Video display system, video display device, its control method, and information storage medium

A method of controlling a control device comprising:

• executing a game program;
• communicating with a video display device to output a video representing a game screen and a sound of a game generated by an execution of the game program;
• receiving instruction operation information from the video display device;
• reducing a first number of channels of sound data representing the sound of the game by deleting the sound data for at least one of the number of channels into a second number of channels of sound data which the video display device can handle for reproduction before encoding the sound data;
• encoding the sound data having a reduced number of channels;
• and
• sending the encoded sound data to the video display device,
• wherein the control device simultaneously reproduces the first number of channels for playback by a device which is different from the video display device, and
• wherein the control device operates in a first mode and a second mode, the control device producing only data used for playback by the control device in the first mode, and the control device producing data used for sending to the video display device in the second mode, the control device being in the first mode before receiving the instruction operation information from the video display device and becoming in the second mode upon receiving the instruction operation information.

A method of controlling a video display device comprising:

• outputting a video representing a game screen and a sound of a game generated by an execution of a game program by a control device configured to communicate with the video display device;
• sending instruction operation information to the control device, the control device executing a processing of the game program based on the instruction operation information;
• and
• receiving encoded sound data from the control device which reduces a first number of channels of sound data representing the sound of the game by deleting the sound data for at least one of the number of channels into a second number of channels of sound data which the video display device can handle for reproduction before encoding the sound data, encodes the sound data having a reduced number of channels after reducing the number of channels, and sends the encoded sound data to the video display device,
• wherein the control device simultaneously reproduces the first number of channels for playback by a device which is different from the video display device, and
• wherein the control device operates in a first mode and a second mode, the control device producing only data used for playback by the control device in the first mode, and the control device producing data used for sending to the video display device in the second mode, the control device being in the first mode before receiving the instruction operation information from the video display device and becoming in the second mode upon receiving the instruction operation information.

A control device comprising:

• a game program execution part configured to execute a game program;
• an output control part configured to communicate with a video display device to output a video representing a game screen and a sound of a game generated by an execution of the game program;
• and
• a receiving part configured to receive instruction operation information from the video display device, wherein
• the output control part reduces a first number of channels of sound data representing the sound of the game by deleting the sound data for at least one of the number of channels into a second number of channels of sound data which the video display device can handle for reproduction before encoding the sound data, encodes the sound data having a reduced number of channels, and sends the encoded sound data to the video display device;
• the control device simultaneously reproduces the first number of channels for playback by a device which is different from the video display device;
• when the control device receives the instruction operation information from the video display device, the output control part reduces the first number of channels of sound data representing the sound of the game by deleting the sound data for at least one of the number of channels into the second number of channels of sound data which the video display device can handle for reproduction before encoding the sound data, encodes the sound data having the reduced number of channels, and sends the encoded sound data to the video display device;
• and
• before the control device receives the instruction operation information, the control device simultaneously reproduces the first number of channels for playback by the device which is different from the video display device.

A control device comprising:

• a game program execution part configured to execute a game program;
• an output control part configured to communicate with a video display device to output a video representing a game screen and a sound of a game generated by an execution of the game program;
• and
• a receiving part configured to receive instruction operation information from the video display device, wherein
• the output control part reduces a first number of channels of sound data representing the sound of the game by deleting the sound data for at least one of the number of channels into a second number of channels of sound data which the video display device can handle for reproduction before encoding the sound data, encodes the sound data having a reduced number of channels, and sends the encoded sound data to the video display device,
• the control device simultaneously reproduces the first number of channels for playback by a device which is different from the video display device, and
• the control device operates in a first mode and a second mode, the control device producing only data used for playback by the control device in the first mode, and the control device producing data used for sending to the video display device in the second mode, the control device being in the first mode before receiving the instruction operation information from the video display device and becoming in the second mode upon receiving the instruction operation information.

A video display device comprising:

• an output part configured to output a video representing a game screen and a sound of a game generated by an execution of a game program by a control device configured to communicate with the video display device;
• a sending part configured to send instruction operation information to the control device, the control device executing a processing of the game program based on the instruction operation information;
• and
• a receiving part configured to receive encoded sound data from the control device which reduces a first number of channels of sound data representing the sound of the game by deleting, the sound data for at least one of the number of channels into a second number of channels of sound data which the video display device can handle for reproduction before encoding the sound data, encodes the sound data having a reduced number of channels after reducing the number of channels, and sends the encoded sound data to the video device,
• wherein the control device simultaneously plays back the first number of channels, and the video display device does not simultaneously play back the first number of channels,
• when the control device receives the instruction operation information from the video display device, the control device reduces the first number of channels of sound data representing the sound of the game by deleting the sound data for at least one of the number of channels into the second number of channels of sound data which the video display device can handle for reproduction before encoding the sound data, encodes the sound data having the reduced number of channels, and sends the encoded sound data to the video display device;
• and
• before the control device receives the instruction operation information, the control device simultaneously reproduces the first number of channels for playback by the device.

A video display device comprising:

• an output part configured to output a video representing a game screen and a sound of a game generated by an execution of a game program by a control device configured to communicate with the video display device;
• a sending part configured to send instruction operation information to the control device, the control device executing a processing of the game program based on the instruction operation information, and
• a receiving part configured to receive encoded sound data from the control device which reduces a first number of channels of sound data representing the sound of the game by deleting the sound data for at least one of the number of channels into a second number of channels of sound data which the video display device can handle for reproduction before encoding the sound data, encodes the sound data having a reduced number of channels after reducing the number of channels, and sends the encoded sound data to the video display device,
• wherein the control device simultaneously plays back the first number of channels, and the video display device does not simultaneously play back the first number of channels, and
• the control device operates in a first mode and a second mode, the control device producing only data used for playback by the control device in the first mode, and the control device producing data used for sending to the video display device in the second mode, the control device being in the first mode before receiving the instruction operation information from the video display device and becoming in the second mode upon receiving the instruction operation information.