Abstract: A portable electronic system includes a display module, a touch input module, and a control module. The touch input module includes a touch panel, a transceiver control unit, and a touch processing unit. The transceiver control unit is coupled with the touch panel to transmit signal. The touch processing unit is coupled with the transceiver control unit. The control module includes a sensor and a control unit. The sensor detects an open or closed state of the display module to output a sensing signal. The control unit is coupled with the sensor to enable or disable the touch input module according to the open or closed state of the display module when the portable electronic system is at an operating mode.

Abstract: A knock mode scanning near-field optical microscope comprises a light source member, an optical fiber probe connected at one end thereof with the light source member such that other end of the optical fiber probe forms a near-field point source of light, and that the optical fiber probe is attached with one end of a suspension arm member of an oscillation member. The oscillation member further has a piezoelectric ceramics, which is disposed on the suspension arm member, and is driven by a harmonic wave signal by a signal feedback member so as to bring about a change in amplitude and phase of the optical fiber probe in order to result in a feedback control.