Picture storage device separates luminance signal into even number and odd number data and separates two channel color signal into former half pixels and latter half pixels
US5654773A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1995 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Dec 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/907
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A picture storage device conveniently employed in conjunction with an electronic still camera or a video camera has an input data converting unit for separating luminance signals of input color picture data having a non-interlaced data format with the sampling rate of the luminance signals and two-route color signals of 4:2:0 into a data string of even-numbered pixels and a data string of odd-numbered pixels, separating the two-route color signals of the color picture data into a data string of the former half pixels and a data string of the latter half pixels, and distributing and re-arraying the separated data, a storage unit having a storage capacity of at least one frame and adapted for storing data in a data re-arraying sequence by the input converting unit, a display data converting unit for converting the data stored in the storage unit into picture-displaying data, and a controller for controlling the input converting unit into synchronization with data writing in the storage unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.