发明名称 |
Apparatus and method for recording digital data with a controlled data compression ratio |
摘要 |
In step S1, the capacity of the area (remaining quantity) of a disk in which information can be recorded is read, and the remaining quantity is displayed in step S2. After a user inputs the recording time of information to be recorded and the recording capacity w for the recording, an average transmission rate R1 is calculated from expression R1=w/t- alpha in step S4. The rate alpha is the transmission rate for transmitting signals other than a video signal, such as an audio signal, attached to the video signal. Data obtained by applying a DCT treatment to the video data is quantized with a quantization width corresponding to the average transmission rate R1 and this data is intermittently recorded on the disk.
|
申请公布号 |
US5381275(A) |
申请公布日期 |
1995.01.10 |
申请号 |
US19930102841 |
申请日期 |
1993.08.06 |
申请人 |
SONY CORPORATION |
发明人 |
NITTA, HAJIME;TAKASHIMA, MASATOSHI;SAITO, TAKEHIKO;NAKAGAWA, TOMIHIRO;YAMASHITA, KEITARO |
分类号 |
G11B20/00;G11B20/10;G11B27/034;G11B27/32;G11B27/34;H04N5/765;H04N5/85;H04N5/926;H04N7/26;H04N7/50;(IPC1-7):G11B5/09;H04N5/76 |
主分类号 |
G11B20/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|