Patent ID: 11949817
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. The multipoint phone connection system according to claim 5, wherein, when the second communication network terminal apparatuses of the N1-th point and the N2-th point are selected by the processing circuitry, the processing circuitry is configured to further generate and output a bit stream, as a bit stream for each second communication network terminal apparatus of a point that is not selected, by obtaining a first decoded sound signal by decoding the monaural code CMMN1 that is the code representing a sound signal of the N1-th point by the first decoding scheme, t-e-t-obtaining a second decoded sound signal by decoding the monaural code CMMN2 that is the code representing a sound signal of the N2-th point by the first decoding scheme, obtaining a mixed sound signal by mixing the first decoded sound signal and the second decoded sound signal, obtaining a monaural code CTMN1N2 by coding the mixed sound signal by the first coding scheme, the bit stream including, as a code representing a sound signal, the monaural code CTMN1N2 obtained from the mixed sound signal.