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    • 7. 发明授权
    • Method and apparatus for controlling audio output
    • 用于控制音频输出的方法和装置
    • US09414174B2
    • 2016-08-09
    • US14013319
    • 2013-08-29
    • Samsung Electronics Co., Ltd.
    • Hanho KoJeheon Park
    • H04R19/01H04R29/00H03G1/02H04R5/04H04R3/00H04R5/033
    • H04R29/001H03G1/02H04R3/00H04R5/033H04R5/04
    • A method and portable terminal for automatically controlling an output volume of audio output of a head phone when the head phone is connected to a portable terminal are provided. The method of controlling an audio output in a portable terminal, includes outputting a test audio signal to a head phone for a preset playback time when the head phone is connected to the portable terminal; collecting neighboring noise interval information and impedance interval information of the head phone while the test audio signal is output to the head phone; determining impedance of the head phone based on the neighboring noise interval information and the impedance interval information; determining a gain of an audio signal based on the determined impedance; and amplifying the audio signal in proportion to the determined gain, and outputting the amplified audio signal to the head phone.
    • 提供了一种用于在头戴式耳机连接到便携式终端时自动控制头戴式耳机的音频输出的输出音量的方法和便携式终端。 控制便携式终端中的音频输出的方法包括当头戴式电话连接到便携式终端时,将测试音频信号输出到头戴式电话以进行预设播放时间; 在测试音频信号被输出到头戴式电话的同时收集头戴式耳机的相邻噪声间隔信息和阻抗间隔信息; 基于所述相邻噪声间隔信息和所述阻抗间隔信息来确定所述头戴式电话机的阻抗; 基于所确定的阻抗确定音频信号的增益; 并根据所确定的增益放大音频信号,并将放大的音频信号输出到头戴式电话。
    • 8. 发明授权
    • Receive attenuation system for trainline communication networks
    • 接收火车线通信网络的衰减系统
    • US09270335B2
    • 2016-02-23
    • US13974695
    • 2013-08-23
    • Electro-Motive Diesel, Inc.Secure Communications Systems Inc.
    • Mark Alan FanaraNeil Keith Habermehl
    • B61L15/00H04B3/60H03G1/02H03G3/30
    • H04B3/60H03G1/02H03G3/3005H04B3/02H04B3/54H04B2203/5425
    • A receive attenuation system for a trainline communication system utilizing an intra-consist electrical cable has an analog front end amplifier, a trainline communication processor, an adjustable attenuator, and a gain controller. The trainline communication processor is configured to generate a receive gain control signal configured to control receive gain of the analog front end amplifier. The adjustable attenuator is capable of being coupled to the intra-consist electrical cable and configured to variably attenuate signals received from the intra-consist electrical cable before transmitting the signals to the analog front end amplifier. The gain controller is coupled to the adjustable attenuator and configured to detect the receive gain control signal generated by the trainline communication processor, determine a supplemental attenuation control value based on the detected receive gain control signal, and control the adjustable attenuator according to the supplemental attenuation control signal.
    • 用于使用组内电缆的列车通信系统的接收衰减系统具有模拟前端放大器,列车通信处理器,可调衰减器和增益控制器。 车线通信处理器被配置为产生被配置为控制模拟前端放大器的接收增益的接收增益控制信号。 可调衰减器能够耦合到组内电缆并且被配置为在将信号发送到模拟前端放大器之前可变地衰减从组内电缆接收的信号。 所述增益控制器耦合到所述可调衰减器并且被配置为检测由所述列车通信处理器产生的接收增益控制信号,基于所检测到的接收增益控制信号确定补充衰减控制值,并根据所述补充衰减来控制所述可调衰减器 控制信号。