In one embodiment, a command is received from a video provider at a media rendering device, the command being a command to embed a subscriber ID in at least one video frame in a video stream. A random key, k is also received from the video provider at the media rendering device. An injective transformation is invoked for k and the subscriber ID, the injective transformation generating a sequence of pairs of: near-transparent patterns and corresponding time periods. Logical blocks of the at least one video frame in the video stream are overlaid with one of the near-transparent patterns for its one of the corresponding time periods. Related apparatus, systems, and methods are also described.

In one embodiment, a command is received from a video provider at a media rendering device, the command being a command to embed a subscriber ID in at least one video frame in a video stream. A random key, k is also received from the video provider at the media rendering device. An injective transformation is invoked for k and the subscriber ID, the injective transformation generating a sequence of pairs of: near-transparent patterns and corresponding time periods. Logical blocks of the at least one video frame in the video stream are overlaid with one of the near-transparent patterns for its one of the corresponding time periods. Related apparatus, systems, and methods are also described.

In one embodiment, a command is received from a video provider at a media rendering device, the command being a command to embed a subscriber ID in at least one video frame in a video stream. A random key, k is also received from the video provider at the media rendering device. An injective transformation is invoked for k and the subscriber ID, the injective transformation generating a sequence of pairs of: near-transparent patterns and corresponding time periods. Logical blocks of the at least one video frame in the video stream are overlaid with one of the near-transparent patterns for its one of the corresponding time periods. Related apparatus, systems, and methods are also described.

In one embodiment, a command is received from a video provider at a media rendering device, the command being a command to embed a subscriber ID in at least one video frame in a video stream. A random key, k is also received from the video provider at the media rendering device. An injective transformation is invoked for k and the subscriber ID, the injective transformation generating a sequence of pairs of: near-transparent patterns and corresponding time periods. Logical blocks of the at least one video frame in the video stream are overlaid with one of the near-transparent patterns for its one of the corresponding time periods. Related apparatus, systems, and methods are also described.

A circuit applied to a playback device includes an image format determining circuit, a control circuit, an image processing module and a blending circuit. The image format determining circuit receives an image signal and determines whether the format of the image signal is a standard dynamic range (SDR) or a high dynamic range (HDR) to generate a determination result. The control circuit generates a control signal according to the determination result. The image processing module selects an image processing setting corresponding to one of the SDR format and the HDR format, and processes the image signal according to the image processing setting to generate a processed image signal. The blending circuit superimposes an interface image onto the processed image signal to generate an output image signal to a display.

A circuit applied to a playback device includes an image format determining circuit, a control circuit, an image processing module and a blending circuit. The image format determining circuit receives an image signal and determines whether the format of the image signal is a standard dynamic range (SDR) or a high dynamic range (HDR) to generate a determination result. The control circuit generates a control signal according to the determination result. The image processing module selects an image processing setting corresponding to one of the SDR format and the HDR format, and processes the image signal according to the image processing setting to generate a processed image signal. The blending circuit superimposes an interface image onto the processed image signal to generate an output image signal to a display.