发明授权
- 专利标题: Multi-channel PCM music broadcasting system
- 专利标题(中): 多声道PCM音乐播放系统
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申请号: US250721申请日: 1988-09-29
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公开(公告)号: US4922483A公开(公告)日: 1990-05-01
- 发明人: Hirokazu Kobayashi
- 申请人: Hirokazu Kobayashi
- 申请人地址: JPX Tokyo
- 专利权人: Kabushiki Kaisha Kenwood
- 当前专利权人: Kabushiki Kaisha Kenwood
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-247994 19871002
- 主分类号: H04J4/00
- IPC分类号: H04J4/00
摘要:
In multi-channel PCM music broadcasting system, a plurality of blocks are time division multiplexed, each block having at least one music channel for a PCM formatted music signal and having an independent operation mode information. The time division multiplexed signal modulates a carrier, and a plurality of time division multiplexed signals each having a frequency shift from the carrier are frequency division multiplexed for transmission. The operation mode information for the plurality of blocks is collectively inserted in a time division multiplexed frame, an operation mode information for the plurality of time division multiplexed signals each having a frequency shift is exchanged among a plurality of time division multiplexing units, and both the operation mode informations are commonly inserted in the time division multiplexed frame for transmission. Upon designation of a music channel at a receiver side, both the operation mode informations are referred to to select a particular frequency and block including the designated music channel.
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