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1. 发明授权

US06552753B1 Method and apparatus for maintaining uniform sound volume for televisions and other systems 失效
标题翻译：用于维持电视和其他系统的均匀音量的方法和装置
公开(公告)号：US06552753B1
公开(公告)日：2003-04-22
申请号：US09692493
申请日：2000-10-19
申请人： Ilya Zhurbinskiy , Boris Yankilevich
发明人： Ilya Zhurbinskiy , Boris Yankilevich
IPC分类号： H04N560
CPC分类号： H04N5/60 , H04N21/4221 , H04N21/4852
摘要： Apparatus for maintaining uniform volume in television or audio system forms part of television set and contains an eight-bit DSP having a CPU, RAM and ROM memory, an analog digital convertor, a voltmeter and a timer and switch, a “SAVE” button. When the user begins listening to a first channel, the user experiments with the volume desired and once the user has it the user pushes the “SAVE” button on the TV set which activates the voltmeter to measure the volume of the tension on the output of the sound amplifier, and correspondingly the loudness level, at a number of intervals to capture variations occurring during the show. DSP calculates a mean volume of the tension which is then transmitted to the RAM and retained in memory. The DSP switches off the apparatus. When the user subsequently switches to a second channel the apparatus switches on and the voltmeter measures the volume of the tension of the second channel at a number of intervals, the digital signal processor calculates the mean level and once again transmits that mean volume of the tension level to the RAM. The DSP calculates the difference between the mean volume of the tension of the saved tension and that of the second channel. If there is a difference in volumes of the tension level, the DSP sends a signal to the apparatus to adjust the volume of the tension until the difference becomes zero. In preferred embodiment, voltmeter measurement is first done crudely, then precisely.
摘要翻译：用于在电视或音频系统中保持均匀体积的装置构成电视机的一部分，并且包含具有CPU，RAM和ROM存储器的八位DSP，模拟数字转换器，电压表和定时器和开关，“保存”按钮。当用户开始收听第一个频道时，用户用所需音量进行实验，一旦用户拥有用户按下电视机上的“保存”按钮，激活电压表即可测量输出的张力声音放大器和相应的响度级别，以多个间隔捕获在展示期间发生的变化。 DSP计算张力的平均体积，然后传递给RAM并保留在存储器中。 DSP关闭设备。当用户随后切换到第二通道时，设备开启并且电压表以多个间隔测量第二通道的张力的体积，数字信号处理器计算平均水平，并再次传递平均体积的张力级到RAM。 DSP计算得到的张力的平均体积与第二个通道的张力的平均体积之差。如果张力水平的体积存在差异，则DSP向设备发送一个信号，以调节张力的体积直到差值变为零。在优选实施例中，首先进行电压表测量，然后精确地进行。

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