Abstract: An optical transceiver module includes a first flexible circuit board and a second flexible circuit board; a light receiving unit and a light transmitting unit disposed on the first flexible circuit board and the second flexible circuit board, respectively; a printed circuit board connected to the first flexible circuit board and the second flexible circuit board, and including a connecting point; and a signal processing unit disposed on at least one of the first flexible circuit board, the second flexible circuit board, and the printed circuit board. The signal processing unit processes optical signals received by the light receiving unit and transmits the signals to the connecting point of the printed circuit board, and processes electrical signals transmitted from the connecting point of the printed circuit board and transmits the signals out through the light transmitting unit.

Abstract: A packaging structure and an optical module using the same are disclosed, wherein said packaging structure includes: a printed circuit board, having a first surface and a second surface opposite to each other; a heat dissipation hole running through the first and second surfaces of the printed circuit board; a heat dissipation block fixed within the heat dissipation hole; a power device provided on the first surface of the printed circuit board, wherein the power device is in a thermal conductive connection with the heat dissipation block. No adhesive or other dielectric of low heat conductivity coefficient is necessary during the manufacturing process of the heat dissipation block. The heat dissipation hole can open wider, as the fixation of copper paste and the heat dissipation hole are not a concern. Therefore, the heat dissipation ability of the packaging structure is optimized and the stable operation of the device is ensured.

Abstract: An optical transceiver module includes a first flexible circuit board and a second flexible circuit board; a light receiving unit and a light transmitting unit disposed on the first flexible circuit board and the second flexible circuit board, respectively; a printed circuit board connected to the first flexible circuit board and the second flexible circuit board, and including a connecting point; and a signal processing unit disposed on at least one of the first flexible circuit board, the second flexible circuit board, and the printed circuit board. The signal processing unit processes optical signals received by the light receiving unit and transmits the signals to the connecting point of the printed circuit board, and processes electrical signals transmitted from the connecting point of the printed circuit board and transmits the signals out through the light transmitting unit.

Abstract: A mobile terminal capable of being tracked and located is disclosed, comprising a built-in card and a security system module which are connected with each other. The security system module generates a short message used for tracking and locating when receiving an incoming call request or a short message sent by the built-in card, wherein the short message at least carries an identification of a cellular tower interacting with the built-in card and information of current signal intensity, and the short message is sent into the built-in card; the built-in card sends the received incoming call request or the short message to the security system module and periodically sends the short message used for tracking and locating generated by the security system module to the set security number. A corresponding method is also provided. The security system is good at cover-up to bring the advantages of security and saving electricity.

Abstract: A mobile terminal capable of being tracked and located is disclosed, comprising a built-in card and a security system module which are connected with each other. The security system module generates a short message used for tracking and locating when receiving an incoming call request or a short message sent by the built-in card, wherein the short message at least carries an identification of a cellular tower interacting with the built-in card and information of current signal intensity, and the short message is sent into the built-in card; the built-in card sends the received incoming call request or the short message to the security system module and periodically sends the short message used for tracking and locating generated by the security system module to the set security number. A corresponding method is also provided. The security system is good at cover-up to bring the advantages of security and saving electricity.