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    • 6. 发明申请
    • Bi-directional battery charging for coupled electronic devices
    • 双向电池充电用于耦合电子设备
    • US20090179612A1
    • 2009-07-16
    • US12008499
    • 2008-01-11
    • Itay ShermanTamir Demri
    • Itay ShermanTamir Demri
    • H02J7/00
    • H02J7/0054G06F1/1626G06F1/1632G06F1/263H02J7/0013H04M1/6041H04M1/72527Y02D70/122
    • A system for bi-directional battery charging, including a first electronic device, including a first rechargeable battery, for providing power to the first electronic device, and a first battery charger, and a second electronic device, including a second rechargeable battery, for providing power to the second electronic device, a second battery charger, a voltage boost that receives an input voltage from the first rechargeable battery and is selectively enabled to either up-convert the input voltage as input to the second battery charger, or else to passively pass the input voltage to the second battery charger; and a controller for programmatically controlling the first and the second battery chargers and the voltage boost, wherein the second electronic device attaches to the first electronic device to operate in combination therewith, and wherein the controller is programmed to decide, based on the voltages of the first and the second rechargeable batteries: (i) whether to supply power to the second electronic device from the first or second rechargeable battery, (ii) whether to charge the second rechargeable battery from the first rechargeable battery, and (iii) whether to enable or disable the voltage boost. A method is also described and claimed.
    • 一种用于双向电池充电的系统,包括用于向第一电子设备提供电力的第一电子设备和第一电池充电器,以及包括第二可充电电池的第二电子设备,用于提供 对第二电子设备的电力,第二电池充电器,接收来自第一可再充电电池的输入电压的升压,并且被选择性地使得能够将作为输入的输入电压上变频到第二电池充电器,或被动地通过 第二电池充电器的输入电压; 以及用于以编程方式控制所述第一和第二电池充电器和所述电压升高的控制器,其中所述第二电子设备附接到所述第一电子设备以与之组合操作,并且其中所述控制器被编程为基于所述电压 第一和第二可充电电池:(i)是否从第一或第二可充电电池向第二电子设备供电,(ii)是否从第一可充电电池对第二可再充电电池充电,以及(iii)是否启用 或禁用升压。 还描述并要求保护的方法。
    • 10. 发明授权
    • System and method for reducing power consumption in a wireless device
    • 用于降低无线设备功耗的系统和方法
    • US08498678B2
    • 2013-07-30
    • US12169762
    • 2008-07-09
    • Yossi TsfatyItay Sherman
    • Yossi TsfatyItay Sherman
    • H04M1/00
    • H04W52/028H04B1/46Y02D70/144Y02D70/40
    • A wireless transceiver is provided for transmitting and receiving audio data, comprising: a microphone configured to generate a digital audio signal that includes the audio data, based on a received sound sampled into digital format; a voice detection circuit configured to detect the presence of voice activity in the audio data, and to generate a voice detection signal indicating whether the voice activity is present in the audio data; a transceiver circuit configured to transmit the audio data over a wireless medium; and a control circuit configured to control transmission of the audio data over the wireless medium by the transceiver circuit, based on the voice detection signal. This allows saving of transmission power since no transmission is done during the silence periods. The digital audio signal is at least one of a pulse code modulated signal without compression, and a Bluetooth signal.
    • 提供了一种用于发送和接收音频数据的无线收发器,包括:麦克风,被配置为基于被采样为数字格式的接收声音来生成包括所述音频数据的数字音频信号; 语音检测电路,被配置为检测音频数据中的语音活动的存在,并产生指示语音活动是否存在于音频数据中的语音检测信号; 收发器电路,被配置为通过无线介质发送音频数据; 以及控制电路,被配置为基于所述语音检测信号,通过所述收发器电路来控制所述无线介质上的所述音频数据的传输。 这样可以节省发送功率,因为​​在静默期间不进行发送。 数字音频信号是没有压缩的脉冲编码调制信号和蓝牙信号中的至少一个。