Invention Grant
US07710948B2 PCM-based data transmission system and voice/data communication switching method
失效
基于PCM的数据传输系统和语音/数据通信切换方法
- Patent Title: PCM-based data transmission system and voice/data communication switching method
- Patent Title (中): 基于PCM的数据传输系统和语音/数据通信切换方法
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Application No.: US11071238Application Date: 2005-03-04
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Publication No.: US07710948B2Publication Date: 2010-05-04
- Inventor: Takao Hosokubo
- Applicant: Takao Hosokubo
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2004-059988 20040304
- Main IPC: H04L12/66
- IPC: H04L12/66 ; H04J1/02
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.
Public/Granted literature
- US20050195803A1 PCM-based data transmission system and voice/data communication switching method Public/Granted day:2005-09-08
Information query
