H04N21/43635

Connecting securely to a wireless display from BIOS

During the boot process, a secure wireless display connect module of the BIOS can authenticate a wireless display and determine whether the wireless display can comply with the HDCP. When the secure wireless display connect module determines that the wireless display is HDCP compliant, the secure wireless display connect module can create an ACPI secure blob in which is stored a shared session key generated as part of determining that the wireless display is HDCP compliant. A video authentication session module of the BIOS can then retrieve this shared session key from the ACPI secure blob and use it to encrypt video frames that are to be sent to the wireless display. The video authentication session module may additionally embed a session ID and a timeout into each video frame which the wireless display can employ to detect when the video frame should no longer be displayed.

Combined Media Capability for Multiple Media Devices
20230106992 · 2023-04-06 · ·

Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for a media device receiving from a source media device a request about a media capability of the media device, and identifying a data block indicating a default capability of the media device. The media device can further select a data unit of the data block to be replaced based on a media capability of a downstream media device attached to the media device. Afterward, the media device can modify the data block by replacing the selected data unit by information indicating the media capability of the downstream media device to generate a modified data block to represent a combined media capability of the media device and the downstream media device. In addition, the media device can send the modified data block to the source media device.

DISPLAY DEVICE AND CONTROL METHOD THEREOF
20220319389 · 2022-10-06 ·

A display device includes a controller, a display processor, a resolution converter, and a display screen. The controller, in response to first request of setting a current signal source type to a first signal source type which is a type of a signal source for providing display data having a target resolution and a first definition, generates and transmits a first control signal corresponding to the first request. The display processor receives and forwards the first control signal from the controller. The resolution converter converts the initial display data into first display data having a target resolution and a first definition in response to the first control signal, and transmits the first display data to the display processor. The target resolution is greater than the initial resolution. The first definition is greater than a definition of display data obtained by stretching the initial display data and having the target resolution.

DISPLAY DEVICE AND CONTROL METHOD THEREFOR

A display device and a control method therefor are disclosed. The display device includes: a display; a transmitter configured to transmit an infrared (IR) signal; and one or more processors configured to: control the display to display a multi-screen including a plurality of images based on a plurality of image signals received from a plurality of source devices, each of the plurality of source devices using a same IR protocol; perform, based on a user command indicating a first image from among the plurality of images, a process for selectively controlling a first source device, from among the plurality of source devices, which provides the first image; and transmit an IR signal for selectively controlling the first source device through the transmitter.

System and method for optimized appliance control

In response to a detected presence of an intended target appliance within a logical topography of controllable appliances identity information associated with the intended target appliance is used to automatically add to a graphical user interface of a controlling device an icon representative of the intended target appliance and to create at a Universal Control Engine a listing of communication methods for use in controlling corresponding functional operations of the intended target appliance. When the icon is later activated, the controlling device is placed into an operating state appropriate for controlling functional operations of the intended target appliance while the Universal Control Engine uses at least one of the communication methods to transmit at least one command to place the intended target appliance into a predetermined operating state.

Set-top box with enhanced content and system and method for use of same
11653049 · 2023-05-16 · ·

A set-top box with enhanced content and system and method for use of the same are disclosed. In one embodiment of the set-top box, a wireless transceiver is located within a housing, which also interconnectively includes a television input, a television output, a processor, and memory. The set-top box provides a fully tuned signal including general content via the television output to a display or a television, for example. The set-top box may also identify a proximate wireless-enabled interactive programmable device and responsive to identifying the proximate wireless-enabled interactive device, forward a fully tuned signal including custom content relative to a group identification associated with the proximate wireless-enabled interactive programmable device.

Methods and systems for implementing legacy remote and keystroke redirection

Methods and systems for routing key commands received from a remote-control device are provided. The method and/or system may include receiving, at a device, a key command from the remote-control device, generating a first message that includes the key command, sending, from the device, the first message to a keystroke router, and determining, at the keystroke router, a system network controller associated with the device. Moreover, the keystroke router may send the key command to the system network controller.

Signal transmission device and signal transmission method
11641291 · 2023-05-02 · ·

According to one embodiment, a signal transmission device AC-coupled with a reception device through a digital transmission line, includes transmitting circuitry configured to transmit a differential signal to the digital transmission line, the differential signal including a first signal and a second signal that are based on an encoded bit serial input signal, wherein absolute values of amplitudes of the first and second signals are 857.14 (mV) or larger.

DISPLAY DEVICE AND METHOD OF OPERATING THE SAME
20230139280 · 2023-05-04 · ·

A display device includes a display, a network interface configured to wirelessly communicate with a camera device or a server, an external device interface configured to communicate with the camera device through high definition multimedia interface-consumer electronics control (HDMI-CEC), and a controller configured to display a camera service list including a plurality of camera service items respectively corresponding to a plurality of camera service apps on the display upon connection with the camera device, to transmit, to the camera device, an execution request of a camera service app corresponding to a selected camera service item in response to selection of any one of the plurality of camera service items, and to switch external input to the camera device according to the execution request.

HDMI RECEIVING CIRCUIT AND METHOD FOR DETERMINING TRANSMISSION MODE
20170374242 · 2017-12-28 ·

A High-Definition Multimedia Interface (HDMI) receiving circuit receives an image signal and an input clock transmitted via HDMI and generates output data. The HDMI receiving circuit includes: a sampling circuit, sampling the image signal according to a transmission mode and the input clock to generate the output data; a data comparison circuit, coupled to the sampling circuit, determining whether the output data includes predetermined data to generate a determination result; and a control circuit, coupled to the sampling circuit and the data comparison circuit, determining the transmission mode according to the determination result.