A VoIP communication service using communication tokens, such as QR codes, to identify the receivers can provide callers with the ability to communicate with the receivers using VoIP technology, without the need to pre-registering with the VoIP service provider that hosts the communication. The tokens can be customized by having a profile, which can include conditions imposed by the receivers on the callers. The tokens can be used in a call center to provide VoIP communication services.

Communication between an owner of a lost tracking device and a finder of a lost tracking device is established. A tracking system receives an identifier of a tracking device and a request for a web page from a mobile device that has captured an image of a smart code on the tracking device. The smart code is embedded with a URL to the web page. The system displays the web page on the mobile device and prompts the user to provide a location of the mobile device. The location is associated with the identifier of the tracking device. A notification indicating the location of the tracking device is generated for the owner. The owner is prompted to provide information to establish contact with the finder of the device, and the web page is populated with the owner's provided information for display on the finder's mobile device.

Communication between an owner of a lost tracking device and a finder of a lost tracking device is established. A tracking system receives an identifier of a tracking device and a request for a web page from a mobile device that has captured an image of a smart code on the tracking device. The smart code is embedded with a URL to the web page. The system displays the web page on the mobile device and prompts the user to provide a location of the mobile device. The location is associated with the identifier of the tracking device. A notification indicating the location of the tracking device is generated for the owner. The owner is prompted to provide information to establish contact with the finder of the device, and the web page is populated with the owner's provided information for display on the finder's mobile device.

Disclosed are a wireless connection system capable of conveniently connecting two devices through short-range wireless communication and a method of controlling the same. A method of controlling a mobile terminal performing wireless connection to a vehicle includes displaying a first menu corresponding to a first connection type and a second menu corresponding to a second connection type according to a first command, selecting the first menu or the second menu according to a second command, and performing automatic connection to the vehicle through a connection type corresponding to a menu selected by the second command. The first connection type uses information about whether a wireless connection address of the vehicle is equal to a pre-stored address and the second connection type uses the wireless connection address acquired from a digital code provided through the vehicle.

Provided is a wearable personal digital device for point of healthcare saliva testing. The wearable personal digital device may comprise a processor, a display, biometric sensors, activity tracking sensors, a memory unit, a communication circuit, a housing, an input unit, a projector, a timepiece unit, a haptic touch control actuator, a band, a mounting clip, a saliva sample insert apparatus, a pinhole, a light emitting diode board, a battery, and a set of sensors. The processor may be operable to receive data from an external device, provide a notification to a user based on the data, receive a user input, and perform a command selected based on the user input. The housing may be adapted to enclose the components of the wearable personal digital device. The band may be adapted to attach to the housing and secure the wearable personal digital device on a user body.

Provided is a wearable personal digital device for point of healthcare saliva testing. The wearable personal digital device may comprise a processor, a display, biometric sensors, activity tracking sensors, a memory unit, a communication circuit, a housing, an input unit, a projector, a timepiece unit, a haptic touch control actuator, a band, a mounting clip, a saliva sample insert apparatus, a pinhole, a light emitting diode board, a battery, and a set of sensors. The processor may be operable to receive data from an external device, provide a notification to a user based on the data, receive a user input, and perform a command selected based on the user input. The housing may be adapted to enclose the components of the wearable personal digital device. The band may be adapted to attach to the housing and secure the wearable personal digital device on a user body.

A top up communication system and method thereof are provided, which provides a call between at least two electronic devices, where each of the at least two electronic devices has a unique identification code. The method includes following steps: buying a deposit code on the web-site or obtaining it sent from others; surfing a user interface of an activating data server; inputting the deposit code into the user interface to generate an activate identification data; scanning the activate identification data by a scanner to generate a shortcut icon on a monitor of the scanner; transmitting a dialed command to a connection generation server by triggering the shortcut icon; using the dialed command to establish a communication link between the at least two electronic devices by the connection generation server.

In various example embodiments, a system and method for retrieving item identification information are presented. The system receives a selection request indicating selection of a user interface element from a client device and, based on the selection request, causes the client device to access an image capture application. The system receives encoded image data from the client device, decodes the image data to retrieve one or more optical machine-readable representations of data, and determines one or more items associated with the optical machine-readable representations of data. The system then causes presentation of item data representative of the one or more items at the client device.

In various example embodiments, a system and method for retrieving item identification information are presented. The system receives a selection request indicating selection of a user interface element from a client device and, based on the selection request, causes the client device to access an image capture application. The system receives encoded image data from the client device, decodes the image data to retrieve one or more optical machine-readable representations of data, and determines one or more items associated with the optical machine-readable representations of data. The system then causes presentation of item data representative of the one or more items at the client device.

A testing method for a smart wristband and a testing system thereof are provided. The Bluetooth function of the smart wristband is put into a sleep state through presetting of the system software before the test, and the testing method comprises the following steps of: carrying out electrical connection operations on the smart wristband under test during the test so that the Bluetooth function of the smart wristband is activated; completing pairing between the smart wristband and the testing apparatus, and synchronously displaying a corresponding function of the smart wristband on a screen of the testing apparatus so as to be tested, wherein the testing apparatus is a smartphone, and the testing of the corresponding function includes at least one of Bluetooth power testing, writing of the mainboard serial number, charging testing and motor vibration controlling.