Patent Publication Number: US-8532640-B2

Title: Software key control for mobile devices

Description:
RELATED APPLICATION 
     This application is a continuation of U.S. application Ser. No. 11/653,500, entitled SOFTWARE KEY CONTROL FOR MOBILE DEVICES, filed Jan. 16, 2007 now U.S. Pat. No. 7,792,522 which claims the benefit of U.S. Provisional Application No. 60/758,752, filed Jan. 13, 2006, each of which is incorporated herein by reference in its entirety. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates generally to software registration for mobile devices, and more particularly to an automated software key control for mobile devices. 
     BACKGROUND OF THE INVENTION 
     Mobile devices such as personal digital assistants (PDAs), handheld computers, and portable data terminals have operating systems that can be loaded into the hardware and run in a manner similar to a MICROSOFT WINDOWS® operating system a desktop or network computer. Examples of such systems are WINDOWS® MOBILE, WINDOWS® CE, and POCKET PC. 
     Because mobile devices are typically battery operated and all software and files may be completely removed, control and protection of application software installed on these devices rely on the device&#39;s hardware serial number in order to tie the application software to a particular device. Distributing software to a large number of devices by obtaining these serial numbers and integrating them into software “keys,” however, is time consuming and requires serial number information prior to issuing a key, and can also require human intervention. Accordingly, there is a need for a system that simplifies software registration for mobile devices. 
     SUMMARY OF THE INVENTION 
     The present invention substantially addresses the aforementioned and other needs by providing a software key control system and method for mobile devices. The system and method of the invention automate the sale and distribution of keys for mobile devices. 
     In one embodiment, when a customer orders a software product from a seller, the seller issues a temporary activation key which is posted to a key registration web server. The customer then locates the mobile device&#39;s unique device ID and accesses the web server to provide the temporary activation key. The web server creates a registration key based on the customer&#39;s temporary activation key and device ID. The registration key is transferred to the customer&#39;s mobile device and the customer can then register the ordered software product, thus enabling the product. 
     The above summary of the invention is not intended to describe each illustrated embodiment or every implementation of the present invention. The figures and the detailed description that follow more particularly exemplify these embodiments. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention may be more completely understood from the following detailed description of various embodiments in connection with the accompanying drawings, in which: 
         FIG. 1  is a diagram of a software key control system according to one embodiment of the invention. 
         FIG. 2  is a flowchart of a software key control system and method according to one embodiment of the present invention. 
     
    
    
     While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. 
     DETAILED DESCRIPTION OF THE DRAWINGS 
     Referring to  FIG. 1 , one embodiment of a software key control system  100  comprises a customer mobile device  102 , a customer computer system  104 , a key registration web server  106 , and a seller computer system  108 , all communicatively coupled to the Internet  110 . In the embodiment of  FIG. 1 , mobile device  102  is communicatively coupled to computer system  104 , which is in turn communicatively coupled, directly or via an intermediary network, to the Internet  110  and can transfer information to and from mobile device  102 . Alternatively, mobile device  102  can be directly coupled to the Internet  110  or an intermediary network, omitting computer system  104  in another embodiment. 
     Mobile device  102  may be a cell phone, PDA, handheld computer, portable data terminal, or other similar computer and/or communication device, typically operating with a WINDOWS®.NET compact framework operating system. Operating systems can include, for example, WINDOWS® CE, POCKET PC, MOBILE 2003, and other similar systems. 
     Referring also to  FIG. 2 , a method of the invention is initiated when a customer orders a software product for the customer&#39;s mobile device  102  from the seller. The seller, via seller computer system  108 , accepts and processes the software order at step  112 . Upon accepting the order, the seller issues a temporary activation key at step  114 . Each temporary activation key is unique to a customer order and will later allow the customer to obtain a registration key for the software product. Customer information and software version information denoting which versions of the software can be registered are included within each temporary activation key. The temporary activation key corresponding to the order is then sent via the Internet  110  from seller computer system  108  to a registration key list stored on registration key web server  106 , where the customer will be able to access it. Registration key web server  106  is a server or web service that communicates with the key registration application software installed on customer mobile device  102 , or on computer  104  in one embodiment, to allow registration keys to be obtained. Once the temporary activation key is posted on web server  106 , a notice is sent to the customer indicating that the customer&#39;s key, or keys if multiple products are ordered, is available. 
     Before a customer can use a temporary activation key to obtain a registration key, the customer first locates mobile device  102 &#39;s device ID at step  116 . A device ID is generally a unique serial number or alphanumeric code stored in each mobile device  102  by the manufacturer that identifies that particular device and can be obtained electronically by software. The customer can locate the device ID by using key registration application software on device  102 , or computer system  104 , which then writes the device ID to a file in mobile device  102 . 
     Next, the customer uses the key registration application software operating on computer system  104  or device  102  to access key registration web server  106  at step  118 . The customer selects which temporary activation key to use from a list of keys for all products which the customer has ordered. Computer system  104  then transmits the device ID for mobile device  102  to web server  106 . In another embodiment, mobile device  102  directly transmits the device ID to web server  106 . 
     Using the temporary activation key and its associated customer and software version information, and the device ID, key registration web server  106  creates a permanent registration key at step  120  and stores the permanent key in the registration key list on server  106 . The registration key is created using a key encryption algorithm selected by the seller and includes such information as the customer&#39;s ID, the version number of the software that can be upgraded to, and the device ID. 
     The key registration application software receives the permanent registration key from the registration key list and stores the permanent registration key on mobile device  102  at step  122 , either directly or by first downloading to the customer&#39;s computer  104 . After the registration key is stored in the customer&#39;s mobile device, the key registration application software or the software product itself will allow the user to register the product at step  124 . 
     In addition to creating registration keys for newly purchased products, registration keys can also be created when devices, software, or other products are updated. This may be necessary because the temporary activation keys generally only allow registration keys to be issued for certain versions of a product. When a new version is released, the registration key will not allow access to the updated version. Accordingly, when the seller releases a new version of a software product, a code is put into the registration key list indicating the version number a customer is qualified to receive. When the customer connects to the key registration web service and requests an updated key, a new key is generated by the web service based on this code and is provided to the customer. The customer may then use the new key to register the new version of the software. 
     Registration keys can also be created for trial versions of a product. These trial keys may activate a software product for a specific period of time, and then disallow access upon expiration of that time period. Alternatively, a trial key may allow operation of the software only at a reduced capacity level, such as by disabling certain software functions. 
     The system also allows for the issuance of replacement keys. Replacement keys may be necessary when a customer damages the mobile device on which the software is located and needs to obtain a new device. Because the old registration key was keyed to the unique device ID of the customer&#39;s damaged mobile device, it will not work with a new device. A replacement key can be obtained by accessing the key registration web server and selecting the same temporary activation code as before. The key registration application software transmits the new device ID, and a new registration key is issued. Because this could be done with any number of devices even where there is no damaged device, this activity is noted in a report sent to the seller so that it can monitor replacement key activity for abuse. 
     The disclosure has been described with reference to various specific and preferred embodiments and techniques. However, it should be understood that many variations and modifications can be made while remaining within the spirit and scope of the disclosure.