The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 1996
Filed:
Dec. 27, 1994
Sung-wook Park, Incheon, KR;
Joon-ki Paik, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A digital zooming system comprises a recording medium for saving a digital video signal forming a predetermined color array; a sum/difference signal separator for receiving the signal from the recording medium and then obtaining a sum value and difference value with respect to two neighboring pixels among the pixels of the predetermined color array; a correlation calculating circuit comprising a sum-value interpolation calculator for performing horizontal and vertical interpolations with respect to the sum-value according to a zooming ratio and a difference-value interpolation calculator for calculating the horizontal and vertical interpolations; a sum/difference signal mixer for receiving the interpolated sum value and difference value and producing the original digital video signal; a digital-to-analog converter for converting the digital video signal from the mixer into analog form; an address generator circuit for generating an address signal for reading or writing the data recorded on the recording medium; a coefficient generator for inputting coefficients conforming to the zooming ratio to the sum-value and difference-value interpolation calculators; and a control-signal generator for generating control signals for controlling the system. Therefore, the system can be applied for a variety of magnifying factors and a high quality digital picture zoom is accomplished.