Patent Number: 7,710,948

Title: PCM-based data transmission system and voice/data communication switching method

Abstract: A transmitting terminal creates a data PCM stream in which data is recognized as a PCM stream by placing a prefixed idle code string before data to transmit and a postfixed idle code string after the data to transmit. By switching between a voice PCM stream and a data PCM stream, PCM steam is transmitted to a receiving terminal. The receiving terminal, when detecting the prefixed idle code string from a received PCM stream, receive the data from the transmitting terminal until detecting the postfixed idle code string.

Inventors: Hosokubo; Takao (Shizuoka, JP)

Assignee: NEC Corporation

International Classification: H04L 12/66 (20060101); H04J 1/02 (20060101)

Expiration Date: 5/04/12018