发明名称 |
ZWISCHENBILD-KODIERVORRICHTUNG |
摘要 |
<p>In interframe coding apparatus in which an input signal is encoded by an interframe coder and its output code is written in a buffer memory, and is read out therefrom at a constant bit rate, a variable characteristics comb filter is provided at a stage preceding the interframe coder. The period of the frequency characteristics of the comb filter is selected to be the frame period of the input signal. By a controller, the occupancy of the buffer memory is detected to control either one or both of the attenuation in the elimination band and high frequency cut-off characteristics of the comb filter detected value to prevent an overflow from the buffer memory.</p> |
申请公布号 |
DE2645016(A1) |
申请公布日期 |
1977.04.07 |
申请号 |
DE19762645016 |
申请日期 |
1976.10.06 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE PUBLIC CORP. |
发明人 |
YASUDA,HIROSHI;KANAYA,FUMIO |
分类号 |
H04J3/00;H04N19/50;(IPC1-7):H04N7/12 |
主分类号 |
H04J3/00 |
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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