POWER AMPLIFIER CIRCUIT ADJUSTING LOAD OF POWER CONTROL FOR ADJACENT CHANNEL AND NEXT TO THE ADJACENT CHANNEL

    公开(公告)号:JP2001068940A

    公开(公告)日:2001-03-16

    申请号:JP2000206604

    申请日:2000-07-07

    Applicant: MOTOROLA INC

    Abstract: PROBLEM TO BE SOLVED: To provide a power amplifier that more accurately controls power of an adjacent channel and a next to the adjacent channel transmitted by the power amplifier over a broad band. SOLUTION: This power amplifier circuit adjusts a load to control power of an adjacent channel and of a next to the adjacent channel. A power amplifier 172 amplifies an input signal to generate an amplified signal. A variable impedance network 174 provides a different impedance to an output of the power amplifier 172 in response to a load control signal. A peak detector 180 provides an instruction of a peak average ratio of the amplified signal. The peak detector 180 and a controller 184 connected to the variable impedance network 174 generate a load control signal in response to the instruction of the peak average ratio.

    Method and apparatus for providing background audio during a communication session

    公开(公告)号:AU2003293136A8

    公开(公告)日:2004-07-29

    申请号:AU2003293136

    申请日:2003-11-21

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus, locally inserts non-noise background audio information (104), such as music or other suitable information, as comfort audio information with other audio information (110), such as voice, to produce a combined audio signal (112) containing non-noise comfort audio. The combined audio signal (112) is transmitted over a communication channel such as wireline or wireless communication channel during a communication session or output locally over a speaker on a user device. The method and apparatus may locally insert non-noise background audio information (104) by selecting stored non-noise background audio information (104) from memory (102) local to a sending device (100) or selecting real time audio, such as an audio stream from a live broadcast as received by a radio, cable or television tuner.

    METHOD AND APPARATUS FOR PROVIDING BACKGROUND AUDIO DURING A COMMUNICATION SESSION

    公开(公告)号:AU2003293136A1

    公开(公告)日:2004-07-29

    申请号:AU2003293136

    申请日:2003-11-21

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus, locally inserts non-noise background audio information (104), such as music or other suitable information, as comfort audio information with other audio information (110), such as voice, to produce a combined audio signal (112) containing non-noise comfort audio. The combined audio signal (112) is transmitted over a communication channel such as wireline or wireless communication channel during a communication session or output locally over a speaker on a user device. The method and apparatus may locally insert non-noise background audio information (104) by selecting stored non-noise background audio information (104) from memory (102) local to a sending device (100) or selecting real time audio, such as an audio stream from a live broadcast as received by a radio, cable or television tuner.

    METHOD AND APPARATUS FOR PROVIDING BACKGROUND AUDIO DURING A COMMUNICATION SESSION
    4.
    发明申请
    METHOD AND APPARATUS FOR PROVIDING BACKGROUND AUDIO DURING A COMMUNICATION SESSION 审中-公开
    在通信会议期间提供背景音频的方法和装置

    公开(公告)号:WO2004062156A3

    公开(公告)日:2005-03-03

    申请号:PCT/US0337956

    申请日:2003-11-21

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus, locally inserts non-noise background audio information (104), such as music or other suitable information, as comfort audio information with other audio information (110), such as voice, to produce a combined audio signal (112) containing non-noise comfort audio. The combined audio signal (112) is transmitted over a communication channel such as wireline or wireless communication channel during a communication session or output locally over a speaker on a user device. The method and apparatus may locally insert non-noise background audio information (104) by selecting stored non-noise background audio information (104) from memory (102) local to a sending device (100) or selecting real time audio, such as an audio stream from a live broadcast as received by a radio, cable or television tuner.

    Abstract translation: 方法和装置将诸如音乐或其他合适信息的非噪声背景音频信息(104)作为舒适音频信息与诸如语音的其它音频信息(110)本地插入以产生组合音频信号(112) 包含非噪音舒适音频。 组合音频信号(112)在通信会话期间通过诸如有线或无线通信信道的通信信道发送,或者通过用户设备上的扬声器本地输出。 该方法和装置可以通过从本地到发送设备(100)的存储器(102)中选择存储的非噪声背景音频信息(104)或选择实时音频(例如, 来自广播,有线或电视调谐器接收的直播的音频流。

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