Patent Application
20070264976
The invention will be described in detail below with reference to the accompanying drawings in which:
The invention is described with reference to a portable device, e.g. a telecommunication device such as a mobile telephone, a pager, a communicator, or a smart phone. The invention is equally applicable in other computer devices, such as electronic organisers, palm computers et cetera.
A person skilled in the art will realize that the device may incorporate many other functions and components. This specification will focus on components relevant to the invention, while other components may be conventional.
The navigation means may also be integrated with the display. In this case, the display suitably comprises a touch screen, i.e. a screen sensitive to touches by a finger or a stylus for receiving commands from the user who touches and drags on the screen to perform various operations. Touch screens are commercially available components and do not form part of the present invention as such.
The device 1 comprises storage for storing data relative to images, audio and video files, calendar entries, phone book information et cetera. In this specification such data files are referred to as items. An item is associated with data that may be shared. When sharing an item a copy of the data is sent, while maintaining the original data in storage. As is conventional, items may be handled by navigating in a menu system of the device. Typically, a number of items are represented by icons, thumb nails or other symbols. In
The device is illustrated schematically in
The device also comprises a communication interface 10 for handling short range communication. The communication interface 10 comprises transmitters and receivers for communicating with NFC using RFID, radio frequency identification, short range radio, such as the well known Bluetooth system, and/or for communication via infrared light.
The NFC protocol is based on a wireless interface. The protocol establishes wireless network connections between network appliances such as mobile phones and consumer electronics devices or between two mobile phones.
The interfaces suitably operate in the unregulated RF band of 13.56 MHz. In practice the distance at which the devices can connect to each other is restricted, and the operating distances are usually in the range of 0˜20 cm.
As is often the case with the devices sharing a single RF band, the communication is half-duplex. The devices implement the “listen before talk” policy—any device must first listen on the carrier and start transmitting a signal only if no other device can be detected transmitting.
NFC protocol distinguishes between the Initiator and the Target of the communication. Any device may be either an Initiator or a Target. The Initiator, as follows from the name, is the device that initiates and controls the exchange of data. The Target is the device that answers the request from the Initiator.
The NFC protocol also distinguishes between two modes of operation: Active mode and Passive mode. All devices support both communication modes. The distinction is as follows:
In the Active mode of communication both devices generate their own RF field to carry the data.
In the Passive mode of communication only one device generates the RF field while the other device uses load modulation to transfer the data. The protocol specifies that the Initiator is the device responsible to generate the RF field.
According to the NFC standard, the application sets the initial communication speed at 106, 212 or 424 kbit/s. Subsequently the application and/or the communication environment may require speed adaptation, which can be done during communication.
The communication is terminated either on the command from the application or when devices move out of range.
Also, the NFC protocol can be used easily in conjunction with other protocols to select devices and automate connection set-up. The parameters of other wireless protocols can be exchanged allowing for automated set-up of other, longer-range, connections. The difficulty in using relatively long-range protocols like Bluetooth or Wireless Ethernet is in selecting the correct device out of the multitude of devices in the range and providing the right parameters to the connection. Using NFC the whole procedure is simplified to a mere placement of one device close to another.
The device 1 is provided with a control unit 8, having a processor for handling commands from the user interface and is operating in accordance with software or code to control operations of the device including the interfaces and data handling.
The operation of the device results in easy sharing of data between the device and other devices located in the near field. The near field communication is typically capable of operating over short distances, e.g. within a few centimeters for NFC (RFID) and infrared light, and a normal room for short range radio (e.g. Bluetooth). An object of the invention is that users should go through as few steps as possible, and use a procedure that is as intuitive as possible. The invention allows users to use a simple gesture for sharing data, bypassing the need to find and select actions in the interface. Basically, the user of a touch screen phone can simply use a finger/pen to touch and drag an item to be shared in the direction of the other phone. When he reaches the edge of the screen, a question will pop-up: “Send to yyy phone?” In case of NFC and short range radio, it does not matter in which direction the other user's phone is as long as the devices are within range for communication. The user will intuitively drag the item in the direction of the other user's phone, but in reality it could work equally well to drag the item in any direction on the display. In case of infrared light, however, the transmission and reception port is located at one side of the device. Thus, the user interface should encourage the user to place the device correctly by allowing communication only when the user has dragged an item on the display in the direction of the infrared light port of the user's phone.
In a phone without a touch screen, the user can use the navigation means 3 to the same effect—hold and press “right” on an item if the other phone is to the right, “left” if to the left, “up” if above. Long presses may be necessary to differentiate sharing from other navigation with the navigation means depending on the layout of the items on the display.
A typical example of a sharing procedure according to an embodiment of the invention is shown in
Step 1,
Step 2,
Step 3,
Step 4,
Step 4,
It will be seen that Lisa only has to perform one basic action—touch, drag and drop in one movement with her finger—to achieve the data transfer. This results in a simplified and user-friendly procedure. Note that the invention will only have to be implemented in the sender's phone, as the reception is conventional.
The invention may be implemented by means of a suitable combination of hardware and software. The scope of the invention is only limited by the claims below.
