Abstract: A driving recorder system and a coordinate positioning method thereof. The system comprises a curved image lens, an operation module, a processing module, a display module and a storage module. The curved image lens captures the curved image of the surrounding areas thereof. The operation module restores the curved image into a restored image. The processing module receives the restored image and adds time data to the restored image. The display module displays the restored image and the time data. The storage module stores the restored image and the time data.

Abstract: A verifying system includes an object to be verified and a verifying end. The object to be verified includes an identifying code covered with a one-time removable and opaque shielding layer, and an object tag is disposed on the shielding layer, the object tag corresponding to the identifying code. The verifying end includes a database storing object information corresponding to the identifying code. After the shielding layer is removed to expose the identifying code, and an electronic device is utilized to read the identifying code, the electronic device connects to the verifying end in accordance with the identifying code, so that the verifying end compares the identifying code with the object information, so as to generate a verifying information and transmit the verifying information to the electronic device.

Abstract: A push-pull shopping system and a method thereof. The system comprises a first electronic device, a plurality of second electronic devices and a system server. The system provides an on-line shopping platform. The first and the second electronic devices are connected to the on-line shopping platform through the system server. A buyer transmits a request-to-buy message related to a specific object via the first electronic device to the system server and then the system server displays the request-to-buy message to the on-line shopping platform. Purchasers acting on behalf of the buyer transmit condition messages in response to the request-to-buy message to the on-line shopping platform through the second electronic devices for the buyer to choose therefrom.

Abstract: The present invention discloses a chip structure capable of smoothing slope of signal during conversion. And the chip structure is suitable for a DC motor which is embedded in a portable electronic device. The DC motor is for adjusting the focal distance of a digital camera which is installed within the portable electronic device. The chip structure comprises an input terminal, a first converter, a control unit, a second converter, an amplifier circuit and an output terminal. The input terminal is for receiving a first digital signal. The first converter is for converting the first digital signal into an analog signal. The control unit is for elongating the transform time of the analog signal. The amplifier circuit is for amplifying the elongated analog signal. The second converter is for converting the elongated analog signal into a second digital signal. And the output terminal outputs the second digital signal.