3. The transaction system of claim 1, wherein said plurality of contacts comprise a predefined set of contacts associated with an operating protocol, and at least one other contact to which said mode signal is provided.
United States Patent 6,199,128 Inventors: Sarat; Jean-Marc (Belmont, CA)
2. The transaction system of claim 1, wherein said peripheral device further includes a clock terminal, that is connectable to one of the contacts of said user card.
United States Patent 6,199,128 Inventors: Sarat; Jean-Marc (Belmont, CA)
What is claimed is:
1. A user card transaction system, comprising:
a user card containing a microprocessor and associated memory, and a plurality of contacts for transferring data to and from said microprocessor and memory;
BACKGROUND OF THE INVENTION 7th paragraph
BACKGROUND OF THE INVENTION 6th paragraph
BACKGROUND OF THE INVENTION 5th paragraph
In many systems which currently employ smart cards, the number of users can be quite large. For example, in an electronic banking system, a considerable number of customers might be expected to access an automated teller machine each day. Consequently, the cost of the reader is amortized over a sufficient number of transactions that it can be readily justified by the provider of the services.
United States Patent 6,199,128 Inventors: Sarat; Jean-Marc (Belmont, CA)
BACKGROUND OF THE INVENTION 4th paragraph
Due to the need to comply with the published standards, a conventional card reader can turn out to be a relatively expensive item of equipment. For instance, the ISO standard requires that different respective signals be applied to the five designated contacts on the card in a specific sequence at predetermined times during the power-up procedure. As a result, the reader must include a controller which supervises the application and timing of these signals, thereby adding to its cost.
BACKGROUND OF THE INVENTION 3rd paragraph
BACKGROUND OF THE INVENTION 2nd paragraph
BACKGROUND OF THE INVENTION 1st paragraph