WIRELESS TRANSMISSION SYSTEM AND WIRELESS TRANSMISSION METHOD
First Claim
1. A wireless transmission system comprising:
- a first wireless communication device having a CEC control portion capable of transmitting/receiving a CEC message in HDMI to/from a display device; and
a second wireless communication device having a CEC control portion capable of transmitting/receiving a CEC message in HDMI to/from an AV device, the wireless transmission system performing transmission/reception of a CEC message between the display device and the AV device through wireless communication between the first wireless communication device and the second wireless communication device, whereinthe CEC control portion of the first wireless communication device using a logical address corresponding to a device type of the AV device to transmit/receive a CEC message to/from a CEC control portion disposed in the display device,the CEC control portion of the second wireless communication device using a logical address corresponding to a device type of the display device to transmit/receive a CEC message to/from a CEC control portion disposed in the AV device.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are a wireless transmission system and a wireless transmission method that prevent CEC protocols from being affected by wireless communication transmission delays or buffering delays and failing when CEC communication is performed wirelessly in the HDMI standard. The CEC control unit of a first wireless communication device (illustrated with a receiver (3)) exchanges CEC messages with the CEC control unit provided for a display device (illustrated with a monitor (4)) using a logical address corresponding to the device type of the AV device (illustrated with STB (1)). The CEC control unit of a second wireless communication device (illustrated with a transmitter (2)) exchanges CEC messages with the CEC control unit provided for STB (1) using a logical address corresponding to the device type of the monitor (4).
16 Citations
6 Claims
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1. A wireless transmission system comprising:
- a first wireless communication device having a CEC control portion capable of transmitting/receiving a CEC message in HDMI to/from a display device; and
a second wireless communication device having a CEC control portion capable of transmitting/receiving a CEC message in HDMI to/from an AV device, the wireless transmission system performing transmission/reception of a CEC message between the display device and the AV device through wireless communication between the first wireless communication device and the second wireless communication device, whereinthe CEC control portion of the first wireless communication device using a logical address corresponding to a device type of the AV device to transmit/receive a CEC message to/from a CEC control portion disposed in the display device, the CEC control portion of the second wireless communication device using a logical address corresponding to a device type of the display device to transmit/receive a CEC message to/from a CEC control portion disposed in the AV device. - View Dependent Claims (2, 3, 4, 5)
- a first wireless communication device having a CEC control portion capable of transmitting/receiving a CEC message in HDMI to/from a display device; and
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6. A wireless transmission method using a first wireless communication device having a CEC control portion capable of transmitting/receiving a CEC message in HDMI to/from a display device and a second wireless communication device having a CEC control portion capable of transmitting/receiving a CEC message in HDMI to/from an AV device to perform transmission/reception of a CEC message between the display device and the AV device through wireless communication between the first wireless communication device and the second wireless communication device, the method including the steps of:
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using a logical address corresponding to a device type of the AV device by the CEC control portion of the first wireless communication device to transmit/receive a CEC message to/from a CEC control portion disposed in the display device, and using a logical address corresponding to a device type of the display device by the CEC control portion of the second wireless communication device to transmit/receive a CEC message to/from a CEC control portion disposed in the AV device.
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Specification