Patent classifications
H04N7/083
Multimedia communication bridge
A bridge chip receives a first data stream compliant with the first multimedia communication standard. The first data stream includes first video data of a first incoming video frame, second video data of a second incoming video frame, and information describing a transfer function for the second video data, the information included in a video blanking interval of the first incoming video frame. The bridge chip extracts information describing a transfer function for the second video data. The bridge chip then generates a second data stream compliant with the second multimedia communication standard. The second data stream includes the first video data in a first outbound video frame, the second video data in a second outbound video frame, and the extracted information describing the transfer function for the second video data. Finally, the generated second data stream is transmitted to a destination device.
Video line inversion for reducing impact of periodic interference signals on analog video transmission
Disclosed herein are systems and methods that use video line inversion for reducing impact of periodic interference signals on analog transmission of video signals over wired links/connections. In one aspect of the present disclosure, in certain circumstances, a transmitter may be configured to perform video line inversion on a certain subset of video lines of a video signal prior to transmitting the video signal to the receiver, and a receiver may be configured to perform a corresponding inversion for the same subset of video lines of the video signal received at the receiver. Such video line inversion performed by the transmitter and the receiver may advantageously allow reducing or eliminating the impact of periodic interference signals that might affect the video signal during transmission, resulting in an improved quality of the video rendered at the receiver side.
Video line inversion for reducing impact of periodic interference signals on analog video transmission
Disclosed herein are systems and methods that use video line inversion for reducing impact of periodic interference signals on analog transmission of video signals over wired links/connections. In one aspect of the present disclosure, in certain circumstances, a transmitter may be configured to perform video line inversion on a certain subset of video lines of a video signal prior to transmitting the video signal to the receiver, and a receiver may be configured to perform a corresponding inversion for the same subset of video lines of the video signal received at the receiver. Such video line inversion performed by the transmitter and the receiver may advantageously allow reducing or eliminating the impact of periodic interference signals that might affect the video signal during transmission, resulting in an improved quality of the video rendered at the receiver side.
Control device, medical observation system, control method, and computer readable recording medium
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.
Control device, medical observation system, control method, and computer readable recording medium
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.
Communication apparatus, head mounted display, image processing system, communication method and program
A communication apparatus includes at least one processor executing instructions to operate as an obtaining unit to obtain first video data including repetition of an effective interval in which frame image data of a first video is input and an interval in which image data is not input, second video data comprising repetition of an effective interval in which frame image data of a second video is input and an interval in which frame image data is not input, and communication data other than the video data. Instructions are also executed to operate as a setting unit to set a method of multiplexation of the first video data, the second video data, and the communication data in accordance with the effective interval of the first video data and the effective interval of the second video data, and a transmission unit to transmit data multiplexed in accordance with the set method of multiplexation.
Communication apparatus, head mounted display, image processing system, communication method and program
A communication apparatus includes at least one processor executing instructions to operate as an obtaining unit to obtain first video data including repetition of an effective interval in which frame image data of a first video is input and an interval in which image data is not input, second video data comprising repetition of an effective interval in which frame image data of a second video is input and an interval in which frame image data is not input, and communication data other than the video data. Instructions are also executed to operate as a setting unit to set a method of multiplexation of the first video data, the second video data, and the communication data in accordance with the effective interval of the first video data and the effective interval of the second video data, and a transmission unit to transmit data multiplexed in accordance with the set method of multiplexation.
METHODS AND DEVICES FOR COMPENSATING SAG EFFECT
Disclosed herein are systems and methods for performing SAG effect compensation on a video signal received over an AC-coupled video link. In one aspect, a method for performing SAF effect compensation includes applying a filter to the received video signal to generate a corrected video signal, where a transfer function of the filter is dependent on a transmission parameter that is based on a plurality of parameters of the AC-coupled link. The method further includes extracting predefined content from the corrected video signal, and adjusting the transmission parameter based on a comparison of the extracted predefined content with certain expected content, so that adjusted transmission parameter can be used for one or more subsequent applications of the filter, thereby realizing an adaptive filter.
METHODS AND DEVICES FOR COMPENSATING SAG EFFECT
Disclosed herein are systems and methods for performing SAG effect compensation on a video signal received over an AC-coupled video link. In one aspect, a method for performing SAF effect compensation includes applying a filter to the received video signal to generate a corrected video signal, where a transfer function of the filter is dependent on a transmission parameter that is based on a plurality of parameters of the AC-coupled link. The method further includes extracting predefined content from the corrected video signal, and adjusting the transmission parameter based on a comparison of the extracted predefined content with certain expected content, so that adjusted transmission parameter can be used for one or more subsequent applications of the filter, thereby realizing an adaptive filter.
MULTIMEDIA COMMUNICATION BRIDGE
A bridge chip receives a first data stream compliant with the first multimedia communication standard. The first data stream includes first video data of a first incoming video frame, second video data of a second incoming video frame, and information describing a transfer function for the second video data, the information included in a video blanking interval of the first incoming video frame. The bridge chip extracts information describing a transfer function for the second video data. The bridge chip then generates a second data stream compliant with the second multimedia communication standard. The second data stream includes the first video data in a first outbound video frame, the second video data in a second outbound video frame, and the extracted information describing the transfer function for the second video data. Finally, the generated second data stream is transmitted to a destination device.