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    • 7. 发明授权
    • 데이터의 전송 대상을 선택적으로 지정하는 PTA 서비스시스템 및 그 방법
    • 用于选择性数据传输的PTA服务的系统和方法
    • KR100667000B1
    • 2007-01-10
    • KR1020060015866
    • 2006-02-17
    • 삼성전자주식회사
    • 이진석
    • H04W4/10H04W4/08H04B7/24
    • H04L65/403H04L65/1016H04L65/4038H04L65/4061H04M3/56H04M3/564H04M3/566H04W4/10
    • A method of providing a PTA service for selectively designating an object to which data will be transmitted, and a system therefor are provided to perform a selective data transmission process by enabling a transmission PTA terminal to designate a PTA terminal which will be the transmission object which will receive data transmitted by itself, thereby providing a PTA service user with a supplementary service and accordingly improving convenience of the PTA service user. A system of providing a PTA(Push To All) service for selectively designating an object to which will be transmitted comprises the followings: a transmission PTA terminal(100-1) for requesting data transmission to a designated receiving PTA terminal(100-2) of receiving PTA terminals(100-2,100-3) which are participating in a session in which the transmission PTA terminal(100-1) is participating; and a PTA server(110) which transmits data, transmitted from the transmission PTA terminal(100-1), to the designated receiving PTA terminals(100-2) in response to a request of the transmitting PTA terminal(100-1).
    • 提供用于选择性地指定要发送数据的对象的PTA服务的方法及其系统被提供以通过使传输PTA终端能够指定作为传输对象的PTA终端来执行选择性数据传输处理 将接收自身发送的数据,从而为PTA服务用户提供补充业务,从而提高PTA业务用户的便利性。 提供PTA(Push To All)服务的系统,用于选择性地指定将被发送的对象包括以下:用于向指定的接收PTA终端(100-2)请求数据传输的传输PTA终端(100-1) 接收参与传输PTA终端(100-1)正在参与的会话的PTA终端(100-2,100-3); 以及响应于发送PTA终端(100-1)的请求,将从发送PTA终端(100-1)发送的数据发送到指定的接收PTA终端(100-2)的PTA服务器(110)。
    • 8. 发明公开
    • 무선통신 채널용 회의통화 시스템 및 방법
    • 无线通信信道会议呼叫系统和方法
    • KR1020000036125A
    • 2000-06-26
    • KR1019997002158
    • 1997-09-11
    • 퀄컴 인코포레이티드
    • 킴볼로버트에이치.
    • H04M3/56
    • H04M3/56H04M3/564
    • PURPOSE: A conference calling system for a wireless communications channel is provided to preserve the quality of the received signal by retransmitting the speaker's signal without de-vocoding. CONSTITUTION: A conference calling system for a wireless communications channel is adapted for use with a channel having first, second and third participants communicating via first (34), second (20) and third (20) transmitters and receivers respectively. The system includes a circuit for receiving an encoded signal (144) from at least one of the transmitters. A second circuit determines (62) which of the participants is speaking from the received encoded signal. A third circuit is provided for re-transmitting (66) an encoded signal received from the speaking participant to the other participants. The encoded signals are variable rate speech vocoded signals in which speech is vocoded at full rate, silence is vocoded at 1/8th rate and the 1/2 and 1/4 rates are used as transitional rates. The speaker's signal is identified by examining the rate of the receiving vocoded signals. When the speaker's vocoded signal is identified, it is re-transmitted without de-vocoding to the non-speaking participants in the conference call.
    • 目的:提供用于无线通信信道的会议呼叫系统,以通过在不进行解密的情况下重传扬声器的信号来保持接收信号的质量。 构成:用于无线通信信道的会议呼叫系统适用于具有分别通过第一(34),第二(20)和第三(20)发射机和接收机进行通信的第一,第二和第三参与者的信道。 该系统包括用于从至少一个发射机接收编码信号(144)的电路。 第二电路确定(62)从接收到的编码信号中哪个参与者正在说话。 提供第三电路用于将从说话参与者接收的编码信号重新发送(66)到其他参与者。 编码的信号是可变速率语音信号,其中语音以全速率声码化,静音以1/8速率声码,1/2和1/4速率用作过渡速率。 通过检查接收到的声码信号的速率来识别扬声器的信号。 当扬声器的声码信号被识别时,在电话会议中不传呼的情况下被重新发送到不说话的参与者。