In order to eliminate timing offset between reproduction devices when a content transmitted from a distribution device is received and reproduced by a plurality of reproduction devices, data (SCR) indicating the elapsed time from the start of the content, generated by counting clock pulses, and data (FCR) indicating a frame number generated by counting the number of frames reproduced by a decoder (54) are transmitted by the distribution device, and a clock generation unit (103) in each reproduction device is controlled so that data (STC) indicating the elapsed time and data (FTC) indicating the frame number, which are generated in the same manner by each reproduction device, match the transmitted data (SCR, FCR). Synchronization between reproduction devices can thereby be established even when, in a state in which a content is being reproduced by one reproduction device, another reproduction device subsequently connects to the distribution device.

An object of the present disclosure is to reduce a delay in time from the video input of an asynchronous video to the output of a composite video.

The present disclosure is a device and a method, in which the device composes a plurality of video signals which have been input asynchronously into a video signal displayed on one screen, wherein the one screen is constituted by a plurality of sub-screens the number of which is greater than the plurality of video signals, and the plurality of video signals are arranged on a sub-screen out of the plurality of sub-screens such that an output delay of each video signal is reduced to compose the plurality of video signals.

An object of the present disclosure is to reduce a delay in time from the video input of an asynchronous video to the output of a composite video.

The present disclosure is a device and a method, in which the device composes a plurality of video signals which have been input asynchronously into a video signal displayed on one screen, wherein the one screen is constituted by a plurality of sub-screens the number of which is greater than the plurality of video signals, and the plurality of video signals are arranged on a sub-screen out of the plurality of sub-screens such that an output delay of each video signal is reduced to compose the plurality of video signals.

A semiconductor device including an image sensor device controlled by an adjusting circuit, and the adjusting circuit configured to transmit a control signal to the image sensor device to be controlled according to a transmission cycle synchronized with a reference clock, the image sensor device includes a first period during which the control signal is allowed to be supplied to the image sensor device to be controlled and a second period during which the supplying of the control signal to the image sensor device to be controlled is not preferable compared to that in the first period, the adjusting circuit is configured to, when a transmission timing of the control signal determined according to the transmission cycle is within the second period, adjust the transmission timing of the control signal so that the control signal will be transmitted in the first period to the image sensor device.

A semiconductor device including an image sensor device controlled by an adjusting circuit, and the adjusting circuit configured to transmit a control signal to the image sensor device to be controlled according to a transmission cycle synchronized with a reference clock, the image sensor device includes a first period during which the control signal is allowed to be supplied to the image sensor device to be controlled and a second period during which the supplying of the control signal to the image sensor device to be controlled is not preferable compared to that in the first period, the adjusting circuit is configured to, when a transmission timing of the control signal determined according to the transmission cycle is within the second period, adjust the transmission timing of the control signal so that the control signal will be transmitted in the first period to the image sensor device.

A system for at least substantially plesiochronously operating a receiver in communication with a plurality of cameras (e.g., at least two plesiochronously operational cameras) is described. In one or more implementations, the system includes a plurality of cameras. Each camera is configured to generate a signal for transmission via a communications link, and the signal comprises data packets encoded in a forward channel. The system also includes a receiver communicatively coupled to the plurality of cameras via the single-ended communications link. The receiver is configured to generate a synchronization data based upon at least one of the data packets. The receiver is also configured to modulate the signal to encode the synchronization data in a reverse channel so that the signal comprises the forward channel data and the reverse channel data simultaneously.

Methods and devices for presenting a virtual reality image may include rendering at least one image frame received from an application for a virtual reality image for display on a display device. The methods and devices may include receiving a selection of one of a plurality of tear thresholds that define conditions for tearing in a displayed image. The methods and devices may include determining whether the rendered frame is received prior to the selected one of the plurality of tear thresholds, wherein the selected one of the plurality of tear thresholds occurs after a frame timing event that corresponds to a deadline for initiating display of a new frame. The methods and device may include communicating the rendered image frame to the display device for presentation on the display device when the rendered frame is received prior to the selected one of the plurality of tear thresholds.

Methods and devices for presenting a virtual reality image may include rendering at least one image frame received from an application for a virtual reality image for display on a display device. The methods and devices may include receiving a selection of one of a plurality of tear thresholds that define conditions for tearing in a displayed image. The methods and devices may include determining whether the rendered frame is received prior to the selected one of the plurality of tear thresholds, wherein the selected one of the plurality of tear thresholds occurs after a frame timing event that corresponds to a deadline for initiating display of a new frame. The methods and device may include communicating the rendered image frame to the display device for presentation on the display device when the rendered frame is received prior to the selected one of the plurality of tear thresholds.

A semiconductor device includes an adjusting circuit that transmits a control signal to a device to be controlled according to a transmission cycle synchronized with a reference clock. The device to be controlled has a first period during which the control signal is allowed to be supplied to the device to be controlled and a second period during which the supplying of the control signal to the device to be controlled is not preferable compared to that in the first period. The adjusting circuit is configured to, when a transmission timing of the control signal determined according to the transmission cycle is within the second period, adjust the transmission timing of the control signal so that the control signal will be transmitted in the first period.

A semiconductor device includes an adjusting circuit that transmits a control signal to a device to be controlled according to a transmission cycle synchronized with a reference clock. The device to be controlled has a first period during which the control signal is allowed to be supplied to the device to be controlled and a second period during which the supplying of the control signal to the device to be controlled is not preferable compared to that in the first period. The adjusting circuit is configured to, when a transmission timing of the control signal determined according to the transmission cycle is within the second period, adjust the transmission timing of the control signal so that the control signal will be transmitted in the first period.