Vmedia Research, Inc. Patent applications |
Patent application number | Title | Published |
20090147655 | Miniaturized disc drive containing DVD-compatible optical controller - A miniature optical disc drive includes a DVD-compatible optical controller and a cartridge load module designed to hold a cartridge containing a 32 mm optical data storage disc. | 06-11-2009 |
20090144763 | Small form factor optical data storage disc and disc drive for use in mobile electronic device - An optical data storage disc measuring 32 mm in diameter contains 1 GB of data per layer. The data is designed to be readable by a disc drive that contains a blue wavelength laser, an objective lens having a numerical aperture of 0.72 and conventional DVD controller electronics. This combination of elements allows a full-length movie or a video game to be displayed with DVD-quality on a cell phone or other portable hand held device. | 06-04-2009 |
20090136218 | Multimedia presentation format - A format for accessing content such as a full-length movie from an optical disc uses an XML Description File stored on the disc to generate one or more screens that a user employs to access the content. To increase the efficiency of accessing data, data files that describe the content of the disc are located near the beginning of the video zone whereas larger data files, such as presentation files, are located at the end of the video zone. To reduce the possibility of incompatibilities between commands, a limited set of application program interface (API) commands is defined for use in an XML Description File. To maximize the vertical data recorded on the disc when the source aspect ratio is high, two, independent horizontal and vertical distortion factors are used. The audio and video tracks are interleaved into 1000 millisecond blocks and are demultiplexed by the application player during playback. | 05-28-2009 |
20090129248 | Small form factor optical disc drive for use in mobile electronic device - A small form factor disc drive is structured to hold and play an optical data storage disc measuring approximately 32 mm in diameter and containing 1 GB of data per layer. The disc drive contains a blue wavelength laser, an objective lens having a numerical aperture in the range of 0.70-0.78 and conventional DVD-compatible controller electronics. This unique combination of elements allows a full-length movie or a video game to be displayed with DVD-quality on a cell phone or other portable hand held device. | 05-21-2009 |
20080282282 | Method of fabricating cartridge for miniature optical data storage disc - A cartridge for an optical data storage disc includes a monolithic shell and a sheet metal cover plate. The shell includes lateral walls and a floor that together define a cavity that holds an optical data storage disc. The cover plate is attached to the shell, with the cover plate abutting the top surfaces of the lateral walls of the shell. The optical disc is housed in the disc cavity, with the data side of the disc facing the cover plate. A sheet metal shutter is wrapped around an edge of the cartridge and is slideable between an open position, wherein a portion of the optical disc is exposed through a shutter window in the cover plate and a closed position wherein the shutter overlies the shutter window. The cartridge is very strong and is easy to fabricate. The use of sheet metal next to the data side of the optical disc allows the data on the disc to be read or recorded with a very short wavelength laser. | 11-13-2008 |
20080273115 | Multimedia presentation format - A format for accessing content such as a full-length move from an optical disc uses an XML description file stored on the disc to generate one or more screens that a user employs to access the content. The decoding requirements of a hardware or software player are reduced by discarding specific elements of an encoding standard such as MPEG4 that is used to encode the content on the disc. The maximum average and peak bitrates at which the data is transferred are limited to further reduce the demands on the player. | 11-06-2008 |