Image pickup apparatus with a variable length encoder and...

Details Image pickup apparatus with a variable length encoder and... Image pickup apparatus with a variable length encoder and...

2007-10-23

2007-10-23

Srivastava, Vivek (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S390100

Reexamination Certificate

active

10415114

ABSTRACT:
This invention is a digital still camera having a coded data quantity monitoring circuit (9). This monitoring circuit (9) detects the quantity of data of an image signal compressed by a JPEG compression circuit (7). When a CPU (10) judges that the quantity of data detected by the coded data quantity monitoring circuit (9) is equal to or more than a maximum coded data quantity S, first, an image pickup element (3) is caused to pick up an image of an object again and output a different image signal, and a quantization table to be used in a quantization circuit (21) is changed. Next, the different image data is compressed by being DCT-transformed by a DCT circuit (20), then quantized by the quantization circuit (21) and coded by a coding circuit (22). The compressed different image signal is recorded to a memory card (13). In this case, the different image signal is recorded into an area where an image signal has been recorded in advance on the memory card (13).

REFERENCES:
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patent: 6198848 (2001-03-01), Honma et al.
patent: 6915014 (2005-07-01), Honma et al.
patent: 4-145781 (1992-05-01), None
patent: 2000-125255 (2000-04-01), None
patent: 2001-238179 (2001-08-01), None

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