Motion compensated interframe encoding system with adaptive quantization
January 24, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesTelevision signal encoder utilizing a correlation between frames Adaptive picture image compression system Code converting system and method for band compression of digital signals Method and arrangement of coding digital image signals utilizing interframe correlation Encoder capable of faithfully and adaptively encoding a moving image Data compression using orthogonal transform and vector quantization Apparatus for coding a moving-picture signal Picture signal processor, picture signal coder and picture signal interpolator Patent #: 5028995 InventorsApplicationNo. 645322 filed on 01/24/1991US Classes:375/240.12, Predictive348/699Motion vector generationExaminersPrimary: Kostak, Victor R.Attorney, Agent or FirmForeign Patent References
International ClassH04N 007/13Foreign Application Priority Data1989-02-14 JPAbstractA picture signal encoding and decoding apparatus which transmits a digital picture signal by encoding, and receives and decodes an incoming encoded signal comprises a configuration in which a condition not to make a receiving buffer overflow can be controlled on the transmitting side, and a plurality of quantizers are prepared and a proper quantizing characteristic is selected and used according to the sequence of transformed coefficients and the size of a motion vector. Therefore, it is not necessary to prepare a receiving buffer of a large capacity or a high speed decoding circuit, so that the apparatus can be manufactured at a low cost and the stability of operation is improved and also a signal can be compressed efficiently owing to the realization of quantization corresponding to a statistical characteristic of an input signal.Other References
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