Patent ID: 8629757

Claim:
A processing system for an IC card comprising the IC card executing processing in response to a command, and a processing apparatus for the IC card, wherein the IC card comprises: a first transmission and reception section configured to transmit and receive data of a frame that includes no phase transition time, start of frame, character, and end of frame to and from the processing apparatus; a first storage section configured to store in association with information indicating whether validation information is added to the data to be communicated to the processing apparatus, length of the no phase transition time, or length of logical “0” of the start of frame; and a control section configured to control the length of the no phase transition time, or the length of logical “0” of the start of frame based on the data to be transmitted to the processing apparatus, and wherein the processing apparatus comprises: a second transmission and reception section configured to transmit and receive data of a frame that includes no phase transition time, start of frame, character, and end of frame to and from the IC card; a second storage section configured to store in association with information indicating whether validation information is added to the data communicated by the IC card, length of the no phase transition time, or length of logical “0” of the start of frame; and a recognition section configured to recognize information indicating whether validation information is added to the data communicated by the IC card, based on the length of the no phase transition time, or the length of logical “0” of the start of frame.