This is probably what you are referring to, Shoto.

This is an 'up-as-you-win' betting system. With Oscar's Grind, you bet the same amount following a loss and increase your bet by one unit following a win. As the system progresses, the caveat is that you should never bet more than what you need to recoup prior losses plus a one unit profit. This system first appeared in Allan Wilson's classic book "The Casino Gambler's Guide".