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1. 发明授权

US5497372A FM multiplex broadcasting and receiving system 失效
标题翻译： FM复用广播和接收系统
公开(公告)号：US5497372A
公开(公告)日：1996-03-05
申请号：US207558
申请日：1994-03-08
申请人： Mitsuo Nankoh , Akio Inoue , Hitoshi Yokomizo , Yosikazu Tomida , Tohru Kawabata
发明人： Mitsuo Nankoh , Akio Inoue , Hitoshi Yokomizo , Yosikazu Tomida , Tohru Kawabata
IPC分类号： H04B1/16 , H04B1/20 , H04H20/00 , H04H20/28 , H04H60/13 , H04J1/14
CPC分类号： H04H20/28 , H04H60/13
摘要： An FM multiplex broadcasting and receiving system has an FM multiplex broadcast apparatus and an FM multiplex receiving apparatus. The FM multiplex broadcast apparatus has a reproducing device for reproducing, from a recording medium, an audio signal and character data associated with the audio signal recorded in the recording medium. The FM multiplex broadcast apparatus also includes a multiplex device and a frequency modulation device. The multiplex device multiplexes the audio signal with additional information such as the character data to generate a multiplex signal. The frequency modulation device frequency modulates a carrier with the multiplex signal to provide an FM multiplex broadcasting signal. The FM multiplexing receiving apparatus has a frequency demodulating device for frequency demodulating the FM multiplex broadcast signal to provide an audio signal and an additional information data signal, a displaying device displaying the additional information data signal.
摘要翻译： FM多路复用广播和接收系统具有FM多路广播装置和FM多路复用接收装置。 FM多路复用广播设备具有用于从记录介质再现与记录介质中记录的音频信号相关联的音频信号和字符数据的再现设备。 FM多路广播装置还包括多路复用装置和频率调制装置。多路复用装置将音频信号与诸如字符数据的附加信息复用以产生多路复用信号。频率调制装置利用多路复用信号对载波进行频率调制，以提供FM多路复用广播信号。 FM多路复用接收装置具有频率解调装置，用于频率解调FM多路广播信号以提供音频信号和附加信息数据信号，显示装置显示附加信息数据信号。

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