Signal compressing apparatus
AssigneeVictor Company of Japan, Ltd.
InventorsShoji Ueno, Norihiko Fuchigami, Yoshiaki Tanaka
Life of this patent
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Abstract
An input signal is quantized into a quantization-resultant signal. The quantization-resultant signal is compressed into a compression-resultant signal. The compression-resultant signal is formatted into a formatting-resultant signal corresponding to a predetermined format for a digital recording disc. The formatting-resultant signal includes segments corresponding to user data areas prescribed in the predetermined format. The compression-resultant signal is placed in the segments of the formatting-resultant signal. The formatting-resultant signal is encoded into an encoding-resultant signal of a CD format. The encoding-resultant signal is recorded on a recording medium.
Claims6
1-17. (canceled)
18-23. (canceled)
A signal reproducing apparatus comprising:
- means for reproducing an encoding-resultant signal of a predetermined recording-medium format from a digital disc including a DVD, the encoding-resultant signal containing audio information resulting from quantization of an audio signal including a monaural channel audio signal at a quantization degree higher than a degree of quantization for a CD and at a quantization sampling frequency higher than that for a CD, the quantization sampling frequency including 96 kHz;
- means for decoding the reproduced encoding-resultant signal into a formatting-resultant signal corresponding to a predetermined format for a digital disc including a DVD, the formatting-resultant signal including segments corresponding to user data areas prescribed in the predetermined format, a compression-resultant-signal being placed in the segments of the formatting-resultant signal;
- means for deformatting the formatting-resultant signal into the compression-resultant signal;
- means for expanding the compression-resultant signal into a quantization-resultant signal by a Huffman decoding process;
- and
- means for converting the quantization-resultant signal into the audio signal including the monaural channel audio signal.
A signal recording apparatus comprising:
- means for quantizing an input audio signal including a monaural channel audio signal into a quantization-resultant signal at a quantization degree higher than a degree of quantization for a CD and at a quantization sampling frequency higher than that for a CD, the quantization sampling frequency including 96 kHz;
- means for compressing the quantization-resultant signal into a compression-resultant signal by a Huffman encoding process;
- means for formatting the compression-resultant signal into a formatting-resultant signal corresponding to a predetermined format for a digital disc including a DVD, the formatting-resultant signal including segments corresponding to user data areas prescribed in the predetermined format, the compression-resultant signal being placed in the segments of the formatting-resultant signal;
- means for encoding the formatting-resultant signal into an encoding-resultant signal of a predetermined recording-medium;
- and
- means for recording the encoding-resultant signal on a digital disc including a DVD.
A signal reproducing apparatus comprising:
- means for reproducing an encoding-resultant signal of a predetermined recording-medium format from, a digital disc including a DVD, the encoding-resultant signal containing audio information resulting from quantization of an audio signal including a monaural channel audio signal at a quantization degree higher than a degree of quantization for a CD and at a quantization sampling frequency higher than that for a CD, the quantization sampling frequency including 96 kHz;
- means for decoding the reproduced encoding-resultant signal into a formatting-resultant signal corresponding to a predetermined format for a digital disc including a DVD, the formatting-resultant signal including segments corresponding to user data areas prescribed in the predetermined format, a compression-resultant signal being placed in the segments of the formatting-resultant signal;
- means for deformatting the formatting-resultant signal into the compression-resultant signal;
- means for expanding the compression-resultant signal into a quantization-resultant signal by one of an orthogonal decoding process and a Huffman decoding process;
- and
- means for converting the quantization-resultant signal into the audio signal including the monaural channel audio signal.
Dependencies are inferred from the claim text.