There is provided a system and method for the synchronizing on-air commercial programming with interactive applications, providing interactive content synchronized with on-air television programming. There is provided a system comprising a client device with a display device and an input device and running a synchronization application. The client device receives digital data transmitted from a server, and transmits user feedback information generated from user interactions with the digital data back to the server. The digital data are interactive advertisements, such as online social games, that increase users' awareness of the advertised products or messages. The digital data are delivered to the user's client device in synchronization with the broadcasting of on-air television commercials.

A secure audio switch comprising: a plurality of host computer interfaces, each for interfacing the secure audio switch with a corresponding host computer, for receiving audio signals from said corresponding host computer; a user audio interface, for interfacing the secure audio switch with at least one user audio device, wherein said at least one user audio device comprises at least one of a speaker or an earphone; an Audio Output Channel (AOC), coupled to said user audio interface comprises audio security device to reduce data leak by intentionally reducing data rate capable of flowing through said AOC to a maximum rate comparable to the minimal rate required for reproducing human speech, and forcing audio data flow only in the direction to said user audio interface by using an analog audio diode and an analog low pass filter in the audio output channel (AOC).

A secure audio switch comprising: a plurality of host computer interfaces, each for interfacing the secure audio switch with a corresponding host computer, for receiving audio signals from said corresponding host computer; a user audio interface, for interfacing the secure audio switch with at least one user audio device, wherein said at least one user audio device comprises at least one of a speaker or an earphone; an Audio Output Channel (AOC), coupled to said user audio interface comprises audio security device to reduce data leak by intentionally reducing data rate capable of flowing through said AOC to a maximum rate comparable to the minimal rate required for reproducing human speech, and forcing audio data flow only in the direction to said user audio interface by using an analog audio diode and an analog low pass filter in the audio output channel (AOC).

Apparatus, systems and methods for receiving one or more input signals and providing output signals in various video, audio, data and mixed formats are described. One or more input processors receive the input signals. Each of the input processors provides one or more packetized signals corresponding to one or more of the input signals received at the input processor. Each output processor can receive one or more packetized signals and generate one or more output signals. The output signals correspond to one or more of the input signals, additional locally generated signals or data relating to the signals or any combination of such signals. Use of a packet router according to the invention allows input signals encoded as one set of packetized signals to be recombined to provide additional packetized signals incorporating the same or different combinations of the packetized signals.

Apparatus, systems and methods for receiving one or more input signals and providing output signals in various video, audio, data and mixed formats are described. One or more input processors receive the input signals. Each of the input processors provides one or more packetized signals corresponding to one or more of the input signals received at the input processor. Each output processor can receive one or more packetized signals and generate one or more output signals. The output signals correspond to one or more of the input signals, additional locally generated signals or data relating to the signals or any combination of such signals. Use of a packet router according to the invention allows input signals encoded as one set of packetized signals to be recombined to provide additional packetized signals incorporating the same or different combinations of the packetized signals.

An imaging system includes first and second light source devices configured to irradiate a subject with lights having different wavelength bands, first and second imaging devices configured to image the subject, and first and second video processing devices configured to process an imaged video of the subject imaged by either of the corresponding imaging devices and to output the processed video to an output unit. The first and second light source devices alternately perform lighting in synchronization with a frame period of the imaged video or an integer multiple thereof based on a genlock signal. The first imaging device performs imaging in synchronization with the lighting of each of the first and second light source devices. The second imaging device performs imaging in synchronization with the lighting of each of the first and second light source devices.

An imaging system includes first and second light source devices configured to irradiate a subject with lights having different wavelength bands, first and second imaging devices configured to image the subject, and first and second video processing devices configured to process an imaged video of the subject imaged by either of the corresponding imaging devices and to output the processed video to an output unit. The first and second light source devices alternately perform lighting in synchronization with a frame period of the imaged video or an integer multiple thereof based on a genlock signal. The first imaging device performs imaging in synchronization with the lighting of each of the first and second light source devices. The second imaging device performs imaging in synchronization with the lighting of each of the first and second light source devices.

A control device includes: generation circuitry configured to output a field signal to a medical imaging device; first detection circuitry configured to detect a horizontal synchronization signal from video data output from the medical imaging device, the video data including at least the horizontal synchronization signal; and a monitoring circuitry configured to monitor whether or not an abnormality occurs in one frame period of the video data based on a period of the horizontal synchronization signal detected by the first detection circuitry for a predetermined n-th time after polarity of the field signal is switched.

A control device includes: generation circuitry configured to output a field signal to a medical imaging device; first detection circuitry configured to detect a horizontal synchronization signal from video data output from the medical imaging device, the video data including at least the horizontal synchronization signal; and a monitoring circuitry configured to monitor whether or not an abnormality occurs in one frame period of the video data based on a period of the horizontal synchronization signal detected by the first detection circuitry for a predetermined n-th time after polarity of the field signal is switched.

A pulse-density-modulation display and image capture system comprises a display comprising a plurality of pixels. Each pixel comprises a light emitter that controllably emits light at a constant current for a variable amount of time and a control circuit connected to the light emitter to control the light emitter to emit light in response to an input signal specifying the desired luminance of the light emitter. The control circuit converts the input signal to a non-contiguous pulse-density-modulation signal and controls the light emitter to emit light in response to the non-contiguous pulse-density-modulation signal with a temporally variable constant-current control signal. Each pixel emits light responsive to a display timing signal. The pulse-density-modulation display and image capture system also comprises a sampling camera that records the pixels and is responsive to a camera timing signal different from the display timing signal.