专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4207529A Radio receiver 失效
标题翻译：无线电接收机
公开(公告)号：US4207529A
公开(公告)日：1980-06-10
申请号：US783060
申请日：1977-03-30
申请人： Yuji Amaya , Tatsuo Ito
发明人： Yuji Amaya , Tatsuo Ito
IPC分类号： H03J5/02 , H03J7/28 , H04B1/10 , H04B1/28 , H04B1/26 , H04B1/32
CPC分类号： H04B1/0092 , H03J5/0245 , H03J7/28 , H04B1/005 , H04B1/10 , H04B1/28
摘要： An AM/FM receiver provided with a frequency divider for frequency dividing the output frequency of a local oscillator to provide a count output which starts with "1" at the lower limit of a receiving frequency band and thereafter increases its count value for each constant frequency band (as the receiving frequency band is searched), a digital setter for setting a desired receiving frequency, and a comparator supplied with the outputs from the frequency divider and the digital setter to produce an output for gradually increasing or decreasing the output frequency of the local oscillator until the outputs from the frequency divider and the comparator come to coincide with each other. A desired broadcasting wave is automatically tuned with such a simple construction.
摘要翻译：具有分频器的AM / FM接收机，用于对本地振荡器的输出频率进行分频，以提供在接收频带下限以“1”开始的计数输出，然后增加每个恒定频率的计数值频带（作为接收频带被搜索），用于设置所需接收频率的数字设定器，以及提供有来自分频器和数字设定器的输出的比较器，以产生用于逐渐增加或减小输出频率的输出本地振荡器，直到分频器和比较器的输出相互重合。用这种简单的结构自动调谐所需的广播波。

2. 发明授权

US4004232A Radio receiver tuning control system 失效
标题翻译：无线电接收机调谐控制系统
公开(公告)号：US4004232A
公开(公告)日：1977-01-18
申请号：US643641
申请日：1975-12-23
申请人： Yuji Amaya
发明人： Yuji Amaya
IPC分类号： H03J5/02 , H03J7/06 , H03J7/28 , H04B1/32
CPC分类号： H03J7/28 , H03J5/0245 , H03J5/029 , H03J7/06
摘要： A radio receiver tuning control system automatically selects a desired station through digital operation. A counting value based on the local oscillating frequency signal of the local oscillator of a receiver is compared, digit by digit, with a value corresponding to a specified frequency signal of a predetermined desired station. The local oscillator is controlled in order to maintain coincidence between the counting value and the specified value in accordance with the comparison result.
摘要翻译：无线电接收机调谐控制系统通过数字操作自动选择所需的站。基于接收机的本地振荡器的本地振荡频率信号的计数值逐位地与对应于预定期望站的指定频率信号的值进行比较。控制本地振荡器，以便根据比较结果保持计数值和指定值之间的一致性。

3. 发明授权

US4015237A Vehicle alarm system 失效
标题翻译：车辆报警系统
公开(公告)号：US4015237A
公开(公告)日：1977-03-29
申请号：US696648
申请日：1976-06-16
申请人： Masayoshi Takatani , Yuji Amaya
发明人： Masayoshi Takatani , Yuji Amaya
IPC分类号： G08B25/00 , B60R16/02 , B60R16/037 , G08B23/00 , G08B19/00
CPC分类号： B60R16/0373
摘要： A vehicle alarm system provides an audible alarm in the audio reproduction system of a vehicle when an abnormal condition is detected in an operating part of the vehicle. A sensor at each monitored operating part detects an abnormal condition occurring thereat and produces an abnormal condition signal when detecting such a condition. The abnormal condition signals from the sensors are supplied as inputs to an alarm signal supply circuit which produces alarm signals having different frequencies. A switching circuit switches the audio reproduction system from audio signals to an alarm signal upon the receipt of an abnormal condition signal from a sensor. The alarm signal supply circuit then supplies an alarm signal to the audio frequency amplifier of the audio reproduction system. When a plurality of sensors detect abnormal conditions simultaneously, a priority sequence judging circuit determines the degree of importance of each alarm signal and the priority sequence of the abnormal condition signals.
摘要翻译：当在车辆的操作部分中检测到异常情况时，车辆警报系统在车辆的音频再现系统中提供声音报警。在每个被监视的操作部分的传感器检测到其中发生的异常状况，并在检测到这种状况时产生异常状态信号。来自传感器的异常状态信号作为输入提供给产生具有不同频率的报警信号的报警信号供给电路。当从传感器接收到异常状态信号时，切换电路将音频再现系统从音频信号切换到报警信号。然后，报警信号供应电路向音频再现系统的音频放大器提供报警信号。当多个传感器同时检测异常情况时，优先顺序判断电路确定每个报警信号的重要程度和异常状态信号的优先顺序。

4. 发明授权

US4053838A Radio receiver 失效
标题翻译：无线电接收机
公开(公告)号：US4053838A
公开(公告)日：1977-10-11
申请号：US643640
申请日：1975-12-23
申请人： Yuji Amaya
发明人： Yuji Amaya
IPC分类号： H03J5/02 , H03J7/08 , H03J7/26 , H04B1/34
CPC分类号： H03J7/26 , H03J5/0218 , H03J7/08
摘要： The tuning circuit of an automatically tuned radio receiver comprises a semiconductor variable capacitance element and is supplied with control voltage from a voltage memory element. The voltage memory element is controlled in the polarity of input voltage and feeding time by a search control circuit and thereby its output voltage level varies upward or downward until the tuning circuit tunes to the selected broadcasting frequency. When the tuning circuit tunes to the broadcasting frequency, the search operation is suspended and the receiver is in the receiving condition. During this time, the voltage memory element stably maintains the output voltage memorized at the tuning period. The voltage memory element is controlled by the AFC voltage during the receiving condition and operates as an element of the AFC loop.
摘要翻译：自动调谐的无线电接收机的调谐电路包括半导体可变电容元件，并从电压存储元件提供控制电压。电压存储元件通过搜索控制电路被控制在输入电压和馈送时间的极性，从而其输出电压电平向上或向下变化，直到调谐电路调谐到所选择的广播频率。当调谐电路调谐到广播频率时，搜索操作被暂停，接收机处于接收状态。在此期间，电压存储元件稳定地保持存储在调谐周期的输出电压。电压存储元件在接收状态下由AFC电压控制，并作为AFC回路的元件工作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式