A video transmitting device includes a first wireless transmitting unit and a second wireless transmitting unit, and includes a wireless transmitting unit to wirelessly make communication with a video receiving device, a content compressing unit configured to compress an Audio-Video (AV) signal, and a processor to transmit the compressed AV signal in a first frequency band to the video receiving device through the first wireless transmitting unit and configured to transmit an uncompressed control signal, which contains information on the AV signal in a second frequency band lower than the first frequency band, to the video receiving device through the second wireless transmitting unit.

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium that provides an enhanced synchronization framework. One of the methods includes a primary and a second device that receive configuration information which identifies one or more actions to be performed by the secondary device when it receives specified pulses of a sequence of pulses from the primary device. The primary device transmits a sequence of pulses. The primary and the secondary device receive a particular pulse from the sequence of pulses. The secondary device determines whether the particular pulse satisfies one or more predetermined criteria and generates an instruction based on the determination.

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium that provides an enhanced synchronization framework. One of the methods includes a primary and a second device that receive configuration information which identifies one or more actions to be performed by the secondary device when it receives specified pulses of a sequence of pulses from the primary device. The primary device transmits a sequence of pulses. The primary and the secondary device receive a particular pulse from the sequence of pulses. The secondary device determines whether the particular pulse satisfies one or more predetermined criteria and generates an instruction based on the determination.

A system and method of synchronizing auxiliary content to a video stream is disclosed that uses a block of bit-vectors linked to a target frame in a video steam. The block of bit-vectors consists of a multi-frame sequence of image bit-vectors. The video stream and block of bit-vectors are transmitted to an end user device that uses the bit-vector block to uniquely identify the target frame. The target frame is used to synchronize auxiliary content to the video stream.

A controller controls multiple camera modules, and processes video images captured by the multiple camera modules. The controller is configured: (i) to output a frame synchronization signal FSYNC to each of the multiple camera modules; (ii) to receive frame data and a transmission synchronization signal SYNC that is synchronized with the frame data; (iii) to process the multiple items of frame data thus received; and (iv) to acquire a time difference between the corresponding frame synchronization signal and the corresponding transmission synchronization signal for each camera module, so as to adjust the timing of the frame synchronization signal according to the time difference.

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.

An imaging system includes a camera unit and a control unit. A control signal transmission circuit of the control unit is configured to set a bias potential of a signal line to one of two or more different potentials at a timing that is set on the basis of a first video synchronization signal so as to output a control signal indicating an imaging condition of an image sensor to the signal line. A signal-processing circuit of the camera unit is configured to receive the control signal and determine the imaging condition from the control signal by determining the bias potential at a timing that is set on the basis of a second video synchronization signal.

An imaging system includes a camera unit and a control unit. A control signal transmission circuit of the control unit is configured to set a bias potential of a signal line to one of two or more different potentials at a timing that is set on the basis of a first video synchronization signal so as to output a control signal indicating an imaging condition of an image sensor to the signal line. A signal-processing circuit of the camera unit is configured to receive the control signal and determine the imaging condition from the control signal by determining the bias potential at a timing that is set on the basis of a second video synchronization signal.

A split-type display system includes a processing device, a display device, and a transmission cable connecting the processing device and the displaying device. The processing device includes a processing unit, a first and a second conversion unit. The display device includes a third and a fourth conversion unit, and a display unit. The processing unit generates a first image signal and a first timing control signal. The first and the second conversion units, respectively, converts the first image signal and the first timing control signal into a second image signal and a second timing control signal. The third and the fourth conversion units, respectively, receive and convert the second image signal and the second timing control signal into a third image signal and a third timing control signal. The display unit displays the third image signal according to the third timing control signal.