发明名称 |
Music information transmission system |
摘要 |
A music information transmission system in which a music symbol on a music sheet is quantized into a digital signal by inputting that music symbol by using a key board. The digital signal is assembled into a packet, which is multiplexed on a blanking period of a television signal, and is transmitted over the air. At a reception side, the packet is separated from a picture signal, and is stored in a memory. A music player reads out the memory, and decodes the digital signal in the memory. The decoded signal operates the music player to play music. Thus, music information may be transmitted in a very narrow frequency band as compared with a conventional PCM system which quantizes an analog sound signal into a digital signal. The presnt invention is useful for instance for playing background music in a teletext or a character transmission system multiplexed with a television signal.
|
申请公布号 |
US4535356(A) |
申请公布日期 |
1985.08.13 |
申请号 |
US19820451552 |
申请日期 |
1982.12.20 |
申请人 |
NIPPON TELEVISION NETWORK CORPORATION;OKI ELECTRIC INDUSTRY CO., LTD.;KEIO ELECTRONIC LABORATORY CORPORATION |
发明人 |
NAKAGAWA, KOICHI;SUGIMORI, YOSHIO;KIMATA, YOSHIHIDE;ARAKI, YOSAI;ARAI, TOMOJI |
分类号 |
H04N7/088;(IPC1-7):H04N7/04;H04N7/08 |
主分类号 |
H04N7/088 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|