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公开(公告)号：US07787528B2
公开(公告)日：2010-08-31
申请号：US11548991
申请日：2006-10-12
摘要： Disclosed is a semiconductor IC device using a low-price oscillator, which is capable of bidirectional communication with a host and features a low price. In bidirectional communication between a host and a device, the device comprises a synchronization establishment unit, a frequency difference detector, a frequency generator, and an oscillator providing a reference signal. The synchronization establishment unit to which an output signal from the host is inputted outputs a received signal, a synchronization establishment signal and a reception data. The frequency difference detector detects a frequency difference between a received signal and a transmitting signal, and outputs a frequency coordination signal to the frequency generator. The number of frequency division of the frequency generator is controlled by the frequency coordination signal, and the frequency generator is capable of matching the frequency of the transmitting signal which is an output signal with the frequency of the received signal.
摘要翻译： 公开了一种使用低价振荡器的半导体IC器件，其能够与主机进行双向通信并且具有低价格。 在主机和设备之间的双向通信中，设备包括同步建立单元，频差检测器，频率发生器和提供参考信号的振荡器。 输入来自主机的输出信号的同步建立单元输出接收信号，同步建立信号和接收数据。 频率差检测器检测接收信号和发送信号之间的频率差，并将频率协调信号输出到频率发生器。 频率发生器的分频数由频率协调信号控制，频率发生器能够将作为输出信号的发送信号的频率与接收信号的频率进行匹配。
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公开(公告)号：US20070153129A1
公开(公告)日：2007-07-05
申请号：US11548991
申请日：2006-10-12
IPC分类号： H04N5/268
摘要： Disclosed is a semiconductor IC device using a low-price oscillator, which is capable of bidirectional communication with a host and features a low price. In bidirectional communication between a host and a device, the device comprises a synchronization establishment unit, a frequency difference detector, a frequency generator, and an oscillator providing a reference signal. The synchronization establishment unit to which an output signal from the host is inputted outputs a received signal, a synchronization establishment signal and a reception data. The frequency difference detector detects a frequency difference between a received signal and a transmitting signal, and outputs a frequency coordination signal to the frequency generator. The number of frequency division of the frequency generator is controlled by the frequency coordination signal, and the frequency generator is capable of matching the frequency of the transmitting signal which is an output signal with the frequency of the received signal.
摘要翻译： 公开了一种使用低价振荡器的半导体IC器件，其能够与主机进行双向通信并且具有低价格。 在主机和设备之间的双向通信中，设备包括同步建立单元，频差检测器，频率发生器和提供参考信号的振荡器。 输入来自主机的输出信号的同步建立单元输出接收信号，同步建立信号和接收数据。 频率差检测器检测接收信号和发送信号之间的频率差，并将频率协调信号输出到频率发生器。 频率发生器的分频数由频率协调信号控制，频率发生器能够将作为输出信号的发送信号的频率与接收信号的频率进行匹配。
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