A / D converter for IP Cameras
A / D converter function is to simulate the image and sound signals into digital signals.
Model-based CMOS image sensor module has a direct digital signal output of the interface, not A / D converter; and if model-based CCD image sensor module have a direct digital signal output for the interface , not need A / D converter, but this CCD image sensor module primarily designed for analog cameras, only the analog output interface, so the need for A / D conversion.
IP Cameras images, sound encoder
The A / D converted image, audio digital signals, according to some standard format and encoding. Encoding is intended to facilitate the realization of audio / visual signal and digital multimedia signal to be easy in computer systems, networks, and the World Wide Web to transmit the signal without distortion.
At present, , there are two image coding technology: one is the hardware encoding, encoding compression algorithm will solidify on the chip; the other is the DSP-based software coding that the software running on the DSP on image coding. Similarly, the voice compression coding can be used to hardware compression and software compression, the coding standard has MP3 and other formats.
Network camera controller
Controller is the heart of the network IP cameras, which take on the responsibilities of management and control of the camera. If hardware compression, the controller is a separate component; If it is software encoding, the controller is running encoding software DSP, which combine the two.
More technic information, please send email to sale@china-ip-camera.com (Judie)
