摘要:
Provided are a method and apparatus for generating a data frame. The method includes generating subframes from at least one media access control (MAC) service data unit (MSDU); generating a retransmission policy field for recording a policy related to a retransmission request, against an error occurring while the subframes are being transmitted, with regard to each of the subframes; and generating the data frame by using the subframes and the retransmission policy field which is generated with regard to each of the subframes.
摘要:
A method and apparatus for protecting against copying high definition (HD) contents transmitted in a wireless HD (WiHD) network by using a WiHD source or sink device, the method including: determining a type of copy protection of contents transmitted in the WiHD network; calculating accumulatively a number of media access control (MAC) sub-packets as a input counter information, wherein the MAC sub packets constitute a MAC payload including the contents; packetizing the type of copy protection and the input counter information into a MAC packet; and transmitting the MAC packet to a WiHD sink device.
摘要:
Provided is a packet processing apparatus and method for audio/video (AV) data transmission, in which a simple protocol optimized for AV data transmission is used. Information distinguishing a data packet from a control packet may be included in a data link layer packet header, so that a data packet and a control packet may be distinguished from each other and thereby may be processed according to different procedures.
摘要:
A connector and an interface device are provided. The connector includes: a plurality of contact locations having sequentially designated numbers; and a housing which houses the plurality of contact locations. The plurality of contact locations include: a first device pair contact location group which is configured to transmit data between a first pair of devices; a second device pair contact location group which is configured to transmit data between a second pair of devices; a third device pair contact location group which is configured to transmit data between a third pair of devices; and a fourth device pair contact location group which is configured to transmit data between a fourth pair of devices.
摘要:
A media player device and a method for wake-up thereof are provided. The method includes: when the media player device is in a standby mode, checking whether an external device is connected to the plurality of contact locations; and if the external device is connected to the media player device, waking up the media player device.
摘要:
Provided are methods and apparatuses for transmitting and receiving data between a device of an audio/video (AV) network and a device of an Ethernet network by using correspondence between an AV network address and a medium access control (MAC) address. A method of transmitting data to a second device by using a first device includes: generating a transmission unit of a second type network in which a second type network address of the second device is set as a destination address; generating a transmission unit of a first type network including the generated transmission unit of the second type network by setting a first type network address of a third device, corresponding to the second type network address of the second device, as a destination address; and transmitting the generated transmission unit of the first type network to the third device.
摘要:
A method and an apparatus for service discovery in a Wi-Fi direct (WFD). The method includes: generating by a first WFD device a service discovery request frame for discovering whether a service is supported by a second WFD device in the WFD network; transmitting the generated service discovery request frame from the first WFD device to the second WFD device; and receiving at the first WFD device a service discovery response frame from the second WFD device in response to the transmitted service discovery request frame, wherein the service discovery request frame and the service discovery response frame are generated by using a Wi-Fi protected setup (WPS) information element (IE).
摘要:
A method and apparatus for providing a user input back channel (UIBC) in an audio/video (AV) source device and an AV sink device communicating according to a wireless fidelity (Wi-Fi) display (WFD) standard is provided. The method includes: setting up an AV control session and an AV data session between the AV source devices according to the WFD standards; enabling the UIBC from the AV sink device to the AV source device by using the AV control session; and transmitting a user input from the AV sink device to the AV source device through the UIBC.
摘要:
Provided are a method and an apparatus for forming a network with various audio/video (AV) devices via a link established by using an AV interface supporting bidirectional data transmission and for transmitting and receiving various types of data via the AV interface.
摘要:
A method and apparatus for transmitting and receiving data. The method and apparatus previously determines a validity of a data transmission path for transmitting a stream from a source device to a sink device. The validity of the transmission path is verified by checking and securing the data transmission path, thereby executing a streaming service based on the validity.