Digital camera
AssigneeSanyo Electric Co., Ltd.
InventorsMasahiko Nishikawa, Takehiko Kanda
Life of this patent
Estimating the term…
Abstract
A digital camera includes a signal processing circuit. The signal processing circuit makes signal processing on the camera data read from a camera data area of an SDRAM to produce YUV data for record. A thin-out circuit makes a thin-out processing on the recording YUV data to produce YUV data for display. The display YUV data and the recording YUV data thus produced are written respectively to a display data area and a recording data area of the SDRAM and thereafter processed for display on a display and record to a flash memory. The access speed to SDRAM is 48 MHz and the processing speed of the signal processing circuit and thin-out circuit is 12 MHz. Consequently, the YUV data for display and YUV data for record is written concurrently with reading out of the camera data.
Claims11
A digital camera that produces a display image signal for display on a display and a recording image signal for record to a recording medium on the basis of a camera signal outputted from an image sensor in response to a picture-taking instruction, comprising:
- a first writer for writing the camera signal to a first area of a memory;
- a reader for reading the camera signal from said first area;
- a first producer for producing the recording image signal based on the camera signal read out by said reader;
- a second producer for producing the display image signal based on the recording image signal;
- a second writer for writing the display image signal to a second area of said memory;
- and
- a third writer for writing the recording image signal to a third area of said memory;
- wherein an access speed to said memory is three times greater or more than a processing speed by said first producer and said second producer.
A digital camera that produces a display image signal for display on a display and main and size-reduced image signals for recording to a recording medium, on the basis of a camera signal outputted from an image sensor in response to a picture-taking instruction, comprising:
- a first producer for producing the main image signal on the basis of the camera signal;
- a second producer for producing the display image signal by making a resolution-reducing process on the main image signal;
- and
- a third producer for producing the size-reduced image signal by making a resolution-reducing process on the display image signal.
Dependencies are inferred from the claim text.