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:
Mar. 21, 1989
Filed:
Jan. 19, 1988
Applicant:
Inventor:
Hitoshi Maekawa, Owariasahi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358140 ; 358 11 ;
Abstract
Method and apparatus for converting a hivision TV image signal to a computer terminal image signal are disclosed. Three line memories are provided for three continuous scan lines in a field. Data of one scan line of a hivision TV image signal is written into one of the three line memories and data previously written into other two are read therefrom. A read sampling clock period is set to be 4/5 of a write sampling clock period, and the outputs of the two line memories are linearly interpolated so that the scan lines appear at the same position in first and second fields.