| Patent application number | Description | Published |
|---|
| 20090102927 | WIRELESS TRANSMISSION SYSTEM FOR REGISTERING SOURCE DEVICE IN SINK DEVICE - A wireless communication system is disclosed, which includes a source device having a high-rate wireless transmitter circuit for wirelessly transmitting a video signal, and a sink device having a high-rate wireless receiver circuit for receiving the wirelessly transmitted video signal. The source device includes a memory for storing a device ID of the source device and a low-rate wireless transceiver circuit, in addition to the high-rate wireless transmitter circuit. The low-rate wireless transceiver circuit wirelessly transmits a control signal including the device ID read-out from the memory to the sink device, and wirelessly receives a registration control signal for registering the source device in the sink device, from the sink device. | 04-23-2009 |
| 20090138779 | WIRELESS COMMUNICATION DEVICE TRANSMITTING AND RECEIVING CEC MESSAGES OF HDMI - When a wired interface circuit receives a CEC message destined for a node device connected through a wireless transceiver circuit, a CEC controller of a wireless node device outputs an ACK for the received CEC message from the wired interface circuit, transmits a wireless data packet containing contents of the CEC message from the wireless transceiver circuit, and waits for the wireless interface transceiver circuit to receive a wireless ACK packet for the transmitted wireless data packet. | 05-28-2009 |
| 20090210539 | HDMI LOGICAL ADDRESS ASSIGNMENT METHOD FOR USE IN WIRELESS COMMUNICATION SYSTEM - A CEC controller of a wireless node device determines a destination logical address of a polling message received through a wired interface circuit based on an address list table in an address list memory when the polling message is received from a wired interface circuit, and transmits an ACK for the received polling message through the wired interface circuit in the case that the destination logical address of the polling message is a logical address of a node device connected over a wireless interval. | 08-20-2009 |
| 20090260043 | WIRELESS TRANSMISSION SYSTEM FOR WIRELESSLY CONNECTING SIGNAL SOURCE APPARATUS AND SIGNAL SINK APPARATUS - An adapter apparatus wirelessly transmits a TMDS signal to an adapter apparatus using a first radio channel, wirelessly transmits a DDC downstream signal and a CEC downstream signal to an adapter apparatus using a second radio channel, and receives a radio signal including a DDC upstream signal and a CEC upstream signal from the adapter apparatus using the second radio channel. The adapter apparatus receives the TMDS signal using the first radio channel, receives the radio signal including the DDC downstream signal and the CEC downstream signal using the second radio channel, and wirelessly transmits the DDC upstream signal and the CEC upstream signal to the adapter apparatus using the second radio channel. | 10-15-2009 |
| 20090290600 | COMMUNICATION SYSTEM PROVIDED WITH TRANSMITTER FOR TRANSMITTING AUDIO CONTENTS USING PACKET FRAME OF AUDIO DATA - An audio frame format includes a channel field indicating a number of audio multi-channels, an ignore bit indicating whether or not an audio sample is present in a predetermined region of a packet format, an A channel audio sample field for transmitting the audio sample, and a B channel audio sample field for transmitting the audio sample, and a payload of the packet includes a repetition of an audio frame. | 11-26-2009 |
| 20090322948 | WIRELESS COMMUNICATION SYSTEM FOR WIRELESSLY TRANSMITTING SETTING INFORMATION OF DISPLAY UNIT - In a wireless communication system including a source device for wirelessly transmitting a video signal, and a sink device for receiving the wirelessly transmitted video signal and displaying the received video signal on a display, the sink device reads out EDID information from a ROM and wirelessly transmits a wireless data signal including the EDID information to the source device. The source device wirelessly receives the wire less data signal including the EDID information and wirelessly transmitted from the sink device, and wirelessly transmits the video signal to the sink device based on the EDID information. | 12-31-2009 |
| 20100050214 | RADIO COMMUNICATION DEVICE - A wireless node device determines an origination port number, communicates with the wireless node device to exchange a destination port number determined by the wireless node device and the origination port number determined by the wireless node device, associates the origination port number with the destination port number, obtains input formats supported by the wireless node device, reserves wireless resources for wirelessly transmitting the content data, determines one of the obtained input formats as an output format and notifies the wireless node device of the determined output format, and wirelessly transmits the content data to the wireless node device through a pair of ports indicated by the origination port number and the destination port number associated with each other. | 02-25-2010 |
| 20100061406 | CLOCK SYNCHRONIZATION METHOD FOR USE IN COMMUNICATION SYSTEM FOR TRANSMITTING AT LEAST ONE OF VIDEO DATA AND AUDIO DATA - A source device counts a clock CLKpixel for pixel data using a transmitting counter, adds a counted value Csource(t) of the transmitting counter at a timing of transmitting a video packet Pvideo to the sink device to a header part of the video packet Pvideo as a time stamp value Csource(t), and transmits the video packet Pvideo to the sink device. The sink device receives the video packet Pvideo, extracts the time stamp value Csource(t) from the header part of the video packet Pvideo, generates a fixed reference clock CLKref based on the counted value Csource(t) of the transmitting counter using a first PLL, circuit, and generates the clock CLKpixel for the pixel data of the source device based on the reference clock CLKref using a second PLL circuit. | 03-11-2010 |
| 20100067393 | Packet round trip time measuring method - When a source device measures a packet round trip time RTT from the source device to a sink device, a band management unit allocates a reservation period for transmitting an RTT test command from the source device to the sink device and a reservation period for transmitting an RTT response setting request command from the sink device to the source device within a super frame period. At a start timing of the reservation period, a controller transmits the RTT test command and starts measuring the RTT. Upon receiving the RTT response setting request command, the controller finishes measuring the RTT. | 03-18-2010 |
| 20100074134 | BAND ALLOCATION METHOD FOR ALLOCATING A PAIR OF RESERVATION PERIODS FOR MEASURING PACKET ROUND TRIP TIME - Upon measuring a packet round trip time RTT from a source device to a sink device, the source device requests a band management unit of a network to allocate bands for round trip packets. The band management unit notifies a reservation period Tsource for transmitting a packet from the source device to the sink device and a reservation period Tsink for sending back a packet from the sink device to the source device, using a beacon signal. The reservation period Tsource is allocated within a time period starting from a middle timing of a time cycle Tbeacon of the beacon signal, and the reservation period Tsink is allocated at a middle timing between the reservation period Tsource and the beacon signal right after the reservation period Tsource. | 03-25-2010 |
| 20100165912 | WIRELESS COMMUNICATION SYSTEM FOR WIRELESSLY TRANSMITTING AND RECEIVING CEC MESSAGE - In a wireless communication system including a source device and a sink device for wirelessly transmitting and receiving a CEC message specified in an HDMI standard, a CEC controller of the source device generates and outputs a CEC frame including the CEC message. A controller generates a wireless data packet including the CEC message in the generated CEC frame. A wireless transceiver circuit wirelessly transmits a wireless signal including the generated wireless data packet to the sink device, and receives a wireless signal including a wireless ACK packet and wirelessly transmitted from the sink device in response to the wireless data packet in the wirelessly-transmitted wireless signal. | 07-01-2010 |
| 20100272054 | BAND ALLOCATION METHOD - In response to a video and audio bandwidth allocation request command signal and an audio bandwidth allocation request command signal from a source device, a coordinator device allocates a first reservation period for transmitting AV stream data from the source device to a sink device and a second reservation period for transmitting audio stream data from the source device to a sink device within a predetermined frame period, and transmits a beacon signal including information on allocation of the first reservation period and the second reservation period. | 10-28-2010 |
| 20100289871 | Method of transmitting video data for wirelessly transmitting three-dimensional video data - A source device transmits an output format notify message for video data to a sink device before transmitting the video data to the sink device, the output format notify message including a 3D field storing data for identifying whether the video data to be transmitted is two-dimensional video data or three-dimensional video data transmitted using frame packing. In response to this, the sink device identifies a type and a format structure of the video data, and decodes the received video data based on the identified type and format structure of the video data. | 11-18-2010 |
| 20100289872 | Method of transmitting video data for wirelessly transmitting three-dimensional video data - A sink device ( | 11-18-2010 |
| 20110019623 | WIRELESS COMMUNICATION DEVICE FOR PROCESSING PACKET INCLUDING AT LEAST ONE OF VIDEO OUTPUT FORMAT OF VIDEO DATA AND AUDIO OUTPUT FORMAT OF AUDIO DATA - A wireless node device receives data island packets from an HDMI device with a time cycle, and prohibits wireless transmission of a data island notification message when a video output format and an audio output format included in the data island packet are the same as a video output format and an audio output format included in the data island packet, respectively. | 01-27-2011 |
| 20110038338 | UNIQUE IDENTIFIER ASSIGNMENT METHOD FOR USE IN WIRELESS COMMUNICATION SYSTEM - A CEC controller of a wireless node device determines a destination logical address of a polling message received through a wired interface circuit based on an address list table in an address list memory when the polling message is received from a wired interface circuit, and transmits an ACK for the received polling message through the wired interface circuit in the case that the destination logical address of the polling message is a logical address of a node device connected over a wireless interval. | 02-17-2011 |
| 20110072473 | ADAPTER DEVICE FOR WIRELESSLY TRANSMITTING VIDEO SIGNAL FROM SOURCE DEVICE TO ADAPTER DEVICE FOR SINK DEVICE - An adapter device connected to a source device wirelessly receives an EDID response message signal including data on a plurality of video display formats and a plurality of audio output formats of the sink device from an adapter device. Further, the adapter device selects one video display format having highest data transmission rate and one audio output format having highest data transmission rate based on received data on the video display formats and the audio output formats, and reserves a band for wirelessly transmitting a video signal having a selected video display format and an audio signal having a selected audio output format as a band for wirelessly transmitting an audio and visual signal from the source device | 03-24-2011 |
