An image display device includes a tuner configured to receive a RF broadcast signal; a display; a first input configured to receive a first image signal input from a first external device connected to the image display device; a second input configured to receive a second image signal input from a second external device connected to the image display device; and a controller coupled with the display, the first input and the second input. Further, the controller is configured to display, on the display, a plurality of icons including a first icon and a second icon. In addition, the first icon includes a first default image identifying the first input and the second icon includes a second default image identifying the second input, change the first default image to a first video image currently being played on the first external device and corresponding to the first image signal received from the first external device in response to the first icon being selected if the first external device is connected to the image display device, and change the first video image back to the first default image in response to the second icon being selected.

An image display system includes: a display device; an image supply device coupled to the display device in such a way as to be able to bidirectionally communicate and supplying an image signal; and an operation terminal having a plurality of operation buttons. The operation terminal transmits an operation signal in response to an operation on the operation button. The display device displays a first image supplied from the image supply device and a second image generated by the display device. On receiving the operation signal, the display device decides a degree of priority of the first image and the second image. The display device transmits a signal to stop updating the first image to the image supply device and executes processing based on the second image when the degree of priority of the second image is higher than the degree of priority of the first image.

An image display system includes: a display device; an image supply device coupled to the display device in such a way as to be able to bidirectionally communicate and supplying an image signal; and an operation terminal having a plurality of operation buttons. The operation terminal transmits an operation signal in response to an operation on the operation button. The display device displays a first image supplied from the image supply device and a second image generated by the display device. On receiving the operation signal, the display device decides a degree of priority of the first image and the second image. The display device transmits a signal to stop updating the first image to the image supply device and executes processing based on the second image when the degree of priority of the second image is higher than the degree of priority of the first image.

Systems and methods are disclosed for establishing a video connection between a client device and a notary support terminal while enabling the client device and notary support terminal to notarize a digital document. In particular, the client device can display multiple panes simultaneously, the multiple panes including a first pane that displays the video chat and a second pane that displays at least one notarization interface for notarizing the digital document. While the client device displays the multiple panes and during the video chat, the disclosed systems can notarize the digital document by authenticating the user of the client device, collecting signatures from the user of the client device and the notary associated with the notary support terminal, and applying an electronic notary seal to the digital document.

Systems and methods are disclosed for establishing a video connection between a client device and a notary support terminal while enabling the client device and notary support terminal to notarize a digital document. In particular, the client device can display multiple panes simultaneously, the multiple panes including a first pane that displays the video chat and a second pane that displays at least one notarization interface for notarizing the digital document. While the client device displays the multiple panes and during the video chat, the disclosed systems can notarize the digital document by authenticating the user of the client device, collecting signatures from the user of the client device and the notary associated with the notary support terminal, and applying an electronic notary seal to the digital document.

Provided is a data stream allocation system capable of suppressing inequality in processing loads on a plurality of servers and delays in analysis processing at the servers when the servers analyze the objects of analysis using data streams obtained from a plurality of camera systems. The allocation determination unit 4 allocates data streams obtained from a plurality of camera systems to a plurality of servers according to the unevenness in the number of objects in the surveillance region. Then, the distribution unit 5, in accordance with the results of the allocation of the data streams to the plurality of servers, distributes each of the data streams obtained from the camera systems to the server to which the data stream has been allocated.

Display with an appropriate luminance dynamic range is realizable on a receiving side. A gamma curve is applied to input video data having a level range from 0% to 100%*N (N: a number larger than 1) to obtain transmission video data. This transmission video data is transmitted together with auxiliary information used for converting a high-luminance level on the receiving side. A high-level side level range of the transmission video data is converted on the receiving side such that a maximum level becomes a predetermined level based on the auxiliary information received together with the transmission video data.

Display with an appropriate luminance dynamic range is realizable on a receiving side. A gamma curve is applied to input video data having a level range from 0% to 100%*N (N: a number larger than 1) to obtain transmission video data. This transmission video data is transmitted together with auxiliary information used for converting a high-luminance level on the receiving side. A high-level side level range of the transmission video data is converted on the receiving side such that a maximum level becomes a predetermined level based on the auxiliary information received together with the transmission video data.

Aspects of the disclosure provide for a method. In some examples, the method includes receiving a video stream comprising multiple frames, analyzing the video stream to compare data values representing an image pixel at a specified location in a first of the frames to programmed data values for the image pixel at the specified location in the first of the frames, determining that the video stream includes incorrect data responsive to the data values representing the image pixel at the specified location in the first of the frames being different from the programmed data values for the image pixel at the specified location in the first of the frames; and taking action responsive to determining that the video stream includes incorrect data.

A video conference system including a transmitter device and a receiver device is provided. The transmitter device includes a transmitter control unit, a transmitter input interface, a transmitter video circuit and a first wireless transmission module. The transmitter control unit is coupled to a video output port of an information system and receive a first video data from the video output port. The transmitter input interface receives a second video data from a first video source. The transmitter video circuit combines the first video data and the second video data as a combined video data. The first wireless transmission module transmits the combined video data to the receiver device. The receiver device, coupled to the display device, includes a second wireless transmission module, which receives the combined video data. The receiver device transmits the combined video data to the display device.