A method for identifying variations introduced in signals transmitted over a signal path, the method comprising sending, over the signal path, one or more test patterns with functional features to a test pattern analyser, wherein said functional features are for determining aspects of variations introduced in the one or more test patterns during transmission over the signal path; and including a data pattern in at least one of the test patterns prior to said sending, said data pattern comprising meta-data on functional features of the at least one test pattern.

Methods, systems, and computer readable media can be operable to monitor for and alert the occurrence of pre-failure indicators at a set-top box (STB) disk. Results of self-monitoring tests, short tests, and maximum/minimum performance tests may be used to identify the potential for a STB disk failure. Moreover, critical error events at the STB may be logged, and the health of the STB disk may be determined based on the logged critical error events. Test results and critical error event logs may be used to predict an impending failure of a STB disk, and a notification may be output to a user or technician indicating the potential need to replace the STB or STB disk.

An output circuit includes a level adjustment circuit and a determination circuit. The output circuit is employed for generating an output to an output terminal of the output circuit, where the output terminal is coupled to a connecting port. The level adjustment circuit is coupled to the output terminal and is employed for generating at least one adjusted signal according to a first voltage signal at the output terminal in a first period and a second voltage signal at the output terminal in a second period. The determination circuit is coupled to the level adjustment circuit and is employed for generating a determination signal according to the at least one adjusted signal, wherein the determination signal indicates whether a load is connected to the connecting port.

A set-top box (STB) determines an occurrence of a first STB error during operation of the STB, and identifies a first error code that corresponds to the first STB error. The STB maps the first error code to a first self-help video of multiple self-help videos stored at the STB, and plays back the first self-video via a display device coupled to the STB.

The present application relates to set top boxes and relates to the inclusion of a diagnostic function in the set top box which may be activated remotely or respond internally to the detection of faults or changes in status. The diagnostic function may emulate key presses from an infrared remote control to perform a test.

A marker generating method is provided for facilitating the finding of positions which correspond to one another among a plurality of images associated with a video signal. A position within an image (800) associated with a video signal is selected, with a cursor (802, 804) to display a marker (812, 822-826) at a position corresponding to the selected position, in a different image (810, 820) associated with the video signal.

A signal adjusting device and method, and a test equipment. The signal adjusting device includes: a level controller, a level circuit, a comparison circuit and a selecting circuit. The level circuit is electrically connected with the selecting circuit; the level controller is configured to perform a level adjustment to a first signal, so as to generate a level signal, and the generated level signal is outputted by the level circuit; the comparison circuit is configured to: determine that the level signal meets a preset condition, and generate and output a corresponding feedback signal to the selecting circuit, in response to determining that the level signal satisfies the preset condition; and the selecting circuit is configured to output, as an adjusted signal, the level signal corresponding to the feedback signal.

A broadcast signal receiving apparatus and a method of controlling thereof are disclosed, and more particularly, to a technology for detecting whether or not an antenna cable is connected to the broadcast signal receiving apparatus. The broadcast signal receiving apparatus includes an antenna connection terminal provide with a detection pin configured to generate a voltage drop by making contact with an antenna cable, and a controller configured to determine whether the antenna cable is connected to the antenna connection terminal by detecting the voltage drop of the detection pin.

A set-top box with self-monitoring and system and method for use of the same are disclosed. In one embodiment of the set-top box, a housing secures a television input, a television output, a processor, memory, and storage therein, which are communicatively interconnected by a busing architecture. The memory is accessible to the processor, and the memory includes processor-executable instructions that, when executed, cause the processor to detect when the television is not being utilized. Responsive thereto, the instructions cause the processor to scan channels received from the television input and generate a composite TV screen image data that may be resolved to a single TV screen image made from an assemblage of TV screen image captures corresponding to the scanned channels.

A display apparatus includes a display; a content receiver configured to receive image content; a communication interface configured to communicate with a service apparatus; a storage configured to store a setting value of factor related to an operation of the content receiver, the communication interface, and the display; and a controller configured to change the setting value of factor related to the operation of at least one of the content receiver, the communication interface, and the display, and to determine whether a risk of an operation error of at least one is caused due to the changed setting value. When it is determined that there is the at least one risk of the operation error due to the changed setting value, the controller is configured to transmit information about the factor and the operation error to a service apparatus through the communication interface.