Patent ID: 6085072
Filing Date: 2000-07-04
Classification: H04B

Abstract:
A radio communication apparatus having an input buffer and an output buffer, and wherein said radio communication apparatus operates in a digital format, converts an audio signal to digital data, writes said digital data to said input buffer for every frame unit, reads and codes said digital data for plural frame units, and RF modulates and transmits said digital data, and wherein said radio communication apparatus demodulates a received signal, decodes a demodulated signal, writes decoded data to said output buffer for every frame unit, reads and converts said decoded data to an analog signal, and generates sound, said radio communication apparatus comprisingsignal processing means operating so that a timing of an edge between plural frames for writing into said input buffer is set before a predetermined time from a timing of an edge between plural frames for writing into said output buffer,wherein said signal processing means operates to set a start timing of an echo canceling just after a start timing of a frame of said input buffer, to set a start timing of a decoding lust after an end timing of said echo canceling, and to set a start timing of a coding just after an end timing of said decoding.