (6549064)
• Plus more applications………

Processor

• None

Modulator

• Multiple applications ………..

Transmit Amplifier

• None

Packaging – basic assembly

• Multiple applications…………

Packaging –  installation considerations

• Package design to put a standoff distance between circuitry and a ferrous container (6608561)
• Method of attaching an RFID tag to a vehicle (6513220)
• Plus more ………..

Packaging – materials

• Polymers for conductors and electronic components  (6645401)
• Plus more applications………

Tag Fabrication methods

• ~ 10 applications……….

Data handling

• Fast encryption method (6510517)