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公开(公告)号：US06925290B2
公开(公告)日：2005-08-02
申请号：US09995586
申请日：2001-11-29
CPC分类号： H03J1/0075 , H04B1/06
摘要： A radio receiver embodying the present invention comprises, a front-end circuit for selecting a broadcasting wave of a certain frequency from broadcasting waves received, a memory for storing a channel registering table, tuning key, and a control circuit. A channel registering table has a plurality of channels registered therein, and a frequency and register time for each channel are written thereon. The control circuit specifies a channel of which register time is closest to time of the depression of the key out of a plurality of channels registered in the table upon the depression of the key to command tuning operation of the channel to the front-end circuit. Thus, the radio receiver can be realized wherein the device body is compact, and even when a listener does not remember a channel registered, a desired channel can be tuned in with easy manipulation for a short period of time.
摘要翻译： 体现本发明的无线电接收机包括：前端电路，用于从接收的广播波中选择一定频率的广播波，存储信道登记表的存储器，调谐键和控制电路。 信道登记表具有登记在其中的多个信道，并且每个信道的频率和寄存器时间被写入其上。 控制电路指定在按下键以指示将频道调谐到前端电路的操作的情况下，登记时间最接近登记在表中的多个频道中的键的时间的频道。 因此，可以实现无线电接收机，其中设备主体是紧凑的，并且即使当听众不记住登记的频道时，可以在短时间内容易地操纵所需的频道。
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公开(公告)号：US06904272B2
公开(公告)日：2005-06-07
申请号：US09998779
申请日：2001-12-03
摘要： The invention provides a digital broadcast receiver for receiving broadcast waves comprising multiplexed broadcast signals of a plurality of channels including a main channel and a subchannel. The receiver comprises demodulator circuits for demodulating received data of one of the channels selected and outputting the resulting data, a memory capable of storing received data as to a program transmitted on the subchannel, and a controller for writing the received data as to the program transmitted on the subchannel to the memory while updating the received data at all times, and reading the received data stored in the memory from the head of the program and feeding the read data to the demodulator circuits upon a changeover from the main channel to the subchannel. When the main channel is changed over to the subchannel, the program broadcast on the subchannel can be listened to always from the beginning.
摘要翻译： 本发明提供了一种用于接收广播波的数字广播接收机，其包括包括主频道和子信道的多个频道的多路广播信号。 接收机包括解调器电路，用于解调所选择的一个信道的接收数据，并输出结果数据;存储器，其能够存储关于在子信道上发送的节目的接收数据;以及控制器，用于写入接收到的数据， 在一直更新接收到的数据的同时在子信道上存储到存储器中，并且从程序的头部读取存储在存储器中的接收数据，并且在从主通道切换到子通道时将读取的数据馈送到解调器电路。 当主通道切换到子通道时，可以始终从一开始就在子通道上广播程序。
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公开(公告)号：US07003053B2
公开(公告)日：2006-02-21
申请号：US09996765
申请日：2001-11-30
IPC分类号： H04L25/00
CPC分类号： H04H20/22
摘要： The invention provides a digital broadcast receiver which comprises a tuner 1 for selecting the desired broadcasting station from among a plurality of broadcasting stations, a demodulator circuit 3 for decoding a plurality of bit frames constituting the digital broadcast of the selected station, and a control circuit 4 for controlling the operation of the tuner and the demodulator circuit. With one broadcasting station selected, the control circuit 4 stops decoding at least one of the bit frames, and searches for other broadcasting station or stations of satisfactory reception condition utilizing free time resulting from stopping decoding. Upon the reception condition becoming impaired, the station being received is changed over to the station of satisfactory reception condition by the control circuit 4.
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