Abstract: In a method for processing video data of a number of clients of a video conference, the clients include one master client and one or more branch clients. The video data is received from the clients and the received video data of the branch clients are copied. The copied video data of the branch clients are transmitted to the master client, decoded by corresponding CODEC boxes in an array decoder box, and displayed on corresponding screens of a TV wall. The video data of the clients are transmitted to a multipoint control unit, and synthesized by the multipoint control unit to obtain synthesized video data. The synthesized video data is transmitted to each branch client, decoded by a CODEC box of the branch client, and displayed on a display device connected to the branch client.

Abstract: A cell mobility characteristics sensing apparatus including a laser light source, a light sensor, an analyzing chip, and a display is disclosed. The laser light source emits laser beams to a cell sample. The light sensor senses scattered laser beams formed by the cell sample scattering the laser beams at a plurality of time points to obtain a plurality of laser scattering patterns corresponding to the plurality of time points respectively. The analyzing chip obtains a laser scattering pattern fluctuations information of the plurality of laser scattering patterns varied with the plurality of time points to estimate the mobility characteristics of the cells in the cell sample. The display shows the mobility characteristics of the cells in the cell sample estimated by the analyzing chip.