Title:
【発明の名称】ディジタルスチルカメラおよび画像データの処理装置
Document Type and Number:
Japanese Patent JP3075265
Kind Code:
B2
Abstract:
The invention relates to an image data expansion processor for digital still camera. Two blocks of 8-bit luminance data and one block of 8-bit color difference data are repeatedly output from a compressing/expanding unit in the above order and are supplied to a buffer memory. Two blocks of 16-bit data to be written are generated corresponding to the two blocks of 8-bit luminance data and one block of 8-bit color difference data, are sequentially supplied from the buffer memory to a frame memory in units of block and are written to the frame memory. Each of luminance data and color difference data is not written to the frame memory in units of block but 16-bit data to be written composed of these luminance data and color difference data is written to the frame memory in units of block. The number of blocks written to the frame memory can be reduced and total time required for switching an address in the direction of lines can be reduced.
Inventors:
Chikako Sano
Application Number:
JP22825298A
Publication Date:
August 14, 2000
Filing Date:
August 12, 1998
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N9/79; H04N1/64; H04N5/225; H04N9/07; H04N9/804; H04N9/808; H04N11/04; (IPC1-7): H04N11/04; H04N9/07; H04N9/79; H04N9/804; H04N9/808
Domestic Patent References:
| JP10210501A | ||||
| JP9331546A | ||||
| JP62122490A |
Attorney, Agent or Firm:
Kunio Yamaguchi (1 person outside)