Encoded data modification device, modification method, and...

Details Encoded data modification device, modification method, and... Encoded data modification device, modification method, and...

2011-04-26

2011-04-26

Ustaris, Joseph G (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C382S100000

Reexamination Certificate

active

07933326

ABSTRACT:
An encoded data modification device and the like are obtained which are capable of modifying a signal with a small delay. There is provided the encoded data modification device, including: an operational buffer that stores inputted encoded data formed of a plurality of encoded units; a decoder circuit that decodes the encoded data stored in the operational buffer; a modification circuit that modifies a first encoded unit of the decoded data and modifies following decoded encoded units according to the modification; an encoder circuit that re-encodes the modified data; an operational circuit that judges whether the modification is contained in the data in the buffer; and a write control circuit that rewrites the encoded data stored in the operational buffer to the data modified by the modification circuit and re-encoded by the encoder circuit when the operational circuit judges that the modification is contained in the data in the buffer.

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Frank Hartung et al., International Conf. on Image Processing, pp. 2621 to 2624, 1997.
Adnan M. Alattar et al., IEEE Trans., on Circuits & Systems for VT, vol. 13, No. 8, pp. 787 to 800, Aug. 2003.

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