BB-HCM715CE, BB-HCM735CE - Panasonic Video Monitoring Service Manual (repair manual). Page 14

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• Image compression (JPEG/MPEG-4/H.264 encode) function, memory control unit (MCU), ETHERNET MAC, and SD card con-

troller are built into IC101.

• Picture data input from the camera block is captured in SDRAM (1).
• Captured image data is input to the ZOM block, where the scaling of the image size is performed, (an image size of 640

×480,

320

× 240, or 192×144 is generated from the one with the size of 1280×960, or an image size of 640×480, 320×240 or 192×144

from the one with the size of 640

×480), and is stored in SDRAM again (2).

• The scaled image data is input to the JPEG/MPEG-4/H.264 encode section of IC101, and the image is compressed. The com-

pressed image data is stored in SDRAM again (3).

• After CPU processed the compressed image data for a communication protocol, the data is forwarded to the network via ETH-

ERNET MAC and ETHERNET PHY. And the image data of post-compression is processed for a file and is recorded on the SD
card.

• As for the video output, the captured image data is scaled to a size of NTSC or PAL at the ZOM block, and then it is output from

VIDEO OUT and DAC sections as an analog video signal.

• This analog video signal is amplified by the video amplifier (IC501) and output from CN401 on the IO board with the output

impedance of 75Ω.