发明名称 |
Image data signal compression/transmission method and image data signal compression/transmission system |
摘要 |
An image signal compression transmission system for transmitting and receiving a compressed image signal, having a transmitter section which entropy codes digitized image data for transmission, a transmission channel through which entropy-coded codes sent from said transmitter section are transmitted, and a receiver section which decodes said entropy-coded codes received from said transmission channel and derives an original digital image signal. In the transmitter section, digital image data is entropy coded. The entropy-coded codes are transmitted to the receiver section through the transmission channel. In the receiver section, the received codes are entropy code decoded at a decoding speed corresponding to a transmission rate on the transmission channel. Coefficient codes derived by the decoding are stored into a memory at the same speed as the decoding speed. Then, the coefficient codes are read from the memory at a speed different from the decoding speed, but at the same speed as a signal processing rate in a signal processing system subsequent to the memory.
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申请公布号 |
US5815600(A) |
申请公布日期 |
1998.09.29 |
申请号 |
US19950517585 |
申请日期 |
1995.08.22 |
申请人 |
HITACHI DENSHI KABUSHIKI KAISHA |
发明人 |
SANO, SEIICHI;USUI, SHUJI;MIYASHITA, ATSUSHI;OONAMI, YUUICHI;TANAKA, TAKAYUKI;WATANABE, RYU |
分类号 |
G06T9/00;H03M7/40;H04B14/04;H04N1/41;H04N7/26;H04N7/30;H04N7/50;(IPC1-7):G06K9/36 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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