Communication control method and communication system
AssigneeSeiko Epson Corporation
InventorTakumi Takahashi
Life of this patent
Estimating the term…
Abstract
In a display system, a wireless transmitter receives video data and a CEC command from an AV amplifier, determines whether the received CEC command is a preset command or not, generates a confirmation command if it is determined that the CEC command is a preset command, and transmits the video data and the CEC command received from the AV amplifier and the confirmation command, to a projector. The projector receives the video data, the CEC command and the confirmation command transmitted from the wireless transmitter, and determines whether the received CEC command and confirmation command correspond to each other or not.
Claims13
A communication control method for transmitting a command from a transmitting device to a display device via a wireless connection, the method comprising:
- receiving, by the transmitting device from an external device communicatively connected to the transmitting device, the command and one or more of image data and audio data, the command indicating an operating state of the external device;
- transmitting, by the transmitting device by way of the wireless connection, the command and the one or more of the image data and the audio data to the display device;
- determining, by the transmitting device, whether the command is a predetermined first command configured to trigger generation of a confirmation command;
- if it is determined that the command is not the predetermined first command, returning, by the transmitting device, to an operating state of the transmitting device immediately prior to the receiving of the command;
- and
- if it is determined that the command is the predetermined first command, performing:
- generating, by the transmitting device, the confirmation command, the confirmation command indicating a content of the command received from the external device;
- and
- transmitting, by the transmitting device by way of the wireless connection, the confirmation command to the display device for comparison, by the display device, with stored content indicating the operating state of the external device.
A communication system comprising a transmitting device,
- the transmitting device including:
- a first receiving unit which receives a command and one or more of image data and audio data from an external device, the command indicating an operating state of the external device;
- a first transmitting unit which transmits the command and the one or more of the image data and the audio data to a display device;
- and
- a transmission control unit which
- determines whether the command received by the first receiving unit is a predetermined first command configured to trigger generation of a confirmation command,
- if it is determined that the command is not the predetermined first command, returns the transmitting device to an operating state immediately prior to the reception of the command by the first receiving unit, and
- if it is determined that the command is the predetermined first command, generates the confirmation command indicating a content of the command received by the first receiving unit, and causes the first transmitting unit to transmit the confirmation command to the display device by way of a wireless connection for comparison, by the display device, with stored content indicating the operating state of the external device.
Dependencies are inferred from the claim text.