Patent ID: 8065706
Filing Date: 2011-11-22
Classification: H04N

Abstract:
1. A wireless car digital AV system, being installed in a car and comprising: an AV Host comprising a storage device, a wireless network interface, an encryptor; said storage device includes at least one digital AV file; said digital AV file is outputted from said wireless network interface after said digital AV file is encrypted by the encryptor; at least one display device comprising a display-device wireless network interface, a display panel, a user interface, an AV decoder, a panel controller, an input/output interface, an audio output device, a power supply device, a backup battery, and an operating controller, the operating controller is selected from a group consisting of a wireless controller and a wired controller for operating the at least one display device; the at least one display device being connected with said AV Host via the display-device wireless network interface being wirelessly connected to and transmitting and receiving digital signals to the wireless network interface; said at least one display device receives a digital AV file transmitted from said AV Host via the wireless network interface and the display-device wireless network interface; the user interface being installed at exterior of said at least one display device for operations of said display device; the AV decoder being directly wired to said display-device wireless network interface and said user interface to receive, decrypt, decode, and decompress said at least one digital AV file, and output decoded audio and video signals; the panel controller being directly wired to said AV decoder to receive said audio and video signals after said audio and video signals are decompressed by said AV decoder; said panel controller drives said display panel to display; an input/output interface being coupled to said AV decoder to connect an external storage device to the input/output interface to provide digital AV files; the audio output device being coupled to said AV decoder to output said decompressed audio signals; the power supply device being coupled to said user interface, a car power system, said AV decoder, said panel controller, and said input/output interface; the backup battery; the backup battery being coupled to said wireless network interface, said display panel, said AV decoder, said panel controller, and said input/output interface to supply the required electric power; the backup battery being coupled to said power supply device; and a firmware being downloaded from the AV Host; wherein said AV decoder of said at least one display device is directly wired to said display-device wireless network interface, said user interface, said panel controller, said input/output interface, and said audio output device; wherein, after said at least one display device sending a file request to said AV Host using said display-device wireless network interface and said wireless network interface, said AV Host streaming a requested digital AV file through said wireless network interface and said wireless network interface to said at least one display device after said requested digital AV file is encrypted.