This paper presents a novel chaotic digital commu-by the information to be transmitted, are sent to the receiver. nication system that uses an extended Bernoulli map (EBM). The information sent to the receiver can be demodulated by We use the discontinuous point of EBM as information carrier. a correlation detector. This method can increase the number Chaotic signals generated with EBM in which the discontinuous points are modulated by the information to be transmitted are of bits to be transmitted at a htme because we can increase sent to the receiver. The information transmitted to the receiver the number of discontinuous points for modulation. Through can be demodulated by a correlation detector. This method computer simulation, we verify the performance of this method can increase the number of transmittable information bits by using bit error rate (BER).increasing the number of discontinuous points for modulation.We show the performance of this method using BER.II. EXTENDED BERNOULLI MAP