Obviousness

I cannot perform a comprehensive obviousness analysis under 35 U.S.C. § 103 as requested because the provided patent text does not include specific prior art references (e.g., patent numbers, publication numbers, or named documents) with their disclosures. The "Prior art keywords" section lists general terms such as "card," "payment," "user," "information," and "limited," but these are not specific documents that can be combined to establish obviousness.

The "BACKGROUND OF THE INVENTION" section of US10628820B2 describes existing technologies, including:

• "A first type of credit card is a conventional, standard piece of plastic with a magnetic strip."
• "Another type of credit card device employs the use of a smart integrated circuit chip."
• "A different type of credit card device in circulation employs radio frequency identification (“RFID”)."

While these descriptions acknowledge the existence of such technologies as general prior art concepts, they do not provide the detailed disclosures from specific, identifiable prior art documents necessary to conduct an obviousness analysis by combining their teachings to arrive at the claimed invention. Without concrete prior art documents, it is not possible to identify specific combinations of references or articulate a motivation to combine them in the manner required for a § 103 analysis.