Abstract: A method for sending and receiving an email includes providing an email interface for an email sender to compose the email, inputting a number of recipients and an email message of the email to corresponding input fields of the email interface, setting a reading privilege for each recipient, sending the email to the number of recipients according to the reading privileges, and receiving the email sent from the email sender. The email received by each recipient only contains designated contents of the email according to the reading privilege set by the email sender.

Abstract: A method for granting access to change a security system from a locked state to an unlocked state includes: displaying a security access interface, wherein the security access interface comprises a graphical region, the graphical region is filled with a plurality of colors; selecting at least one color in the graphical region; at least recording at least one color property according to the at least one selected color; generating an input password at least according to the at least one recorded color property; determining whether the input password matches a predetermined password; and granting access if the input password matches with the predetermined password. A related security system is also provided.

Abstract: A password registering method used in an electronic device includes displaying one visual dial on a touch screen of the electronic device; recording rotation parameters of the visual dial rotated by a user, and generating input information according to the rotation parameters; and registering the password according to the generated input information the user's confirming the rotation operation.

Abstract: The present invention provides a base station for an electronic apparatus. The base station includes a main body, a groove, a verifier and at least one motor. The main body is an empty body and accommodates the at least one motor. The groove is defined in the middle of the main body. The verifier is on one side of the main body. The groove accommodates two plates and at least one arc spring. Each arc spring is connected to the two plates. At least one screw is fixed on one plate. Each screw is connected to one motor through a corresponding screw hole. The number of motors, screws and holes are the same. The base station clamps the electronic apparatus between the two plates.

Abstract: A method of protecting an electronic device's USB ports is provided. The method includes: determining whether an external device is connected to a USB port of the electronic device; determining which driver is for driving the external device connected to the USB port according to a primary ID of the external device; determining whether the external device is currently being driven by the driver; displaying an icon corresponding to the external device if the external device is not currently being driven by the driver; and running the driver to drive the external device when the icon is clicked. A related electronic device is also provided.

Abstract: A toy automobile includes wheels, axles connecting the wheels, a holding plate, a control circuit, a sensor, and struts and drive trains corresponding to the wheels. Each strut includes a pivoting strut and a support strut pivoted to each other, one ends of the pivoting strut and the support strut are slidably mounted on the axles. The other end of the support strut slidably resist at the bottom surface of the holding plate. Each drive train is connected with another end of the pivoting strut. When the holding plate is tilted relative to a horizontal reference plane, the control circuit controls the drive trains to drive the pivoting struts at a lower end of the holding plate, the pivoting struts rotate and lift the support struts correspondingly, thus to lift the lower end and make the holding plate parallel to the horizontal reference plane.

Abstract: The present invention provides a toy car wheel with an adjustable center of gravity. The middle of the toy car wheel defines a through hole. At least one spoke is distributed between the rim of the toy car wheel and the through hole. At least one channel is defined in each spoke. At least one spherical body is disposed in each channel. When a toy car decelerates, a momentum of the toy car decreases, the at least one spherical body descends in a corresponding channel, and the center of gravity of the toy car wheel descends.

Abstract: A wheel for a toy vehicle includes a rim, a tire, and a ballast. The rim includes an outer circumferential surface. The tire is attached to the outer circumferential surface of the rim. The tire and the rim cooperatively define a ring-shaped receiving channel therebetween. The ballast is received in the ring-shaped receiving channel, and slidably connected to the outer circumferential surface of the rim. The weight of the ballast is greater than the frictional force between the ballast and the rim.

Abstract: The present invention provides a display system for displaying a virtual keyboard and a display method used for the display system. The display system includes a project apparatus and a display apparatus, the project apparatus communicates with the display apparatus, the project apparatus comprises at least one infrared induction unit configured for transmitting infrared radio to a surface to generate virtual key points of the virtual keyboard and receiving infrared radio reflected by virtual key points of the virtual keyboard on the surface. Therefore, when one virtual key point is touched, the project apparatus acquires the key content information corresponding to the infrared induction unit and the display apparatus performs a function or displays a key content corresponding to the key content information.

Abstract: The present invention provides a base station for an electronic apparatus. The base station includes a main body, a groove, a verifier and at least one motor. The main body is an empty body and accommodates the at least one motor. The groove is defined in the middle of the main body. The verifier is on one side of the main body. The groove accommodates two plates and at least one arc spring. Each arc spring is connected to the two plates. At least one screw is fixed on one plate. Each screw is connected to one motor through a corresponding screw hole. The number of motors, screws and holes are the same. The base station clamps the electronic apparatus between the two plates.

Abstract: A toy automobile includes wheels, axles connecting the wheels, a holding plate, a control circuit, a sensor, and struts and drive trains corresponding to the wheels. Each strut includes a pivoting strut and a support strut pivoted to each other, one ends of the pivoting strut and the support strut are slidably mounted on the axles. The other end of the support strut slidably resist at the bottom surface of the holding plate. Each drive train is connected with another end of the pivoting strut. When the holding plate is tilted relative to a horizontal reference plane, the control circuit controls the drive trains to drive the pivoting struts at a lower end of the holding plate, the pivoting struts rotate and lift the support struts correspondingly, thus to lift the lower end and make the holding plate parallel to the horizontal reference plane.

Abstract: The present invention provides a toy car wheel with an adjustable center of gravity. The middle of the toy car wheel defines a through hole. At least one spoke is distributed between the rim of the toy car wheel and the through hole. At least one channel is defined in each spoke. At least one spherical body is disposed in each channel. When a toy car decelerates, a momentum of the toy car decreases, the at least one spherical body descends in a corresponding channel, and the center of gravity of the toy car wheel descends.

Abstract: A method for granting access to change a security system from a locked state to an unlocked state includes: displaying a security access interface, wherein the security access interface comprises a graphical region, the graphical region is filled with a plurality of colors; selecting at least one color in the graphical region; at least recording at least one color property according to the at least one selected color; generating an input password at least according to the at least one recorded color property; determining whether the input password matches a predetermined password; and granting access if the input password matches with the predetermined password. A related security system is also provided.

Abstract: A method for granting access to change a security system from a locked state to an unlocked state includes: displaying a security access interface on the display unit; selecting one image; changing at least one value of at least one property of the selected image; at least recording the at least one changed value of the at least one property of the selected image; generating an input password at least according to the at least one recorded value of the at least one property of the selected; determining whether the input password matches a predetermined password; and granting access if the input password matches with the predetermined password. A related security system is also provided.

Abstract: A password registering method used in an electronic device includes displaying one visual dial on a touch screen of the electronic device; recording rotation parameters of the visual dial rotated by a user, and generating input information according to the rotation parameters; and registering the password according to the generated input information the user's confirming the rotation operation.

Abstract: An electronic device comprising: a main body and a stylus, wherein the main body comprises: a trigger, which is assigned identification information; a socket configured for receiving the stylus, wherein the socket defines a grooves on an inner surface thereof, and the grooves is configured for placement a trigger; and a processing unit configured for recognizing the identification information of the trigger to determine whether to lock or unlock the electronic device; the stylus comprises: a shank and a ring, wherein the ring is extended from the circumferential surface of the shank, a hook is formed in an end of the stylus, and a protrusion is protruded from the circumferential surface of the ring in alignment with the hook and is received in the groove to press the trigger when the stylus is inserted into the socket and the hook is aligned with the trigger.

Abstract: An electronic device comprising: a main body and a stylus, wherein the main body comprises: a plurality of triggers; a plurality of power consuming modules; a power supply controlling module; a power supplying module; a storage unit configured for storing a relationship table which records a relationship between the triggers and the power consuming modules, wherein each of the triggers is corresponding to one or more power consuming modules; a socket configured for receiving the stylus; the stylus comprises: a shank and a plurality of protrusions, wherein the protrusions are protruded from the circumferential surface of the shank; wherein when one or more trigger is pressed, the power supply controlling module is configured for identifying the pressed trigger, reading the relationship table from the storage unit, and controlling the power supplying module to supply power for the power consuming module corresponding to the pressed trigger.

Abstract: A document encrypting system encrypts data by comparing an ongoing operation with a number of predetermined restricted operations and generating a protection password according to a predetermined operation number and a predetermined computing rule.

Abstract: A wireless communication service system and a mobile phone are provided. The mobile phone generates a calling signal of a recipient number and determines whether a storage unit has stored a cornet associated with the recipient number. If the storage unit has stored the cornet, the mobile phone sends a transmission containing the cornet. If the storage unit has not stored the cornet, the mobile phone sends a transmission containing the recipient number. When the wireless communication service system receives the transmission containing the recipient number, the wireless communication service system determines whether the recipient number has joined a cornet cluster network of a caller number. If so, the wireless communication service system calls the cornet. If not, the wireless communication service system calls the recipient number.

Abstract: A method of protecting an electronic device's USB ports is provided. The method includes: determining whether an external device is connected to a USB port of the electronic device; determining which driver is for driving the external device connected to the USB port according to a primary ID of the external device; determining whether the external device is currently being driven by the driver; displaying an icon corresponding to the external device if the external device is not currently being driven by the driver; and running the driver to drive the external device when the icon is clicked. A related electronic device is also provided.