U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Apparatus for band compression processing of a picture signal

Patent 4668987 Issued on May 26, 1987. Estimated Expiration Date: Icon_subject March 11, 2005. 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 References

Interframe coding apparatus
Patent #: 4047221
Issued on: 09/06/1977
Inventor: Yasuda ,   et al.

Video signal interpolation using motion estimation
Patent #: 4383272
Issued on: 05/10/1983
Inventor: Netravali ,   et al.

Predictive coding system for television signals
Patent #: 4460923
Issued on: 07/17/1984
Inventor: Hirano ,   et al.

Video data transmission Patent #: 4597010
Issued on: 06/24/1986
Inventor: Carr

Inventors

Assignee

Application

No. 06/710380 filed on 03/11/1985

US Classes:

348/416.1Including motion vector

Examiners

Primary: Goldberg, E. A.
Assistant: Foster, Patrick W.

Attorney, Agent or Firm

International Classes

G06T 7/20 (20060101)
H04N 7/36 (20060101)
H04N 7/26 (20060101)
H04N 7/32 (20060101)

Foreign Application Priority Data

1984-03-09 JP

Abstract

An apparatus for band compression processing of a picture signal which generates forecasting error signal and movement vector and updates only the movement vector during a comb-out operation. During comb-out processing, a picture signal is recirculated while the movement vector is produced and accumulated. At the end of the comb-out processing, the change in the movement vector from the accumulated vector is within a desired range. Therefore, the scale of a circuit for detecting the movement vector after the comb-out operation does not increase.

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