System and method for transmitting data

A device configured to display an enhanced optical code pattern for providing a graphical representation of encoded authorisation data, said optical code pattern comprising a first part and a second part, said device comprising:

• display logic configured to display non-varying elements to form said first part and a time varying part to form said second part;
• and
• variance logic configured to vary said second part in a regular fashion which enables said encoded authorisation data to be conveyed to a suitably adapted optical reader.

An optical code pattern reader configured to read an enhanced optical code pattern which provides a graphical representation of encoded authorisation data, said optical code pattern comprising a first part and a second part, said optical code pattern reader comprising:

• a static element reading unit configured to read static elements forming said first part of said optical code pattern and convert read data to said encoded authorisation data;
• and
• a time-varying element reading unit configured to read time varying elements forming said second part of said optical code pattern and convert read data to said encoded authorisation data.

A method of reading an enhanced optical code pattern which provides a graphical representation of encoded authorisation data, said optical code pattern comprising a first part and a second part, said method comprising:

• reading static elements forming said first part of said optical code pattern and converting read data to said encoded authorisation data;
• and
• reading time varying elements forming said second part of said optical code pattern and converting read data to said encoded authorisation data.