Abstract:
Shielding device for web cameras built into mobile devices such as smart-phones, tablets, netbooks and laptop computers providing such web cameras with a security cover to prevent unintentional or malicious recording of video or images. This security cover or lid allows for parental control through its activation via a driving elements which only the administrator or owner of the device possesses.

Description:
OBJECT OF THE INVENTION 
     The object of this invention is to provide mobile devices such as smart-phones, tablets, netbooks and laptop computers with a security cover for built-in web cameras to prevent unintentional or malicious recording of video and images. The present technical solution to the aforementioned problem focuses on hardware-based—instead of software-based—measures, thus giving the user the certainty that such measures are not being hacked through the use of malware. The shielding mechanism for cameras proposed in this invention allows for parental control of its activation, thus extending the merits of the currently available shielding devices for web cameras used in mobile devices both at home and at work. 
     TECHNICAL SECTOR 
     This invention relates generally to the industrial field of Telecommunications and more specifically to devices using image and video recording such as smart-phones, tablets, netbooks and laptop computers. It is equally applicable to other recording devices connected to the monitoring of goods and equipment and to alarm systems. 
     BACKGROUND OF THE INVENTION 
     Unfortunately, numerous cases of malicious recording of video or images have been reported. This has led to the development of various devices designed to prevent unwanted recording of images or video. On the one hand, several software-based solutions exist although they do not provide sufficient guarantees for end users, since safe operation of the software or of the software-based measures cannot be guaranteed. To solve this problem, several shielding devices that can be attached to the web cameras to obstruct their field of view have been developed. Such shielding devices can be locked in two positions, an open position and a closed position, and some of them are designed to be installed during the device manufacturing process. This is the case, for example, of the Microsoft patent US2005/0068423, “Method and system for capturing video on a personal computer”, dated Mar. 31, 2005, in which users may use an actuator for mechanically opening a cover located in front of the camera. The utility model CN200721762, filed by Zhou Y, uses a switch installed in the webcam itself that cuts off the electrical power supply when the camera is not in use. Other devices link the opening of the shielding cover with the start of the recording process, thus offering a shielding device easily controllable by users. This is true of U.S. Pat. No. 7,581,893, “U-cover Camera Phone”, dated Sep. 1, 2009. Patent US2011/0115924 “Image pickup device”, filed by Primax Electronics, presents a camera shielding device based on a shielding cover in which the driving element is an electromagnet, but control takes place through video monitoring software. Patent CN101980099, dated Feb. 23, 2011, addresses this issue through the monitoring of opacity on a liquid crystal display. 
     On the other hand, there are other straightforward solutions to cover the lens of web cameras that can be easily incorporated into such devices as shown in patent application PCT WO2009/137600 “Computer, Pda or telephone lens cover”, dated May 6, 2009. The utility model ES1077518 U “Web cameras protection device”, filed by Longares Monreal on Aug. 3, 2012, presents a device with a sliding or swinging shielding cover. Additionally, the utility model U 2012000157 “Shielding device for web cameras built into desktop computers”, filed by Guillermo Olivencia Cerezo on Feb. 20, 2012, simply describes a sliding shielding cover located in front of the camera lens. 
     There are no known shielding devices for web cameras allowing for parental control by users. 
     DESCRIPTION OF THE INVENTION 
     This invention relates to a shielding device for cameras built into mobile devices such as smart-phones, tablets, netbooks and laptop computers providing them with a security cover for built-in cameras to prevent unintentional or malicious recording of video and images. The shielding device proposed in this invention allows for parental control, thus extending the merits of the currently available shielding devices for web cameras used in mobile devices both at home and at work. 
     The security cover for web cameras comprising the object of this invention is preferably made of plastic material and presents a through aperture ( 2 )  FIG. 1  placed concentrically to the camera of the device to be protected, the diameter of such aperture being sufficient to prevent obstruction of the field of view when the camera is on. The security cover is attached to the device through conventional means, such as adhesive bonding. Inside the security cover there is a sheet made of a metallic material of a sort that can be attracted by a magnet, such as iron, nickel or cobalt alloys. This sliding cover is housed within the interior of the security cover and may be moved in a linear way since it slides into conventional hollow spaces in the interior of the security cover body. The sliding cover ( 3 ) can be moved to the open position, in which the aperture is exposed and the device camera can be used,  FIG. 3 , or to the closed position, where the aperture is closed and therefore the device camera cannot be used,  FIG. 4 . 
     The security cover on web cameras with parental control includes a driving element ( 4 ), this being a magnet; by placing this magnet on the security cover, we can use the magnetic attraction force between the magnet and the sliding cover to move the sliding cover. Thus, the aperture exposing the camera of the device we are monitoring can be closed, it being very difficult for other users to re-open the aperture without the driving element ( 4 ). 
     To lock the end positions of the sliding cover and prevent it from freely sliding when the device is moved, two magnets ( 5 ) have been built into the security cover in the end positions of the trajectory of the sliding cover, i.e., with the aperture exposing the camera lens open or with the aperture closed. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In order to better understand the concepts described in this report drawings are attached, as examples only, with the relevant description of the figures for the proposed invention. 
       Description of Figures 
         FIG. 1 : Isometric view of the security cover ( 1 ) in which the through aperture ( 2 ) whereby the lens of the camera is exposed and the driving element ( 4 ) are visible. 
         FIG. 2 : Exploded isometric view of the security cover in which the sliding cover ( 3 ) is visible. 
         FIG. 3 : Isometric view comprising a partial section of the front side of the security cover to show the position of the sliding cover ( 3 ), in which the aperture exposing the lens of the camera is not closed. The driving element located on the sliding cover is also visible. 
         FIG. 4 : Isometric view comprising a partial section of the front side of the security cover to show the position of the sliding cover ( 3 ), in which the aperture exposing the lens of the camera is closed. The driving element located on the sliding cover is also visible. 
         FIG. 5 : Isometric view comprising a partial section of the front side of the security cover in which the sliding cover ( 3 ) can be seen closing half of the aperture. The magnets used to secure the position of the sliding cover ( 5 ) are visible at both ends of the sliding trajectory. 
         FIG. 6 : Security cover ( 1 ) installed on the device. 
     
    
    
     DESCRIPTION OF THE PREFERRED DESIGN 
     The preferred design is described as follows by way of example, with the materials to be used for manufacture of the new folding container being independent to the object of the invention, as are the methods of application and all accessory details that arise, provided that they do not affect the essentials of the invention. 
     The preferred design method of the security cover on web cameras with parental control is provided: 
     The security cover is preferably made of plastic material and presents a through aperture ( 2 )  FIG. 1  placed concentrically to the camera of the device to be protected, the diameter of this aperture being sufficient to prevent obstruction of the field of view when the camera is on. The security cover is attached to the device through conventional means, such as adhesive bonding. Inside the security cover there is a sheet made of a metallic material that can be attracted by a magnet, such as iron, nickel or cobalt alloys. This sliding cover is housed within the interior of the security cover and may be moved in a linear way since it slides into conventional hollow spaces in the interior of the security cover body. The sliding cover ( 3 ) can be moved to the open position, in which the aperture is exposed and the device camera can be used,  FIG. 3 , or to the closed position, where the aperture is closed and therefore the device camera cannot be used,  FIG. 4 . 
     The security cover on web cameras with parental control includes a driving element ( 4 ), this being a magnet; by placing this magnet on the security cover, the magnetic attraction force between the magnet and the sliding cover can be used to move the sliding cover. Thus, the through aperture exposing the camera of the device we are monitoring can be closed, it being very difficult for other users to re-open the aperture without the driving element ( 4 ). 
     To lock the end positions of the sliding cover and prevent it from freely sliding when the device is moved, two magnets ( 5 ) have been built into the security cover in the end positions of the trajectory of the sliding cover, i.e., with the aperture exposing the camera lens open or with the aperture closed.