A capacitance-type fingerprint sensor. One embodiment comprises a flip-chip design with a rectangular semiconductor die with a relatively large aspect ratio bonded to a substantially square substrate through solder bumps. The presently described technology can be easily implemented and can improve the network quality of service effectively, which can solve one or more problems in the conventional master-slave bi-planes networking, such as insufficient usage of the network resource, complex network policy configuration, etc. Encoded data output from the intra encoder 14 and the intra encoder 15 is multiplexed into a single encoded stream to be output. A rocker mechanism is attached to the chair frame to support the chair during rocking movement and to facilitate rocking of the chair in connection with the user’s shifting weight.