Abstract: A communicating apparatus which stores communication obstacle information in the case where a communication obstacle occurs. The apparatus comprises a memory to store communication information and a managing unit to manage the information stored in the memory in accordance with information stored in a communication partner, wherein the managing unit processes the information stored in the memory in accordance with the recovery of the communication obstacle or the number of communication obstacles.

Abstract: Digital data for generating a signal having a prescribed waveform is stored beforehand in the memory on the transmitting side of a communication system. The prescribed waveform is one obtained by combining signals having mutually different frequencies corresponding to the digits of a spread-spectrum code comprising a plurality of digits. When transmission data is inputted, the system generates, for every bit of data, a signal waveform corresponding to the value of the bit, based upon the data stored in the memory. The generated signal is a signal which has undergone spreading. This signal is placed upon a carrier wave and then sent to a transmission line. Like the transmitting side, the receiving side possesses digital data for generating a signal having a prescribed waveform. When a signal is received, the system generates a signal based upon the data possessed, multiplies this by the received signal and effects a conversion into a signal having an intermediate frequency.