Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2011-06-21
2011-06-21
Czekaj, David (Department: 2483)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240050, C348S384100
Reexamination Certificate
active
07965768
ABSTRACT:
The present invention provides an image coding apparatus and an image coding program that execute quantization control so that a generating bit is made close to a target bit. The image coding apparatus according to the present invention includes a generated bit measurement unit, a target bit setting unit, a residual bit computing unit for computing a residual value between the generated bit and the target bit, a remaining video buffer capacity measurement unit, and a quantization parameter computing unit for computing a quantization parameter to set the same to the quantization unit. The quantization parameter computing unit computes a quantization parameter for next image data to be encoded on the basis of at least one of the residual value computed and the remaining video buffer capacity measured.
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Ito Hiroaki
Karube Isao
Murakami Tomokazu
Takahashi Masaru
Yoshida Daisuke
Antonelli, Terry Stout & Kraus, LLP.
Czekaj David
Hitachi , Ltd.
Pontius James
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