Encoding apparatus and method, recording medium, and decoding apparatus and method
AssigneeSony Corporation
InventorsKyoya Tsutsui, Osamu Shimoyoshi, Hiroyuki Honma, Satoshi Miyazaki
Life of this patent
Estimating the term…
Abstract
A first codec-based warning message generator 151 generates a warning message by a first. A first codec-based silent fixed pattern generator 152 generates a first codec-based silent fixed pattern. A second codec encode block 154 encodes an input signal by a second codec. A code string generator 155 generates a synthetic code string by synthesizing outputs from the above components in an encoding frame having a predetermined length being a unit of encoding.
Claims13
An encoder comprising:
- a first encoding means for generating a first code string by encoding a warning message signal or silent signal;
- a second encoding means for generating, when the first encoding means is encoding a silent signal, a second code string by encoding an input signal;
- and
- means for generating a synthetic code string by combining the first and second code strings together.
An encoding method comprising:
- a first encoding step of generating a first code string by encoding a warning message signal or silent signal;
- a second encoding step of generating, when the first encoding means is encoding a silent signal, a second code string by encoding an input signal;
- and
- a step of generating a synthetic code string by combining the first and second code strings together.
A recording medium for recording a synthetic signal generated by combining a first code string and second code string, in which the first code string is generated by encoding a warning message or silent signal while the second code string is generated by encoding an input signal when the first code string is a silent signal encoded.
A decoder comprising:
- means for receiving a code string synthesized by combining a code string encoded by a first encoding means and a code string encoded by a second encoding means;
- means for detecting a predetermined bit pattern in the first code string;
- and
- means for decoding the second code string;
- the second code string decoding means providing a predetermined sound when the predetermined bit pattern has not been detected by the bit pattern detecting means.
A decoding method comprising steps of:
- receiving a code string synthesized by combining a code string encoded by a first encoding and a code string encoded by a second encoding;
- means for detecting a predetermined bit pattern in the first code string;
- and
- means for decoding the second code string;
- at the second code string decoding step, there being provided a predetermined sound when the predetermined bit pattern has not been detected at the bit pattern detecting step.
A decoder comprising:
- means for receiving a code string synthesized by recording, in a predetermined-length encoding frame, a first code string from the top of the encoding frame and a second code string from the bottom of the encoding frame;
- and
- means for decoding the second code string recorded from the bottom of the encoding frame.
A decoding method comprising steps of:
- receiving a code string synthesized by recording, in a predetermined-length encoding frame, a first code string from the top of the encoding frame and a second code string from the bottom of the encoding frame;
- and
- decoding the second code string recorded from the bottom of the encoding frame.
Dependencies are inferred from the claim text.