VIDEO DISPLAY SYSTEM, DISPLAY DEVICE, PLUG-IN MODULE AND POWER CONTROL METHOD OF PLUG-IN MODULE
First Claim
1. A video display system comprising:
- a display device for displaying pictures; and
a plug-in module which is detachably attached to the display device and transmits video data to the display device,wherein the display device includes;
a first authentication part for executing equipment authentication of the plug-in module;
a first communication part for sending and receiving control signal to and from the plug-in module;
a video data receiver for receiving video data from the plug-in module;
a module power supply part for switching two types of powers, standby power and main power, of the plug-in module; and
a first controller for controlling the module power supply part in accordance with a result of authentication executed by the first authentication part or the control signal; and
the plug-in module includes;
a second authentication part for executing equipment authentication with the display device;
a second communication part for sending and receiving the control signal to and from the display device;
a video data transmitter for transmitting the video data; and
a second controller for controlling the video data transmitter in accordance with a result of authentication executed by the second authentication part or the control signal; and
the first controller controls the module power supply part for switching from standby power to main power after obtaining equipment authentication at the first authentication part or in accordance with the control signal.
1 Assignment
0 Petitions
Accused Products
Abstract
It provides a video display system capable of effective control of power consumption, safe power-off operation, and resetting from a hang-up state by properly setting power supply to a plug-in module in accordance with the operational request and operational status of a digital broadcast receiving device and the plug-in module, a display device, a plug-in module, and a plug-in module power control method. Each of the digital broadcast receiving device and plug-in module includes an authentication part for equipment authentication thereof, CEC communication part for control signal communication, and a video audio transmitter receiver. The digital broadcast receiving device serves for switching the module power supply part for power supply to the plug-in module from standby power to main power in accordance with the control signal after equipment authentication is obtained for the plug-in module.
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Citations
34 Claims
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1. A video display system comprising:
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a display device for displaying pictures; and a plug-in module which is detachably attached to the display device and transmits video data to the display device, wherein the display device includes; a first authentication part for executing equipment authentication of the plug-in module; a first communication part for sending and receiving control signal to and from the plug-in module; a video data receiver for receiving video data from the plug-in module; a module power supply part for switching two types of powers, standby power and main power, of the plug-in module; and a first controller for controlling the module power supply part in accordance with a result of authentication executed by the first authentication part or the control signal; and the plug-in module includes; a second authentication part for executing equipment authentication with the display device; a second communication part for sending and receiving the control signal to and from the display device; a video data transmitter for transmitting the video data; and a second controller for controlling the video data transmitter in accordance with a result of authentication executed by the second authentication part or the control signal; and the first controller controls the module power supply part for switching from standby power to main power after obtaining equipment authentication at the first authentication part or in accordance with the control signal. - View Dependent Claims (2)
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3-14. -14. (canceled)
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15. A display device with a detachable plug-in module which transmits video data used in the video display system;
- comprising;
an authentication part for executing equipment authentication of the plug-in module; a communication part for sending and receiving control signal to and from the plug-in module; a video data receiver for receiving video data of the plug-in module; a module power supply part for switching two types of powers, standby power and main power, of the plug-in module; and a controller for controlling the module power supply part in accordance with a result of authentication executed by the authentication part or the control signal, wherein the controller controls the module power supply part for switching from standby power to main power after obtaining equipment authentication at the authentication part or in accordance with the control signal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
- comprising;
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24-25. -25. (canceled)
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26. A plug-in module power control method for controlling power supply to the plug-in module from the display device,
wherein a video display system includes a display device for displaying pictures, and a plug-in module, detachably attached to the display device, for transmitting video data to the display device, the method comprising: -
a step of executing equipment authentication of the plug-in module with the display device; and a step of control for switching the power supply of the plug-in module from standby power to main power after the equipment authentication is obtained. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification